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Symantec Gateway Security Appliance 440 (10278186)

1. Computer Group Displays all of the computer groups to which you can bind hosts Computer groups let you group computers to which you want to apply the same rules The options include m Everyone m Computer Group 1 Computer Group 2 Computer Group 3 E Computer Group 4 Application Server Reserved Host Adds the MAC address that you specified in the Adapter MAC Address text box to the appliance s DHCP server so it is always assigned to the IP address that you specify in the IP Address text box This is required for application servers Checking this check box ensures that the DHCP server always offers the defined IP address to the computer you are defining or you can set this IP address as a static address on the computer IP Address Defines the IP address of the application server 137 138 Field descriptions Firewall field descriptions Table C 20 Computers tab field descriptions Continued Session Associations Bind with WAN port Binds this computer to a particular WAN port so that its traffic only Optional Dual WAN port goes out through that WAN port This is useful if you have two models broadband accounts configured one for each WAN port and you want that computer s traffic to go through only one of the ISPs Bind with PPPoE Displays all of the PPPoE sessions that you can bind to access groups Session and rules m Session 1 m Session 2 m Session 3 m Ses
2. 24 Configuring a connection to the outside network Network examples Network examples This section describes the most common ways in which the Symantec Gateway Security 400 Series can be installed and deployed in your network Figure 3 1 shows a network diagram of a Symantec Gateway Security 400 Series connected to the Internet The termination point represents any network termination type This is a device that may be provided by your Internet Service Provider ISP or a network switch The computer used for appliance management is connected directly to the appliance using one of the LAN ports on the appliance and uses a browser to connect to the Security Gateway Management Interface SGMI The users within the protected network communicates through the Symantec Gateway Security 400 Series appliance to the Internet Figure 3 1 Connection to the Internet Termination point Symantec Gateway Security 400 Series Configuring a connection to the outside network 25 Network examples Figure 3 2 shows a network diagram of an appliance connecting to an intranet In this scenario the appliance protects an enclave of the larger internal network from unauthorized internal users Enclave traffic from the protected network passes through the Symantec Gateway Security 400 Series appliance and through the Symantec Gateway Security 5400 Series appliance to the Internet Figure 3 2 Connection to an intranet Symantec Gateway Security 540
3. DHCP Client Displays enabled or disabled If enabled the security gateway uses DHCP to request an IP address DNS server and routing information from your ISP or intranet when you start the security gateway DNS IP Address es Displays an IP address provided by your ISP DHCP Lease Time If DHCP Client is enabled this displays the amount of time the security gateway will own the IP address This is obtained when you start the security gateway LAN External Port IP Address Displays the IP address of the security gateway The default value is 192 168 0 1 Physical Address Displays the physical address MAC of the security gateway s LAN port The default value is the factory setting Netmask Displays the network mask address as set on the LAN tab The default value is 255 255 255 0 DHCP Server Displays enabled or disabled depending on whether the security gateway acts as a DHCP server for connected clients Table C 1 Field descriptions 119 Logging Monitoring field descriptions Status tab field descriptions Continued Unit Firmware Version Displays the factory firmware version or the firmware version from the most recent LiveUpdate or manual update Language Version Displays the factory version or the most recent update Model Displays the model number of the security gateway Exposed Host Displays enabled if you have enabled a computer on your network as an exposed host Special
4. The local management interface that is used to configure and manage an individual Symantec security gateway 1 A state or pattern of activity that indicates a violation of policy a vulnerable state or an activity that may relate to an intrusion 2 Logic in a product that detects a violation of policy a vulnerable state or an activity that may relate to an intrusion This can also be referred to as a signature definition an expression a rule a trigger or signature logic 3 Information about a signature including attributes and descriptive text This is more precisely referred to as signature data The data that SESA requires for each SESA integrated product This data lets SESA recognize the integrating product The registration software for the SESA Integration Package SIP A control for setting a value on a continuous range of possible values such as screen brightness mouse click speed or volume A plastic card about the size of a credit card that has an embedded microchip that can be loaded with data used for telephone calling electronic cash payments and other applications and then periodically recharged for additional use Smart cards are currently used to establish identity when logging on to an Internet access provider The protocol that allows email messages to be exchanged between mail servers Then clients retrieve email typically via the POP or IMAP protocol The protocol governing network management and the mo
5. What types of services do you want to make available to internal users What standard application services do you want to make available to external users What types of special application services do you want to allow for external users and hosts Understanding computers and computer groups Computers are nodes behind the appliance This includes permanent resident desktops or laptops on the LAN application servers and any host or printer You configure the appliance to recognize the computer by its MAC physical address 54 Network traffic control Understanding computers and computer groups Computer groups let you create outbound rules and apply them to computers who should have the same access Instead of creating a traffic rule for each individual computer in your network you define computer groups assign each computer to a computer group and then create rules for the group By default all computers are part of the Everyone group and have no restrictions on Internet use until they are assigned to another computer group which has traffic rules configured You can create rules that apply to the Everyone group or for greater control you can divide the computers into one of four computer groups and then assign each group different rules If a computer is not defined in the computers table it belongs to the Everyone computer group Note The security gateway has five computer groups Everyone Group 1 Group 2 Group 3 a
6. 57 Defining outbound access 5 On the Service drop down list select an inbound service 6 Click Add To update an existing inbound rule 1 Inthe left pane click Firewall 2 Inthe right pane on the Inbound Rules tab in the Rule drop down list select an existing inbound rule 3 Click Select 4 Make the changes to the inbound rules fields 5 Click Update To delete an inbound rule 1 Inthe left pane click Firewall 2 Inthe right pane on the Inbound Rules tab in the Rule drop down list select an existing inbound rule 3 Click Delete Defining outbound access By default all computer groups are allowed outbound access Also by default all computers that you protect are in the Everyone computer group When you define an outbound rule for a given computer group and check the Use rules defined in Outbound Rules Screen check box then all other traffic is blocked unless an outbound rule is defined to allow it You must give each outbound rule a unique name You must also specify the type of traffic that the rule allows Outbound rules let you define traffic to permit rather than specifying traffic to deny or block Once an outbound rule is added to the computer group all other traffic is denied unless there is a specific rule to let it pass Following are the predefined outbound services m DNS m FTP m HTTP m HTTPS m Mail SMTP m Mail POP3 m RADIUS Auth m Telnet m VPN IPSec m VPN PPTP m LiveUpdate m SE
7. A variable value in cryptography that is applied using an algorithm to a string or block of unencrypted text to produce encrypted text A key is also a series of numbers or symbols that are used to encode or decode encrypted data See also shared key private key A group of computers and other devices in a relatively limited area such as a single building that are connected by a communications link that enables any device to interact with any other device on the network A telephone channel that is leased from a common carrier for private use A leased line is faster and quieter than a switched line but generally more expensive An attack against a computer or a network to which the attacker already has either physical or legitimate remote access This can include the computer that the attacker is using or a network to which that computer is connected 1 A record of actions and events that take place on a computer 2 The act of creating messages based on events and storing them in a file The process of storing information about events that occurred on the security gateway or network 172 Glossary logon procedure The process of identifying oneself to a computer after connecting to it by means of a directly connected keyboard or over a communications line During the logon procedure the computer usually requests a user name and password On a computer used by more than one person the logon procedure identifies authorized users k
8. Query Services 130 question mark 16 R rear panel 420 and 440 appliance 36 460 and 460R 36 redirecting services 59 remote gateway administrator sharing information 75 remote management 19 resetting the appliance 18 104 restore port assignment default settings 52 restoring configurations 103 160 routing 42 Routing tab 42 134 routing dynamic 42 S scroll lock 21 secure VPN connections 65 Security Gateway Management Interface 10 15 security policies 66 serial console 21 HyperTerminal 21 scroll lock 21 serial port 18 Services tab 60 140 SESA joining 159 event management 163 gathering connection information 161 importing configurations 162 options 161 preparation 160 troubleshooting 164 returning to local management 164 temporarily 165 SESA Console logging on 164 Setup Wizard 18 27 SGMI 10 15 SMTP binding 44 SMTP time outs 62 SNMP tab 95 123 special applications 60 Special Applications tab 61 141 static content filtering 10 static gateway to gateway tunnels 73 static IP 29 Static IP amp DNS tab 33 129 static route entries 42 Static Tunnels tab 75 148 Status tab 118 subnet 71 Symantec Advanced Manager 11 Symantec Advanced Manager for Security Gateways joining SESA 162 event management 163 leaving SESA management 164 returning to local management temporarily 165 Symantec Event Manager 11 Symantec Event Manager for Security Gateways joining SESA 163 leaving SESA management 164 returning to loc
9. Symantec Gateway Security 400 Series Administrator s Guide Supported models Models 420 440 460 and 460R Ss symantec Symantec Gateway Security 400 Series Administrator s Guide The software described in this book is furnished under a license agreement and may be used only in accordance with the terms of the agreement Documentation version 2 1 June 23 2004 Copyright notice Copyright 1998 2004 Symantec Corporation All Rights Reserved Any technical documentation that is made available by Symantec Corporation is the copyrighted work of Symantec Corporation and is owned by Symantec Corporation NO WARRANTY The technical documentation is being delivered to you AS IS and Symantec Corporation makes no warranty as to its accuracy or use Any use of the technical documentation or the information contained therein is at the risk of the user Documentation may include technical or other inaccuracies or typographical errors Symantec reserves the right to make changes without prior notice No part of this publication may be copied without the express written permission of Symantec Corporation 20330 Stevens Creek Blvd Cupertino CA 95014 Trademarks Symantec the Symantec logo and Norton AntiVirus are U S registered trademarks of Symantec Corporation LiveUpdate LiveUpdate Administration Utility Symantec AntiVirus and Symantec Security Response are trademarks of Symantec Corporation Other brands and prod
10. Understanding Client to Gateway VPN tunnels Symantec Gateway Security 400 Series models 460 and 460R support client to gateway VPN tunnel configurations A client to gateway configuration is created when a workstation running Symantec Client VPN software connects to the security gateway from either inside the protected network or from a remote location through the Internet This minimizes costs associated with modem pools and costly 800 dial up charges as clients can use ISPs with local dial up numbers to transparently connect to the security gateway Note Wireless clients can use client to gateway tunnels to secure their connections See Symantec Gateway Security 300 400 Series Wireless Implementation Guide When Symantec Client VPN begins to negotiate a VPN tunnel with the security gateway it does so in Aggressive mode The security gateway will respond to this negotiation Client to gateway VPN tunnels are always initiated by the client and are always in Aggressive mode See Gateway to gateway VPN tunnel interoperability on page 71 Establishing secure VPN connections 77 Configuring client to gateway VPN tunnels Once a VPN tunnel is established remote users can connect to and safely access the resources of the private network through the Internet as if the remote workstation was physically located inside the protected network see Figure 6 2 Figure 6 2 Client to gateway VPN tunnel configuration Symantec Clie
11. on page 119 1 Inthe SGML in the left pane click Logging Monitoring 2 On the View Log tab click Refresh Verifying AVpe operation After you have enabled AVpe you can test its operation by disabling Symantec AntiVirus Corporate Edition on a client workstation and then attempting to connect to the local network If antivirus policy enforcement is properly configured in the absence of enabled Symantec antivirus software all connection attempts should be blocked or warned The status of the secondary antivirus server is not displayed unless the primary server is unreachable Note The client workstation does not receive any notification that network access is blocked and a message is logged 86 Advanced network traffic control About content filtering To verify antivirus policy enforcement operation See Logging Monitoring field descriptions on page 117 1 Uninstall Symantec AntiVirus Corporate Edition from a client workstation that has been configured as part of a computer group with AVpe enabled with connections blocked 2 Open a Web browser and attempt to connect to www symantec com The connection attempt should fail and all communication through the firewall should be blocked 3 Inthe SGML in the left pane click Logging Monitoring 4 Click View Log and check for a warning message indicating that all connection attempts for the particular client are blocked due to policy non compliance If this message is pr
12. 155 IDS IPS field descriptions Table C 34 IDS Protection tab field descriptions Continued Protection List Attack Name Name of the IDS signatures Block and Warn Displays Y for yes or N for no Indicates if the Block and Warn protection setting is enabled for this signature Block Don t Warn Displays Y for yes or N for no Indicates if the Block Don t Warn protection setting is enabled for this signature WAN Displays Y for yes or N for no Indicates if the WAN is protected WLAN LAN Displays Y for yes or N for no Indicates if the wireless LAN and LAN is protected Advanced tab field descriptions You can configure spoof protection on the Advanced tab Table C 35 Advanced tab field descriptions IP Spoof Protection WAN Enables spoof protection on the LAN WLAN LAN Enables spoof protection on the wireless LAN and LAN TCP Flag Validation TCP Flag Validation Blocks and logs any traffic with illegal flag combinations for traffic that is not being denied by the security policy Any traffic denied by the security policy that has one or more bad TCP flag combinations is classified as one of several Network Mapper NMAP port scanning techniques NMAP Null Scan NMAP Christmas Scan and so on 156 Field descriptions Antivirus Policy field descriptions Antivirus Policy field descriptions The AVpe feature lets you monitor client AVpe configurations and if necessary enforce secur
13. Down is displayed when the server is offline Last Update Displays the date numerically when the security gateway last queried the server for virus definition files for example 5 14 2003 Host Displays the IP address or qualified domain name of the primary or secondary antivirus server Product Displays the current product version of the Symantec AntiVirus Corporate Edition that the antivirus server is running for example 7 61 928 Engine Displays the current version of the Symantec AntiVirus Corporate Edition scan engine that is running on the antivirus server for example NAV 4 1 0 15 Pattern Displays the latest version of the virus definition file on the antivirus server for example 155c08 r6 5 14 2003 AV Client Status AV Client IP address of DHCP clients Policy Displays On or Off Indicates whether the client has antivirus policies enforced Status Indicates whether the client is compliant Group Computer group to which the client is assigned Last Update Date and time when the client s antivirus compliance was last checked Product Name of the Symantec antivirus product that the client is using Engine Version of the scan engine in the Symantec antivirus product that the client is using Pattern Version of the client s most recent virus definitions Content Filtering field descriptions The security gateway supports basic content filtering for outbound traffic You use content filtering to restrict
14. Identify remote users VPN gt Client Tunnels gt VPN User Identity Enable client tunnel for selected VPN Group VPN gt Client Tunnels gt Group Tunnel Definition Optionally configure VPN network parameters pushed to VPN gt Client Tunnels gt VPN Network Parameters client during negotiations Optionally configure RADIUS authentication VPN gt Client Tunnels gt Extended User Authentication VPN gt Advanced gt RADIUS Settings Optionally configure Antivirus Policy Enforcement AVpe VPN gt Client Tunnels gt Antivirus Policy Defining client VPN tunnels This section describes how to define client VPN tunnels To define client tunnels See Client Tunnels tab field descriptions on page 149 1 Inthe SGMI in the left pane click VPN 2 Inthe right pane on the Client Tunnels tab under Group Tunnel Definition in the VPN Group drop down list select a VPN group 3 Toenable client VPNs for the chosen VPN Group on WAN or WLAN LAN connections click one of the following m Enable client VPNs on WAN side m Enable client VPNs on WLAN LAN side 4 Optionally under VPN Network Parameters in the Primary DNS text box type the name of the primary DNS server 5 Optionally in the Secondary DNS text box type the name of the secondary DNS server Domain Name System or Service DNS is an Internet service that translates domain names into IP addresses 6 Optionally in the Primary WINS text box type the name
15. Phase 2 IKE negotiation VPN gt VPN Policies Optional Create a dynamic tunnel VPN gt Dynamic Tunnels Establishing secure VPN connections 73 Configuring gateway to gateway tunnels Table 6 4 Dynamic gateway to gateway configuration tasks Continued Define IPsec Security Association Parameters VPN gt Dynamic Tunnels gt IPsec Security Association Select VPN Policy Define the local security gateway VPN gt Dynamic Tunnels gt Local Security Gateway Define the remote security gateway VPN gt Dynamic Tunnels gt Remote Security Gateway Repeat the above steps for the remote security gateway To configure a dynamic gateway to gateway tunnel For information on creating global tunnels see Understanding global tunnels on page 77 See Dynamic Tunnels tab field descriptions on page 145 1 Inthe left pane click VPN 2 On the Dynamic Tunnels tab in the Name text box type a name for the new tunnel To edit an existing tunnel from the VPN Tunnel drop down list select a VPN tunnel 3 Check Enable VPN Tunnel 4 Onthe VPN Policy drop down list select a VPN policy to which you want to bind to the tunnel 5 Ifyou have a multi session PPPoE ISP account under Local Security Gateway in the PPPoE Session drop down list select a PPPoE session to which you want to bind to the tunnel If you do not have a multi session PPPoE ISP account skip this step For models 460 and 460R on the Local Endpoint d
16. last restarted for each event Message Displays the text of the logged event Source Displays the origin of the packet Destination Displays the intended destination of the packet Note Displays the protocol name or number or additional troubleshooting information 120 Field descriptions Logging Monitoring field descriptions Log Settings tab field descriptions The Log Settings tab lets you configure settings that control email notification the types of messages that are logged and the time listed for each log message Table C 3 Log Settings field descriptions Email Forwarding SMTP Server IP address or fully qualified domain name of the SMTP server to use to send the log To email logs this is a required field Send Email From Sender s email address The maximum number of characters is 39 To email logs this is a required field Send Email To Receiver s email address The maximum number of characters is 39 Include multiple receivers by separating each address with a comma To email logs this is a required field Email Log Now After you have typed the SMTP server and the sender and receiver email addresses you can click Email Log Now to send an email of the most current log Syslog Syslog Server IP address of a host running a standard Syslog utility that can receive the log file Log Type System activity Logs all system activity and connection status This type is checked
17. which is connected to a modem On model 460 or 460R if one of the WAN ports fails the security gateway fails over to the other WAN port If both WAN ports fail the security gateway fails over to the serial port If a line is physically disconnected then the line is considered disconnected and the appliance attempts to route traffic to the serial port or the other WAN port If the cable is not physically disconnected the appliance performs line checking every few seconds to determine if a line is active If the line fails it is shown as disconnected on the Logging Monitoring gt Status tab and an alternate route for traffic is attempted See Dial up accounts on page 35 to configure failover for a dial up account See Connecting manually to your PPPoE account on page 32 to configure a echo request for accounts that use PPP To configure failover See Main Setup tab field descriptions on page 128 1 Inthe SGMI in the left pane click WAN ISP 2 To configure an alive indicator for WAN1 on the Main Setup tab under WAN1 External in the Alive Indicator Server text box type the IP address or fully qualified domain name of a server to which to send packets 3 Toconfigure an alive indicator for WAN2 on the Main Setup tab under WAN2 External in the Alive Indicator Server text box type the IP address or fully qualified domain name of a server to which to send packets 4 Click Save You can specify a DNS gateway
18. you can force a dynamic DNS update for WAN1 WAN2 or both ports To force a DNS update See Dynamic DNS tab field descriptions on page 133 1 Inthe SGMI in the left pane click WAN ISP 2 For models 420 and 440 on the Dynamic DNS tab under Service Type click Update 3 For models 460 and 460R do the following m On the Dynamic DNS tab under Service Type in the WAN Port drop down list select the WAN port for which you are configuring TZO m Click Update Disabling dynamic DNS You can disable dynamic DNS if you are hosting your own domain On model 460 or 460R you can disable dynamic DNS for both WAN ports To disable dynamic DNS See Dynamic DNS tab field descriptions on page 133 1 Inthe SGMI in the left pane click WAN ISP 42 Configuring a connection to the outside network Configuring routing 2 For models 420 and 440 on the Dynamic DNS tab under Service Type click Disable 3 For models 460 and 460R do the following m On the Dynamic DNS tab under Service Type in the WAN Port drop down list select the WAN port to disable m Click Disable 4 Click Save Configuring routing If you install Symantec Gateway Security 400 Series appliances on a network with more than one directly connected router you must specify to which router to send traffic The appliance supports two types of routing dynamic and static Dynamic routing chooses the best route for packets and sends the packets to the approp
19. 1 Inthe SGMI in the left pane click WAN ISP 2 For models 420 and 440 in the right pane on the PPPoE tab under Manual Control click Disconnect 3 For models 460 and 460R do the following m Inthe right pane on the PPPoE tab under WAN Port and Sessions in the WAN Port drop down list select the WAN port to disconnect m Inthe Session drop down list select a PPPoE session Under Manual Control click Disconnect Configuring a connection to the outside network 33 Configuring connectivity Static IP and DNS When you establish an account with an ISP you may have the option to purchase a static permanent IP address This lets you run a Web or FTP server because the address remains the same all of the time Any type of account dial up or dedicated can have a static IP address The appliance forwards DNS lookup requests to the specified DNS server for name resolution The appliance supports up to three DNS servers When you specify multiple DNS servers they are used in sequence After the first server is used the next request is forwarded to the second server and so on If you have a static IP address with your ISP or are using the appliance behind another security gateway select Static IP and DNS for your connection type You can specify your static IP address and the IP addresses of the DNS servers you want to use for name resolution Before configuring the appliance to connect with your static IP account gather the foll
20. 400 Series Installation Guide for more information Note To change the language in which the SGMI appears rerun the Setup Wizard and select a different language Warning Anything you type and save on the WAN ISP tab overwrites what you entered previously in the Setup Wizard This may cause a loss of WAN connectivity About dual WAN port appliances Symantec Gateway Security 400 Series models 460 and 460R appliances have two WAN ports WAN 1 and WAN 2 Models 460 and 460R support different types of network settings on each of its WAN ports For example you may have a static IP account through your business as the primary WAN connection and a secondary and less expensive dynamic IP account for a backup connection Each WAN port is treated as a completely different connection While some configurations apply to both WAN ports and for other configurations you must configure each WAN port separately Table 3 1 describes WAN port configurations and whether you must configure one or both WAN ports Table 3 1 WAN port configurations Connection types Configure a connection type foreach WAN See Understanding connection types on port page 29 Backup account You can configure a primary connection for See Dial up accounts on page 35 WAN1 and then connect a modem to the serial port on the back of the appliance for a backup connection Optional network settings You can specify different configurations for See O
21. Corporate Edition server that maintains antivirus information or a network of clients that are unmanaged If your network has an internal Symantec AntiVirus Corporate Edition server when you configure AVpe you designate a primary and optionally a secondary antivirus server that is accessible to your network through LAN or WAN connections If your network has clients that are unmanaged you designate one client as master and all other clients verify their versions against the master The first time an internal client requests a DHCP connection attempts an external connection or any time a client initiates a VPN tunnel originating from your LAN or remotely through the Internet the appliance retrieves the client s antivirus policy configuration and compares it against the current antivirus policy requirements If the client is not in compliance the traffic is warned or blocked as indicated when you configure AVpe and a message is logged 82 Advanced network traffic control Before you configure AVpe Before you You can configure the appliance to monitor client or server configurations at specified intervals the default setting is every 10 minutes Once a client is connected the appliance rechecks the client s antivirus compliance at user defined intervals After the specified interval the default interval is eight hours clients are re queried to check for compliance If the AV policy master shows updates were made the clients a
22. Corporate Edition Server software that is a child of a primary server In a server group all secondary servers retrieve information from the same primary server If the secondary server is a parent server it in turn passes information on to its managed clients A Web browser that can use a secure protocol such as SSL to establish a secure connection to a Web server Netscape Navigator and Internet Explorer both offer this feature The policies practices and procedures that are applied to information systems to ensure that the data and information that is held within or communicated along those systems is not vulnerable to inappropriate or unauthorized use access or modification and that the networks that are used to store process or transmit information are kept operational and secure against unauthorized access As the Internet becomes a more fundamental part of doing business computer and information security are assuming more importance in corporate planning and policy A plan and set of principles that describe the security services that a system is required to provide to meet the needs of its users the system elements required to implement the services and the performance levels required in the elements to deal with the threat environment A grouping of systems for security purposes A security domain can be based on many system attributes such as operating system location function and role A network entity that defines the ga
23. For models 420 and 440 do the following m Inthe right pane on the Main Setup tab under Connection Type click PPTP m Click Save 3 For models 460 and 460R do the following m Under WAN1 External in the Connection Type drop down list click PPTP Touse WAN 2 under WAN 2 External under HA Mode click Normal m To use WAN 2 under WAN2 External in the Connection Type drop down list click PPTP m Click Save 4 Inthe right pane on the PPTP tab under Connection check Connect on Demand 5 Inthe Idle Time out text box type the number of minutes of inactivity after which you want the appliance to disconnect the PPTP connection 6 Inthe Server IP Address text box type the IP address of the PPTP server 7 If you have a static IP PPTP Internet account in the Static IP Address text boxes type the IP address Otherwise leave the value at 0 8 Under User Information in the User Name text box type your ISP account user name 9 Inthe Password text box type your ISP account password 10 Inthe Verify text box type your ISP account password 11 Click Save Verifying PPTP connectivity Once the appliance is configured to use the PPTP account verify that it connects correctly To verify PPTP connectivity See PPTP tab field descriptions on page 132 See Status tab field descriptions on page 118 1 Inthe SGMI in the left pane click WAN ISP 2 For models 420 and 440 in the right pane on the PPTP tab under
24. IP address or fully qualified domain name of the SESA management server Administrator The administrator s login name Password The administrator password Query SESA Click Query SESA to populate the drop down list of organizational units configured on the SESA server Organizational Unit The SESA organizational units configured on the SESA server Join SESA Click here to join the security gateway to the specified SESA Manager Disconnect SESA Click here to temporarily leave SESA management while leaving the SESA configuration intact Reconnect SESA Click here to reconnect to the Symantec Management Console A message warns that any configuration changes made while in local management mode may be overwritten Leave SESA Click here to remove the security gateway from SESA management mode permanently To go back to SESA management you must join SESA again Field descriptions 123 Administration field descriptions Table C 6 Advanced Management tab field descriptions Continued Local SESA Agent Refresh Click Refresh to refresh the Local SESA Agent Status Status Get Configuration Click Get Configuration to download the configuration from the organizational unit selected above At the bottom of the screen you can view SESA Agent status information including SESA mode SESA server SESA ID and other status information SNMP tab field descriptions The SNMP tab lets
25. Manual Control click Connect Configuring a connection to the outside network 35 Configuring connectivity 3 For models 460 and 460R do the following m Inthe right pane on the PPTP tab under WAN Port in the WAN Port drop down list select the WAN port to connect m Under Manual Control click Connect 4 Inthe left pane click Logging Monitoring In the right pane on the Status tab under WAN1 External Port the connection status is displayed If you are not connected verify that you have typed your user name and password correctly If you are still not connected call your ISP and verify your account information and that your account is active Connecting manually to your PPTP account You can manually connect to or disconnect from your PPTP account For models 460 and 460R you can manually control the connection for either WAN port This is helpful for troubleshooting connectivity To manually connect to your PPTP account For models 420 and 440 you can connect or disconnect to your PPTP account For models 460 and 460R you select the WAN port to control and then connect or disconnect See PPTP tab field descriptions on page 132 To manually connect your PPTP account 1 Inthe SGMI in the left pane click WAN ISP 2 For models 420 and 440 in the right pane on the PPTP tab under Manual Control click Connect 3 For models 460 and 460R do the following m Inthe right pane on the PPTP tab under WAN Port in
26. NAT mode it behaves as an 802 1D bridge device Block ICMP Requests Clicking Enable blocks Internet Control Message Protocol ICMP requests such as PING and traceroute to the WAN ports To allow ICMP requests click Disable WAN Broadcast Storm Protection Enabling broadcast storm protection protects regular traffic from an overabundance of broadcast traffic For example a condition may exist in which a broadcast message results in many responses each of which results in still more responses This filter triggers when 63 of the WAN buffers are taken up by broadcast packets You may want to disable this feature to allow games that require broadcast packets IPsec Passthru Settings IPsec Type These values are used in Encapsulation Security Payloads ESP IPSec VPNs from some vendors for software clients for IPsec pass thru compatibility These settings do not apply to the VPN gateway on the security gateway Keep this setting at the default 2 SPI Security Parameter Indices unless instructed by Symantec Technical Support to change it The None setting lets VPN clients be used in exposed host mode if they are having problems connecting from behind the security gateway Options include m 1SPI ADI Assured Digital m 2SPI Normal Cisco Client Symantec Client VPN Nortel Extranet Checkpoint SecureRemote m 2SPI C Cisco VPN Concentrator 30x0 series formerly Altiga m Others Redcreek Ravlin Cli
27. SGMI in the left pane click LAN 2 Inthe right pane on the Port Assignments tab under Physical LAN Ports click Restore Defaults The appliance reboots when the port settings are saved Chapter Network traffic control This chapter includes the following topics Planning network access Understanding computers and computer groups Defining inbound access Defining outbound access Configuring services Configuring special applications Configuring advanced options Planning network access The Symantec Gateway Security 400 Series appliance includes firewall technology that lets you configure the firewall component to meet your security policy requirements When configuring the firewall identify all computers nodes to be protected on your network Note This chapter uses the term computer to define anything that has its own IP address in the network for example a desktop PC laptop server print server terminal server network photocopier and so on Developing a security policy helps you to identify what you need to configure See Appendix A in the Symantec Gateway Security 400 Series Installation Guide Before configuring the security gateway s firewall component consider the following Learn about computers and computer groups See Understanding computers and computer groups on page 53 What kinds of users will be protected by the security gateway Will all users have the same access and privileges
28. Setup tab do the following m To configure the WAN1 port under WAN1 select a high availability mode The options are Normal Off and Backup The default for WAN 1 is Normal To configure the WAN2 port under WAN2 select a high availability mode The options are Normal Off and Backup The default for WAN 2 is Backup 3 Click Save Load balancing SMTP binding Symantec Gateway Security 400 Series models 460 and 460R appliances each have two WAN ports On these appliances you can configure HA LB between the two WAN ports You can set the percentage of packets that is sent over WAN1 or WAN2 You enter a percentage only for WAN1 the remainder of the packets are then sent over WAN2 If you have a slower connection use a lower value for that WAN port for best performance To configure load balancing See Advanced tab field descriptions on page 136 1 Inthe SGMI in the left pane click WAN ISP 2 On the Advanced tab under Load Balancing in the WAN 1 Load text box type the percentage of traffic to pass through WAN 1 The value in the WAN 2 Calculated display is calculated automatically such that the sum of the two values is 100 3 Click Save Use SMTP binding when you have two different Internet connections with different ISPs used over different WAN ports It ensures that email sent by a client goes over the WAN port associated with your email server If the SMTP server is on the same subnet as one of the WAN p
29. This eliminates the need to have a static permanent IP address for each computer on the LAN and is useful if you have a limited number of IP addresses available Each time a computer connected to the LAN is turned on DHCP assigns it an IP address from the range of available addresses Note Each client computer that you want to use DHCP must have its network configuration set to obtain its IP address automatically By default the range of IP addresses that the appliance can assign is from 192 168 0 2 to 192 168 0 xxx where xxx is the number of clients to support plus two For example if you support 50 clients on your appliance the last IP address in the range is 192 168 0 52 The DHCP server on the appliance serves IP addresses to up to 253 computers connected to it If you change the IP address of the appliance adjust the DHCP IP address range appropriately See Monitoring DHCP usage on page 51 Table 4 1 shows the default start and end IP addresses for each model The default range is based on the recommended number of concurrent clients for each model The number of clients you can support may vary depending on your traffic characteristics Table 4 1 Default DHCP IP address ranges 420 440 50 192 168 0 2 192 168 0 51 460 460R 75 192 168 0 2 192 168 0 76 The DHCP server only supports class C networks Class C networks have addresses from 192 0 0 0 through 223 255 255 0 The network number is the first three o
30. a connection type for WAN1 under WAN1 External in the Connection Type drop down list click DHCP m To select a connection type for WAN2 under WAN2 External in the Connection Type drop down list click DHCP 4 Click Save Point to Point Protocol over Ethernet PPPoE is used by many Asymmetrical Digital Subscriber Line ASDL providers It is a specification for connecting many users on a network to the Internet through a single dedicated medium such as a DSL account You can specify whether to connect or disconnect your PPPoE account manually or automatically This is useful to verify connectivity You can configure the appliance to connect only when an Internet request is made from a user on the LAN for example browsing to a Web site and disconnect when the connection is idle unused This feature is useful if your ISP charges on a per usage time basis You can use multiple logins if your ISP account allows multi session PPPoE to obtain additional IP addresses for the WAN These are called PPPoE sessions The login may be the same user name and password as the main session or may be different for each session depending on your ISP Up to five sessions or IP addresses are allowed for models 420 and 440 and up to three sessions for each WAN port on models 460 and 460R LAN hosts are bound to a session on the Computers tab in the SGMI See Configuring LAN IP settings on page 49 Note Multiple IP addresses on a WAN p
31. add to the list For example yoursite com 4 Click Add Repeat steps 3 and 4 until you have added all URLs to the list 5 Click Save List To remove a URL from an allow or deny list 1 Inthe SGML in the left pane click Content Filtering 2 From the Delete URL drop down list select the URL that you want to delete 3 Click Delete Entry 4 Click Save List Enabling content filtering Content filtering is enforced at the computer group and VPN group level After you have set up the allow or deny lists you must enable content filtering for each computer group or VPN group for which you want to filter traffic See Defining inbound access on page 56 To enable content filtering You can enable content filtering for LAN based clients using the Computer Groups tab in the Firewall section You can enable content filtering for WAN based clients using the Client Tunnels tab in the VPN section 88 Advanced network traffic control Monitoring content filtering To enable content filtering for a computer group See Computer Groups tab field descriptions on page 138 1 2 4 In the left pane click Firewall On the Computer Groups tab under Security Policy in the Computer Group drop down list select the computer group for which you want to enable content filtering Under Content Filtering check Enable Content Filtering and do one of the following m To filter content based on the deny list click Use Deny List
32. address ping Packet INternet Groper PKI public key infrastructure policy port port scan PPP Point to Point Protocol PPPoE Point to Point Protocol over Ethernet PPTP Point to Point Tunneling Protocol prefix preshared key Glossary 173 The interface between the hardware of the computer and applications for example a word processing program For personal computers the most popular operating systems are MacOS Windows DOS and Linux A defined security gateway rule that allows or denies outbound traffic Outbound rules are configured to match specific protocols or services like FTP or Web and you can apply them to different computer groups on the LAN For example you may have a computer group defined that has three outbound rules to allow email Web and DNS traffic only A unit of data that is formed when a protocol breaks down messages that are sent along the Internet or other networks Messages are broken down into standard sized packets to avoid overloading lines of transmission with large chunks of data Each of these packets is separately numbered and includes the Internet address of the destination Upon arrival at the recipient computer the protocol recombines the packets into the original message The interception of packets of information for example a credit card number that are traveling across a network A unique string of characters that a user types as an identification code to rest
33. and model information m View Log View the appliance log file m Log Settings Set the parameters for viewing the appliance log file m Troubleshooting Enable testing tools and debugging utilities Command buttons generally save validate or cancel changes you have to the right pane content They vary with the left pane menu option selected The right pane content consists of the group of fields within the menu tab selected The valid entries in each of the fields are described in Field descriptions on page 117 Clicking this button will open the help file to a page corresponding to the menu tab that is currently selected You can then navigate to other help pages by clicking the Previous and Next buttons 18 Administering the security gateway Managing administrative access Tips for using the SGMI The following list describes how to best work within the SGMI m To submit a form click the appropriate button in the user interface rather than pressing Enter on your keyboard m If you submit a form and receive an error click the Back button in your Web browser This retains the data you entered m InIP address text boxes press the Tab key on your keyboard to switch between boxes m Ifthe appliance automatically restarts after you click a button to submit the form in the user interface wait approximately one minute before attempting to access the SGMI again Managing administrative access You manage administrative acc
34. appliance 1 Inthe SGML in the left pane click Logging Monitoring 2 Inthe right pane on the Status tab under Unit view the Firmware Version Logging monitoring and updates 103 Backing up and restoring configurations Backing up and restoring configurations You can back up your appliance configuration at any time You should do this after you initially configure the appliance or before changing the configuration significantly Note You should not use a configuration backup file from an older version of the firmware to restore your settings unless instructed to do so by Symantec Technical Support The backup file is created in the same folder on your hard drive where you put the symcftpw application In the symcftpw application you can specify where to store the backup file such as a a floppy disk This is useful to store the configuration in a safe location such as a fire safe box To back up and restore configurations Backing up your configuration is good practice to ensure that you can restore the configuration if the appliance fails To back up an appliance configuration To turn off the power press the power button on the back panel of the appliance Turn DIP switches 1 and 2 to the on up position Turn on the appliance by pressing the power button Copy the symcftpw utility from the product CD ROM to a folder on your hard drive Double click the symcftpw icon O uo A WwW N e In the Server IP text box t
35. are testing with one of the tools The address is not validated so ensure that you type the address accurately Tool Troubleshooting tools Options include Single WAN port m PING models m DNS Lookup Click Run Tool to start the troubleshooting tool Tool Troubleshooting tools Options include Dual WAN port m PING models m DNS Lookup Click Run thru WAN 1 or Run thru WAN 2 depending which WAN port you want to troubleshoot Result Result Displays result of tool test Administration field descriptions The Administration feature of the security gateway lets you manage administrator access to the SGMI with a password and allowed IP addresses You can also configure SNMP for system monitoring and LiveUpdate to receive firmware updates This section contains the following topics m Basic Management tab field descriptions m Advanced Management tab field descriptions m SNMP tab field descriptions m Trusted Certificates tab field descriptions m LiveUpdate tab field descriptions Basic Management tab field descriptions The Basic Management tab helps you control access to the SGMI with the administration password and allowed IP addresses Table C 5 Basic Management tab field descriptions Administration admin s Password Password used to access the SGMI Password The user name is always admin The login is case sensitive Verify Password Retype the admin s password Field descripti
36. assignment c cccccccsessssssssssceseeseseseeseseseesesesceseseeseseecseseeseseseesesesseseseeseeeseseeeeaeesesaeeees 53 SGS Access Point Secured port assignment cccccccccsessssesesseceseeseseseeeeseseseeseeeeseseeseseeeeseeeseeseeeseesees 53 Enforce VPN tunnels port assignment 0 cscesecesesesessesesesesesessesesescsesecscscsescseseseseseseeeeeaeaeaeaeeeseeseees 53 Network traffic control Planning network access riirii erin Er E CEE E EKER ERA AEEA A aE O A OESE AEE EEE Ea Ei ine 55 Understanding computers and computer groups ssssssesessereesssserersststsssseststsststsestnstseseseesnseseetesssestnnste 55 Defining computer group membership 20 0 eesesesesesesesesesessssesscecesescsesesesssseseeesesesesesesesesesenecsseeseaees 56 Defining computer Srowps sorererorieoriir riata i a nS A AT stusersvcxaaduenusvvesnsearecteanetbaneeaaneeraaiess 57 Defining inbound access ineine o E ERER ANET R RR A eal E 58 Defining Out bound ACCESS nere o neiaie raora iea rE A AN AO OE REA TETEA E Ra E SES 59 Outbound rulesexam ple cenana ER saan A AA de 60 COMP PUTING Servi ES sissies erre EEE EA OTSING VEEE EEN 61 R dir cting Services sanserne sia ih Mae TE EEE E E E 61 Configuring special applications ccceessssssssesssscesesesesessssssssssescsesesesesesessseesseseseseseseseseseeeesseeseseseseaeesees 62 Configuring advanced Options c cccccccccsssssessssssssssssesesecesesesesesssesesscscsesesesesesssssesscesesesese
37. basic reset On the rear panel of the appliance quickly press the reset button 1 To perform a reset to the default configuration On the rear panel of the appliance press and hold the reset button 1 for five seconds To perform a reset to the reserved application 1 Onthe rear panel of the appliance turn DIP switch 4 4 to the on position up 2 Quickly press the reset button 1 Interpreting LEDs The LEDs on the front of each appliance indicate the status of the appliance There are six LEDs four for the appliance and two for wireless The wireless LEDs generally only illuminate when a compatible Symantec Gateway Security WLAN Access Point option is inserted Figure 9 6 shows the front panel on all 400 Series appliances This figure is for reference only the full description of each feature is available in the Symantec Gateway Security 400 Series Installation Guide Figure 9 6 Symantec Gateway Security 400 Series appliance front panel SYMANTEC GATEWAY SeCuRITY Table 9 2 describes each LED Table 9 2 LEDs 1 Power Illuminates when the appliance is turned on 2 Error Illuminates if there is a problem with the appliance 3 Transmit Illuminates or flashes when traffic is being passed over the LAN or WAN ports 4 Backup Illuminates or flashes when the serial port is being used or is not 00000 functioning correctly 5 Wireless Illuminates when the wireless card is inserted and functioning properly
38. broadband accounts one on each WAN port and you want a particular computer to use only one This is useful for servers or applications that must always use a specific WAN IP address such as FTP The default is disabled Defining computers If you are using an ISP with PPPoE sessions you bind a host to a session WAN IP on this tab Checking Reserved Host ensures that the DHCP server always offers the defined IP address to the computer you are defining or you can set this IP address as a static address on the computer See Computers tab field descriptions on page 137 To configure a new computer 1 Inthe left pane click Firewall 2 On the Computers tab in the Host Name text box type a host name 3 Inthe Adapter MAC Address text box type the address of the host s network interface card NIC Network traffic control 55 Understanding computers and computer groups 4 Ifthe computer is an application server to which you want to allow access to an inbound rule or to reserve an IP address for a computer that is not an application server under Application Server check Reserved Host See Defining inbound access on page 56 5 Inthe IP Address text box type the IP address of the host 6 Under Computer Group on the Computer Group drop down list select a group for your host to join The computer group properties are defined on the Firewall gt Computer Groups tab See Defining inbound access on page 56 7 Un
39. connection status by default Connections Logs all connections allowed by outbound rule policies ALLOWED by outbound rules Connections DENIED _ Logs all attempted connections denied by an outbound rule policy by outbound rules antivirus policy enforcement AVpe and content filtering Connections Logs all connections allowed by inbound rules ALLOWED by inbound rules Connections DENIED Logs all attempted connections denied by inbound rules by inbound rules Detected attack Logs all detected attacks including port scanning fragmentation and Trojan horse attacks This type is checked by default Debug information Displays additional debug information that is useful for troubleshooting Only use this option when you are troubleshooting a problem and then disable it after you have solved the problem Time NTP Server IP address of the non public Network Time Protocol NTP Server Field descriptions 121 Administration field descriptions Troubleshooting tab field descriptions The Troubleshooting tab helps you troubleshoot your security gateway with debug options and testing tools Table C 4 Troubleshooting tab field descriptions Broadcast Debug Level Forward WAN packets Enables forwarding of WAN packets to LAN This is useful to check to LAN the WAN packets for troubleshooting without having to set up additional equipment Testing Tools Target Host IP address or fully qualified domain name of host you
40. field descriptions LAN IP amp DHCP tab field descriptions The LAN IP amp DHCP tab lets you set the security gateway s IP address and configure the security gateway to act as a DHCP server Table C 10 LAN IP amp DHCP tab field descriptions LAN IP IP Address IP address of the security gateway s internal interface The current IP address appears in the text boxes The default value is 192 168 0 1 You cannot set the security gateway s IP address to 192 168 1 0 Netmask Security gateway netmask The current netmask appears in the text boxes The default value is 255 255 255 0 126 Field descriptions LAN field descriptions Table C 10 LAN IP amp DHCP tab field descriptions Continued DHCP DHCP Server Clicking Enable makes the security gateway act as a DHCP server To use another DHCP server or if the clients use static IP addresses click Disable Range Start IP Address First IP address in the range of IP addresses that you want the security gateway to assign to clients For example if you want the security gateway to assign IP addresses in the range 172 16 0 2 to 172 16 0 75 in the Range Start IP Address text boxes type 172 16 0 2 Range End IP Address Last IP address in the range of IP addresses that you want the security gateway to assign to clients In the previous example type 172 16 0 75 in the Range End IP Address text boxes DHCP Table Host Name Name of the computer to whi
41. for local and remote name resolution over your VPN For local and remote name resolution over VPN gateway to gateway or client to gateway the appliance can use a DNS gateway A backup DNS gateway can be specified The DNS gateway handles name resolution but should it become unavailable the backup generally a DNS gateway through your ISP can take over 45 46 Configuring a connection to the outside network Configuring advanced WAN ISP settings To configure a DNS gateway You can configure a primary and backup DNS gateway See Advanced tab field descriptions on page 136 To configure a DNS gateway 1 Inthe SGMI in the left pane click WAN ISP 2 On the Advanced tab under DNS Gateway in the DNS Gateway text boxes type the IP address of the DNS gateway 3 Click Save To configure DNS gateway backup 1 Inthe SGMI in the left pane click WAN ISP 2 On the Advanced tab under DNS Gateway check Enable DNS Gateway Backup 3 Click Save Optional network settings Optional network settings identify your appliance to the rest of your network If you plan to connect to or refer to your appliance by name you must configure these settings Some ISPs authenticate by the MAC physical address of your Ethernet port This is common with broadband cable DHCP services You can clone your computer s adapter address to connect to your ISP with the Symantec Gateway Security 400 Series appliances This is called MAC cloning o
42. fully qualified domain name www is the host symantec is the second level domain and com is the top level domain An FQDN always starts with a host name and continues to the top level domain name so www sesa symantec com is also an FQDN A method to exchange files between computers Like the Hypertext Transfer Protocol HTTP which transfers displayable Web pages and related files and the Simple Mail Transfer Protocol SMTP which transfers email FTP is an application protocol that uses the Internet s TCP IP protocols See also TFTP A network point that acts as an entrance to another network In a company network a proxy server acts as a gateway between the internal network and the Internet A gateway is also any computer or service that passes packets from one network to another network See also default gateway security gateway A VPN tunnel definition that applies to all outbound traffic from the host or gateway For example a global VPN tunnel is defined at a branch office gateway to the main office The branch office will forward all traffic destined for the Internet into the VPN tunnel so that the main office firewalls can filter it before going to the Internet A standard set of commands used to structure documents and format text so that it can be used on the Web The set of rules for exchanging files text graphic images sound video and other multimedia files on the World Wide Web Part of the TCP IP suite of protocols the b
43. if an attack is detected The log file is sent as a text message 94 Logging monitoring and updates Managing logging To configure email forwarding See Log Settings tab field descriptions on page 120 1 Inthe SGML in the left pane click Logging Monitoring 2 Onthe right pane on the Log Settings tab in the SMTP Server text box type the IP address or DNS name of the Simple Mail Transfer Protocol SMTP server that you want to receive the Log file 3 Inthe Send Email From text box type the email address of the sender of the email 4 Inthe Send Email To text box type the email address of the receiver of the email 5 Click Save 6 To send the current log messages without waiting for the log to become full click Email Log Now Using Syslog Sending log messages to a Syslog server lets you store log messages for long term A Syslog server listens for log entries forwarded by the appliance and stores all log information for future analysis The Syslog server can be on the LAN or WAN or behind a VPN tunnel Note The date and time on messages in the Syslog server are the time they arrived at the Syslog server and not the time that the appliance logged the event that triggered the log message To use Syslog See Log Settings tab field descriptions on page 120 1 Inthe SGML in the left pane click Logging Monitoring 2 Inthe right pane on the Log Settings tab under Syslog in the Syslog Server text box type th
44. information at a predefined interval to ensure that all security gateways being managed have the same configuration The SESA Manager also updates all security gateways when the configuration they are using is changed You can also request a configuration from SESA at any time without waiting for the automatic update To obtain a configuration from SESA 1 Inthe SGMI in the left pane click Administration 2 Inthe right pane on the Advanced Management tab click Get Configuration Logging on to the Symantec Management Console Once your security gateway joins SESA you log on to the Symantec Management Console to begin managing the security gateway To log on to the Symantec management console 1 On your local security gateway system or on the SESA Manager open a browser window 2 Browse to https lt SESA manager IP address or domain name gt sesa ssmc where lt SESA manager IP address or domain name gt is the IP address or fully qualified domain name of your SESA manager 3 Inthe Logon name text box type the SESA administrator s user name 4 Inthe Password text box type the SESA administrator s password 5 Click Log On Troubleshooting problems when joining SESA If the Join SESA procedure fails verify the following m Your information for connecting to SESA is correct m IP address or domain name for the SESA Manager m SESA administrator user name and password m Ifyou are using a specific organizational unit ensur
45. is sent 3 Click Save To force a DHCP renew 1 Inthe SGML in the left pane click WAN ISP 2 For models 420 and 440 on the Advanced tab under Optional Connection settings click Force Renew 3 For models 460 and 460R do one of the following m Torenew WANI on the Advanced tab under Optional Connection Settings click Renew WAN1 m Torenew WAN2 on the Advanced tab under Optional Connection Settings click Renew WAN2 Advanced PPP settings You can configure the echo requests that the appliance sends to verify that the appliance is connected to the PPPoE account To configure PPP settings See Advanced tab field descriptions on page 136 1 Inthe SGML in the left pane click WAN ISP 2 On the Advanced tab under PPP settings do the following m Inthe Time out text box type the number of seconds before trying another echo request m Inthe Retries text box type the number of times for the appliance to attempt to reconnect 3 Click Save Note To reset the echo request settings click Restore Defaults This also resets the MTU number and the DHCP Idle Renew settings to their default values Maximum Transmission Unit MTU You can specify the maximum size of the packets that arrive at and leave the appliance through the WAN port This is useful if a computer or another appliance along the transmission path requires a smaller MTU On models 460 and 460R if you are configuring WAN1 and WAN2 you can set a different MT
46. known as IKE Internet Key Exchange tunnels automatically generate authentication and encryption keys Typically a long password called a pre shared key also known as a shared secret is entered The target security gateway must recognize this key for authentication to succeed If the key matches then Security Parameter Index SPI authentication and encryption keys are automatically generated and the tunnel is created The security gateway usually re keys generates a new key automatically at set intervals to ensure the continued integrity of the key Dynamic tunnels always use the Global IKE Policy for Phase 1 negotiation Each tunnel uses its own VPN Policy for Phase 2 The default Phase 1 mode is Main Mode Dynamic tunnels support up to five remote subnets or a global tunnel can be enforced If a global tunnel is enforced all traffic leaving the unit on the WAN port goes through the tunnel There can be only one tunnel per WAN port which forces a global tunnel You may configure up to 50 tunnel definitions per unit See Understanding global tunnels on page 77 Configuration tasks for dynamic gateway to gateway tunnels Table 6 4 summarizes the tasks that are required to configure dynamic gateway to gateway VPN tunnels Note Complete each step in Table 6 4 twice first for the local security gateway and then for the remote security gateway Table 6 4 Dynamic gateway to gateway configuration tasks Configure a VPN Policy
47. name IP address physical address and status for each client This table takes up to one hour to fully update after the appliance has been rebooted To view DHCP usage See LAN field descriptions on page 125 Inthe SGML in the left pane click LAN Configuring port assignments Port assignments on the security gateway let you specify if the LAN port resides on a trusted or untrusted network Trusted ports are for networks not using VPN authentication to connect to the LAN Untrusted ports are for wireless or wired networks using VPN clients to connect to LAN resources You can connect many network devices to the LAN ports routers switches client machines or other Symantec Gateway Security 400 Series appliances For these options select the standard port assignment If you are connecting a Symantec Gateway Security 400 Series appliances that is configured as a wireless access point to a LAN port you can secure the wireless connection using VPN technology See the Symantec Gateway Security 300 400 Series Wireless Implementation Guide Once a port assignment is set the untrusted ports enable and enforce encrypted VPN traffic using global tunnels to the appliance or using IPsec pass thru to WAN side endpoints Standard port assignment When LAN ports are designated as standard the appliance acts as a typical switch it forwards traffic based on MAC address and traffic does not reach the security gateway engine unless it was spec
48. number of kilobytes allowed through a tunnel before a rekey is required The default value is 2100000 KB 2050 MB The maximum value is 4200000 KB 4101 MB Inactivity Time out Number of minutes a tunnel can be inactive before it is terminated Type 0 for no timeout tunnel remains active Perfect Forward Perfect Forward Secrecy PFS provides additional protection from Secrecy attackers trying to guess the current ISAKMP key by using Diffie Hellman to establish a shared secret When the tunnel mode is Main Mode the Diffie Hellman group is based on what both sides negotiated during Phase 1 In Aggressive Mode the Diffie Hellman group is always Group 2 Not all clients and security gateways are compatible with PFS Options include m DH Group 1 768 bits long m DH Group 2 1024 bits long m DH Group 5 1536 bits long VPN Status tab field descriptions The Status tab shows the status of your VPN tunnels and client users Table C 32 Status tab field descriptions Sa a Dynamic VPN Tunnels Status Status of the selected tunnel Name Name of the selected tunnel Negotiation Type Configured negotiation type This field applies to dynamic VPN tunnels only Security Gateway Name of the selected security gateway Remote Subnet Address of the remote subnet Encryption Method Configured encryption method Static VPN Tunnels Status Displays connected or disconnected Name Name of the se
49. of the primary WINS server This is an optional step Windows Internet Naming Service WINS is a system that determines the IP address associated with a particular network computer 7 Optionally in the Secondary WINS text box type the name of the secondary WINS server 8 Optionally in the Primary Domain Controller text box type the name of the primary domain controller 9 Optionally under Extended User Authentication check Enable Extended User Authentication 10 Optionally in the RADIUS Group Binding text box type the RADIUS Group Binding name The RADIUS Group Binding name must match the filter ID parameter returned from the RADIUS server 11 To enable Antivirus Policy Enforcement AVpe under WAN Client Policy do the following m Check Enable Antivirus Policy Enforcement Establishing secure VPN connections 79 Configuring client to gateway VPN tunnels m To log a warning to the Symantec Gateway Security log that a user is connecting that is not compliant with AVpe policy click Warn Only m To stop the user s traffic if they are not compliant with the AVpe policy click Block Connections 12 Toenable content filtering do the following m Under VPN Network Parameters in the Primary DNS text box type the IP address or fully qualified domain name of the security gateway m Under WAN Client Policy check Enable Content Filtering m To permit traffic and block other traffic click Use Allow List m To block traffic and p
50. pass between VLANs m SGS Access Point Secured Enables VPN security to be enforced at the roaming access point or switch level m Enforce VPN tunnels Allow IPSec pass thru Explicit untrusted association Requires a mandatory VPN tunnel between the wireless VPN client and the security gateway IPsec traffic is allowed to pass through a subsidiary switch with tunnel termination points located at the primary security gateway and the client WAN ISP field descriptions The Symantec Gateway Security 300 400 Series WAN ISP functionality provides connections to the outside world This can be the Internet a corporate network or any other external private or public network You can also configure the WAN port to connect to an internal LAN when the security gateway is protecting an internal subnet This section contains the following topics m Main Setup tab field descriptions m Static IP amp DNS tab field descriptions m PPPoE tab field descriptions m Dial up Backup amp Analog ISDN tab field descriptions m PPTP tab field descriptions m Dynamic DNS tab field descriptions m Routing tab field descriptions m Advanced tab field descriptions 128 Field descriptions WAN ISP field descriptions Main Setup tab field descriptions On the Main Setup tab you select your connection type and configure the security gateway s identification settings Table C 12 Main Setup tab field descriptions Connection Type Connect
51. read only managers for TRAP collection only 4 Click Save To verify SNMP communication Contact the SNMP server administrator and have them send a GET from the SNMP server to your appliance The appliance responds by sending status information to the SNMP server If it does not respond check that the SNMP server IP address and community string are correct Also check that the SNMP server is accessible from the appliance Selecting logging levels The log file contains only the types of information you choose This is useful for isolating a problem or attack If you select Debug information performance may be affected by the number of messages that are created You should select this option only for troubleshooting purposes and then disable it when you are done To select log levels See Logging Monitoring field descriptions on page 117 1 Inthe SGML in the left pane click Logging Monitoring 96 Logging monitoring and updates Managing logging 2 Inthe right pane on the Log Settings tab under Log Type check the types of information you want to be logged 3 Click Save Setting log times Network Time Protocol NTP is an Internet standard protocol that ensures accurate synchronization to the millisecond of computer clock times in a network If you do not configure an NTP server standard public NTP servers are used If an NTP server is not reachable when an event occurs the appliance records the tim
52. that are defined in the Outbound Rules tab you must specify the type of traffic that the host as amember of that logical group may pass Do this by creating an outbound rule When this option is used hosts are only allowed to pass traffic that matches the outbound rule list for that access group The outbound default state of the security gateway is that all outbound traffic is blocked until outbound rules are configured to allow certain kinds of outbound traffic Inbound Rules field descriptions The Inbound Rules tab lets you define the type of traffic that can access your internal network Table C 22 Inbound Rules fields description Inbound Rules Rule Select an inbound rule to edit or delete Rule Definition Name Type a new name when adding a rule Enable Rule Check to enable the inbound rule Application Server Shows the configured application servers available for inbound rules These application servers are configured on the Computers tab Service Type of traffic applied to the rule It includes both the list of predefined services and any custom services that you have created Inbound Rules List Enabled Indicates whether the inbound rule is enabled for use Name Name of the inbound rule Service The service that this inbound rule governs such as HTTP or FTP 140 Field descriptions Firewall field descriptions Outbound Rules tab field descriptions The Outbound Rules tab lets you
53. the events and create alerts and reports security gateway from SESA You can join a security gateway to SESA in one of the following ways m Join SESA and use the default organizational unit If you are new to using SESA to manage security gateways this is the simplest way to connect a security gateway on the SESA Manager It requires the least amount of preparation on the SESA Manager m Join SESA and use a configuration that is associated with a specific organizational unit m Join a security gateway to SESA for the purpose of logging and reporting events only To join SESA Use one of the following procedures to join Symantec Gateway Security 400 Series appliances to SESA To join the local security gateway to SESA using the default organizational unit 1 2 4 In the SGML in the left pane click Administration In the right pane on the Advanced Management tab under Centralized Management click Centralized Monitoring and Policy Management Under Symantec Enterprise Security Architecture SESA Registration do the following Management Server Type the IP address or the fully qualified domain name of the SESA server Administrator Type the SESA administrator logon name Password Type the SESA administrator logon password Click Join SESA To join the security gateway to SESA using a specific organizational unit 1 2 In the SGMI in the left pane click Administration In the right pane on the Advan
54. the appliance This is useful for untrusted networks such as wireless to keep traffic secure When establishing a tunnel on the WAN the appliance s subnet 192 168 0 0 by default is configured for the client and allows a split tunnel so that the client can still access the Internet directly and only traffic destined for the LAN is sent through the VPN tunnel Global tunnels terminating on the WAN port of a Symantec Gateway Security 400 Series appliance are only able to access networks on the LAN side of the appliance When the VPN traffic arrives on the WAN port it is decrypted and sent out on the LAN The appliance does not support the transmission of decrypted VPN traffic on the WAN port This means that if a global tunnel is defined between two Symantec Gateway Security 400 Series appliances traffic is only allowed to pass between the LAN of one appliance and the LAN of the other No client can access the networks between the two appliances including the Web 78 Establishing secure VPN connections Configuring client to gateway VPN tunnels Configuration tasks for client to gateway VPN tunnels Table 6 9 describes the tasks that are required to configure a client to gateway VPN tunnel Table 6 9 Client to gateway VPN tunnel configuration tasks Configure a VPN Policy Phase 2 IKE negotiation optional VPN gt VPN Policies Select the VPN policy that applies to the tunnel VPN gt Advanced gt Global VPN Client Settings
55. the content to which clients have access For example to restrict your users from seeing gambling Web sites you configure content filtering to deny access to the gambling URLs that you specify Table C 37 Select List Content filtering configuration fields List Type The possible list types include m Deny default m Allow A deny list specifies content that you do not want your clients to view An allow list specifies the content that you permit your clients to view Select a list and then click View Edit 158 Field descriptions Content Filtering field descriptions Table C 37 Content filtering configuration fields Continued Modify List Input URL Type a URL to add to the deny or allow list and then click Add For example www symantec com or myadultsite com mypics me html The maximum length of a URL is 128 characters Each filtering list can hold up to 100 entries You add URLs one at a time You must use a fully qualified domain name Content filtering cannot be performed using an IP address Delete URL In the drop down list select a URL that you want to delete and then click Delete Entry Current List URL Depending on the list that you selected shows all the URLs entered for that list Appendix Joining security gateways to SESA This chapter includes the following topics About joining SESA Preparing to join SESA Trusted certificates Joining Symantec Gateway Securit
56. the specific signature m Block Don t Warn Drop the packet but do not log You can configure the following options for enabling and disabling IDS and IPS signature detection and logging m Select All to enable or disable detection of ALL signatures m Enable disable detection of each signature individually To set protection preferences See IDS Protection tab field descriptions on page 154 1 Inthe SGMI in the left pane click IDS IPS 2 Inthe right pane on the IDS Protection tab under IDS Signatures from the Name drop down list select an IDS signature To apply the preferences to all the signatures click gt gt Select All lt lt 3 Under Protection settings next to Action select an action Preventing attacks 91 Enabling advanced protection settings 4 Next to Protection Area select an interface to protect 5 Click Update Enabling advanced protection settings Advanced protection settings help you protect your network beyond attacks that can be identified by atomic signatures IP spoofing protection Any non broadcast or multicast packet arriving on a WAN interface with a source IP address that matches any internal subnet is blocked and flagged as an IP spoofing attempt Internal subnets are derived from the LAN side subnet address of the appliance and the static route entries on the appliance for the LAN interface Likewise any non broadcast or non multicast traffic that arrives at the internal o
57. up account on the Dial up Backup amp Analog ISDN tab under Manual Control click Dial 3 To disconnect from the dial up account on the Dial up Backup amp Analog ISDN tab under Manual Control click Hang Up Verifying dial up connectivity Once you have configured the appliance to use your dial up account verify that it connects correctly If you are not connected verify the following information m You have typed your user name and password correctly m Initialization string is correct for your model modem Check your modem documentation for more information m Cables are securely plugged in m Phone jack to which the modem is connected is functioning m Verify your account information with your ISP and that your account is active To verify dial up connectivity See Dial up Backup amp Analog ISDN tab field descriptions on page 130 See Status tab field descriptions on page 118 1 Inthe SGMI in the left pane click WAN ISP 2 Inthe right pane on the Dial up Backup amp Analog ISDN tab under Manual Control click Dial 3 Inthe left pane click Logging Monitoring 4 In the right pane on the Status tab under WAN1 External Port next to Connection Status your connection status is displayed Monitoring dial up account status You can view and refresh the status of your dial up account connection To monitor dial up account status See Dial up Backup amp Analog ISDN tab field descriptions on p
58. using the Symantec management console For details on managing with the Symantec management console see the Symantec Event Manager and Advanced Manager for Security Gateways Group 2 v2 1 Administrator s Guide Figure 3 4 Network with wireless clients Wireless clients Wireless clients Symantec Gateway Security 400 Series Symantec Gateway Security 400 Series Symantec management console Protected network Understanding the Setup Wizard The Setup Wizard launches automatically the first time you browse to the appliance The Setup Wizard helps you to configure basic connectivity to the Internet or an intranet The Setup Wizard verifies the current status of the WAN connection before proceeding If the WAN port called WAN 1 on model 460 460R is connected to an active network the Setup Wizard guides you through configuring LiveUpdate and setting the administrator password If the WAN port is not currently active the Setup Wizard guides you through entering your ISP specific connection parameters Later for model 460 460R use the WAN ISP tab in the SGMI to configure WAN 2 or to configure advanced connection settings for either WAN port 28 Configuring a connection to the outside network About dual WAN port appliances You can rerun the Setup Wizard at any time after the initial installation To run the Setup Wizard on the WAN ISP tab gt Main Setup window click Run Setup Wizard See the Symantec Gateway Security
59. within the warranty period or refund the money You paid for the Appliance Symantec warrants that the hardware component of the Appliance the Hardware shall be free from defects in material and workmanship under normal use and service and substantially conform to the written documentation accompanying the Appliance for a period of three hundred sixty five 365 days from the date of original purchase of the Appliance Your sole remedy in the event of a breach of this warranty will be that Symantec will at its option repair or replace any defective Hardware returned to Symantec within the warranty period or refund the money You paid for the Appliance The warranties contained in this agreement will not apply to any Software or Hardware which A has been altered supplemented upgraded or modified in any way or B has been repaired except by Symantec or its designee Additionally the warranties contained in this agreement do not apply to repair or replacement caused or necessitated by i events occurring after risk of loss passes to You such as loss or damage during shipment ii acts of God including without limitation natural acts such as fire flood wind earthquake lightning or similar disaster iii improper use environment installation or electrical supply improper maintenance or any other misuse abuse or mishandling iv governmental actions or inactions v strikes or work stoppages vi Your failure to follow applicable
60. your security events from the Symantec management console Security events and log messages can be viewed in a variety of predefined or custom report formats By collecting and formatting information from Symantec and third party supported products the Symantec Event Manager consolidates and normalizes security event data making impending threats more easily identifiable 12 Introducing the Symantec Gateway Security 400 Series Intended audience Combining powerful alert notification enterprise reporting and role based administration with a highly scalable secure architecture the Symantec Event Manager is ideally suited for medium to large enterprises and supported security services environments If you have separately purchased an Event Collector for a third party firewall product you can also view events generated by that product Symantec Event Manager for Security Gateways is installed on the SESA Manager computer You join each local security gateway to SESA using the controls provided in the Security Gateway Management Interface SGMI Symantec Event Manager is automatically installed if you install the Symantec Advanced Manager for Security Gateways Intended audience This manual is intended for system managers or administrators responsible for installing and maintaining the security gateway It assumes that readers have a solid base in networking concepts and an Internet browser Where to find more information The Sy
61. 0 Series Symantec Gateway Security 400 Series SGMI Protected network Enclave network 26 Configuring a connection to the outside network Network examples Figure 3 3 shows parallel subnets protected by two Symantec Gateway Security 400 Series appliances In this scenario each appliance protects its internal network from unauthorized internal users Traffic from each protected network passes through the Symantec Gateway Security 400 Series to the Internet One Symantec Gateway Security 400 Series is managed locally by the SGMI and the other is managed by the Symantec management console For details on managing with the Symantec management console see the Symantec Event Manager and Advanced Manager for Security Gateways Group 2 v2 1 Administrator s Guide Figure 3 3 Parallel networks Symantec Gateway Security 400 Series Symantec Gateway Security 400 Series Symantec management console Protected network Protected network Configuring a connection to the outside network 27 Understanding the Setup Wizard Figure 3 4 shows the addition of wireless clients connecting to the Symantec wireless LAN card using VPN tunnels In this scenario each appliance protects its internal network and its wireless clients from unauthorized internal users Traffic from the protected network passes through the Symantec Gateway Security 400 Series to the Internet Again one network is managed using SGMI and one
62. 0 Series Network security best practices Chapter Administering the security gateway This chapter includes the following topics m Logging on to the Security Gateway Management Interface m Navigating the user interface m Managing administrative access m Managing the security gateway using the serial console Logging on to the Security Gateway Management Interface Symantec Gateway Security 400 Series appliances are managed using a browser based console called the Security Gateway Management Interface SGMI The SGMI is a standalone management console for local management and log viewing Use one of the following supported Web browsers to connect to SGMI Microsoft Internet Explorer version 5 5 or 6 0 SP1 m Netscape version 6 23 or 7 0 To ensure compatibility with Web site using older HTTP you may need to clear the proxy settings in the browser before connecting to the SGMI Install the appliance according to the instructions in the Symantec Gateway Security 400 Series Quick Start Card or the Symantec Gateway Security 400 Series Installation Guide before connecting to the SGMI The interface you see when you connect to the SGMI may vary slightly depending on the model you are managing because the number of LAN and WAN ports differs between models as shown in Table 2 1 Table 2 1 Interfaces by model 420 440 1 4 1 460 460R 2 8 1 To connect to the SGMI You can connect to the SGMI either locally or remotely To con
63. 00 Series locally ccececcsessesesesseceeeeeseeeeeseseeeeseseeseeeees Managing Symantec Gateway Security 400 Series through SESA o ccccecesesseseeeeeeeeseeeseeeeeeseetees 13 Intended audiente esorare Gxacaee sess dnt sos E cals E EEr EREE RE E EE 14 Where to find more information 00 0 0 cccccsssssesesesssssssseessesesesesesessssssesseesesesesesesessseseescacseaeseseseseeeeseseseseasees 14 Network security best practices sisccisnsecccsavasssossaveececdnancesasecsavanioserst cntnssescessibesentusdvenste sdaetesedensenencepianensiass 15 Administering the security gateway Logging on to the Security Gateway Management Interface cccccscsscesesesesesesseseesseceseseseseseseseeeeesees 17 Navigating the User interface scic ciscascscssciscsscsccastscsestethetescesadocsacveecuacdasnsostssasssssavtedsesteusacdsedgedecbeddadecceaegeticd 18 Understanding left pane main menu options 00 0 cceeseseseseseesesssseeesececesesesesesessssseeeseseseseseeetseeseees 19 Understanding right pane features 0 cecssesesesessssessssseseseseseseseesssseceseseseseseseseseseessecseseseaeseeeseees 19 Tips for tising the SGM passessi anni a e i n evdnsis R a e 20 Managing administrative access c ccccsssessssesssseseesesesesceseseeceseeeesesesceseseeseseseeseseeecaeseesesesecseeeseaeeeeseeeseesees 20 Setting the administration password cccccsessssssessesesseseseecesesseceseseeceseseeseseeceseeeeseseeseseseeseeeseeseeesaes 20 Configuring r
64. 1 66 Phase 2 66 tunnel persistence 71 tunnel status 80 VPN Policies tab 67 151 VPN settings 17 Advanced 69 79 153 Client Tunnels 78 84 88 149 Client Users 69 150 Dynamic Tunnels 73 145 Static Tunnels 75 148 VPN Policies 67 151 VPN Status 152 VPN Status tab 152 VPN tunnel remote management 19 W WAN port configuration 23 28 configuring MTU 39 connection 23 WAN ISP advanced settings 43 configuring idle renew 38 WAN ISP multiple IP addresses 30 WAN ISP settings 17 Advanced 39 43 44 46 136 Analog ISDN 36 DHCP 30 Dial up Backup amp Analog ISDN 37 130 Dynamic DNS 40 41 133 Main Setup 45 128 PPPoE 31 129 PPTP 34 132 Routing 42 134 Static IP amp DNS 33 129 Winnuke 90 Wireless settings 17 wizards Join SESA 159 System Setup 160 186 Index
65. 2 External do the following Host Name text box Type a host name The host and domain names are case sensitive Domain Name text box Type a domain name for the appliance MAC Address text boxes Type the WAN network adapter address MAC you are cloning 4 Click Save After you click Save the appliance restarts Network connectivity is interrupted 48 Configuring a connection to the outside network Configuring advanced WAN ISP settings Chapter Configuring internal connections This chapter includes the following topics m Configuring LAN IP settings m Configuring the appliance as a DHCP server m Configuring port assignments Configuring LAN IP settings LAN settings let you configure your Symantec Gateway Security 400 Series appliance to work in a new or existing internal network Each appliance is assigned an IP address and netmask by default you can change these settings at any time This way you can specify an IP address and netmask for the appliance that fits your existing network You can also configure the appliance to work as a DHCP server for LAN clients This assigns IP addresses to the clients dynamically so that you do not have to configure each client to use a static IP address Note Models 420 and 440 have four LAN ports while models 460 and 460R have eight LAN ports For each port you must specify the port settings using the port assignments These settings are used to configure secure wireless and
66. 2 v2 1 are integrated with the Symantec Enterprise Security Architecture SESA to provide a common framework to manage multiple Symantec Gateway Security 400 Series appliances and third party products from a single centralized location The SESA framework consists of a set of scalable extensible and secure technologies that make integrated security products interoperable and manageable regardless of the size and complexity of your network When managing security gateways through SESA you can manage multiple security gateways from a single user interface regardless of the network on which your SESA Manager resides You can group them to reflect your organizational structure and create common configurations that are shared by security gateways that have the same security postures The event management capabilities of Symantec Event Manager installed with Symantec Advanced Manager give you up to date information that you need to make informed decisions about the security of your network and related devices See the Symantec Event Manager and Advanced Manager for Security Gateways Group 2 v2 1 Administrator s Guide for details on using the Symantec Management Console Symantec Advanced Manager for Security Gateways Group 2 v2 1 Symantec Advanced Manager for Security Gateways is a software security solution installed on the SESA Manager computer that plugs into the Symantec management console It provides a Web based graphical user i
67. 4 alive indicator 28 36 45 all bin 100 allow list 86 analog connections 29 antivirus clients 85 Antivirus Policy settings 17 156 AVpe 83 antivirus server status 85 app bin firmware 97 appliance front panel LEDs 105 Asymmetrical Digital Subscriber Line ASDL 30 atomic signature Bonk 89 Fawx 89 HTML buffer overflow 90 Jolt 89 Land 89 Nestea 89 Newtear 89 Overdrop 89 Ping of Death 89 Syndrop 89 TCP UDP flood protection 90 Teardrop 90 Winnuke 90 attacks 89 automatic updates 98 AVpe 81 configuring 82 log messages 85 overview 10 AVpe tab 83 backing up and restoring configurations 103 backing up and restoring configurations 160 backup dial up account 35 37 Basic Management tab 19 20 121 BattleNet 60 Bonk 89 broadband cable modem 29 broadband connection 29 c cable modem 29 certificates 160 change administrator password 19 appliance LAN IP address 49 SGMI language 28 Channel Service Unit CSU 29 Client Tunnels tab 78 84 88 149 Client Users tab 69 150 client to gateway tunnels 76 client to gateway tunnels global policy settings 79 clusters creating tunnels to Symantec Gateway 5400 Series clusters 72 command buttons 17 compression tunnel 66 computer group membership 54 computer groups defining 55 Computer Groups tab 56 84 88 138 computers and computer groups 53 Computers tab 54 137 configuration backing up and restoring 103 configuring advanced connection settings 38 advanced options 62 adva
68. 68 0 3 192 168 100 4 192 168 0 4 This type of network configuration usually connects two subnets on the same network or as shown in Figure 6 1 two remote offices through the Internet Once a VPN tunnel is established users protected by a security gateway at one site can establish a tunneled connection to the security gateway protecting the remotely located site The remote user can connect to and access the resources of the private network as if the remote workstation was physically located inside the protected network Establishing secure VPN connections 71 Configuring gateway to gateway tunnels The Symantec Gateway Security 400 Series can connect to another Symantec Gateway Security 400 Series appliance or to one of the following appliances m Symantec Gateway Security 5400 Series m Symantec Gateway Security 300 Series m Symantec Firewall VPN Appliance Symantec Gateway Security 400 Series security gateways support creating a VPN tunnel to up to five remote subnets behind Symantec Enterprise Firewall or Symantec Gateway Security 5400 Series appliances but not to another Symantec Gateway Security 400 Series appliance or Symantec Firewall VPN Appliance Tunnels between two Symantec Gateway Security 400 Series appliances are only made to the subnet on the LAN side of the appliance and only support the first set subnet mask of the five sets of fields which you define on the VPN gt Dynamic Tunnels or VPN gt Static Tunnels tabs If y
69. 7 2 3 255 displays all pcAnywhere hosts with IP addresses beginning with 127 2 3 A subnet address including the subnet mask A code appended to the end of a telephone number for billing purposes for example a calling card number A standard dial up telephone connection the type of line that is established when a call is routed through a switching station See also leased line A Web based console that provides SESA content viewing and management capabilities letting administrators perform event management group management and security policy configuration management A type of attack When a session is initiated between the Transmission Control Program TCP client and server in a network a very small buffer space exists to handle the handshaking often referred to as the three way handshake or exchange of messages that sets up the session The session establishing includes a SYN field that identifies the sequence in the message exchange An attacker can send a number of connection requests very rapidly and then fail to respond to the reply This leaves the first packet in the buffer so that other legitimate connection requests can t be accommodated Although the packet in the buffer is dropped after a certain period of time without a reply the effect of many of these bogus connection requests is to make it difficult for legitimate requests for a session to get established In general this problem depends on the operating system providing cor
70. AN network using the WAN IP address Pre defined security gateway rules override this feature and forward packets for the defined service to the pre defined LAN host The process of using communications to send a file from one computer to another In communications a protocol must be agreed upon by sending and receiving computers before a file transfer can occur See also TFTP A program or section of code that is designed to examine each input or output request for certain qualifying criteria and then process or forward it accordingly See also content filtering A program that protects the resources of one network from users on other networks Typically an enterprise with an intranet that lets its workers access the wider Internet uses a firewall to prevent outsiders from accessing its own private data resources A denial of service attack aimed directly at the firewall Operational code that contains all the features and functions of a hardware appliance Firmware can usually be upgraded to add fixes or enhancements Physical hardware component that stores data usually firmware and configuration settings on a hardware appliance Flash data is not lost when the appliance is powered off A program that contains code that when executed bombards the selected system with requests in an effort to slow down or shut down the system A URL that consists of a host and domain name including a top level domain For example www symantec com is a
71. APPLIANCE 300 400 SERIES LICENSE AND WARRANTY AGREEMENT SYMANTEC CORPORATION AND OR ITS SUBSIDIARIES SYMANTEC IS WILLING TO LICENSE THE SOFTWARE INCLUDED WITH THE APPLIANCE YOU HAVE PURCHASED TO YOU AS AN INDIVIDUAL THE COMPANY OR THE LEGAL ENTITY THAT WILL BE UTILIZING THE SOFTWARE REFERENCED BELOW AS YOU OR YOUR AND TO PROVIDE WARRANTIES ON THE APPLIANCE ONLY ON THE CONDITION THAT YOU ACCEPT ALL OF THE TERMS OF THIS LICENSE AND WARRANTY AGREEMENT READ THE TERMS AND CONDITIONS OF THIS LICENSE AND WARRANTY AGREEMENT CAREFULLY BEFORE USING THE APPLIANCE THIS IS A LEGAL AND ENFORCEABLE CONTRACT BETWEEN YOU AND SYMANTEC BY OPENING THIS PACKAGE BREAKING THE SEAL CLICKING ON THE AGREE OR YES BUTTON OR OTHERWISE INDICATING ASSENT ELECTRONICALLY REQUESTING A LICENSE KEY OR USING THE SOFTWARE AND THE APPLIANCE YOU AGREE TO THE TERMS AND CONDITIONS OF THIS AGREEMENT IF YOU DO NOT AGREE TO THESE TERMS AND CONDITIONS CLICK ON THE I DO NOT AGREE OR NO BUTTON IF APPLICABLE AND DO NOT USE THE SOFTWARE AND THE APPLIANCE 1 Software License The software the Software which accompanies the appliance You have purchased the Appliance is the property of Symantec or its licensors and is protected by copyright law While Symantec continues to own the Software You will have certain rights to use the Software after Your acceptance of this license This license governs any releases revisions or enhanceme
72. Applications Displays enabled or disabled If you have configured any special applications this field displays enabled NAT Mode Displays enabled or disabled If you disable NAT mode this disables the firewall security functions and the security gateway behaves as a standard router Only use this setting for intranet security gateway deployments where for example the security gateway will be used as a wireless bridge on a protected network When NAT mode is enabled the default the security gateway behaves as a 802 1D network bridge device SESA Status Displays Deactivated or Activated SESA ID If the SESA Status is Activated the SESA ID is displayed here Policy Displays the Policy associated with the Organizational Unit of which the appliance is a member Location Displays the Location Settings associated with the Organizational Unit of which the appliance is a member Policy Revision Displays the revision level of the policy Location Revision Displays the revision level of the location settings View Log tab field descriptions The View Log tab shows a list of system events Table C 2 View Log field descriptions Log UTC Time Coordinated Universal Time UTC which is the Greenwich Mean Time that the message was logged If the security gateway cannot obtain the current time from a network time protocol NTP server it displays the number of seconds from when the security gateway was
73. CE Server or LiveUpdate server to bring their virus definitions into compliance Table C 21 Field descriptions 139 Firewall field descriptions Computer Groups tab field descriptions Continued Content Filtering Enable Content Filtering If you enable content filtering for the selected computer group the security gateway allows or blocks access to URLs contained in the Content Filtering allow and deny lists For each group options include m Use Deny List A list of blocked URLs all others are allowed m Use Allow List default A list of URLs that permit access to the sites all other sites are blocked Access Control Outbound Rules No restrictions A host assigned to this group may pass any traffic to the external network You do not need to define rules for access groups in this category The No Restrictions setting overrides any outbound rules This is the default setting Block ALL outbound access When an access group is configured to block all Internet access behavior all outbound traffic is blocked A host assigned to this group may not pass any traffic through the security gateway No rules need to be defined for access groups in this category This is useful for computers that only require access to the LAN and do not require access to the external network for example network printers Use rules defined in Outbound Rules Screen When an access group is configured to use rules
74. Cp ready 6 Wireless Illuminates or flashes when at least one wireless client is connected connect 1 106 Logging monitoring and updates Interpreting LEDs The LEDs on the front panel of the appliance have three states solid on flashing and solid off The combination of the Error and Transmit LED states indicate the status of the appliance Table 9 3 describes the LEDs state combinations and appliance status that they indicate Table 9 3 LEDs states and appliance status Solid off Solid on Normal operation Solid off Flashing Transmitting receiving Data from LAN Flashing Flashing m MAC address not assigned m Firmware problem Appliance is ready for a forced download m Appliance detected an error and cannot recover Flashing Solid on Configuration mode Solid on Solid on Hardware problem Flashing once Solid off RAM error Flashing twice Solid off Timer error Flashing thrice Solid off DMA error Solid on Flashing once LAN error Solid on Flashing twice WAN error Solid on Flashing thrice Serial error Solid off Solid off No power Both flashing alternately m Download in progress m Appliance is writing to flash LiveUpdate and firmware upgrade LED sequences When you apply a firmware upgrade using the symcftpw utility or TFTP or if LiveUpdate is downloading and applying a firmware upgrade there is a unique sequence of LED flashing that indicates the progress Ta
75. IT SYMANTEC GATEWAY SECURITY 300 400 XX SERIES APPLIANCE APPLIANCE xx SESSION CLIENT TO GATEWAY VPN ADDITIVE LICENSE AND 8 0 MEDIA KIT To Be Completed by Licensee IMPORTANT The concurrent sessions shall not be legally licensed or authorized for use unless and until Licensee enters the serial number of the applicable Appliance for which these concurrent sessions are licensed in the space provided on the face of this Additive License Certificate This license does not require a serial number a license key or registration to enable the concurrent sessions licensed hereunder to be used on the Appliance bearing the serial number set forth on the face of this Additive License Certificate Licensing 115 SYMANTEC GATEWAY SECURITY APPLIANCE 300 400 SERIES CLIENT TO GATEWAY VPN ADDITIVE LICENSE AND 8 0 MEDIA KIT AMENDMENT TO SYMANTEC SOFTWARE LICENSE AND WARRANTY This is a legal agreement between the end user of the additive license the Licensee and Symantec Corporation and or its subsidiaries Symantec which amends the Symantec license and warranty agreement also known as the end user license agreement or EULA contained in the original media pack s of the Symantec software product s the Software listed on the face of this Additive License Certificate the Certificate Accordingly this Certificate and the rights granted herein are only effective as to end users who have received a media pack of the Software li
76. Logging Monitoring field descriptions The security gateway provides configurable system logging features and tabs for viewing the system logs and monitoring system status It also has built in testing tools for troubleshooting and connectivity verification This section contains the following topics m Status tab field descriptions m View Log tab field descriptions m Log Settings tab field descriptions m Troubleshooting tab field descriptions 118 Field descriptions Logging Monitoring field descriptions Status tab field descriptions The Status tab shows the current conditions and settings of the security gateway Table C 1 Status tab field descriptions WAN External Port Connection Status Displays whether the WAN port is connected or disconnected to the Single WAN port Internet or an internal network models Netmask Derived from Dynamic Host Configuration Protocol DHCP or static WAN 1 IP configuration External Port IP Address Displays the IP address of the WAN port based on your local Dual WAN port configuration models WAN 2 Physical Address Media Access Control MAC address of the security gateway External Port Default Gateway Displays an IP address based on your local configuration Used by the Dual WAN port security gateway to route any packets destined to any networks it models does not recognize In most configurations this is the IP address of your ISP s router
77. PN Policy for Phase 2 negotiation 74 Establishing secure VPN connections Configuring gateway to gateway tunnels When defining static tunnels you must enter an authentication key as well as an encryption key if encryption is used The keys must match on both sides of the VPN In addition a Security Parameter Index SPI is manually typed and included with every packet transmitted between security gateways The SPI is a unique gateway identifier that indicates the set of keys that belongs to each packet Static tunnels support up to five remote subnets or a global tunnel can be enforced If a global tunnel is enforced all traffic leaving the unit on the WAN port goes through the tunnel There can be only one tunnel per WAN port which forces a global tunnel You may configure up to 50 tunnel definitions per unit See Understanding global tunnels on page 77 Encryption and authentication key lengths When you define a static tunnel you must type an encryption key and an authentication key Each key has a specific key length based on the method that you chose For each method a key length is shown for both ASCII characters and Hex characters Table 6 5 defines encryption key lengths Table 6 5 Encryption key lengths DES 8 18 Ox 16 hex digits 3DES 24 50 Ox 20 hex digits AES 128 16 18 Ox 20 hex digits AES 192 24 50 Ox 20 hex digits AES 256 32 66 Ox 20 hex digits Table 6 6 defines authent
78. S INCLUDING ANY LOST PROFITS OR LOST DATA ARISING OUT OF THE USE OR INABILITY TO USE THE SOFTWARE EVEN IF SYMANTEC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES IN NO CASE SHALL SYMANTEC S OR ITS LICENSORS LIABILITY EXCEED THE PURCHASE PRICE FOR THE APPLIANCE The disclaimers and limitations set forth above will apply regardless of whether You accept the Software or the Appliance 5 U S Government Restricted Rights RESTRICTED RIGHTS LEGEND All Symantec products and documentation are commercial in nature The software and software documentation are Commercial Items as that term is defined in 48 C F R section 2 101 consisting of Commercial Computer Software and Commercial Computer Software Documentation as such terms are defined in 48 C F R section 252 227 7014 a 5 and 48 C F R section 252 227 7014 a 1 and used in 48 C F R section 12 212 and 48 C F R section 227 7202 as applicable Consistent with 48 C F R section 12 212 48 C F R section 252 227 7015 48 C F R section 227 7202 through 227 7202 4 48 C F R section 52 227 14 and other relevant sections of the Code of Federal Regulations as applicable Symantec s computer software and computer software documentation are licensed to United States Government end users with only those rights as granted to all other end users according to the terms and conditions contained in this license agreement Manufacturer is Symantec Corporation 20330 Stevens Creek Blvd Cupert
79. S Gateway __ If you specify a DNS gateway and it becomes unavailable this Backup enables the appliance to use your ISP s DNS servers as a backup Firewall field descriptions The Symantec Gateway Security 300 400 Series includes firewall technology that lets you define inbound and outbound rules governing the traffic that passes through the security gateway When configuring the firewall you need to identify all nodes computers that are protected on your network This section contains the following topics m Computers tab field descriptions m Computer Groups tab field descriptions m Inbound Rules field descriptions m Outbound Rules tab field descriptions m Services tab field descriptions Field descriptions Firewall field descriptions m Special Applications tab field descriptions m Advanced tab field descriptions Computers tab field descriptions Before configuring outbound or inbound rules you must identify all nodes computers on the Computers tab Table C 20 Computers tab field descriptions Host Identity Host Select a host name network name from the list to edit or delete Host Name Defines the name of the host a computer on your internal network Use a short descriptive name You should use the host name or DNS name in the computer s network properties Adapter MAC Address Physical address of the host s network interface card NIC usually an Ethernet or wireless card
80. SA Registration click Disconnect SESA The security gateway temporarily leaves SESA and you can perform management functions from the local SGMI To return to SESA management after leaving temporarily 1 Inthe SGMI in the left pane click Administration 2 Inthe right pane on the Advanced Management tab under Symantec Enterprise Security Architecture SESA Registration click Reconnect SESA When you reconnect to SESA the security gateway reestablishes its previous connection to SESA To return to local management permanently 1 Inthe SGMI in the left pane click Administration 2 Inthe right pane on the Advanced Management tab under Symantec Enterprise Security Architecture SESA Registration click Leave SESA If you want to return to SESA management after clicking Leave SESA you must complete the Join SESA procedure again See Joining SESA on page 162 166 Joining security gateways to SESA Leaving SESA Glossary action activation active address transforms administrator aggressive mode alert alert threshold alive indicator allow list antivirus application application server ARP Address Resolution Protocol asynchronous transmission attack signature authentication A predefined response to an event or alert by a system or application The process of making a configuration available for download and notifying all associated security gateways that it is there Success
81. SA Server m SESA Agent m RealAudio1 m RealAudio2 m RealAudio 3 m PCATCP m PCAUDP 58 Network traffic control Defining outbound access m TFTP m SNMP If you have services that are not on this list or a service that does not use its default port you can create your own custom services You must create the custom services before creating the outbound rule See Configuring services on page 59 Outbound rule example As shown in Figure 5 1 an outbound rule enabled for FTP service for computer group 2 allows the members of computer group 2 outbound FTP service An outbound rule enabled for Mail SMTP service for the Everyone computer group lets all members of the Everyone group send outbound email An outbound rule enabled for FTP service for computer group 2 would allow the members of group 2 outbound FTP service If computer group 1 has no rules all outbound traffic is allowed by default Figure 5 1 Outbound rules example Outbound rule Outbound rule Name E_Mail_1 Name FTP_2 Computer group Computer group Everyone Group 2 Service Service FTP Mail SMTP Everyone computer group l l Computer group 1 Computer group 2 Define outbound access You can manage your outbound access by creating a rule updating it when your needs change or deleting it when you no longer need it You can also temporarily disable outbound access for troubleshooting or controlling traffic See Outbound Rules tab field desc
82. Select the WAN port for which you are configuring PPPoE Single WAN port Dual WAN port models models Port and Sessions Session Lets you configure how the WAN port uses PPPoE Dual WAN port To configure a single session PPPoE account click Session 1 and models then click Select To configure a multi session PPPoE account select the session to configure and then click Select 130 Field descriptions WAN ISP field descriptions Table C 14 PPPoE tab field descriptions Continued Connection Connect on Demand Lets the security gateway create a connection to the PPPoE account only when an internal user makes a request such as browsing to a Web page This field combined with Idle Time out is useful if your ISP charges are on a per usage time basis Idle Time out Number of minutes that the connection can remain idle unused before disconnecting Type 0 to keep the connection always on and to prevent the security gateway from disconnecting If the value is more than 0 check the Connect on Demand check box to reconnect automatically when needed When combined with Connect on Demand the connection to your ISP is only made when a client is using it Static IP Address If you received a static IP address for your PPPoE account from your ISP type it here Choose Service Query Services When you click Query Services the security gateway connects to your ISP and determines which services ar
83. Tunnels tab field descriptions m Client Users tab field descriptions m VPN Policies tab field descriptions m VPN Status tab field descriptions m Advanced tab field descriptions Dynamic Tunnels tab field descriptions The Dynamic Tunnels tab lets you configure dynamic Gateway to Gateway VPN tunnels Table C 27 Field descriptions 145 VPN field descriptions Dynamic Tunnels field descriptions IPSec Security Association VPN Tunnel Select a tunnel to update or delete Name Name of the tunnel The tunnel name can be up to 25 alphanumeric characters dashes and underscores This name used only for reference within the SGMI You can create up to 50 tunnels Enable VPN Tunnel Enables the tunnel you are defining so it can be used by remote VPN users To temporarily disable the tunnel uncheck this check box and click Update To permanently disable the tunnel click Delete Phase 1 Type Select a mode for phase 1 negotiation Options include m Main Mode Negotiates with a source IP address m Aggressive Mode Negotiates with an identifier such as a name Client VPN software typically negotiates in aggressive mode The default value is Main Mode VPN Policy Select a policy that dictates authentication encryption and timeout settings The list contains Symantec pre defined policies and any policies you created on the VPN Policies tab 146 Field descriptions VPN field descr
84. U for each port To specify MTU size See Advanced tab field descriptions on page 136 1 Inthe SGML in the left pane click WAN ISP 2 Inthe right pane on the Advanced tab under Optional Connection Settings in the WAN port text box type the MTU size 40 Configuring a connection to the outside network Configuring dynamic DNS 3 Click Save Note To reset the MTU size click Restore Defaults This also resets the echo request information and the DHCP Idle Renew settings to their default values Configuring dynamic DNS Symantec Gateway Security 400 Series can use a dynamic DNS service to map dynamic IP addresses to a domain name to which users can connect If you receive your IP address dynamically from your ISP dynamic DNS services let you use your own domain name mysite com for example or their domain name and your subdomain to connect to your services such as a VPN gateway Web site or FTP For example if you set up a virtual Web server and your ISP assigns you a different IP address each time you connect the server your users can always access www imysite com The appliances support two types of dynamic DNS services standard and TZO You can configure either service by specifying account information or you can disable dynamic DNS completely See the Symantec Gateway Security 400 Series Release Notes for the list of supported services When you create an account with TZO your ISP sends you the following
85. User list fields User Name User name entered for the static VPN user Enable Indicates whether a particular user can establish VPN tunnels to the security gateway Pre Shared Key Displays the pre shared key entered for the user VPN Group Lists the VPN Groups for which a user is configured Configuring gateway to gateway tunnels Gateway to gateway tunnels help secure your internal network by providing a secure bridge to an external LAN There are several tasks involved in successfully securing the network with gateway to gateway tunnels The following section describes the gateway to gateway tunnels and then provides procedures for configuring the tunnels Understanding gateway to gateway tunnels You might want to make your network resources available to an outside group such as another office of the company Instead of requiring each user on the second network to establish their own private secure connection you can create one gateway to gateway tunnel which makes resources on each network available to the other This type of tunnel is LAN to LAN instead of user to LAN The appliance supports gateway to gateway tunnel configurations A gateway to gateway configuration is created when two security gateways are connected through an internal network or the Internet from WAN port to WAN port Figure 6 1 Gateway to gateway VPN tunnel configuration 192 168 0 2 192 168 100 3 192 168 100 1 192 168 0 1 192 1
86. You can add edit or delete a static routing entry or view the list of existing entries See Routing tab field descriptions on page 134 To add a route entry 1 Inthe SGMI in the left pane click WAN ISP Configuring a connection to the outside network 43 Configuring advanced WAN ISP settings 2 On the Routing tab under Static Routes do the following Destination IP Type the IP address to which to send packets Netmask Type the net mask of the router to which to send packets Gateway Type the IP address of the interface to which packets are sent Interface Select the interface from which traffic is sent Metric Type a number to represent the order in which you want the entry evaluated For example to evaluate the entry third type 3 3 Click Add To edit a route entry 1 Inthe SGML in the left pane click WAN ISP 2 On the Routing tab under Static Routes in the Route Entry drop down list select a route entry 3 Under Static Routes change information in any of the fields 4 Click Update To delete a route entry 1 Inthe SGMI in the left pane click WAN ISP 2 On the Routing tab under Static Routes in the Route Entry drop down list select an entry 3 Click Delete To view the routing list table 1 Inthe SGMI in the left pane click WAN ISP 2 Onthe Routing tab scroll to the bottom of the page Configuring advanced WAN ISP settings You can set advanced connectivity settings such as a DNS gateway h
87. a Gateway to Gateway VPN tunnel See Trusted Certificates tab field descriptions on page 123 To change the LiveUpdate server location 1 Inthe SGML in the left pane click Administration 2 Inthe right pane on the LiveUpdate tab under General Settings in the LiveUpdate Server text box type the IP address or fully qualified domain name for your LiveUpdate server 3 Click Save 100 Logging monitoring and updates Updating firmware Upgrading firmware manually Firmware upgrades are available from Symantec s Web site If you do not configure LiveUpdate to automatically download and apply firmware upgrades or if you are instructed to manually perform an upgrade by Symantec Technical Support you should check the Symantec Web for the latest version of the firmware Your current firmware version number is available on the Status tab The firmware file that is available from Symantec Technical Support is called all bin It overwrites your configuration so before you begin a manual firmware upgrade make note of your configuration The only setting that it leaves intact is the administrator s password See Setting the administration password on page 18 Warning Re flashing the firmware with an old version of the firmware erases all previous configuration information including the password Apply the firmware by using the Symantec FTP utility included on the Symantec Gateway Security 400 Series CD ROM or you ca
88. ab field d scriptions ci3 2a steko E Res essen eel a R 134 Dynamic DNS tab field descriptions 0 cecececsesesesesesseeseseseseseesesesesesesecesesseecsesesesesnseeesseaeseeeseseeees 135 Routing tab field descriptions c cceecceseessssssesesssscssesesesessssssssesessseseseseseseseseeesesseseseseseaesesesseseseaes 136 Advanced tab field descriptions ara aert r Ar AAAA R E A ARNEE 138 Firewall field desctiptionS e a aa a N E ER RA 139 Computers tab field descriptions ccccccccescscsssscsesscscscescscsescsesscscseecsesscecsesscscseescsenecscseeecsenesees 139 Computer Groups tab field descriptions 00 0 ceccsssscsssscscsessesesscscseeecsesececsesscsesesecsesecsesesecseeeses 140 Inbound Rules field descriptions cceccccscscscsscsesssscsesecscsessescsesscsenscsesscecsesscecsesecsesecsesesecsesecseaeees 141 Outbound Rules tab field descriptions 2 0 cece csssscsessssescsecscseeecscsscscsesecscseescsesscscsesecscseeecseneeees 142 Services tab field descriptions s ccccccccsecssccsecteccssaticesdoeevesbeee nt E TER ANENE RRE 142 Special Applications tab field descriptions 0 cececcsssscsssscseseescsessesessescscsecscsesscscsecsesetecscsenecses 143 Advanced tab field descriptions enr Ea EaR EATEN EATE ii ta Ar AANA EEn 145 VPN field descriptions sernpe niora T O O R tee A n 146 Dynamic Tunnels tab field descriptions 0 cccecsssesesesesessesssssecesesesesesesseseseeescseseseseeesessessneeseaeees 147 Static Tunnels tab f
89. account under Local Security Gateway in the PPPoE Session drop down list select a PPPoE session to which you want to bind to the tunnel If you do not have a multi session PPPoE ISP account skip this step For models 460 and 460R on the Local Endpoint drop down list select the endpoint for the tunnel In the Incoming SPI text box type the incoming SPI to match the outgoing SPI of the remote SPI In the Outgoing SPI text box type the outgoing SPI to match the incoming SPI on the remote side On the VPN Policy drop down list select a VPN policy to which you want to bind to the tunnel Use an existing VPN policy or create a new one See Understanding VPN policies on page 66 In the Encryption Key text box type the encryption key to match the chosen VPN policy Entry length must match the chosen VPN policy In the Authentication Key text box type the authentication key to match the chosen VPN policy Under Remote Security Gateway in the Gateway Address text box type the gateway address to be the gateway address of the Symantec Enterprise VPN Next to NetBIOS Broadcast click Disable Next to Global Tunnel click Disable In the Remote Subnet IP text boxes type the IP address of the remote subnet to the destination network When defining a global tunnel to Symantec Enterprise Firewall or Symantec Gateway Security 5400 Series appliance for the remote gateway enter 0 0 0 0 for the remote subnet IP address For global tunnels
90. account manually at any time 36 Configuring a connection to the outside network Configuring connectivity You must use an external modem for dial up accounts You connect the modem both analog and ISDN to the appliance through the serial port on the back of the appliance Figure 3 5 shows the serial port on the rear panel of the models 420 and 440 appliances Figure 3 6 shows the serial port on the rear panel of the models 460 and 460R appliances Figure 3 5 Rear panel of Symantec Gateway Security models 420 and 440 appliances Serial port WIT Figure 3 6 Rear panel of Symantec Gateway Security models 460 and 460R appliances Serial port c o Ul U UU DO O O CO I fe Before configuring the appliance to use your dial up account as either the primary or backup connection gather the following information and equipment Account information User name which may be different from your account name and password for the dial up account Dial up numbers At least one and up to three telephone numbers for the dial up account Static IP address Some ISPs assign static IP addresses to their accounts or you may have purchased a static IP address Modem cables An external modem and a serial cable to connect the modem to the serial port on the back of the appliance Modem You may need to consult your modem s documentation for modem command or model documentation information To configure di
91. accounts 37 manually connect to PPTP account 35 upgrading firmware 100 manually reset password 19 Maximum Transmission Unit MTU 39 menu tabs 17 modem connectivity 36 monitoring antivirus server status 85 DHCP usage 51 dial up accounts 38 monitoring VPN tunnel status 80 NAT mode 62 Nestea 89 network access planning 53 network connections 29 network security best practices 13 network settings optional 46 network traffic control 53 network traffic controladvanced 81 Newtear 89 184 Index Norton Internet Security 100 0 online help 16 optional network settings 46 outbound rules 57 Outbound Rules tab 58 140 outside network configuring connection 23 Overdrop 89 P password administration 18 configure 19 manually reset 19 PING 36 Ping of Death 89 planning network access 53 Point to Point Protocol over Ethernet See PPPoE Point to Point Tunneling Protocol PPTP 34 policy Global IKE 66 Port assignments 51 Port Assignments tab 51 127 PPP settings advanced 39 PPPoE connecting manually 32 connectivity 29 defined 30 Query Services 130 verifying connectivity 32 PPPoE tab 32 129 PPTP configuring for connectivity 34 connecting manually 35 manual connection 35 TCP IP based network 34 verifying connectivity 34 PPTP connection 29 PPTP tab 34 35 132 preventing attacks 89 protection IP spoofing 91 TCP flag validation 91 protection preferences configuring protection preferences settings 90 settings 90 Q
92. age 130 1 Inthe SGMI in the left pane click WAN ISP 2 On the Dial up Backup amp Analog ISDN tab scroll to Analog Status 3 Torefresh the dial up account status on the Dial up Backup amp Analog ISDN tab under Modem Settings click Refresh Configuring advanced connection settings Advanced connection settings let you control your connectivity parameters more closely If you have a DHCP connection you can configure the renew settings For PPPoE accounts you can configure echo requests For all connection types you can specify packet size by setting the Maximum Transfer Unit MTU Advanced DHCP settings If you selected DHCP as your connection type you can instruct the appliance to send a renew request which tells the ISP to allocate a new IP address to the appliance Configuring a connection to the outside network 39 Configuring advanced connection settings You can tell the appliance at any time to request a new IP address by forcing a DHCP renew However you should only do this if requested by Symantec Technical Support To configure advanced DHCP settings You can configure the idle renew time and manually force a DHCP renew request See Advanced tab field descriptions on page 136 To configure idle renew time 1 Inthe SGML in the left pane click WAN ISP 2 On the Advanced tab under Optional Connection settings in the Idle Renew DHCP text box type the number of minutes after which a renew lease request
93. agement in the SGMI You should configure the IP addresses for remote management when you first connect to the SGMI Remote management traffic is packaged and sent using the MD5 hash algorithm for security Note For security reasons you should perform all remote management through a VPN tunnel This provides an appropriate level of security and confidentiality for your management session See Establishing secure VPN connections on page 65 20 Administering the security gateway Managing administrative access Figure 2 2 shows a remote management configuration Figure 2 2 Remote management Symantec Gateway Security 400 Series appliance 192 168 0 2 192 168 0 3 Protected devices To configure remote management specify both a start and end IP address To remotely manage from only one IP address type it as both the start and end IP address The start IP address is the lower number in the range of IP addresses and the end IP address is the higher number in the range of IP addresses Leave these fields blank to deny remote access to the SGMI To configure remote management See Basic Management tab field descriptions on page 121 1 2 In the SGMI in the left pane click Administration In the right pane on the Basic Management tab under Remote Management in the Start IP Address text boxes type the first IP Address lowest in the range In the End IP Address text boxes type the last IP Address high
94. al console aA uu A W Ne On the rear of the appliance connect the null modem cable to the serial port Connect the null modem cable to your computer s COM port On the rear of the appliance turn DIP switch 3 to the on position up On your keyboard ensure that the Scroll Lock is not on Run a terminal program such as HyperTerminal In the terminal program set the program to connect directly to the COM port on your computer to which the appliance is physically connected Set the communication settings as follows Baud Bits per second 9600 Data bits 8 Parity None Stop bits 1 Flow control None Connect to the appliance SGS5400 HyperTerminal s ioj xi File Edit View Call Transfer Help Dle a3 ala Setup for Symantec Gateway Security 460 ver 1 0 0 Build 143 Local IP Address 192 168 0 1 Local Network Mask 299 299 299 0 DHCP Server 1 Enable 2 Disable Enable Start IP Address 192 168 0 2 Finish IP Address 192 168 0 51 Restore to Defaults Save Select Connected 0 00 31 Auto detect 9600 8 N 1 SCROLL 22 Administering the security gateway Managing the security gateway using the serial console 9 After the terminal session has been established on the rear panel of the appliance quickly press the reset button 10 Atthe Select prompt do one of the following Local IP Address Type 1 to change the IP address of the appliance Local Network Mask Type 2 to change th
95. al management temporarily 165 Symantec Gateway Security 5400 Series 71 72 Symantec management console 11 Syndrop 89 Syslog 94 System Setup Wizard 160 T T1 29 TCP flag validation 91 TCP IP based network PPTP 34 TCP UDP flood protection 90 Teardrop 90 technical support 109 testing connectivity 45 TFTP 20 100 time outs SMTP 62 traffic flow inbound access 56 outbound access 57 Trojan horse protection 90 Troubleshooting 107 Troubleshooting tab 121 trusted certificates 160 Trusted Certificates tab 123 tunnel compression 66 tunnel configurations VPN gateway to gateway 70 tunnel negotiations Phase 1 67 Phase 2 67 tunnels client to gateway 76 dynamic gateway to gateway 72 TZO 40 U understanding connection types 29 updating firmware 97 upgrading firmware Norton Internet Security 100 V verifying PPPoE connectivity 32 video conferencing 60 View Log tab 96 119 VPN authentication key lengths 74 configuring client to gateway tunnels 76 creating custom phase 2 policies 67 creating tunnels to Symantec Gateway Security 5400 Series clusters 72 encryption key lengths 74 global policy settings 79 monitoring tunnel status 80 overview 10 phase 2 configurable 67 Index 185 policies 66 secure connections 65 subnet 71 supported gateway to gateway tunnels 71 tunnel compression 66 tunnel configurations 70 client to gateway 76 gateway to gateway 70 tunnel high availability 71 tunnel negotiations Phase
96. al up accounts First you must connect the modem to the appliance Then you use the SGMI to configure the dial up account Note If your ISP gateway blocks ICMP requests such as PING on the Main Setup tab if you leave the Alive Indicator Site IP or URL text box blank the appliance PINGs the default gateway to determine connectivity See Dial up Backup amp Analog ISDN tab field descriptions on page 130 To connect your modem 1 Plug one end of the serial cable into your modem 2 Plug one end of the serial cable into the serial port on the back of the appliance 3 If it requires external power plug the modem into a wall socket 4 Turn on the modem To configure your primary dial up account 1 Inthe SGMI in the left pane click WAN ISP 6 Configuring a connection to the outside network 37 Configuring connectivity In the right pane on the Main Setup tab under Connection Type click Analog ISDN Click Save On the Dial up Backup amp Analog ISDN tab under ISP Account Information do the following User Name Type the account user name Password Type the account password Verify Password Retype the account password Dial up Telephone 1 Type the dial up telephone number Dial up Telephone 2 Optionally type a backup dial up telephone number Dial up Telephone 3 Optionally type a backup dial up telephone number Under Modem Settings do the following Model Select the model of your modem Line Speed Se
97. am that uses the Hypertext Transfer Protocol HTTP to make requests of Web servers throughout the Internet on behalf of the browser user A denial of service attack that specifically targets a Web server wildcard character wizard workstation worm WWW World Wide Web Glossary A symbol that enables multiple matching values to be returned based on a shared feature The script language has two wildcards the question mark and the asterisk The question mark stands for any single character and the asterisk stands for any character string of any length For example the file specification would return all files regardless of their file names the file specification sc would return all file names that have a three character extension beginning with sc such as compusrv scr compusrv scx and so on A tool that makes configuration tasks faster and easier The wizard prompts the user by requesting data and walking the user through the specific set procedure From the first Wizard screen users have the option of closing the Wizard and working from the appropriate Property Pages 1 Anetworked computer that is using server resources 2 A computer that is connected to a mainframe computer It is usually a personal computer connected to a local area network LAN that shares the resources of one or more large computers Workstations differ from terminals or dumb terminals in that they can be used independently from the mainfra
98. ame or password The RADIUS server authenticates the user and returns the RADIUS group of the user to the security gateway The security gateway checks that the group matches one of the client tunnels and that the group is allowed to connect to the WAN LAN or WLAN If so the user s tunnel is established Defining users Establishing secure VPN connections 69 Identifying users Ensure that you obtain all pertinent authentication information from your RADIUS administrator to pass on to your users with extended authentication To define users Users must be defined on the appliance and may also use extended authentication Dynamic users must use extended authentication and are not defined on the appliance To configure users See Client Users tab field descriptions on page 150 1 2 VN OA wo A U In the SGMI in the left pane click VPN In the right pane on the Client Users tab under VPN User Identity in the User Name text box type the name of a new user To edit an existing user in the User drop down list select a user Check Enable In the Pre shared Key text box type the pre shared key From the VPN Group drop down list select a VPN group for the user to join Click Add To configure users with extended authentication See Advanced tab field descriptions on page 153 1 2 In the SGMI in the left pane click VPN On the Advanced tab in the Dynamic VPN Client Settings section do the follow
99. anent connection to the Internet Dial Type The type of signal your modem uses to dial the dial up telephone number The options include m pulse m tone m other Dial String Modem command to begin dialing the dial up telephone number Idle Time out Number of minutes that the connection may remain idle unused before disconnecting Redial String Modem command that specifies to redial the dial up telephone number if the initial connection fails Manual Control Dial Opens a connection to the dial up account Hang Up Closes an open connection to the dial up account 132 Field descriptions WAN ISP field descriptions Table C 15 Dial up or ISDN tab field descriptions Continued Analog Status Port Status Describes the status of the serial port on the security gateway where the modem is connected Possible port status values include m Idle m Dialing m Internet Access m Hanging Up Physical Link Indicates whether the modem is connected to the phone number Possible physical link status values include m Off m On PPP Link Possible PPP link status values include m User Authenticated via PPP User name password was correct m Off m On PPP IP Address IP address that is assigned to your account when you connect If you have a static IP address it is the same each time If the ISP assigns IP addresses dynamically the IP address may be different each time a connection is esta
100. anually 37 monitoring status 38 verifying connectivity 38 Dial up Backup amp Analog ISDN tab 36 130 Digital Service Unit DSU 29 disabling dynamic DNS 41 NAT mode 62 disconnect idle PPPoE connections 30 DNS gateway 45 documentation 12 online help 16 17 DSL 29 DSL connectivity 29 dual WAN port 28 dynamic DNS disabling 41 forcing updates 41 TZO 40 Dynamic DNS tab 40 41 133 dynamic gateway to gateway tunnels 72 dynamic routing 42 Dynamic Tunnels tab 73 145 E Email Log Now 93 emailing log messages 93 enabling IDENT port 62 IPsec pass thru 63 exposed host 64 F failover 45 Fawx 89 Firewall settings 17 Advanced 62 64 143 Computer Groups 56 84 88 138 Computers 54 137 Inbound Rules 56 139 Outbound Rules 58 140 Services 60 140 Special Applications 61 141 firewall technology 10 firewall Host List 55 firmware 97 98 100 app bin 97 updates 97 upgrading manually 100 firmware upgrades 20 flash the firmware 101 flashing the appliance 18 101 Force Renew 136 forcing dynamic DNS updates 41 front panel LEDs 105 G games 60 gateway to gateway supported VPN tunnels 71 gateway to gateway tunnels 70 dynamic tunnels 72 tunnel persistence and high availability 71 Global IKE Policy 66 global policy settings client to gateway tunnels 79 H HA See high availability help 16 Help button 17 high availability 43 Host List 55 HTML buffer overflow 90 ICMP requests 36 IDENT port 62 idle re
101. apable of delivering such weapons 7 General If You are located in North America or Latin America this Agreement will be governed by the laws of the State of California United States of America Otherwise this Agreement will be governed by the laws of England This Agreement and any related License Module is the entire agreement between You and Symantec relating to the Appliance and i supersedes all prior or contemporaneous oral or written communications proposals and representations with respect to its subject matter and ii prevails over any conflicting or additional terms of any quote order acknowledgment or similar communications between the parties This Agreement may only be modified by a License Module or by a written document which has been signed by both You and Symantec This Agreement shall terminate upon Your breach of any term contained herein and You shall cease use of and destroy all copies of the Software and shall return the Appliance to Symantec The disclaimers of warranties and damages and limitations on liability shall survive termination Should You have any questions concerning this Agreement or if You desire to contact Symantec for any reason please write i Symantec Customer Service 555 International Way Springfield OR 97477 USA or ii Symantec Customer Service Center PO BOX 5689 Dublin 15 Ireland SYMANTEC GATEWAY SECURITY APPLIANCE 300 400 SERIES CLIENT TO GATEWAY VPN ADDITIVE LICENSE AND 8 0 MEDIA K
102. ardware assisted 3DES and AES encryption m Antivirus policy enforcement AVpe m Static content filtering m Intrusion detection and intrusion prevention m LiveUpdate support Key features All features are designed specifically for the small office environment These appliances are perfect for stand alone environments or as a complement to Symantec Gateway Security 5400 Series appliances deployed at hub sites All of the Symantec Gateway Security 300 400 Series models are wireless capable They have special wireless firmware and a CardBus slot that accommodates an optional wireless feature add on that consists of an integrated 802 11b g radio card and antenna When used with the appliance s VPN feature the security gateway offers the highest possible integrated security for wireless LANs LiveUpdate of firmware strengthens the Symantec Gateway Security 400 Series security response making it an ideal solution for remote or small branch offices 10 Introducing the Symantec Gateway Security 400 Series Key features Firewall technology The Symantec Gateway Security 400 Series appliance protects enterprise assets and business transactions with one of the most secure high performance solutions for ensuring safe connections with the Internet and between networks Its unique architecture delivers security and speed providing strong and transparent firewall protection against unwanted intrusion without slowing the flow of approved traffic
103. asis for information exchange on the Internet HTTP is an application protocol A variation of HTTP that is enhanced by a security mechanism which is usually Secure Sockets Layer SSL A key management protocol standard that is used in conjunction with the IPSec standard IPSec is an IP security feature that provides robust authentication and encryption of IP packets IPSec can be configured without IKE but IKE enhances IPSec by providing additional features flexibility and ease of configuration for the IPSec standard IKE is a hybrid protocol that implements the Oakley key exchange and Skeme key exchange inside of the Internet Security Association and Key Management Protocol ISAKMP framework ISAKMP Oakley and Skeme are security protocols implemented by IKE See also IPSec inbound rule initialize integrating product Internet intranet intrusion detection intrusion protection IP Internet Protocol IP address IP spoofing IPSec Internet Protocol Security ISDN Integrated Services Digital Network ISP Internet service provider key LAN local area network leased line local attack log logging Glossary 171 A defined security gateway rule that allows or denies inbound traffic all inbound traffic is blocked by default Inbound rules are configured to match specific protocols or services like FTP or Web and you can apply them to different computer groups For example use an inbound t
104. ata can include messages files folders or disks A local area network LAN protocol developed by Xerox Corporation in cooperation with DEC and Intel in 1976 Ethernet uses a bus or star topology and supports data transfer rates of 100 Mbps A message that is generated by a product to indicate that something has happened A predefined event category that is used for sorting reports and configuring alerts An application that collects events from security products processes them and places them in the SESA DataStore The process by which an administrator forwards events to another SESA Manager Event forwarding includes the ability to filter events selectively before forwarding 170 Glossary event logging exposed host file transfer filter firewall firewall denial of service firmware flash flooding program FQDN fully qualified domain name FTP File Transfer Protocol gateway global tunnel HTML Hypertext Markup Language HTTP Hypertext Transfer Protocol HTTPS Hypertext Transfer Protocol Secure IKE Internet Key Exchange The process by which SESA Agents collect product events and deliver them to the SESA Manager for insertion into the SESA DataStore A method of making all ports on a LAN side host available to the external WAN side network So for example if you are running multiple services Telnet Web FTP and so on on an exposed host these are accessible from the external W
105. ateway tunnels on page 70 See Configuring static gateway to gateway tunnels on page 73 Gateway to gateway VPN tunnel persistence and high availability After the security gateway restarts dynamic gateway to gateway VPN tunnels are re established Dynamic gateway to gateway VPN tunnels are also re established if the WAN port status changes from disconnected to connected This feature reduces management overhead by providing automatic reconnection of tunnels If the VPN tunnel fails to establish after two attempts the security gateway waits between one and five minutes before attempting to reconnect This process continues until the VPN tunnel is re established If there is a network failure the security gateway automatically re establishes the VPN tunnel through a backup port WAN port or serial port If the IP address of the security gateway changes it re establishes gateway to gateway VPN tunnels with the remote gateway using the new IP address Gateway to gateway VPN tunnel interoperability When Symantec Gateway Security 5400 Series or Symantec Enterprise Firewall initiates a gateway to gateway tunnel to a Symantec Gateway Security 400 Series appliance it begins negotiation in Main Mode 72 Establishing secure VPN connections Configuring gateway to gateway tunnels The Symantec Gateway Security 400 Series VPN tunnel definition must be Main Mode default or the VPN tunnel will not be established While the Symantec Gat
106. ay tunnels on page 70 and Configuring client to gateway VPN tunnels on page 76 there are worksheets for you to fill out with the information you entered so that you may easily share connection information with your clients and remote gateway administrators Establishing secure VPN connections Creating security policies Creating security policies VPN tunnel negotiation occurs in two phases In Phase 1 the Internet Key Exchange IKE negotiation creates an IKE security association with its peer to protect Phase 2 of the negotiation which determines the protocol security association for the tunnel For gateway to gateway connections either security gateway can initiate Phase 1 or Phase 2 renegotiation at any time Either security gateway can also specify intervals after which to renegotiate For client to gateway connections only the client can initiate Phase 1 or Phase 2 renegotiation Phase 2 renegotiation is referred to as quick mode renegotiation Note Symantec Gateway Security 400 Series does not support VPN tunnel compression To create a gateway to gateway tunnel between a Symantec Gateway Security 400 Series appliance and a remote Symantec Gateway Security 5400 Series appliance or Symantec Enterprise Firewall set the compression to NONE on the remote gateway Understanding VPN policies For each phase of negotiation the appliance uses a policy which is a predefined set of parameters The appliance supports two typ
107. ber of Licensee s client machines provided however that Licensee s use of the Software on such client machines is restricted by the total number of concurrent sessions legally licensed hereunder or pursuant to any License Module as applicable for the Appliance bearing the serial number set forth on the face of this Certificate An auditor selected by Symantec and reasonably acceptable to Licensee may upon reasonable notice and during normal business hours but not more often than once each year inspect Licensee s records in order to confirm the legal use of the Software Symantec shall bear the costs of any such audit 3 INTEGRATION This Certificate and the EULA constitute the entire agreement between the parties pertaining to the subject matter hereof and supersede any and all written or oral agreements with respect to such subject matter hereof and supersede any and all written or oral agreements with respect to such subject matter 116 Licensing SYMANTEC GATEWAY SECURITY APPLIANCE 300 400 SERIES CLIENT TO GATEWAY VPN ADDITIVE LICENSE AND 8 0 MEDIA KIT Appendix Field descriptions This chapter includes the following topics m Logging Monitoring field descriptions m Administration field descriptions m LAN field descriptions m WAN ISP field descriptions m Firewall field descriptions m VPN field descriptions m IDS IPS field descriptions m Antivirus Policy field descriptions m Content Filtering field descriptions
108. ble 9 4 describes the sequences Table 9 4 LiveUpdate LED sequences Firmware retrieval from the Internet using On On Flashing when there is traffic LiveUpdate or uploading it using the symcftpw or TFTP tools Firmware downloaded and verified This takes On off off approximately 10 seconds Applying the firmware The amount of time this On Flashing Flashing alternately with takes depends on the model alternately with Error Transmit Update complete On On On Appliance resets all LEDs illuminate and then On off Flashing when there is traffic go to the normal operation pattern Appendix Troubleshooting This chapter includes the following topics m About troubleshooting m Accessing troubleshooting information About troubleshooting The Debug information feature provides a high level of detail of the system events information in the log Debug mode gives more detailed information in the status log that is useful for Symantec Technical Support or for troubleshooting The default user mode provides general information about actions taken defined by the security policy Warning Enabling debug mode increases the number of log events and impacts performance By design all debug messages are in English only Only use debug mode temporarily for troubleshooting purposes and disable it immediately after debugging The Forward WAN packets to LAN feature broadcasts all WAN side packets into t
109. blished Possible PPP IP address values include 0 0 0 0 m IP from ISP where IP from ISP is the IP address dynamically allocated to you when you connect Phone Line Speed Speed at which the modem is connected to the ISP Possible phone line speeds include m Unknown E HHH where is a number representing the phone speed For example 48800 PPTP tab field descriptions The PPTP tab lets you configure the security gateway to connect to the Internet with an account that uses PPTP for authentication Table C 16 PPTP tab field descriptions WAN Port WAN Port WAN port for which you are configuring PPTP Dual WAN port Dual WAN port models models Table C 16 Field descriptions 133 WAN ISP field descriptions PPTP tab field descriptions Continued Connection Connect on Demand When enabled a connection is established only when a request is made such as when a user browses to a Web page Idle Time out Number of minutes that the connection can remain idle unused before disconnecting Type 0 to keep the connection always on and to prevent the security gateway from disconnecting For values greater than 0 check Connect on Demand to reconnect automatically when needed Server IP Address IP address of the PPTP server The default value for the first octet is 10 The default value for the last octet is 138 Static IP Address Use this field only for static PPTP a
110. both URLs in the list For example www disney com redirects users to www disney go com To let your users view this Web site you must specify both www disney com and www disney go com in the allow list If a site brings in content from other sites you must add both URLs to the list For example www cnn com uses content from www cnn net Managing content filtering lists When you create allow and deny lists you provide the allowed or denied fully qualified domain names The appliance filters traffic by checking DNS lookup requests There must be an exact match on the destination for action blocking or warning to occur For wild card functionality specify only the domain name in the allow or deny list for specific sites For example to allow traffic to any Symantec site add symantec com to the allow list This allows traffic to liveupdate symantec com www symantec com fileshare symantec com and so on Content filtering applies to all outbound traffic not just HTTP Web traffic To manage allow and deny lists By default the allow and deny lists are empty Each filtering list can hold up to 100 entries Each entry can be up to 128 characters long See Content Filtering field descriptions on page 157 To add a URL to an allow or deny list 1 Inthe SGML in the left pane click Content Filtering 2 Under Select List next to List Type select Allow or Deny 3 Inthe Input URL text box type the name of a site that you want to
111. ccounts Type the static IP address for your account if you purchased one from or are assigned one by your ISP User Information User Name User name for your PPTP account Password Password for your PPTP account Verify Password Retype the password for your PPTP account Manual Control Connect Opens a connection to your PPTP account Disconnect Closes an open connection to your PPTP account Dynamic DNS tab field descriptions Dynamic DNS services let you use your own domain name mysite com for example or another domain name and your subdomain to connect to your services such as a VPN gateway Web site or FTP For example if you set up a virtual Web server and your ISP assigns you a different IP address each time you connect your users can always access www mysite com Table C 17 Dynamic DNS tab field descriptions Service Type Dynamic DNS Service Service through which you get your dynamic DNS service Options include TZO A dynamic DNS service m Standard There are many standard dynamic DNS services See the Symantec Gateway Security 300 400 Series Release Notes for the list of supported services m Disable The security gateway does not use dynamic DNS WAN Port Dual WAN port models WAN port on which you want to configure dynamic DNS Force DNS Update Clicking Update sends updated IP information to the dynamic DNS service Select this field only if request
112. ced Management tab under Centralized Management click Centralized Monitoring and Policy Management Under Symantec Enterprise Security Architecture SESA Registration do the following Query SESA Click this button to populate the Organizational Unit drop down list Management Server Type the IP address or the fully qualified domain name of the SESA server Administrator Type the SESA administrator logon name Password Type the SESA administrator logon password 4 Joining security gateways to SESA 163 Joining Symantec Gateway Security 400 Series to SESA Organizational Unit To join SESA as a member of a specific organizational unit select the org unit from the Organizational Unit drop down menu You must click Query SESA first to populate this drop down list Click Join SESA To join the security gateway to SESA for event management only 1 2 In the SGMI in the left pane click Administration In the right pane on the Advanced Management tab under Centralized management click Centralized Monitoring Alerting Logging and Reporting Under Symantec Enterprise Security Architecture SESA Registration do the following Management Server Type the IP address or the fully qualified domain name of the SESA server Administrator Type the SESA administrator logon name Password Type the SESA administrator logon password Click Join SESA Viewing SESA Agent status At the bottom of the Advanced Management tab you can
113. ch of which results in still more responses This filter triggers when 63 of the WAN buffers are taken up by broadcast packets You may want to disable this feature to allow applications that require broadcast packets To enable WAN broadcast storm protection See Advanced tab field descriptions on page 143 1 Inthe SGMI in the left pane click Firewall 2 Inthe right pane on the Advanced tab under Optional Security Settings next to WAN Broadcast Storm Protection check Enable 3 Click Save Enabling IPsec pass thru IPSec pass thru is supported by the security gateway If the VPN client used in Exposed Host has problems connecting from behind the security gateway use the None setting The following list includes the supported IPsec types m 1SPI ADI Assured Digital m 2 SPI default Standard Symantec Cisco Pix and Nortel Contivity clients m 2SPI C Cisco Concentrator 30X0 Series clients m Others Redcreek Ravlin m None Note Only change the IPsec pass thru setting if instructed to do so by Symantec Technical Support 64 Network traffic control Configuring advanced options To configure IPsec pass thru settings See Advanced tab field descriptions on page 143 1 2 In the SGMI in the left pane click Firewall On the Advanced tab under IPsec Passthru Settings select the IPsec types that you want to allow through the security gateway Click Save Configuring an exposed ho
114. ch the security gateway assigned an IP address IP Address IP address from the indicated range that the security gateway assigned to the computer Physical Address Physical MAC address of the network interface card NIC in the computer that was assigned an IP address Status Status of the DHCP lease on the IP address that was assigned to the computer The options are m Leased m Reserved Port Assignments tab field descriptions Field descriptions 127 WAN ISP field descriptions Port assignments let you specify if the LAN port resides on a trusted or untrusted virtual LAN VLAN The trusted VLAN is for wired connections and the non trusted is for wireless connections Table C 11 Port Assignment tab field descriptions Physical LAN Ports Port 1 Port 2 Port 3 Port 4 Single WAN port models Port 1 Port 2 Port 3 Port 4 Port 5 Port 6 Port 7 Port 8 Dual WAN port models Assigns ports on the switch function of the security gateway as trusted or untrusted This enables wireless and wired LAN based VPN security through the port based virtual network capabilities of the switch function on the security gateway in addition to support for LAN side global tunnels directly to the wireless interface The tunnel endpoint will be at the main gateway for each LAN network subnet Options include m Standard Use this assignment for all wired LAN devices All traffic is implicitly trusted and allowed to
115. connectivity use the Preferred Time feature to schedule updates during off hours The LiveUpdate functionality provides a fail safe mechanism for firmware updates if the appliance becomes non usable such as a power outage during the LiveUpdate upload If the appliance is unable to pass its self check test with a new LiveUpdate package it reverts to the factory firmware stored in protected memory LiveUpdate only downloads and applies non destructive firmware 98 Logging monitoring and updates Updating firmware Scheduling automatic updates LiveUpdate runs in automatic or manual mode In automatic mode the appliance checks for new updates If you schedule automatic updates each time the appliance is restarted LiveUpdate checks for updates Also if you change the appliance from manual updates to automatic LiveUpdate checks for updates at the next time you specify in the UTC text box If LiveUpdate downloads and applies a new firmware update the appliance may restart For this reason you should schedule automatic updates to occur during your network s down time To schedule LiveUpdate for automatic updates See Trusted Certificates tab field descriptions on page 123 1 Inthe SGMI in the left pane click Administration 2 Inthe right pane on the LiveUpdate tab under Automatic Updates check Enable Scheduler 3 From the Frequency drop down list select the frequency with which the appliance checks for updates 4 In th
116. count User Name User name for the dial up account Information Password Password for the dial up account Verify Password Retype the password for the dial up account IP Address If you have a static IP address with your ISP type it here otherwise the ISP dynamically assigns you an IP address Dial up Telephone 1 Telephone number for the security gateway to dial to connect to the Dial up Telephone 2 dial up account You must specify at least one and up to three dial Dial up Telephone 3 up numbers If Dial up Telephone 1 fails to connect the security gateway then dials Dial up Telephone 2 and so on If the security gateway must dial a 9 to get an outside line type 9 and then a comma before the telephone number For example 9 18005551212 This text box allows numbers commas and spaces Modem Settings Model Model type of your modem If your specific model type is not listed click Other Initialization String Modem command that the security gateway sends to the modem to begin dialing the ISP Specify this value only if you select Other as the modem model Line Speed The speed at which you want the modem to connect to the dial up account If the security gateway is having trouble connecting lower the line speed Line Type The type of line for your account m Dial Up Line This line type is typically used if a connection to the Internet is not connected all the time m Leased line This line type provides a perm
117. ct text boxes blank 7 Inthe Redirect to Port s End text box type a port number 8 Click Add To update an existing service 1 Inthe SGMI in the left pane click Firewall 2 Inthe right pane on the Services tab on the Application drop down list select an existing service 3 Make the changes to the services fields 4 Click Update To delete a service 1 Inthe SGMI in the left pane click Firewall 2 Inthe right pane on the Services tab on the Application drop down list select an existing service 3 Click Delete Configuring special applications Special applications are used for dynamic port forwarding To determine what ports and protocols an application needs for operation consult the application s documentation for information on firewall or Network Address Translation NAT usage Some applications may need more than one entry defined and enabled for example when they have multiple port ranges in use Special applications are global in scope and overwrite any computer group specific outbound rules or inbound rules When enabled the traffic specified can pass in either direction from any host Certain applications with two way communication such as games and video conferencing need ports open in the firewall Normally you open ports with the Inbound Rules tab But inbound rules only open ports for the application server IP address defined in its settings because firewalls using NAT can only open a defined service f
118. ctets 192 0 0 through 223 255 255 Each class C network can have one octet worth of hosts Note You can place the appliance in any class network but the DHCP server does not support this If you have a mix of clients that use DHCP and static IP addresses the static IP addresses must be outside of the range of DHCP IP addresses Also you may want to assign static IP addresses to some services For example if you have a Web server on your site you want to assign it a static IP address The DHCP server in the appliance is enabled by default If you disable the DHCP server each client connecting to the LAN must be assigned an IP address that is within the range If you enable roaming on the appliance as a secondary wireless access point the DHCP server is disabled To configure the appliance as a DHCP server See LAN IP amp DHCP tab field descriptions on page 125 1 Inthe SGML in the left pane click LAN 2 Inthe right pane on the LAN IP amp DHCP tab under DHCP do one of the following m To enable the appliance as a DHCP server check Enable m To disable the appliance as a DHCP server check Disable 3 Inthe Range Start IP text boxes type the first IP address 4 Inthe End IP text boxes type the last IP address 5 Click Save Configuring internal connections 51 Configuring port assignments Monitoring DHCP usage The DHCP Table lists the IP addresses that are assigned to connected clients You can view the host
119. d intrusion attempts and dropped The Symantec Gateway Security 400 Series has signatures for and can detect the following types of intrusions m Bonk m Fawx m Jolt m Land m Nestea m Newtear m Overdrop m Ping of Death m Syndrop 90 Preventing attacks Setting protection preferences m Teardrop m Winnuke m HTML buffer overflow m TCP UDP flood protection Trojan horse notification Any attempt to connect to a blocked port that is commonly used by Trojan horse programs is logged and classified as a possible attack The log message warns the user that an illegal connection attempt was made and that they should audit their internal systems to verify they are not compromised Trojan horse protection is overridden if traffic is explicitly allowed in an inbound rule Connections to the ports listed in Table 8 1 generate warnings in the log file unless you specifically have a rule configured to allow inbound traffic on that port Table 8 1 Trojan horse ports and protocols KE Back Orifice TCP 31337 UDP 31337 Girlfriend TCP 21554 Portal of Doom TCP 3700 9872 9873 9874 9875 10067 10167 UDP 10067 10167 SubSeven TCP 1243 6711 6712 6713 6766 27374 27573 UDP 27573 Setting protection preferences For each atomic IDS and IPS signature you can set the action to take with detection of each individual signature as follows m Block and Warn Drop and log packets identified as containing
120. d on have Advanced network traffic control 83 Configuring AVpe an active Symantec antivirus client and have a connection to the Internet where it can download virus definition updates If your network topology includes a configuration in which client workstations are located behind an enclave firewall and if the firewall performs address transforms which changes the client s actual IP address the security gateway is unable to communicate with the client as is required to validate client virus definitions In this configuration the security gateway contacts the firewall not the client Ensure that traffic is not being blocked by a personal firewall You must allow UDP Port 2967 on all personal firewalls This is set by default in Symantec Client VPN version 8 0 Configuring AVpe Configuring AVpe for a Symantec AntiVirus Corporate Edition environment and a client only network is similar Configuring for Symantec AntiVirus Corporate Edition servers involves the following tasks Defining the location of the primary and optionally a secondary Symantec AntiVirus server and verifying that a client has the Symantec AntiVirus Corporate Edition client installed and that the virus definitions and the scanning engine on client computers are up to date See Configuring AVpe on page 83 Enabling AVpe for Computer or VPN Groups See Enabling AVpe on page 84 Configuring for networks with unmanaged antivirus clients withou
121. date site The internal LiveUpdate servers shown in Figure 9 1 are configured using the Symantec LiveUpdate Administration Utility Rather than the appliance contacting the Symantec servers to obtain product updates the appliance can contact the LiveUpdate server on the local network This greatly reduces network traffic and increases transfer speeds It also lets you stage manage and validate updates before applying them The LiveUpdate Administration Utility and instructions for installation are available on the Symantec Technical Support Web page http www symantec com techsupp Logging monitoring and updates 99 Updating firmware Table 9 1 shows and lists the LiveUpdate server configurations shown in Figure 9 1 Figure 9 1 LiveUpdate configurations Symantec LiveUpdate server Symantec Gateway Security 5400 Series VPN tunnel Internal Symantec Gateway LiveUpdate Security 400 Series server Internal SGMI LiveUpdate server Protected devices Table 9 1 LiveUpdate server configurations 1 Symantec LiveUpdate server http liveupdate symantec com This is the standard Symantec corporate LiveUpdate site which broadcasts firmware availability It is the default configuration in your appliance 2 Internal Live Update server at a remote internal location protected by a VPN tunnel 3 Internal LiveUpdate server at a local location LiveUpdate servers can be on the WAN or LAN or accessible through
122. ddress or fully qualified domain name m SESA logon name m SESA password Determining your options for joining SESA For Symantec Gateway Security 400 Series appliances there are two options for joining a security gateway to SESA The option that you use depends on the selection you make from the Centralized Management area of the Advanced Management tab in the SGMI Table D 1 Options for joining SESA Centralized Monitoring and Use default organizational When you join a security gateway to SESA this option Policy Management unit configuration automatically associates the default organizational unit with the security gateway Use selected This option lets you select an organizational unit and organizational unit import the configuration that is associated with it to the configuration local security gateway This overwrites parts of the configuration on the local security gateway To use this option your network resources must be parallel to those defined in the configuration you will import 162 Joining security gateways to SESA Joining Symantec Gateway Security 400 Series to SESA Joining SESA Table D 1 Options for joining SESA Continued Centralized Monitoring Not applicable This option lets you join security gateways to SESA for Alerting Logging and When you join SESA for event management Reporting event management only You use the Symantec Management Console to view the you cannot configure
123. define the types of traffic that can leave your network to access other networks or the Internet Table C 23 Outbound Rules tab field descriptions Computer Groups Computer Group Select a group to edit or add rules for the group Outbound Rules Rule Select an outbound rule to update or delete Rule Name Name of the outbound rule Enable Rule Check to enable the outbound rule Service The service that the outbound rule governs Outbound Rules List Enabled Displays Y or N Yes or No Indicates whether the outbound rule is enabled for use Name Name of the outbound rule Service The service that the outbound rule governs Services tab field descriptions Define the services to be used in the outbound and inbound firewall rules on the Services tab Table C 24 Services tab field descriptions Services Application Select an application for services to edit or delete Supported applications include DNS FTP HTTP HTTPS Mail SMTP Mail POP3 RADIUS Auth Telnet VPN IPSec VPN PPTP LiveUpdate SESA Server SESA Agent Real Audio PCA TCP PCA UDP TFTP SNMP Field descriptions 141 Firewall field descriptions Table C 24 Services tab field descriptions Continued Application Settings Name Name of the service you are creating Protocol Select the protocol associated with the service Options include m TCP m UDP The de
124. dent based on predefined criteria A collection of configuration settings at any moment in time As the user makes changes to and validates a configuration revisions are created within the SESA framework These revisions are not made visible to the user The oldest dynamic routing protocol on the Internet and the most commonly used dynamic routing protocol on local area IP networks Routers use RIP to periodically broadcast routing information for the networks that they know how to reach A wireless network made up of multiple access points that allows seamless movement from one coverage area to another without leaving the network or interruption of service See also cell The memory that is stored on the hard drive of the appliance Its contents cannot be accessed or modified by the computer user but can only be read A device that helps local area networks LANs and wide area networks WANs achieve interoperability and connectivity rule run secondary server secure browser security security architecture security domain security gateway security lifecycle security policy security response security risk serial communication serial interface serial port serial transmission server service level agreement services Glossary 175 A logical statement that lets you respond to an event based on predetermined criteria To execute a program or script A computer that is running Symantec AntiVirus
125. der Session Association Optional in the Bind with PPPoE Session drop down list select the session to bind to this host You must have a multi session PPPoE account with your ISP if you want to bind a host to a PPPoE session If you do not have an PPPoE account with your ISP leave the Bind with PPPoE Session drop down list at Session 1 8 Click Add To verify that a host has been configured you can check the Host List displayed at the bottom of the window The fields in the list map to the fields entered when you configured the host Once you have finished adding computers to a computer group you can configure the properties for each computer group on the Computer Groups tab in the SGMI To update an existing computer 1 Inthe left pane click Firewall 2 Inthe right pane on the Computers tab under Host Identity in the Select Host drop down list select a host 3 Make the changes to the computers fields 4 Click Update The updated computer is displayed in the Host List To delete an existing computer 1 Inthe left pane click Firewall 2 Inthe right pane on the Computers tab under Host Identity in the Select Host drop down list select a host 3 Click Delete Defining computer groups Computer groups are logical groups of network entities used for outbound rules You must configure and bind all local hosts nodes to the computer group they are in using the Computers tab See Defining computer group membership
126. e in seconds since the last reboot To set log times See Log Settings tab field descriptions on page 120 1 Inthe SGML in the left pane click Logging Monitoring 2 Inthe right pane on the Log Settings tab under Time in the NTP Server text box type the IP address or fully qualified domain name of the non public NTP Server 3 Click Save Managing log messages The View Log tab shows the current conditions of the appliance Models 460 and 460R have a WAN 2 section for the second WAN port status The information on the View Log tab is current when you click it Conditions may change while you are viewing the screen Refresh updates the View Log tab to display the most current messages You can manually delete the contents of the log at any time To manage log messages After log messages have been generated you can view them refresh them to see the most current messages or clear the log if you no longer want those messages See View Log tab field descriptions on page 119 To view log messages 1 Inthe SGML in the left pane click Logging Monitoring 2 Doone of the following m On the View Log tab view the log messages m To view older log messages click Next Page To refresh log messages 1 Inthe SGML in the left pane click Logging Monitoring 2 Inthe right pane on the View Log tab click Refresh To clear log messages 1 Inthe SGML in the left pane click Logging Monitoring 2 Inthe right pane on th
127. e IP address of a host running a standard Syslog utility to receive the log file 3 Click Save Configuring and verifying SNMP The appliance supports Simple Network Management Protocol SNMP version 1 0 and generates network event alert messages copies them into an SNMP TRAP or GET with the associated community name and then sends them to registered SNMP servers This capability lets the appliance report status information to network wide SNMP based management applications The appliance generates SNMP messages for the following events m Start up of the appliance SGMI authentication failure m Ethernet WAN ports up and down Notrap when WAN ports comes alive as part of system startup m WAN disconnect m WAN coming back after a previous disconnect m Serial WAN port PPPoE or Analog m WAN Link up connected m WAN Link down disconnected A GET is a request from the SNMP server for status information from the Symantec Gateway Security 400 Series appliance The appliance supports all SNMP v1 MIBS information variables using GETs A TRAP collects status information set from Symantec Gateway Security 400 Series appliance to the SNMP server Configuring SNMP sets the IP addresses of the SNMP servers to receive status information TRAPS alerts from the SNMP agent running on the appliance This feature provides minimal protection over a public Logging monitoring and updates 95 Managing logging network therefore for highest secu
128. e Preferred Time UTC text box type the time of day in hours and minutes that you want the appliance to check for updates for example 20 00 for 8 00 PM 5 Click Save Allowing automatic updates through an HTTP proxy server LiveUpdate optional settings let you configure a connection to a LiveUpdate server through an HTTP proxy server Use this feature only in the following situations m The appliance is located behind a Symantec Gateway Security appliance using an HTTP proxy server m The appliance is located behind a third party device using HTTP proxy server m Your ISP uses an HTTP proxy server For more information refer to Symantec LiveUpdate documentation See Trusted Certificates tab field descriptions on page 123 To allow automatic updates through an HTTP proxy server 1 Inthe SGMI in the left pane click Administration 2 Inthe right pane on the LiveUpdate tab under Optional Settings check HTTP proxy Server 3 In the Proxy Server Address text box type the IP address or fully qualified domain name of the HTTP proxy server In the Port text box type the port number In the User Name text box type the proxy user name In the Password text box type the proxy password Click Save N OD oO A Changing the LiveUpdate server location By default the LiveUpdate settings point to liveupdate symantec com You can also configure the appliance to use your own LiveUpdate staging server instead of the Symantec LiveUp
129. e View Log tab click Clear Log Logging monitoring and updates 97 Updating firmware Updating firmware The appliance runs using a set of instructions that are coded into its permanent memory called firmware The firmware contains all of the features and functionality of the appliance There are two types of firmware updates destructive and non destructive Destructive firmware updates completely overwrite the firmware and all of the configuration settings Non destructive firmware updates overwrite the firmware but keep the configurations intact Symantec periodically releases updates to the firmware There are three ways to update the firmware on your appliance m Automatically using the Scheduler in LiveUpdate m Manually using LiveUpdate m Manually by receiving firmware from Symantec Technical Support and applying it using the symcftpw tool By default LiveUpdate checks for updates at the end of the Setup Wizard You may disable this feature See the Symantec Gateway Security 400 Series Installation Guide Warning Performing a manual firmware upgrade with app bin may overwrite your configuration settings Before performing an upgrade make note of your settings Do not use a configuration backup file of older firmware on newer firmware LiveUpdate firmware upgrades never overwrite your configuration When you apply a firmware upgrade manually or through LiveUpdate the LEDs flash in a unique sequence that indicates the pro
130. e available You must disconnect from your PPPoE account before using this feature Service Select a service for the PPPoE account To determine the services that are available click Query Services User Information User Name User name for the PPPoE account This may be different from the account name Some ISPs expect email address format for the user name for example johndoe myisp net Password Password for the PPPoE account Verify Password Retype the password for the PPPoE account Manual Control Connect Create a connection to the PPPoE account Disconnect Closes an open connection to the PPPoE account Dial up Backup amp Analog ISDN tab field descriptions The Dial Up Backup amp Analog ISDN tab lets you configure the security gateway to connect to the Internet with a primary dial up account a primary dial up ISDN account or a back up dial up account Table C 15 Dial up or ISDN tab field descriptions Backup Model Enable Backup Mode If you use a dedicated account as your primary connection you can check Enable Backup Mode to automatically re connect if the connection to the account fails Alive Indicator Site IP IP address or URL to which to connect in the event of a connection or URL failure Table C 15 Field descriptions 131 WAN ISP field descriptions Dial up or ISDN tab field descriptions Continued ISP Ac
131. e default value is set at the factory You can change this value if your ISP is expecting a certain MAC address MAC spoofing or cloning Field descriptions 129 WAN ISP field descriptions Static IP amp DNS tab field descriptions Use the Static IP amp DNS tab to configure the security gateway to connect to the Internet with a static IP address and DNS servers or to connect to your intranet Table C 13 Static IP and DNS tab field descriptions WAN IP IP Address Static IP address for your account Single WAN port If you type an IP address you must also type a netmask and a default models gateway WAN 1 IP WAN 2 IP Netmask Netmask for your account The netmask determines if packets are Dual WAN port sent to the default gateway models If you type a netmask you must also type an IP address and a default gateway Default Gateway IP address of the default gateway The security gateway sends any packet it does not know how to route to the default gateway If you type a default gateway you must also type an IP address and a netmask Domain Name Servers DNS 1 DNS 2 DNS 3 You must specify at least one and up to three DNS servers to use for resolving host and IP addresses PPPoE tab field descriptions Use the PPPoE tab to configure the security gateway to connect to the Internet with an account that uses PPPoE for authentication Table C 14 PPPoE tab field descriptions Sessions WAN Port
132. e netmask of the appliance DHCP Server Type 3 to enable or disable the DHCP server feature of the appliance Start IP Address Type 4 to specify the first IP address in the range that the DHCP server can allocate Finish IP Address Type 5 to specify the last IP address in the range that the DHCP server can allocate Restore to Defaults Type 6 to restore the appliance s default settings for Local IP address local network mask DHCP server and DHCP range For example if you are changing just the local IP address and local network mask do the following Type 1 Type the new IP address Type 7 to save the IP address Type 2 Type the new netmask Type 7 to save the netmask Press Enter Or to restore the default values for the appliance press Enter 11 Type 7 The appliance restarts 12 Onthe rear of the appliance turn DIP switch 3 to the off position down 13 On the rear of the appliance quickly press the reset button Chapter Configuring a connection to the outside network This chapter includes the following topics m About connecting to the outside network m Network examples m Understanding the Setup Wizard m About dual WAN port appliances m Understanding connection types m Configuring connectivity m Configuring advanced connection settings m Configuring dynamic DNS m Configuring routing m Configuring advanced WAN ISP settings About connecting to the outside network The Symantec Gateway Secur
133. e sharing on a Microsoft Windows computer A WINS host is needed to accept the traffic NetBIOS is disabled by default Global Tunnel Normally only requests destined to the network protected by the remote VPN gateway are forwarded through the VPN Other traffic like Web browsing are forwarded straight to the Internet Enabling Global Tunnel forces all external traffic to the previously defined VPN gateway This lets the Main office s firewall filter traffic before sending the request to the Internet This provides your remote site with firewall protection from the Main site Destination networks should be blank with Global Tunnel enabled Enabling Global Tunnel also disables all other SAs since all traffic must be routed through the global tunnel gateway The global tunnel is disabled by default Remote Subnet IP IP address of the remote subnet Mask Mask of the remote subnet Client Tunnels tab field descriptions Use the Client Tunnels tab to define client to gateway tunnels Ensure that you have defined your users on the Client Users tab before defining the tunnel Table C 29 Client tunnel tab field descriptions Group Tunnel VPN Group Select a VPN Group to update or delete Definition You can modify the membership of these three groups You cannot add VPN groups Enable client VPNs on Lets defined VPN users connect to the WAN interface WAN side Enable client VPNs on Lets d
134. e st kets Rea R E enticed Seas ened ee ee Configuring the antivirus clients 00 cscsesessssesesssecesesesesescsssseesesesesesesessscseseeecscsesesssessseseeeeeseeeesens 87 Monitoring antivirus Status eienen eioen eerta ra EE A Era OE EEE AEE SS EESE E eE EEO 87 Viewing AVpe log messages scsssssssssessesesesseseseesesesssceseseseeseseesesesecsesesessesesseseacseaceecseeeeseaeeaeseseeseeeees 87 Verifying A V pe Operation ien E E N ETRE OENE ENEE 87 About content filtering senene E aT e E E a 88 Matiaging content filtering lists senne reee enne iaa E EANO E AA SEE N AAEE EAS EAEE Ee CAE NTA EERENS 89 Enabling content filtering 0 ceeesessssssssececesesesessssssesssesesesesesesesesscesesesesesessseseseesesesesesesesessesseees 89 M nitoring content filten sser ea E ETE E E EEN E T E 90 Preventing attacks Intrusion detection and intrusion prevention 0 cceccsscsssscssessessescssessesscscsscsscsecscescsscsecsecseesesscsseseesesees 91 Atomic packet inspection essas nn aaan E VERA EA N A R E ARN 91 Trojan horse notification sisser eniri e oaa e E SRRA EN OE aaa 92 Setting protection preferences iiis inienn n EAEE NEE ENa E S a iiaea 92 Enabling advanced protection settings ccccssssessssesesseceseseeseseeseeeseseesesenecseseeseseseeseeeeseseeeeseaeseeseeeseesees 93 IP spoofing p otection sorene aaa E O AAE AE A 93 TCP flag Val id ation sosoran o REESE SETTE AE EEEE O aa Ne 93 Logging monitoring and updates Managing logging
135. e text box type the number of minutes you want the security association to stay alive before a rekey occurs The VPN tunnel is temporarily interrupted when rekeys occur 7 Inthe Data Volume Limit text box type the number of kilobytes of traffic to allow before a rekey occurs 8 Inthe Inactivity Timeout text box type the number of minutes of inactivity before a rekey occurs 68 Establishing secure VPN connections Identifying users 9 To use Perfect Forward Secrecy do the following m On the Perfect Forward Secrecy drop down list select a Diffie Hellman group m Next to Perfect Forward Secrecy click Enable 10 Click Add Viewing VPN Policies List The VPN Policies List section of the VPN Policies window displays a summary of each VPN Policy that is configured on the appliance Table 6 2 defines each field in the VPN Policies List summary Table 6 2 VPN Policies List fields a ra Name Displays the name of the VPN Policy Encryption Method Displays the encryption method selected for the VPN Policy SA Lifetime Displays the configured SA Lifetime setting Data Volume Limit Displays the configured Data Volume Limit setting Inactivity Timeout Displays the configured inactivity timeout setting PFS Shows the Perfect Forward Secrecy setting Identifying users The appliance lets you configure two types of VPN clients static users and dynamic users with extended authentication Understanding user types Defined u
136. e that the configuration of your local security gateway is consistent with the configuration associated with that organizational unit The network topology of your local security gateway must be parallel to the network topology that is represented by the organizational unit When there is disparity you can view the validation report in SESA to identify adjustments you must make so that the configuration works correctly with your security gateway Leaving SESA You must manage some aspects of security gateways locally These include m Changing system settings such as network interfaces m Backing up your security gateway To make these local changes you must return the security gateway to local management Returning to local management Joining security gateways to SESA 165 Leaving SESA In the SGMI two buttons on the Advanced Management tab let you return to local management of your security gateway Another button lets you return to managing your security gateways from SESA Table D 2 Options to return to local security gateway management Disconnect SESA Temporarily return to local Reconnect SESA management to make local changes Leave SESA Permanently remove the registration Join SESA of the security gateway from SESA To return to local management temporarily 1 Inthe SGMI in the left pane click Administration 2 Inthe right pane on the Advanced Management tab under Symantec Enterprise Security Architecture SE
137. e this method for capturing WAN packets if you are unable to use a sniffer in the WAN side of your network Only enable this feature as a last resort and turn it off immediately once you finish troubleshooting 3 Click Save To run a test 1 Inthe SGML in the left pane click Logging Monitoring 2 Inthe right pane on the Troubleshooting tab under Testing Tools in the Target Host text box type the IP address or DNS name you want to test 3 Inthe Tool drop down list select PING or DNS Lookup 4 Click Run Tool The results of the test display under Result To test default gateway connectivity 1 Verify that your default gateway is reachable by issuing a PING request to its IP address 2 Ifyou can not PING a host by its IP address you either have an ISP link problem or a routing problem 3 If you can PING a host by IP address but not by DNS name you have a DNS server misconfiguration or the DNS server is not reachable try to PING the DNS server by IP address to verify connectivity 4 Ifyou can successfully resolve some DNS names but not others the most likely problem is not your configuration In this case you will have to work with the authoritative source for that DNS domain to resolve the problem To test WAN connectivity 1 PING the default gateway 2 PING an Internet site by its IP address 3 PING an Internet site by its DNS address Note Some sites block PINGs on their firewalls Make sure the site is reachable before cal
138. each kind of traffic you want to allow If the inbound traffic contains a protocol or application that is not part of an enabled rule the connection request is denied and logged The security gateway supports a maximum of 25 inbound rules When creating inbound rules you must specify the applications server the service protocols and ports that the rule allows and source and destination information for each rule When an inbound rule exists any external host can successfully pass inbound traffic matching the rule Inbound rules redirect traffic that arrives on the WAN ports to another internal server on the protected LAN For example an inbound rule enabled for HTTP results in all HTTP traffic arriving on the WAN port to be redirected to the server specified as the HTTP application server You must define the server before using it in a rule Inbound rules are not bound to a computer group To define inbound access See Inbound Rules field descriptions on page 139 To define a new inbound rule 1 Inthe SGMI in the left pane click Firewall 2 Tocreate a new rule in the right pane on the Inbound Rules tab under Rule Definition in the Name text box type a unique name for the inbound rule 3 Check Enable Rule 4 Inthe Application Server drop down list select a defined computer Computers are defined on the Computers tab in the Firewall section See Computers tab field descriptions on page 137 Network traffic control
139. eceived a permission in a License Module or C use the Software in any manner not authorized by this license 2 Content Updates Certain Symantec software products utilize content that is updated from time to time e g antivirus products utilize updated virus definitions content filtering products utilize updated URL lists some firewall products utilize updated firewall rules vulnerability assessment products utilize updated vulnerability data etc collectively these are referred to as Content Updates You may obtain Content Updates for each Software functionality which You have purchased and activated for use with the Appliance for any period for which You have i purchased a subscription for Content Updates for such Software functionality ii entered into a support agreement that includes Content Updates for such Software functionality or iii otherwise separately acquired the right to obtain Content Updates for such Software functionality This license does not otherwise permit You to obtain and use Content Updates 3 Limited Warranty Symantec warrants that the Software will perform on the Appliance in substantial compliance with the written documentation accompanying the Appliance for a period of thirty 30 days from the date of original purchase of the Appliance Your sole remedy in the event of a breach of this warranty will be that Symantec will at its option repair or replace any defective Software returned to Symantec
140. ection Port numbers identify types of ports For example both TCP and UDP use port 80 for transporting HTTP data An intrusion method in which attackers use software tools called port scanners to find services currently running on target systems This is done by scanning the target for open ports usually by sending a connection request to each port and waiting for a response If a response is received the port is known to be open A protocol used for communication between two computers This is most commonly seen with dial up accounts to an ISP However Point to Point Protocol over Ethernet PPPoE has now become more popular with many DSL providers A standard for incorporating the popular PPP protocol widely used for dial up Internet connections into a dedicated modem connection that uses Ethernet as its transport at the carrier s facilities Used by a large number of DSL modem providers PPPoE supports the protocol layers and authentication widely used in PPP and enables a point to point connection to be established in the normally multipoint architecture of Ethernet A protocol from Microsoft that is used to create a virtual private network VPN over the Internet Remote users can access their corporate networks using any gateway that supports PPTP on its servers Some ISPs use PPTP as an authentication method similar to PPP or PPPoE PPTP is based on the point to point protocol PPP protocol and the generic routing encapsulation GRE pr
141. ed by Symantec Technical Support 134 Field descriptions WAN ISP field descriptions Table C 17 Dynamic DNS tab field descriptions Continued TZO Dynamic DNS Key An alphanumeric string of characters that acts as a password for the Service TZO account TZO sends the key when the account is created The maximum TZO key length is 16 characters Email Email address that acts as a user name with the TZO service Domain Domain name that you want to manage with the TZO service For example marketing mysite com Standard Service User Name User name for the account that you create with a dynamic DNS service Password Password for the account that you create with a dynamic DNS service Verify Password Retype the dynamic DNS account password Server IP address or DNS resolvable name of the server that provides the dynamic DNS service For example members dyndns org Host Name The name to assign to the security gateway For example if you want marketing as the host name and the domain name is mysite com you access the security gateway by marketing mysite com Standard Optional Wildcards Enables external access to yoursite yourdomain com where Settings m isaCNAME like www mail irc or ftp m yoursite is the host name m yourdomain com is your domain name Backup MX Enables a backup mail exchanger If you check this check box the mail exchanger you specify in the Mail Exchanger text box is used f
142. eek worldwide in a variety of languages for those customers enrolled in the Platinum Support program m Advanced features such as the Symantec Alerting Service and Technical Account Manager role offer enhanced response and proactive security support Please visit our Web site for current information on Support Programs The specific features available may vary based on the level of support purchased and the specific product that you are using Licensing and registration See Licensing on page 111 Contacting Technical Support Customers with a current maintenance agreement may contact the Technical Support group by phone or online at www symantec com techsupp Customers with Gold or Platinum support agreements may contact Platinum Technical Support by the Gold or Platinum Web site at https www secure symantec com gold or https www secure symantec com platinum When contacting the Technical Support group please have the following Customer Service Product release level Hardware information Available memory disk space NIC information Operating system Version and patch level Network topology Router gateway and IP address information Problem description Error messages log files Troubleshooting performed prior to contacting Symantec Recent software configuration changes and or network changes To contact Enterprise Customer Service online go to www symantec com techsupp select the appropriate Global Site for y
143. eeps track of their usage time and maintains security by controlling access to sensitive files or actions MAC Media Access Control On a network a computer s unique hardware number The MAC address is used by the Media Access Control sublayer main mode MIME Multipurpose Internet Mail Extensions modem monitoring multicast multicasting name server NAT Network Address Translation NAT Network Address Translation pool network NIDS network based intrusion detection system NNTP Network News Transfer Protocol node NTP null modem cable online of the Data Link Control DLC layer of telecommunication protocols There is a different MAC sublayer for each physical device type The data link layer is the protocol layer in a program that handles the moving of data in and out across a physical link in a network An ISAKMP IKE negotiation typically used for gateway to gateway VPN tunnels where the originating IP address of both parties is known More secure than the abbreviated aggressive mode which doesn t use IP source as part of the authentication exchange See also aggressive mode A protocol for transmitting documents with different formats over the Internet A device that enables a computer to transmit information over a standard telephone line Modems can transmit at different speeds or data transfer rates See also bps The viewing of activity in a security environment generally in real t
144. efined VPN users connect to LAN and wireless LAN interface WLAN LAN side VPN Network Primary DNS IP address of the primary DNS server that resolves names for the Parameters VPN user Secondary DNS IP address of the secondary DNS server that resolves names for the VPN user Primary WINS IP address of the primary WINS server Windows Internet Naming Service WINS is a system that determines the IP address associated with a particular network computer Secondary WINS IP address of the secondary WINS server Primary Domain IP address of the Primary Domain Controller PDC Controller PDC 150 Field descriptions VPN field descriptions Table C 29 Client tunnel tab field descriptions Continued Extended User Authentication Enable Extended User Requires all users in the selected VPN group use RADIUS for Authentication extended authentication after phase 1 but before phase 2 RADIUS Group If a RADIUS group binding is specified the remote user must be a Binding member of that group on the RADIUS Server The filter ID returned from RADIUS must match this value to authenticate the user When specifying RADIUS group bindings no two client tunnels may have the same setting for the group binding The maximum length of the value is 25 characters WAN Client Policy Enable Content Traffic for all clients in the selected VPN group is subject to the Filtering content filtering rules defined in allow and deny l
145. emote management ccescsessscecssssscssessssscsescssssssssescssscscsesssesesssesssssscseseseseseessesassesees 21 Managing the security gateway using the serial console ee ceeeesseseseseeceseeeeseseeceseeeeseseeeeseseeeeseeetaeeees 23 Configuring a connection to the outside network About connecting to the outside network oc eeecccesesesesseseeeeseseeeesesescesescesesesaeseeesaesesacseseeseeaeseesseneeeesesaes Network examples cossiga R es sevice eek evenness ena ee ede ener Understanding the Setup Wizard ou cecccccscsssssseeseseseeseseseseeseseeseseeesesesaesesesaeseeesaeseeaeseseeaeeesseaeeeeaeeeseeaees About dual WAN port appliances cceceecssessesesessesesessesesescesesseseseceacseeseseecscsesaeseaeseeeaeseseeseeesseeeseeeeeeeaes Understanding connection types cccecssessssssesssceseeseseseecesessesesescesesesseseseesesesaeseeesaeseeaeaeeeeaesesseaeeeeaeeeseeaees Comfiguring Connectivity 5ccccccs c isi castes diate a n ANA A r ANT DACE ee a a a E E E A a N Dial up accounts Configuring advanced connection settings Advanced DHCP settings ccccccssssssessssessessseeseseseeeeseecescseeesesesecseeeacseeesaeeesasseeeeas Advanced PPP settings Maximum Transmission Unit MTU oo cece ccccsccssccssecsssccssccscecsssccesscssscesssesssesuecssesessecsseserssessesees Configuring dynamic DNS seresa erreten aparer EEEN EARE ARENE iter EEE EEEE ei Forcing dynamic DNS updates eeeeesesssssseseceseseseseses
146. ent m None Use only for debugging clients 144 Field descriptions VPN field descriptions Table C 26 Advanced tab field descriptions Continued Exposed Host Enable Exposed Host Check to enable an exposed host Activate this feature only when required This lets one computer on a LAN have unrestricted two way communication with Internet servers or users This feature is useful for hosting games or special server or application LAN IP Address IP address of the exposed host If a host is defined as an exposed host all traffic not specifically permitted by an inbound rule is automatically redirected to the exposed host Bind with WAN Port Select the WAN port to bind to the exposed host The default is WAN Dual WAN port port 1 models Session In the drop down list select the session to bind to the exposed host VPN field descriptions Virtual Private Networks VPNs let you securely extend the boundaries of your internal network to use insecure communication channels such as the Internet to safely transport sensitive data VPNs are used to allow a single user or a remote network access to the protected resources of another network The Symantec Gateway Security 300 400 Series security gateways support two types of VPN tunnels Gateway to Gateway and Client to Gateway This section contains the following topics m Dynamic Tunnels tab field descriptions m Static Tunnels tab field descriptions m Client
147. er button on the back panel of the appliance Turn DIP switches 1 and 2 4 to the on up position To turn on the power press the power button 7 Copy the firmware file and the symcftpw utility into a temporary folder on your hard drive Double click the symcftpw icon O uu A U N e In the Server IP text box type the LAN IP address of the appliance The default LAN IP address of the appliance is 192 168 0 1 N In the Local File text box type a file name for the firmware upgrade file 8 Click Put Wait several minutes before restarting the appliance Flashing is complete when symcftpw reports that flashing is complete LEDs 2 and 3 stop flashing alternately the appliance has restarted and then LEDs 1 and 3 are illuminated steadily This may take several minutes 9 Turn DIP switches 1 and 2 4 to the off position down Running LiveUpdate Now Run LiveUpdate Now is the manual LiveUpdate feature Run LiveUpdate Now immediately checks for the latest firmware updates for your appliance and installs it If you are already running the latest version it does not update your appliance LiveUpdate updates retain your configuration You can also change the address of the LiveUpdate server to check See Changing the LiveUpdate server location on page 98 To run LiveUpdate now See Trusted Certificates tab field descriptions on page 123 1 Inthe SGMI in the left pane click Administration 2 Inthe right pane on t
148. ermit other traffic click Use Deny List 13 Click Update Configuring global policy settings for client to gateway VPN tunnels Some settings are configurable at a global level for client to gateway VPN tunnels These settings configure the Phase 1 ID type for all client VPN tunnels connecting to the security gateway These settings are shared by all three VPN groups To configure global policy settings for client to gateway VPN tunnels See Advanced tab field descriptions on page 153 1 Inthe SGMI in the left pane click VPN 2 Inthe right pane on the Advanced tab under Global VPN Client Settings do the following m On the Local Gateway Phase 1 ID Type drop down list select an ID type m Inthe Local Gateway Phase 1 ID text box type the value that corresponds to the ID type you selected m On the VPN Policy drop down list select a VPN policy to apply to all client tunnels 3 Under Dynamic VPN Client Settings do the following m To enable dynamic users for all three VPN groups click Enable Dynamic VPN Client Tunnels m Inthe Pre shared Key text box type a string of characters for the key 4 Click Save 5 Click Update Sharing information with your clients Use Table 6 10 to record information to give to your clients so that they may connect to the security gateway Table 6 10 Client configuration information Gateway IP address or fully qualified domain name Pre shared key user Share this inf
149. ernen a a a a a a aa a oaia aaae ieee ea ie Corifigtring log preferentes nomene rennene aS rN pE EEE EEES esate a G a PSSE EAn a Managing log messages s scssssssssesseseseseseseseseescscsesesesscsesesesesesesecsssssensacseaesesesesnsceasseaeaeaeeestseseeeeaeaeess Updating firmware aryant uE AE N a ee ee a a Automatically updating firmware 0 c ccccccsscssssssssscesesesesessssssesssesesesesesesesseseseeesesesesesesssseesesesscseseasees Upgrading firmware mantial hy aisse nene aene EEE E ENA ne Aa ESENS Checking firmware update status cccccsssssssssesssesesesesesessssesssscesesesesesessssssssesssesesesesesessseseeeseeseaes Backing up and restoring configurations ccccccsssssssesecssssesesesssesssssesssesesesesesesesseeseesesesesesesessseesenes Resetting the appliance Interpreting LEDS e r a E a E EEEE EEA EEE EESE ERER EE LiveUpdate and firmware upgrade LED sequences Troubleshooting About troubleshooting inei ar EEO EEE E E ARE EE E EEI aS 109 Accessing troubleshooting information cccccsssssssssesesesesessssesssesesesesesesesesesseseseseseseseessesecseseseseseaees 110 Licensing Field descriptions Logging Monitoring field descriptions 0 cccesesesesesesesessssesssscesesesesesesessscsceessesesesesessessesesecseseseseeseeeeees 119 Status tab field descriptions sarye nni ea eaa woes dcecibs coestaveubevsce cass tvbviiveststesaervacseaceses 120 View Log tab field descriptions cccccccesess
150. es of security policies Global IKE and VPN Global IKE Policy Phase 1 non configurable except for SA lifetime parameter The security gateway includes a predefined global IKE policy that automatically applies to your IKE Phase 1 negotiations for all tunnels defined on the security gateway This global IKE policy works in conjunction with the VPN policy you configure for Phase 2 negotiations The Global IKE Policy provides the parameters that define Phase 1 negotiations of the IKE tunnel while the VPN policy you configure and select provides the parameters for Phase 2 negotiations There can only be one global IKE policy on a security gateway The only parameter in the Global IKE Policy whose setting can be changed is the SA security association Lifetime which specifies the period of time after which the tunnel rekeys in minutes This parameter is located in VPN gt Advanced gt Global IKE Settings Phase 1 Rekey The default is 1080 minutes 18 hours The other parameters cannot be altered When two security gateways are negotiating Phase 1 the first security gateway sends a list of proposals called a transform proposal list The security gateway to which it is connecting then selects a proposal from the list that it likes best generally the strongest available option You cannot change the transform proposal list on the appliance however this information may be useful to give to the remote gateway administrator Table 6 1 lists the o
151. escececeeestsesesessscessceeeaceeacaeeeseeseeeeacaeacaeeeseeeseeees Disabling dynamic DNS sesccccccccscetessucesssecteaseeusseugecsssnctvasestaneeibeuseissevedes Ee E a E E EE E EEEE E ER Configuring ro ting mispensas i ei siai a e e ra i aii eri akiai iai Enabling dynamic touting ispecies ceosicacscaxcesacacesecetacs Caseevev Eere eK Er EPEE EAEE EEE EEE SE ET EEEE TEE ai 6 Contents Chapter 4 Chapter 5 Chapter 6 Configuring static route entries oo cc ccecesssssesesesesesessssesssesesescsesesessssssseeseseessesesesessseseeeseeeescseseseesseees 44 Configuring advanced WAN ISP Settings ccecssscssesessseeseseseseseseseseseseeeeseseseseaeaeseeesseseacseaeseeeeeseeeeaeaeaes 45 High availability cic co tos cscdvsctevesidesexgpes A EE E cited RERE E PAE EAEE lentes 45 Load balancing oesrienn nn Been dei EEE hee aad eee Ss 46 SMTP bindi g aaeeeo rr A edece ecu aue et eantiotan Ag Redes E E EEE 46 Binding toother protocols scssisnecrissrrseiitr era ieee En eresie PE EAEE Eear eN aE SaNi Ee resis 47 Configuring failover DNS gateway ecese Optional network settings Configuring internal connections Configuring LAN IP settings srecen a a A E RER R AE EE E R 51 Configuring the appliance as a DHCP server oo eccesesesessssesssssecescsesesesesesesescseseeecseseseseseseseeeesseseeseseseseneees 52 Monitoring DACP EEE VA REE AE E E A T A E 53 Configuring port assis HMentS nere r E E ET E O ROR 53 Standard port
152. esent then your AVpe feature is correctly configured and operational 5 If you are able to connect to www symantec com recheck your AVpe configuration settings and group assignments Make sure that you uninstalled Symantec AntiVirus Corporate Edition from the client workstation and that the client is a member of a group with AVpe enabled with connections blocked Retry steps 1 through 4 above About content filtering Symantec Gateway Security 400 Series supports basic content filtering for outbound traffic You use content filtering to restrict the content to which clients have access For example to restrict your users from seeing gambling sites you configure content filtering to deny access to gambling URLs that you specify Content filtering is administered through computer groups and VPN groups A computer group is a group of computers defined in the Firewall section to which you apply the same rules Similarly a VPN group is a group of VPN users defined in the VPN section to which you apply the same rules When you define a computer group or VPN group you specify if the group uses a content filtering deny or allow list Deny lists black lists block internal access to sites on the list and allows all others sites Allow lists white lists permit internal access to sites on the list and blocks access to all other sites Note By default content filtering is disabled for all computer groups and VPN groups The allow list permi
153. ess by setting a password for the administrator as well as defining the IP addresses of computers that are authorized to access the appliance from the WAN side You can also configure a range of IP addresses from which you can remotely manage the appliance The administration user name is always admin Note You must set the administration password before you have remote access to the SGMI Setting the administration password The administration password provides secure access to the SGMI Setting and changing the password periodically limits access to the SGMI to people who have been given the password You must have installed the appliance and connected your browser to the SGMI to set the password See the Symantec Gateway Security 400 Series Installation Guide for more information about setting up the appliance You can set or reset the administration password in a number of ways including m Running the Setup Wizard The Setup Wizard will prompt you to change the password The default password is password See Understanding the Setup Wizard on page 27 m Inthe SGMI on the Administration gt Basic Management tab See To set the administration password on page 19 m Pushing Reset button on rear panel Resetting the appliance using the Reset button resets the password to password resets the LAN IP address to 192 168 0 1 and enables the DHCP server See Resetting the appliance on page 104 m Connecting to the ser
154. ess of whether actual dialing is involved Acryptographic technique that enables sending and receiving parties to exchange public keys in a manner that derives a shared secret key at both ends Different strengths are available and are referred to as Group 1 Group 2 and Group 5 and higher DH is used as part of VPN negotiations to create new keys See also Perfect Forward Secrecy A status that indicates that a program job policy or scan is not available For example if scheduled scans are disabled a scheduled scan does not execute when the date and time specified for the scan is reached DNS Domain Name System A hierarchical system of host naming that groups TCP IP hosts into categories For example in the Internet naming DNS server domain domain entity download dynamic DNS email server enabled encryption Ethernet event event class Event Collector event forwarding scheme names with com extensions identify hosts in commercial businesses See also DNS server A repository of addressing information for specific Internet hosts Name servers use the Domain Name System DNS to map IP addresses to Internet hosts See also DNS A group of computers or devices that share a common directory database and are administered as a unit On the Internet domains organize network addresses into hierarchical subsets For example the com domain identifies host systems that are used for commercial business A group
155. est in the range To permit only one IP address type the same value in both text boxes To prevent remote access leave these fields blank To enable remote Trivial File Transfer Protocol TFTP upgrades to the appliance s firmware from the configured IP address range check Allow Remote Firmware Upgrade The default is disabled See Upgrading firmware manually on page 100 Click Save To access the SGMI remotely browse to the lt appliance IP address gt 8088 where lt appliance IP address gt is the WAN IP address of the appliance When you attempt to access the SGMI remotely you must log in with the administration user name and password Administering the security gateway 21 Managing the security gateway using the serial console Managing the security gateway using the serial console You can configure or reset the security gateway through the serial port using the null modem cable that is supplied with the security gateway Configuring the security gateway from the serial console is useful when installing the appliance in an existing network because it prevents the security gateway from interfering with the network when it is connected You can configure the following subset of settings through the serial console LAN IP address IP address of the security gateway LAN network mask Enable or disable the DHCP server Range of IP addresses for the DHCP server to allocate To manage the security gateway using the seri
156. et cable Your ISP or network administrator may also be able to help you determine your connection type 30 Configuring a connection to the outside network Configuring connectivity Configuring connectivity DHCP PPPoE Once you have determined your connection type you can configure the appliance to connect to the Internet or intranet using the settings appropriate for that connection Dynamic Host Configuration Protocol DHCP automates the network configuration of computers It lets a network with many clients extract configuration information from a single DHCP server In the case of a dedicated Internet account the users are the clients extracting information from the ISP s DHCP server and IP addresses are only assigned to connected accounts Your ISP account may use DHCP to allocate IP addresses Account types that frequently use DHCP are broadband cable and DSL ISPs may authenticate broadband cable connections using the MAC physical address of your computer or gateway Before configuring DHCP for your WAN ports you must select DHCP Auto IP as your connection type on the Main Setup window To configure DHCP See Main Setup tab field descriptions on page 128 1 Inthe SGMI in the left pane click WAN ISP 2 For models 420 and 440 do the following m Inthe right pane on the Main Setup tab under Connection Type click DHCP m Click Save 3 For models 460 and 460R do the following m To select
157. etermine if the network connection is operational If the alive indicator fails the appliance starts a failover sequence using DNS requests to a backup connection Also called a white list A list of URLs that a group of users is allowed to see Other sites are blocked This is useful for companies with employees that only need access to a set number of Web sites to perform their tasks A subcategory of a security policy that pertains to computer viruses See also antivirus policy enforcement See integrating product A server that lets clients use applications and databases that are managed by the server You define each application server for use in inbound or outbound rules A protocol for mapping an Internet Protocol IP address to a physical computer address also known as aa MAC address that is recognized in the local network When an interface on one computer needs to talk to another interface it will ARP that is send out a broadcast asking for a response from the interface that matches the IP address The response contains the hardware address of the interface that has the corresponding IP address A form of data transmission in which information is sent intermittently The sending device transmits a start bit and stop bit to indicate the beginning and end of a piece of data The features of network traffic either in the heading of a packet or in the pattern of a group of packets that distinguish attacks from legitimate tra
158. etric encryption that operates in conjunction with the private key The sender looks up the public key of the intended recipient and uses the public key to encrypt the message The recipient then uses his or her private key which is known only to the recipient to decrypt the message Remote Authentication Dial In User Service An access control protocol that uses a challenge response method for authentication Used to authenticate users for access to network resources The memory that information required by currently running programs is kept in including the program itself Random access refers to the fact that any program can read from or write to any memory register Many operating systems limit access to defined memory addresses to protect critical occupied or reserved RAM locations from tampering The use of programs that allow access over the Internet from another computer to gain information or to attack or alter your computer The interaction with a host by a remote computer through a telephone connection or another communications line such as a network or a direct serial cable connection A method of managing the configuration of a product from remote sites other than through a dedicated local management station Usually performed with the same interface or look and feel as a local management session An action that clears any changes made since the last apply or reset action The resulting action taken for a predefined event or inci
159. eway Security 5400 Series and Symantec Enterprise Firewall accept either Main Mode or Aggressive Mode Phase 1 negotiations from a remote gateway When initiating a VPN tunnel to Symantec Gateway Security 5400 or Symantec Enterprise Firewall configure the Symantec Gateway Security 400 Series appliance to use Main Mode so that if the remote end initiates the VPN tunnel it does not establish a connection When a non Symantec gateway initiates a VPN tunnel to an Symantec Gateway Security 400 Series appliance the Symantec Gateway Security 400 Series appliance accepts the mode set by the administrator on the tunnel definition When a Symantec Gateway Security 400 Series appliance initiates a VPN tunnel to a non Symantec security gateway the Symantec Gateway Security 400 Series appliance should use the mode set by the administrator on the tunnel definition the default setting is Main Mode If Main Mode is not used it may cause rekey problems if the remote security gateway tries to rekey first Creating VPN tunnels to Symantec Gateway Security 5400 Series clusters To create a VPN tunnel to a Symantec Gateway Security 5400 Series appliance high availability load balancing cluster define the VPN tunnel using the virtual IP address of the cluster Tunnels between Symantec Gateway 400 Series and Symantec Gateway Security 5400 Series appliances are supported in high availability only Configuring dynamic gateway to gateway tunnels Dynamic tunnels also
160. fault depends on the selection you made in the Application drop down list Listen on Port s Defines the range of ports that listen for packets m Start Type the first port in the range of listen on ports m End Type the last port in the range of listen on ports The quantity of ports in the range must match the selection made in the Redirect to Port s field For example if you set the Listen on Port s range to 20 to 27 the Redirect to Port s range must also be 7 ports The defaults depend on the selection you made in the Application drop down list Redirect to Port s Defines the range of ports to which the packets are redirected m Start Type the first port in the range of redirect to ports m End Type the last port in the range of redirect to end ports The quantity of ports in the range must match the selection made in the Listen on Port s field For example if you set the Redirect to Port s range to 20 to 27 the Listen on Port s range must also be 7 ports The defaults depend on the selection you made in the Application drop down list Service List Name Name of the service Protocol Protocol associated with the service Listen on Start Port First port in the range on which to listen Listen on End Port Last port in the range on which to listen Redirect to Start Port First port in the range to which to redirect Redirect to End Port Last port in the ran
161. ffic The process of determining the identity of a user attempting to access a network Authentication occurs through challenge response time based code sequences or other techniques Authentication typically involves the use of a password certificate PIN or other information that can be used to validate identity over a computer network See also RADIUS 168 Glossary bandwidth blended threat bps bits per second broadcast broadcast storm buffer overflow attack cable client client computer communications communications device communications session computer computer group configuration content filtering data rate data transfer data transmission data driven attack denial of service DoS attack The amount of data transmitted or received per unit time In digital systems bandwidth is proportional to the data speed in bits per second bps Thus a modem that works at 57 600 bps has twice the bandwidth of a modem that works at 28 800 bps See also bps An attack that uses multiple methods to transmit and spread The damage caused by blended threats can be rapid and widespread Protection from blended threats requires multiple layers of defense and response mechanisms A measure of the speed at which a device such as a modem can transfer bits of data To simultaneously send the same message to all users on a network A network condition in which broadcast Ethernet or IP packets multipl
162. ful validation is a required piece of the activation process A status that indicates that a program job policy or scan is running For example when a scheduled scan executes it is considered active Active is also used to describe the current state of a connection An active session refers to an existing connection A process that lets you present routable addresses to the security gateway for packets passing through a security gateway interface or secure tunnel 1 A person who oversees the operation of a network 2 A person who is responsible for installing appliances on a network and configuring them The administrator may also update security settings on workstations A shortened ISAKMP IKE negotiation typically used for clients connecting to gateways where their originating IP address is unknown Aggressive mode is less secure than the longer main mode which uses the IP source address as part of the authentication exchange See also IKE main mode An event or set of events that an administrator should review and potentially configure a notification for Alerts are used to escalate a single event or a group of events and to draw more attention to the events A setting on a rule that instructs the security gateway to monitor suspicious activity based on access attempts and time intervals You can customize or disable the default threshold according to your needs An external WAN side network node that is used as a beacon point to d
163. ge to which to redirect Special Applications tab field descriptions Certain applications with two way communication games video or teleconferencing require dynamic ports on the security gateway Use the Special Applications tab to define those applications Table C 25 Special Applications tab field descriptions Special Applications Application Select a special application to update or delete Field descriptions Firewall field descriptions Table C 25 Special Applications tab field descriptions Continued Special Application Settings Name Name of the special application Enable Enables the special application for all computer groups Incoming Protocol Protocol for the incoming packets Options include m TCP m UDP Listen on Port s Range of ports on which the packets are received m Start First port in the range of incoming ports m End Last port in the range of incoming ports Outgoing Protocol Protocol for outgoing packets Options include m TCP m UDP Incoming Port s Range of ports on which the packets are sent m Start First port in the range of outgoing ports m End Last port in the range of outgoing ports Special Application List Name Name of the special application Enabled Indicates whether the special application is enabled for all computer groups Incoming Protocol Protocol for the incoming packets Listen
164. going SPI on the IPSec packet This value must match the incoming SPI on the remote end of the tunnel The default value is a decimal number Prepend the value with Ox for hex numbers This number between 257 and 8192 identifies the tunnel VPN Policy The policy that dictates authentication encryption and timeout settings This list contains pre defined policies and any policies you created on the VPN Policies tab Encryption Key Key for encrypting the data section of the IPsec packet The key scrambles and de scrambles your transmitted data The default number type is decimal For hex numbers prepend the value with Ox Key length depends on the encryption strength specified in the VPN policy The remote end must have a matching encryption key Authentication Key Key for authenticating IPsec packets The default number type is decimal For hex numbers prepend this value with Ox Key length depends on the authentication type MD5 SHA1 and so on selected in the VPN policy Table C 28 Remote Security Gateway Field descriptions 149 VPN field descriptions Static Tunnel tab field descriptions Continued Gateway Address IP address or fully qualified domain name of the security gateway to which you are creating a tunnel The maximum length for this field is 128 alphanumeric characters NetBIOS Broadcast Clicking Enable allows browsing of the VPN network in the Network Neighborhood and fil
165. gress See LiveUpdate and firmware upgrade LED sequences on page 106 Automatically updating firmware LiveUpdate is a Symantec technology that enables you to automatically keep your Symantec products up to date with the latest revision You can configure LiveUpdate to check for updates automatically or you can manually run LiveUpdate at any time to check for updates Symantec periodically releases firmware updates to ensure the highest level of security available Run LiveUpdate as soon as your Symantec Gateway Security 400 Series appliance is connected to the Internet See Running LiveUpdate Now on page 101 When LiveUpdate checks for firmware updates if a new firmware package is found LiveUpdate downloads and begins applying the firmware without prompting the administrator During the download and application the SGMI displays a message stating that an update is being applied and to wait a few minutes before attempting to log into the SGMI Afterwards the appliance may restart When firmware application is complete a message is logged If LiveUpdate checks for firmware updates and none are available the current firmware is up to date a message is logged All LiveUpdate packages posted by Symantec are tested and validated by Symantec These packages do not intentionally overwrite your current configuration However they require an automatic restart of the appliance To minimize downtime or interruption to your network
166. h TCP and IP are two distinct protocols each of which serves a specific communicational purpose the term TCP IP is used to refer to a set of protocols including Hypertext Transfer Protocol HTTP File Transfer Protocol FTP Simple Mail Transfer Protocol SMTP Post Office Protocol POP and many others This set of protocols lets computers on the Internet exchange different types of information using different applications The main Internet protocol for creating an interactive control connection with a remote computer Telnet is the most common way of establishing a remote connection to a network as with telecommuters or remote workers Trivial File Transfer Protocol A version of the FTP protocol that has no directory or password capability Used for file transfers with low network or application overhead like sending firmware to an appliance for flashing The number of events that satisfy certain criteria Administrators define threshold rules to determine when notifications are to be delivered A predetermined period of time during which a given task must be completed If the time out value is reached before or during the execution of a task the task is canceled You can configure a pcAnywhere host to disconnect from a remote computer after a certain amount of time has passed without activity A rogue program that disguises itself as a legitimate file to lure users to download and run it It takes the identity of a trusted application t
167. hat grants access to the universe all computers for HTTP when hosting a publicly accessible Web server behind the behind the security gateway To prepare for use In communications to set a modem and software parameters at the start of a session A security product that uses a SESA Agent to enable centralized event logging alert management and configurations distribution Different intercommunicating networks funded by both commercial and government organizations It connects networks in many countries No one owns or runs the Internet There are thousands of enterprise networks connected to the Internet and there are millions of users with thousands more joining every day An in house Web site that serves the employees of the enterprise Although intranet pages may link to the Internet an intranet is not a site accessed by the general public A security service that monitors and analyzes system events for the purpose of finding and providing real time or near real time warning of attempts to access system resources in an unauthorized manner A system of automatically acting upon intrusion detection information to block also called gating the intrusion attempt s network traffic without user intervention The method or protocol by which data is communicated from one computer to another on the Internet Each computer known as a host on the Internet has at least one address that uniquely identifies it to all other computers on the I
168. he LAN for packet capturing sniffing This is a potential security issue so ensure that you disable this feature when you are done troubleshooting The security gateway also provides both PING and DNS Lookup testing tools to verify network connectivity and DNS resolution Note The PING troubleshooting tool should only be used to issue PING commands to other IP addresses you cannot PING the appliance itself The Result section of the Troubleshooting window shows the result of running a PING or DNS Lookup test To troubleshoot Symantec Gateway Security 400 Series appliances See Logging Monitoring field descriptions on page 117 See Troubleshooting tab field descriptions on page 121 To set logging levels 1 Inthe SGML in the left pane click Logging Monitoring 2 Inthe right pane on the Log Settings tab under Log Type check the information to log Debug information captures a great deal of information Use this option only during troubleshooting 3 Click Save 108 Troubleshooting Accessing troubleshooting information To enable forward WAN packets to LAN 1 Inthe SGML in the left pane click Logging Monitoring 2 Inthe right pane on the Troubleshooting tab under Broadcast Debug Level check Forward WAN packets to LAN Forwarding packets received on the WAN ports to the LAN for troubleshooting purposes may allow traffic normally denied by the security gateway into your internal network You should only us
169. he LiveUpdate tab under Status click Run LiveUpdate Now Forcing a firmware update If manually flashing the firmware does not work you can force the firmware on to the appliance Do this only if flashing firmware as instructed in Flashing the firmware on page 100 does not work or if you are instructed to do so by Symantec Technical Support Use Figure 9 2 and Figure 9 3 for reference in the following procedure Before you begin note all of your configuration settings 102 Logging monitoring and updates Updating firmware To force a firmware update 1 To turn off the power press the power button on the back panel of the appliance 2 Turn DIP switches 2 and 4 4 to the on up position 3 Toturn on the power press the power button 7 4 On the LAN computer from which you will TFTP the firmware to the appliance change its IP address to a static IP address outside the default IP address range 192 168 0 2 1 92 168 0 52 Also do not give the computer the static IP address 192 168 0 1 5 Copy the firmware file and the symcftpw utility into a temporary folder on your hard drive 6 Double click the symcftpw icon 7 Inthe Server IP text box type the LAN IP address of the appliance The default LAN IP address of the appliance is 192 168 0 1 8 Inthe Local File text box type a file name for the firmware upgrade file 9 Click Put Wait several minutes before restarting the appliance Flashing is complete when symcftpw
170. his value is 31 It must match the remote Client ID in Symantec Client VPN software You can add up to 50 client users Pre Shared Key ISAKMP IKE authenticating key The key is unique to this user You must enter a pre shared key The maximum number of alphanumeric characters for this value is 64 The pre shared key must match the pre shared key offered by the remote VPN client VPN Group Defines the VPN Group tunnel definition for this user VPN Policies tab field descriptions You select one VPN policy for each tunnel Use the VPN Policies tab to define each policy or to edit a default policy Table C 31 Field descriptions 151 VPN field descriptions VPN policies field descriptions IPsec Security Association Phase 2 Parameters VPN Policy Select a policy to update or delete You cannot delete Symantec pre defined policies Options include m ike_default_crypto m ike _default_crypto_strong m Static_default_crypto m Static_default_crypto_strong E Any VPN policies you created Name Name to assign to the policy This name is used for SGMI reference only The maximum value is 28 alphanumeric characters Data Integrity Authentication Options include m ESP MD5 default m ESP SHA1 m AHMD5 m AH SHA1 This selection must match the remote security gateway When ESP is used the specified data integrity algorithm is applied only to the data portion of the tunne
171. ht pane on the PPPoE tab under Manual Control click Connect 3 Inthe left pane click Logging Monitoring In the right pane on the Status tab under WAN1 External Port the connection status is displayed If you are not connected verify the following items m Your user name and password are correct Some ISPs expect the user name to be in email address format for example johndoe myisp net m Check that all the cables are firmly plugged in m Verify your account information with your ISP and check that your account is active Connecting manually to your PPPoE account You can manually connect or disconnect from your PPPoE account For models 460 and 460R you can manually control the connection for either WAN port This is useful to troubleshoot the connection to the ISP To manually control your PPPoE account You can manually control your PPPoE account through the SGMI See PPPoE tab field descriptions on page 129 To manually connect to the PPPoE account 1 Inthe SGMI in the left pane click WAN ISP 2 For models 420 and 440 in the right pane on the PPPoE tab under Manual Control click Connect 3 For models 460 and 460R do the following m Inthe right pane on the PPPoE tab under WAN Port and Sessions in the WAN Port drop down list select the WAN port to connect m Inthe Session drop down list select a PPPoE session m Under Manual Control click Connect To manually disconnect from the PPPoE account
172. ial port Resetting the appliance through the serial console resets the password to password See Managing the security gateway using the serial console on page 21 m Flashing the appliance Reflashing the appliance with the app bin version of the firmware resets the password to password See Upgrading firmware manually on page 100 Note You should change the administration password on a regular basis to maintain a high level of security Administering the security gateway 19 Managing administrative access To set the administration password See Basic Management tab field descriptions on page 121 To configure a password 1 Inthe SGMI in the left pane click Administration 2 Inthe right pane on the Basic Management tab under Administration Password in the admin s Password text box type the password Passwords are case sensitive 3 Inthe Verify Password text box type the password again 4 Click Save To manually reset the password 1 Onthe back of the appliance press the reset button for 10 seconds 2 Repeat the procedure to configure a password See To configure a password on page 19 Configuring remote management You can access the SGMI remotely from the WAN using a computer with an IP address that falls within a range of addresses set on the security gateway The range is defined by a start and end IP address which are configured in Administration gt Basic Management gt Remote Man
173. ication key lengths Table 6 6 Authentication key lengths MD5 16 34 Ox 16 hex digits SHA1 20 42 Ox 20 hex digits Configuration tasks for static gateway to gateway tunnels Table 6 7 describes the tasks that are required to configure a static gateway to gateway VPN tunnel Note Complete each step in Table 6 7 twice first for the local security gateway and then for the remote security gateway Table 6 7 Static gateway to gateway configuration tasks Configure a VPN Policy Phase 2 IKE negotiation VPN gt VPN Policies Optional Create a static tunnel VPN gt Static Tunnels Define IPsec Security Association Parameters VPN gt Static Tunnels gt IPsec Security Association Define the remote security gateway VPN gt Static Tunnels gt Remote Security Gateway Repeat the previous steps for the remote security gateway Establishing secure VPN connections 75 Configuring gateway to gateway tunnels To add a static gateway to gateway tunnel See Static Tunnels tab field descriptions on page 148 1 2 o N Q UU 10 11 12 13 14 15 16 In the SGMI in the left pane click VPN In the right pane on the Static Tunnels tab under IPsec Security Association in the Tunnel Name text box type a name for the tunnel To edit an existing static tunnel on the VPN Tunnel drop down list select a VPN Tunnel Check Enable VPN Tunnel If you have a multi session PPPoE ISP
174. ield descriptions 0 0 0 cccescscsscscssescscsesscsesecscsescsesececsesscseseescsesecseseeecseeeees 150 Client Tunnels tab field descriptions 0 0 0 ceccccsscssssescscssesesesscsesecscsesecsesececsescsesscecsecscseesecseeees 151 Client Users tab field descriptions cccecccccsesssssscsessssesesscscsesscsesscscsesscsesesecsesscsesecscsesscsesesecsesesees 152 VPN Policies tab field descriptions cccescsecesesesessssesssscecesesesesessssesssseesesesesessssecseseeseseseseseseeseeees 153 VPN Status tab field descriptions cccceccesssssesessssesesssesesesesesessseesseesesesesesesessssseeeeseseseseseeessseseees 154 Advanced tab field descriptions ccccccccccescscsssscsessescsesscsesscecsesscscsesscscsscsesesscsesecscseecacsececseecsesees 155 IDS IPS field descriptions pAn n alison ena arose act ane hea ead 156 IDS Protection tab field descriptions 0 0 0 ceccccccsscscsssscscsscscscecsesecscsesecsessscsesscseseescseesecseeecseseees 156 Advanced tab field descriptions cccccccccsssscsssssscssesescscsesececsesecscsesecsesecscsesecsesecscsececscsecsesenecsesees 157 Antivirus Policy field descriptions Content Filtering field descriptions Joining security gateways to SESA About joining SESA senere a ee Ranson vases eee Aen eee 161 Preparing tO JOIN SESA a adh deectateanc tas ace teed letdeaaus a wed ceeithaad ts aa a a ena aa n en 162 Trusted Certificates E E E E E area en ote aS 162 Joining Symantec Gateway Securi
175. ifically designated for it This option does not support client VPN tunnels terminating at the LAN When a LAN port is set to standard it is not considered part of the VLAN When you select standard VPN traffic is not enforced at the switch that is a trusted private network is assumed SGS Access Point Secured port assignment The SGS Access Point Secured port assignment enforces VPN security at the roaming access point or the switch level This setting is used for connecting Symantec Gateway Security appliances Enforce VPN tunnels port assignment The Enforce VPN tunnels Allow IPsec pass thru port assignment requires a VPN tunnel between a wireless VPN client and the security gateway IPsec traffic is allowed to pass through a subsidiary switch with tunnel termination points located at the primary security gateway and the client To configure port assignments You can set a specific LAN port to use a port assignment or you can restore the default port settings See Port Assignments tab field descriptions on page 127 To configure a port assignment 1 Inthe SGML in the left pane click LAN 52 Configuring internal connections Configuring port assignments 2 Inthe right pane on the Port Assignments tab under Physical LAN Ports from the Port numbers drop down list select a port assignment 3 Click Save The appliance reboots when the port settings are saved To restore port assignment default settings 1 Inthe
176. igh availability load balancing HA LB SMTP binding and failover You can also set optional network settings which identify the appliance to a network Note Models 420 and 440 appliances have one WAN port and do not support high availability load balancing and bandwidth aggregation High availability On dual WAN port appliances you can configure each WAN port to failover to the other in the case of line connection failure You can configure high availability for each WAN port in one of three ways Normal Off or Backup Table 3 4 describes each mode Table 3 4 High availability modes Normal Load balancing settings apply to the port when it is enabled and operational Off WAN port is not used at all 44 Configuring a connection to the outside network Configuring advanced WAN ISP settings Table 3 4 High availability modes Continued Backup WAN port only passes traffic if the other WAN port is not functioning By default WAN1 is set to Normal and WAN2 is set to Off Bandwidth aggregation lets you combine the amount of traffic that goes over WAN1 and WAN2 to increase the amount of bandwidth your clients can use For WAN data transfer data aggregation can provide up to double the WAN throughput depending on traffic characteristics If you To configure high availability See Main Setup tab field descriptions on page 128 1 Inthe SGMI in the left pane click WAN ISP 2 Inthe right pane on the Main
177. igure the security gateway to work as a standard network router to separate different subnets on an internal network Disabling NAT Mode disables the firewall security functions This setting should only be used for intranet deployments where the security gateway is used as a bridge on a protected network When the security gateway is configured for NAT mode it behaves as a 802 1D MAC bridge device To disable NAT Mode See Advanced tab field descriptions on page 143 1 Inthe SGMI in the left pane click Firewall 2 Inthe right pane on the Advanced tab under Optional Security Settings check Disable NAT Mode 3 Click Save Network traffic control 63 Configuring advanced options Blocking ICMP requests Enabling WAN You can configure the security gateway to drop and log any Internet Control Message Protocol ICMP redirect requests received on a WAN interface To block ICMP requests See Advanced tab field descriptions on page 143 1 Inthe SGMI in the left pane click Firewall 2 Inthe right pane on the Advanced tab under Optional Security Settings next to Block ICMP Requests do one of the following m To block ICMP requests click Enable m To allow ICMP requests click Disable 3 Click Save broadcast storm protection Broadcast storm protection protects regular traffic from an overabundance of broadcast traffic For example a condition may exist in which a broadcast message results in many responses ea
178. ime Monitoring lets administrators view the content of applications that are being used A bandwidth conserving technology that reduces traffic by simultaneously delivering a single stream of information to the members of a multicast group Using a multicast router packets sent from a single source are reviewed replicated and sent to all members in the multicast group A method of cloning packets and sending them to a group of computers simultaneously across a network A computer running a program that converts domain names into appropriate IP addresses and vice versa See also DNS A technique that hides a packet s real source or destination address by changing it to different IP address For example a security gateway might change the source IP address of a packet that originates from a protected host to the same IP address as the security gateway s outside interface This results in all external hosts thinking that the packet originated from the security gateway thus effectively hiding the real source host A set of addresses that are designated as replacement addresses for client IP addresses You can use this NAT pool addressing capability to conserve IP addresses resolve address conflicts and create virtual clients A group of computers and associated devices that are connected by communications facilities both hardware and software for the purpose of sharing information and peripheral devices such as printers and modems See als
179. in the left pane click Firewall 2 On the Computer Groups tab under Security Policy on the Computer Group drop down list select the computer group for which you want to enable AVpe 3 Under Antivirus Policy Enforcement check Enable Antivirus Policy Enforcement and then do one of the following m To log warnings for clients with out of date virus definitions click Warn Only To completely block connections from clients with out of date virus definitions click Block Connections 4 Click Save 5 Repeat steps 2 through 4 to enable AVpe for each computer group To enable antivirus policy enforcement for VPN groups 1 Inthe SGMI in the left pane click VPN 2 Inthe right pane on the Client Tunnels tab under Group Tunnel Definition on the VPN Group drop down list select the VPN group for which you want to enable AVpe 3 Under WAN Client Policy check Enable Antivirus Policy Enforcement and then do one of the following m To log warnings for clients with out of date virus definitions click Warn Only To completely block connections from clients with out of date virus definitions click Block Connections 4 Click Save 5 Repeat steps 2 through 4 to enable AVpe for each desired VPN group Advanced network traffic control 85 Monitoring antivirus status Configuring the antivirus clients If the clients on your network are unmanaged and use LiveUpdate to install current virus definitions and engines you must configu
180. information to log in and use your account key password email user name and domain Gather this information before configuring the appliance to use TZO For more information about TZO dynamic DNS go to http www tzo com To use standard service DNS gather the following information m Account information User name which may be different from the account name and password for the dynamic DNS account m Server IP address or resolvable name of the dynamic DNS server For example members dyndns org To configure dynamic DNS For models 420 and 440 you can configure the WAN port to use dynamic DNS For models 460 and 460R you can configure WAN1 WAN2 or both ports to use dynamic DNS See Dynamic DNS tab field descriptions on page 133 See Main Setup tab field descriptions on page 128 To configure TZO dynamic DNS 1 Inthe SGMI in the left pane click WAN ISP 2 On the Dynamic DNS tab under Service Type click TZO 3 Doone of the following m For models 420 and 440 skip to step 4 m For models 460 and 460R in the WAN Port drop down list select the WAN port for which you are configuring TZO 4 Under TZO Dynamic DNS Service do the following m In the Key text box type the key that TZO sent when the account was created m Inthe Email text box type the email address you specified when you created the TZO account m Inthe Domain text box type the domain name that TZO handles For example marketing mysite co
181. ing m Check Enable Dynamic VPN Client Tunnels m Inthe Pre shared Key text box type a key that your dynamic users will enter in their client software In the RADIUS Settings section do the following Primary RADIUS Server Type the IP address or fully qualified domain name of the RADIUS server Secondary RADIUS Server Type the IP address or fully qualified domain name of the RADIUS server that the security gateway uses for authentication should the primary server become unavailable Authentication Port UDP Type the port on the RADIUS server on which the RADIUS service runs Shared Secret or Key Type the RADIUS server key Click Save On the Client Tunnels tab in the VPN Group drop down list select the VPN group to which the users that use extended authentication belong Under Extended User Authentication do the following m Check Enable Extended User Authentication m Inthe RADIUS Group Binding text box type the name of the user s RADIUS group The RADIUS group is assigned to the user on the RADIUS server The RADIUS server must return the value that you type in the RADIUS Group Binding text box in the filterID attribute Click Save 70 Establishing secure VPN connections Configuring gateway to gateway tunnels Viewing the User List The User List section in the Client Users window displays a summary of each static user that is configured on the appliance Table 6 3 defines each field in the summary Table 6 3
182. ino CA 95014 114 Licensing SYMANTEC GATEWAY SECURITY APPLIANCE 300 400 SERIES CLIENT TO GATEWAY VPN ADDITIVE LICENSE AND 8 0 MEDIA KIT 6 Export Regulation Certain Symantec products are subject to export controls by the U S Department of Commerce DOC under the Export Administration Regulations EAR see www bxa doc gov Violation of U S law is strictly prohibited Licensee agrees to comply with the requirements of the EAR and all applicable international national state regional and local laws and regulations including any applicable import and use restrictions Symantec products are currently prohibited for export or re export to Cuba North Korea Iran Iraq Libya Syria and Sudan or to any country subject to applicable trade sanctions Licensee agrees not to export or re export directly or indirectly any product to any country outlined in the EAR nor to any person or entity on the DOC Denied Persons Entities and Unverified Lists the U S Department of State s Debarred List or on the U S Department of Treasury s lists of Specially Designated Nationals Specially Designated Narcotics Traffickers or Specially Designated Terrorists Furthermore Licensee agrees not to export or re export Symantec products to any military entity not approved under the EAR or to any other entity for any military purpose nor will it sell any Symantec product for use in connection with chemical biological or nuclear weapons or missiles c
183. ion Type The following connection types are supported Single WAN port m DHCP Auto IP models Your ISP assigns you an IP address automatically each time you WAN 1 External or connect WAN2 External m PPPoE Point to Point Protocol over Ethernet PPPoE is a specification Dual WAN port for connecting the users on an Ethernet LAN to the Internet models m Analog or ISDN Dial up account m Static IP Your ISP assigns or you have purchased a permanent IP address m PPTP Your ISP uses Point to Point Tunneling Protocol PPTP HA Mode The following high availability modes are available for the WAN Dual WAN port ports models m Normal Load balancing settings apply to the port when it is enabled and operational m Off The WAN port is not used at all m Backup The WAN port only passes traffic if the other WAN port is not functioning Alive Indicator Server URL for a site to which the security gateway sends a PING or echo Dual WAN port request to test for connectivity models If you do not specify a URL the security gateway uses the address of the default gateway Optional Network Host Name Name of the security gateway on the network A default value based Settings on the model number and the MAC address is provided in the Setup Wizard Domain Name Domain name by which external users can access the security gateway For example mysite com MAC Address Physical MAC address of the security gateway Th
184. iptions Table C 27 Dynamic Tunnels field descriptions Continued Local Security Gateway PPPoE Session The default PPPoE session is Session 1 This requires an ISP PPPoE account If you have a single session PPPoE account leave the PPPoE session at Session 1 Local Endpoint Port on the security gateway where you want the tunnel to end Dual WAN port Options include models m WANI m WAN2 ID Type ID type used for ISAKMP negotiation Options include m IP Address m Distinguished Name The default value is IP Address Phase 1 ID The value that corresponds to the ID Type This value is used to identify the security gateway during phase 1 negotiations If you selected IP Address type an IP address If you selected Distinguished Name type a fully qualified domain name If you select IP Address and leave this field blank the default value is the IP address of the security gateway s internal interface The maximum value is 31 alphanumeric characters NetBIOS Broadcast Allows browsing of the VPN network in the Network Neighborhood and file sharing on a Microsoft Windows computer A Windows Internet Naming Service WINS host is needed to accept the traffic NetBIOS broadcast is disabled by default Global Tunnel Normally only requests destined to the network protected by the remote VPN Gateway are forwarded through the VPN Other traffic like Web browsing are forwarded straight to the Internet Enabling Globa
185. irst if it fails the backup mail exchanger supplied by the dynamic DNS service takes its place Mail Exchanger Mail exchangers specify the server that you want to handle email sent to a given domain name For example you have two domains www mysite com and mail mysite com Your Web server is configured to allow browsing to both www mysite com and mysite com You want email that comes to mysite com to be handled by the mail server and not the Web server You set up a mail exchanger to redirect mysite com email to mail mysite com Host names in mail exchangers cannot be CNAMEs You cannot specify your mail exchanger using an IP address Refer to your dynamic DNS service documentation for more information Routing tab field descriptions Use the routing table to configure static or dynamic routing for your security gateway Table C 18 Routing tab field descriptions Dynamic Routing Enable RIP v2 Enables dynamic routing Use this only for intranet or department gateways Table C 18 Field descriptions 135 WAN ISP field descriptions Routing tab field descriptions Continued Static Routes Route Entry Select an entry from the list to edit or delete Destination IP IP address subnet for traffic requiring routing Netmask Netmask used with the destination IP address to set range of IP addresses for traffic requiring routing Gateway IP address of the router to which to send
186. is field lets you verify that Symantec antivirus software is installed and active on a client s workstation Options include m Latest Product Engine default Verifies that Symantec antivirus software is active and that it contains the latest product scan engine mg Any Version Verifies that Symantec antivirus software is active with any qualified version of the product scan engine Note Make sure UDP Port 2967 is allowed by personal firewalls Verify Latest Virus Definitions Lets you verify whether the latest virus definitions are installed on a client s workstation before allowing network access This check box is checked by default Query Clients Every Type an interval in minutes for the security gateway to query client workstations to verify virus definitions For example if you type 10 minutes the security gateway queries the client workstations every 10 minutes to verify that their workstations have the latest virus definitions applied The default setting is 480 minutes 8 hours Table C 36 Field descriptions 157 Content Filtering field descriptions AVpe tab field descriptions Continued AV Master Status AV Master Identifies the antivirus server either primary or secondary for which summary information is displayed Status Indicates the operational status of the antivirus server Up is displayed when the server is online and functional
187. ists Use Deny List Content filtering uses the deny list a list of URLs that clients are not permitted to view allowing all other traffic Use Allow List Content filtering uses the allow list a list of URLs that clients are permitted to view blocking all other traffic This is the default Enable Antivirus Policy Enforcement Requires all users in the selected VPN group to have Symantec antivirus software updated with the most current virus definitions Warn Only A client with non compliant antivirus software or virus definitions is still allowed access A log message warns the administrator that the client is non compliant Block Connections A client with non compliant antivirus software or virus definitions is denied access to the external network The client is allowed access to the Symantec Antivirus CE Server or LiveUpdate server to bring their virus definitions into compliance Client Users tab field descriptions Use the Client Users tab to define the remote users that are permitted to access your network through a VPN tunnel Table C 30 Client Users tab field descriptions VPN User Identity User Select a user to update or delete Enable Enables a VPN tunnel for the specified user To temporarily suspend a user uncheck Enable and then click Update To permanently remove a user click Delete User Name User name for the client user The maximum number of alphanumeric characters for t
188. ity 400 Series WAN ISP functionality lets you configure connections to the outside world This can be the Internet a corporate network or any other external private or public network WAN ISP functionality can also be configured to connect to an internal LAN when the appliance is protecting an internal subnet Configure the WAN connections as soon as you install the appliance You can configure or change the appliance s connectivity on the WAN ports using the Setup Wizard or the WAN ISP windows The Setup Wizard is run automatically the first time you access the appliance after you complete the hardware installation Before you start configuring a WAN connection determine what kind of connection you have to the outside network and based on the connection type gather information to use during the configuration procedure See the Symantec Gateway Security 400 Series Installation Guide for worksheets to help you plan the configuration process Symantec Gateway Security 400 Series models 420 and 440 have one WAN port to configure Models 460 and 460R appliances have two WAN ports that you can configure separately and differently depending on your needs Some settings apply to both WAN ports while other settings apply specifically to WAN1 or WAN2 Warning After you reconfigure WAN connections and restart the appliance network traffic is temporarily interrupted Once the appliance is restarted VPN connections are automatically reestablished
189. ity policies to restrict network access to only those clients who are protected by antivirus software with the most current virus definitions Table C 36 AVpe tab field descriptions Master Location Primary AV Master Defines the primary antivirus server in your network This is the server to which you want the security gateway to connect to verify client virus definitions Secondary AV Master Defines a secondary antivirus server The security gateway connects to this server to verify client virus definitions if it cannot access the primary antivirus server Query AV Master Every Type an interval in minutes for the security gateway to query the antivirus server For example if you type 10 minutes the security gateway queries the antivirus server every 10 minutes to obtain the latest virus definition list The default setting is 10 minutes You must enter a value greater than 0 Query Master This button lets you override the time interval set in the Query AV Server Every field When clicked the security gateway queries the antivirus server for the latest virus definitions Before you click this button enter the primary and secondary AV master IP addresses and then click Save When first enabling AVpe use this button to force the security gateway to connect to the primary or secondary antivirus server to obtain current virus definitions Policy Validation Verify AV Client is Active When enabled th
190. l Tunnel forces all external traffic to the previously defined VPN Gateway This lets the Main office s firewall filter traffic before sending the request to the Internet This provides your remote site with firewall protection from the Main site Destination Networks should be blank with Global Tunnel enabled Enabling Global Tunnel also disables all other SAs since all traffic must be routed through the global tunnel gateway The global tunnel is disabled by default Table C 27 Remote Security Gateway Field descriptions 147 VPN field descriptions Dynamic Tunnels field descriptions Continued Gateway Address IP address or fully qualified domain name of the remote gateway the gateway to which the tunnel will connect The maximum number of alphanumeric characters for this text box is 128 ID Type ID type used for ISAKMP negotiation Options include m IP Address m Distinguished Name The default value is IP Address Phase 1 ID The value that corresponds to the ID Type If you selected IP Address type an IP address If you selected Distinguished Name type a fully qualified domain name The maximum number of alphanumeric characters in this text box is 31 Pre Shared Key Key for authenticating ISAKMP IKF users It authenticates the remote end of the tunnel The pre shared key is between 20 and 64 alphanumeric characters The pre shared key on the remote end of this tunnel must
191. l packets ESP provides integrity authentication and confidentiality to the packet It works between hosts between the host and the security gateway or between security gateways ensuring that data has not been modified in transit If you do not want to use the ESP default you can elect to use only AH AH provides integrity and authentication to the entire IP datagram packet It holds authentication information by computing a cryptographic function for the packets using a secret authentication key When using AH a Data Confidentiality selection is optional If you use AH in your VPN policy and also use a Data Confidentiality Algorithm ESP is applied to the packets as well as AH Data Confidentiality Encryption Options include DES 3DES AES_VERY_STRONG 256 bit keys AES_STRONG 192 bit keys AES 128 bit keys NULL none The Data Confidentiality Algorithm determines the type of encryption method to be used for tunnel data If you have selected an AH Data Integrity Authentication you do not need to select an encryption type The AES options are not supported for IKE SA Lifetime Time in minutes before phase 2 renegotiation of new encryption and authentication keys for the tunnel The default value is 480 minutes 8 hours The maximum value is 2 147 483 647 minutes 152 Field descriptions VPN field descriptions Table C 31 VPN policies field descriptions Continued Data Volume Limit Maximum
192. lect the speed at which you want to connect Dial Type Select the dial type Redial String Type a redial string Initialization String Type an initialization string If you select a modem type other than Other the initialization string is provided If you select Other you must type an initialization string Line Type Select the type of telephone line Dial String Type a dial string Idle Time Out Type the amount of time in minutes after which the connection is closed if idle Click Save After you click Save the appliance restarts Network connectivity is briefly interrupted until the restart completes To enable the backup dial up account 1 2 In the SGMI in the left pane click WAN ISP On the Dial up Backup and Analog ISDN tab under Backup Mode do the following m Check Enable Backup Mode m Inthe Alive Indicator Site IP or URL text box type the IP address or fully qualified domain name of the site to check connectivity Under Modem Settings click Save Controlling your dial up account manually You can force the appliance to connect or disconnect from your dial up account This is helpful for verifying connectivity To manually control the dial up account See Dial up Backup amp Analog ISDN tab field descriptions on page 130 1 In the SGMI in the left pane click WAN ISP 38 Configuring a connection to the outside network Configuring advanced connection settings 2 To connect to the dial
193. lected static tunnel Security Gateway IP address of the remote gateway to which the tunnel is connected Remote Subnet Subnet of the remote gateway to which the tunnel is connected Encryption Method Authentication method for this tunnel Advanced tab field descriptions Field descriptions 153 VPN field descriptions The Advanced tab lets you configure advanced VPN settings for phase 1 negotiation which apply to all clients Table C 33 Advanced tab field descriptions Global VPN Client Settings Local Gateway Phase 1 ID Type Phase 1 ID ISAKMP used by the local gateway for VPN clients Options include m IP Address If you select IP Address leave the Local Gateway Phase 1 ID text box blank m Distinguished Name If you select Distinguished Name in the Local Gateway Phase 1 ID text box type a local gateway Phase 1 ID to be used by all clients Local Gateway Phase 1 ID Value that corresponds to the ID Type If you selected IP address leave this text box blank If you selected Distinguished Name type a fully qualified domain name Any client connected to the security gateway must use this Phase 1 ID when defining a remote gateway endpoint on the client The maximum value is 31 alphanumeric characters VPN Policy VPN policy for VPN client tunnels for phase 2 tunnel negotiation The list shows pre defined Symantec policies and any policies you created on the VPN Policies tab Dyna
194. lectronic transfer of information from a sending device to a receiving device A form of intrusion in which the attack is encoded in seemingly innocuous data It is subsequently executed by a user or other software to actually implement the attack A type of attack in which a user or program takes up all of the system resources by launching a multitude of requests leaving no resources and thereby denying service to other users Typically denial of service attacks are aimed at bandwidth control DES Data Encryption Standard DHCP Dynamic Host Configuration Protocol dial Diffie Hellman DH disabled Glossary 169 A widely used method of data encryption using a private secret key that was judged so difficult to break by the U S government that it was restricted for exportation to other countries There are 72 000 000 000 000 000 72 quadrillion or more possible encryption keys that can be used For each given message the key is chosen at random from among this enormous number of keys Like other private key cryptographic methods both the sender and the receiver must know and use the same private key A method of automatically serving IP addresses and other network settings to receiving hosts that contain a DHCP client This eliminates having to manually assign IP addresses and other settings to hosts on a network Most modern OSs have a DHCP client To initiate a connection using a LAN modem or direct connection regardl
195. lete it as your needs change See Special Applications tab field descriptions on page 141 To configure a special application 1 Inthe SGML in the left pane click Firewall 2 Inthe right pane on the Special Applications tab under Select Applications in the Name text box type a name that represents the application Check Enable On the Outgoing Protocol drop down list select TCP or UDP In the Outgoing Port Range Start text box type the first port number of the port range to listen on In the Outgoing Port Range End text box type the last number of the port range to listen on In the Incoming Port Range Start text box type the first port number in the range to open In the Incoming Port Range End text box type the last port number in the range to open Click Add oOo ON DOD UH A U To update an existing special application 1 Inthe SGMI in the left pane click Firewall 2 Inthe right pane on the Special Application tab in the Special Application drop down list select an existing special application 3 Make the changes to the special applications fields 4 Click Update To delete an special application 1 Inthe SGML in the left pane click Firewall 2 Inthe right pane on the Special Applications tab on the Application drop down list select an existing special application 3 Click Delete 62 Network traffic control Configuring advanced options Configuring advanced options Symantec Gateway Securi
196. ling your ISP or Symantec Technical Support Accessing troubleshooting information Use the following procedure to access troubleshooting information from the Symantec Knowledge Base To access troubleshooting information 1 Goto www symantec com 2 Onthe top of the home page click support 3 Under Product Support gt enterprise click Continue 4 On the Support enterprise page under Technical Support click knowledge base 5 Under select a knowledge base scroll down and click Symantec Gateway Security 400 Series Troubleshooting 109 Accessing troubleshooting information 6 Click your specific product name and model 7 On the knowledge base page for your appliance model do any of the following On the Hot Topics tab click any of the items in the list to view a detailed list of knowledge base articles on that topic On the Search tab in the text box type a string containing your question Use the drop down list to determine how the search is performed and click Search On the Browse tab expand a heading to see knowledge base articles related to that topic 110 Troubleshooting Accessing troubleshooting information Appendix Licensing This chapter includes the following topics m SYMANTEC GATEWAY SECURITY APPLIANCE 300 400 SERIES LICENSE AND WARRANTY AGREEMENT m SYMANTEC GATEWAY SECURITY APPLIANCE 300 400 SERIES CLIENT TO GATEWAY VPN ADDITIVE LICENSE AND 8 0 MEDIA KIT SYMANTEC GATEWAY SECURITY
197. lowing information m The Connection type column correlates to the option button you click on the Main Setup tab or in the Setup Wizard m The Services column defines the types of accounts or protocols that are associated with the connection type m The Network termination types column lists the physical devices that a particular connection type typically uses to connect to the Internet or a network Once you have determined your specific type of connection refer to the appropriate configuration section later in this chapter Note Connect only RJ 45 cables to the WAN ports Table 3 2 Dial up connection types Analog or ISDN Plain Old Telephone Service Analog dial up modem POTS Integrated Services Digital Digital dial up modem Network ISDN An ISDN modem is sometimes called a terminal adaptor If you have a dedicated account refer to Table 3 3 to determine which connection type you have Table 3 3 Dedicated connection types a ee eee DHCP Broadband cable Cable modem Digital Subscriber Line DSL DSL modem with Ethernet cable Direct Ethernet connection Ethernet Cable usually an enclave network PPPoE PPPoE ADSL modem with Ethernet cable Static IP StaticIP amp Broadband cable Cable modem DNS Digital Subscriber Line DSL DSL modem T1 Channel Service Unit Digital Service Unit CSU DSU Direct Ethernet connection Ethernet cable usually an enclave network PPTP PPTP DSL modem with Ethern
198. m 5 Click Save Configuring a connection to the outside network 41 Configuring dynamic DNS To configure standard service DNS 1 Inthe SGMI in the left pane click WAN ISP 2 Onthe Dynamic DNS tab under Service Type click Standard 3 Doone of the following m For models 420 and 440 skip to step 4 m For models 460 and 460R in the WAN Port drop down list select the WAN port for which you are configuring dynamic DNS 4 Under Standard Service do the following User Name Type the dynamic DNS account user name Password Type the dynamic DNS account password Verify Password Retype the dynamic DNS account password Server Type the IP address or DNS resolvable name for the dynamic DNS server Host Name Type the host name that you want to use 5 Optionally under Standard Optional Settings do the following m To access your network with yourhost yourdomain com where is a CNAME like FTP or www yourhost is the host name and yourdomain com is your domain name check Wildcards m To use a backup mail exchanger check Backup MX m Inthe Mail Exchanger text box type the domain name of the mail exchanger 6 Click Save Forcing dynamic DNS updates When you force a dynamic DNS update the appliance sends its current IP address host name and domain to the service Do this only if requested by Symantec Technical Support For models 420 and 440 you can force a dynamic DNS update for the WAN port For models 460 and 460R
199. m To filter content based on the allow list click Use Allow List Click Save To enable content filtering for a VPN group See Client Tunnels tab field descriptions on page 149 1 2 In the left pane click VPN On the Client tunnels tab under Group Tunnel Definition in the VPN Group drop down list select the VPN group for which you want to enable content filtering Under WAN Client Policy check Enable Content Filtering and do one of the following m To filter content based on the deny list click Use Deny List m To filter content based on the allow list click Use Allow List Click Save Monitoring content filtering Content filtering logs a message in the log files if packets are dropped due to a user attempting to access a URL on the deny list or attempting to access a URL that is not specifically permitted on the allow list See Logging monitoring and updates on page 93 You can view the URLs and their status that are on either the allow or deny list To view a list of URLs on the allow or deny list See Content Filtering field descriptions on page 157 1 2 In the left pane click Content Filtering Under Select List under List Type do one of the following m To view the URLs on the Deny list click Deny m To view the URLs on the Allow list click Allow Click View Edit Chapter Preventing attacks This chapter includes the following topics m Intrusion detection and intrusion
200. mantec Gateway Security 400 Series functionality is described in the following manuals m Symantec Gateway Security 400 Series Administrator s Guide The guide you are reading describes how to configure the firewall VPN AntiVirus policy enforcement AVpe content filtering IDS IPS LiveUpdate and all other features of the security gateway appliance It is provided in PDF format on the Symantec Gateway Security 400 Series software CD ROM m Symantec Gateway Security 400 Series Installation Guide This guide describes in detail how to install the security gateway appliance and run the Setup Wizard to get connectivity m Symantec Gateway Security 400 Series Quick Start Card This card provides abbreviated instructions for installing your appliance m Symantec Gateway Security 400 Series Getting Started Guide This guide lists the tasks that you need to perform after installing the appliance m Symantec Gateway Security 400 Series Release Notes This document provides a summary of new and changed product features system requirements and issues and workarounds m Symantec Gateway Security 300 400 Series Wireless Implementation Guide This guide describes how to install and configure the wireless LAN card in the appliance to create a secure WLAN Symantec Gateway Security 300 400 Series Wireless Release Notes This document provides a summary of new and changed product features system requirements and issues and workar
201. match this value Remote Subnet IP IP address of the remote subnet Mask Mask of the remote subnet 148 Field descriptions VPN field descriptions Static Tunnels tab field descriptions The Static Tunnels tab lets you configure static Gateway to Gateway VPN tunnels for the security gateway Table C 28 Static Tunnel tab field descriptions IPSec Security Association VPN Tunnel Select a tunnel to update or delete Tunnel Name Name of the static tunnel This name is only used for reference within the SGMI The maximum tunnel name is 50 characters You can create up to 50 static tunnels Enable VPN Tunnel Enable the tunnel you are defining so that it can be used by remote VPN users To temporarily disable the tunnel uncheck this box and then click Update To permanently disable the tunnel click Delete PPPoE Session This requires an ISP PPPoE account The default PPPoE session is Session 1 If you have a single session PPPoE account leave the PPPoE session at Session 1 Local Endpoint The port on the security gateway where you want the tunnel to end Dual WAN port models Incoming SPI Incoming security parameter index SPI on the IPSec packet This value must match the outgoing SPI on the remote end of the tunnel The default value is a decimal number Prepend the value with Ox for hex numbers This number between 257 and 8192 identifies the tunnel Outgoing SPI Out
202. me They can have their own applications installed and their own hard disks 3 A type of computer that requires a significant amount of computing power and is capable of producing high quality graphics A special type of virus A worm does not attach itself to other programs like a traditional virus but creates copies of itself which create even more copies An application on the Internet that allows for the exchange of documents formatted in Hypertext Markup Language HTML which facilitates text graphics and layout As the World Wide Web has grown in popularity its capabilities have expanded to include the exchange of video audio animation and other specialized documents The World Wide Web is also a system of Internet servers that support specially formatted documents Another important aspect of the World Wide Web is the inclusion of hypertext links that allow users to click links and quickly navigate to other related sites 180 Glossary Numerics 3DES 74 A administration password 18 Administration settings 17 Advanced Management 122 Basic Management 18 20 121 LiveUpdate 98 101 124 SNMP 95 123 Trusted Certificates 123 administrative access 18 Advanced connection settings 38 Advanced Firewall tab 62 63 143 Advanced IDS and IPS tab 91 155 Advanced Management tab 122 advanced options 62 advanced protection settings 91 Advanced VPN tab 69 79 153 Advanced WAN ISP tab 39 44 136 AES 128 74 AES 192 74 AES 256 7
203. mic VPN Client Settings Enable Dynamic VPN Client Tunnels Lets undefined VPN clients connect to the security gateway for extended authentication Pre shared Key Key for authenticating ISAKMP IKF It authenticates the remote end of the tunnel The pre shared key is between 20 and 64 alphanumeric characters The pre shared key on the remote end of this tunnel must match this value Global IKE Settings Phase 1 Rekey SA Lifetime Time in minutes before phase 1 renegotiation of new encryption and authentication keys for the tunnel The default value is 1080 minutes The maximum value is 2 147 483 647 minutes RADIUS Settings Primary RADIUS Server IP address or fully qualified domain name of the server used to process extended authentication exchanges with VPN clients The maximum values is 128 alphanumeric characters Secondary RADIUS Server IP address or fully qualified domain name of the alternate server used to process extended authentication exchanges with VPN clients The maximum values is 128 alphanumeric characters Authentication Port UDP Port on the RADIUS server used for authentication The default value is 1812 The maximum value is 65535 Shared Secret or Key Authentication key used between the RADIUS server and the appliance The maximum value is 50 alphanumeric characters 154 Field descriptions IDS IPS field descriptions IDS IPS field descripti
204. ministrators can assist you in joining SESA 160 Joining security gateways to SESA Preparing to join SESA Preparing to join SESA Before you join a security gateway to SESA you must ensure that the required software is installed and configured m On the SESA Manager install the Symantec Advanced Manager for both configuration management and event management and the Symantec Event Manager for event management only m Ensure that the security gateways that you want to manage or from which you want to collect events are installed m Configure your security gateway At a minimum you must run the Setup Wizard to complete the initial setup of your WAN connectivity m Back up your local configuration See Backing up and restoring configurations on page 103 Trusted certificates Note If you are planning to join SESA using self signed certificates the default you can skip to See Joining Symantec Gateway Security 400 Series to SESA on page 161 If you plan to use certificates signed by someone else you must perform the following procedures SESA integration requires Public Key Infrastructure PKI services SESA requires X 509 v3 certificate validation as part of the SSL transport mechanism SSL provides data integrity and data confidentiality of SESA traffic By default the SESA Manager runs with a self signed anonymous certificate You can configure SESA to use a certificate signed by a Certificate Authori
205. ms automatically synchronize to the highest data transfer rate that both modems can support pcAnywhere uses the asynchronous communications standard for personal computer serial communications A data transmission scheme in which data and control bits are sent in a 1 bit wide data path sequentially over a single transmission line See also RS 232 C standard A location for sending and receiving serial data transmissions Also known as a communications port or COM port DOS references these ports by the names COM1 COM2 COM3 and COM4 The transmission of discrete signals one after the other In communications and data transfer serial transmission involves sending information over a single wire one bit at a time This is the method used in modem to modem communications over telephone lines Hardware or software that provides services to other computers known as clients that request specific services Common examples are Web servers and mail servers An agreement between the party providing incident response and the party being protected Service level agreements include time allotments for the contain eradicate recover and follow up phases of incident response Refers to different types of network resources like Web FTP and SMTP Services are defined by their port number and protocol type TCP UDP ICMP For example the Web HTTP service uses the TCP protocol over port 80 176 Glossary SESA Symantec Enterprise Security Architec
206. n computers by means of a device such as a modem or cable A modem network interface card or other hardware component that enables remote communications and data transfer between computers Also called connection device The time during which two computers maintain a connection and usually are engaged in transferring information A defined entity on the LAN or WLAN that firewall rules and security policies are applied to Not necessarily a PC a computer can be any Ethernet enabled device like a printer or scanner See also computer group A group of LAN or WLAN Ethernet devices that firewall rules and security policies are applied to For example all local printers may be in a computer group that has all outbound Internet communication blocked See also computer A collection of settings that a software feature uses The use of content based filters that are applied to traffic passing through a security gateway You can filter content based on protocol type subject matter MIME types URLs and filename extensions The speed at which information is moved from one location to another Data rates are commonly measured in kilobits thousand bits megabits million bits and megabytes million bytes per second Modems for example are generally measured in kilobits per second Kbps See also bandwidth bps The movement of information from one location to another The transfer speed is called the data rate or data transfer rate The e
207. n use the DOS TFTP command with the i binary option This transfers the firmware file to the appliance applies it and then restarts the appliance Flashing the firmware Before you perform a manual firmware upgrade ensure you have the following items m symcftpw utility Located on the Tools folder on the CD ROM included with your appliance You may also use the TFTP command to put firmware on the appliance m Firmware file Download the latest firmware file from Symantec s Web site Note If the computer on which you run symcftpw has Norton Internet Security installed you must configure both an inbound rule and an outbound rule in Norton Internet Security to permit the traffic between the computer and the appliance Figure 9 2 shows the rear panel on models 420 and 440 This figure is for reference only the full description of each feature is available in the Symantec Gateway Security 400 Series Installation Guide Figure 9 2 Models 420 and 440 rear panel Logging monitoring and updates 101 Updating firmware Figure 9 3 shows the rear panel of models 460 and 460R This figure is for reference only the full description of each feature is available in the Symantec Gateway Security 400 Series Installation Guide Figure 9 3 Models 460 and 460R rear panel c 2 MoUUUUDUDU DU mENOO E A 4 a fe Eo OO To flash the firmware To turn off the power press the pow
208. nced PPP settings 39 advanced protection settings 91 advanced WAN ISP settings 43 appliance as DHCP server 50 AVpe 82 client to gateway tunnels 76 computers 54 connection to the outside network 23 connectivity 30 dial up accounts 36 dynamic gateway to gateway tunnels 72 exposed host 64 failover 45 gateway to gateway tunnels 70 182 Index idle renew 38 internal connections 49 log preferences 93 Maximum Transmission Unit MTU 39 new computers 54 password 19 port assignments 51 PPTP 34 remote management 19 routing 42 special applications 60 static route entries 42 WAN port 28 configuring LAN IP settings 49 connecting manually PPPoE 32 connecting to serial port 18 21 connection to the outside network 23 connection types analog 29 broadband 29 DHCP 29 ISDN 29 PPPoE 29 PPTP 29 static IP 29 understanding 29 connections network examples 24 connectivity configuring 30 content filtering 86 allow list 86 deny lists 86 LAN 87 managing lists 87 overview 10 WAN 79 Content Filtering settings 17 87 88 157 creating custom phase 2 VPN policies 67 security policies 66 D default settings restore port assignment 52 defining computer group membership 54 inbound access 56 outbound access 57 deny list 86 DES 74 DHCP 29 connections 29 Force Renew 136 usage 51 DHCP server 50 DHCP settings advanced settings 38 dial up accounts 35 backup 37 back up account 35 configuring 36 connecting m
209. ncludes the following topics m Managing logging m Updating firmware m Backing up and restoring configurations m Interpreting LEDs m LiveUpdate and firmware upgrade LED sequences Managing logging The firewall IDS IPS VPN content filtering and AVpe features log messages when certain events occur You can configure the events that are logged so you view only the log messages of interest You can view the log messages through the SGMI or forward them to external services Log messages are maintained until the appliance is restarted On all appliances the 100 most current messages are available to view and are maintained even if the appliance is restarted When the log is full new entries overwrite the oldest ones You should set up either email forwarding or a Syslog server if you want to retain old log messages See Emailing log messages on page 93 or Using Syslog on page 94 Configuring log preferences Logging preferences let you set the way in which log messages are viewed the amount of logging that is performed and how to log files are handled when the log becomes full The following settings help you create logging scenarios that are appropriate to your network s needs m Emailing log messages m Using Syslog Configuring and verifying SNMP m Selecting logging levels m Setting log times Emailing log messages You can configure the appliance to automatically email log entries when the log is full or
210. nd Group 4 You cannot add delete or rename computer groups Before you create inbound and outbound rules to govern traffic perform the following tasks in this order m Define the computer groups See Defining computer groups on page 55 m Define computers behind the appliance and assign them to computer groups See Defining computer group membership on page 54 Defining computer group membership Defining computers is the first step in configuring the firewall component of the appliance When creating your security policy leave the largest group of hosts in the Everyone computer group to minimize the input and management of MAC addresses By default all hosts belong to the Everyone computer group until you configure them to belong to one of the four other computer groups Review your security policy to determine how many computer groups you need if any and which users should be assigned to each computer group The Computers tab lets you identify each computer by typing its MAC address assigning a static IP address assigning it to a computer group and binding it to a PPPoE session if your ISP offers multiple PPPoE sessions See PPPoE on page 30 Note To find the MAC address of a Microsoft Windows based computer at a DOS prompt type ipconfig all and look for the physical address On models 460 and 460R you can restrict the computer to use only one of the WAN ports This is useful if you have two
211. nect to the SGMI locally 1 Browse to the LAN IP address of the appliance The default appliance LAN IP address is 192 168 0 1 2 On your keyboard press Enter The SGMI window displays see Figure 2 1 16 Administering the security gateway Navigating the user interface To connect to the SGMI remotely 1 Browse to the appliance s WAN port IP address followed by port 8088 for example http 206 7 7 14 8088 On your keyboard press Enter The SGMI window displays see Figure 2 1 If this is the first time you have connected the Setup Wizard runs automatically Navigating the user interface Once you familiarize yourself with the basic structure of the user interface you can create configurations view security gateway status and access system event logs The SGMI shown in Figure 2 1 includes the following controls Left pane main menu options Right pane menu tabs Right pane content Command buttons bottom Online Help button Online help is available for each tab when you click the blue circle with a question mark in the top right corner of each screen The main menu items are located in the left pane of the window at all times Figure 2 1 SGMI controls Left pane main menu options Right pane menu tabs Online help button Security Gateway Management Interface Microsoft Internet Explorer Logging Monitoring Management Management LAN Administration Password WAN ISP The administration
212. new 38 IDS and IPS overview 10 IDS and IPS settings 17 Advanced 91 155 IDS Protection 90 154 IDS Protection tab 90 154 IKE tunnels gateway to gateway tunnels 72 inbound rules 56 Inbound Rules tab 56 Inbound Ruls tab 139 internal connections 49 intrusion attempt Bonk 89 Fawx 89 HTML buffer overflow 90 Jolt 89 Land 89 Nestea 89 Newtear 89 Overdrop 89 Ping of Death 89 Syndrop 89 TCP UDP flood protection 90 Teardrop 90 Trojan horse 90 Winnuke 90 IP spoofing protection 91 IPsec pass thru 63 127 143 ISDN connections 29 J Join SESA 159 162 event management 163 gathering connection information 161 options 161 preparation 160 returning to local management 164 tasks performed 159 troubleshooting 164 Jolt 89 K key features 9 Index 183 L LAN IP amp DHCP tab 49 50 125 LAN IP address 49 LAN IP settings 49 LAN settings 17 LAN IP amp DHCP 49 50 125 Port Assignments 51 127 Land 89 LB See load balancing LEDs 105 Licensing 111 LiveUpdate 101 overview 10 server 98 updates 98 LiveUpdate tab 98 101 124 load balancing 44 log messages 96 log messages email forwarding 93 log preferences 93 Log Settings tab 94 95 Logging Monitoring settings 17 Log Settings 94 95 Status 118 Troubleshooting 121 View Log 96 119 MAC cloning 46 MAC masking 46 Main menu 16 Main Setup tab 30 31 34 36 128 managing administrative access 18 content filtering lists 87 using the serial console 21 manual dial up
213. nfiguration to verify that the correct version of a supported Symantec antivirus product is installed on the client s workstation 84 Advanced network traffic control Configuring AVpe Enabling AVpe 7 Toenable the appliance to validate whether a client is using the latest virus definitions check Verify Latest Virus Definitions 8 Inthe Query Clients Every text box type an interval in minutes for the appliance to query clients to validate whether they are using updated virus definitions 9 Click Save AVpe is enforced at the computer group and VPN group level To enable AVpe you first select a group and then enable AVpe once for all members of that group You also decide whether you want to warn or to deny WAN access to clients if their antivirus configuration is not compliant with expected security policies To enable AVpe After you have configured AVpe you must enable it for each computer group or VPN group Enabling AVpe for VPN groups is for WAN clients only You enable AVpe for LAN VPN clients on the Client Tunnels tab in the VPN section You enable AVpe for computer groups on the Computer Groups tab in the Firewall section See Defining computer groups on page 55 See Defining client VPN tunnels on page 78 See Computer Groups tab field descriptions on page 138 See Client Tunnels tab field descriptions on page 149 To enable antivirus policy enforcement for computer groups 1 Inthe SGMI
214. nitoring of network devices and their functions The instructions for the computer to perform a particular task A series of instructions that performs a particular task is called a program Software instructs the hardware of the computer how to handle data to perform a specific task An Authentication Header AH SPI number between 1 and 65535 that you assign to each tunnel endpoint when using AH in a VPN policy The act of establishing a connection with a forged sender address This normally involves exploiting a trust relationship that exists between source and destination addresses or systems A protocol that allows mutual authentication between a client and server and the establishment of an authenticated and encrypted connection thus ensuring the secure transmission of information over the Internet A VPN tunnel that has manually entered authentication and encryption keys These keys do not change or get re keyed automatically as in an IKE based VPN tunnel subnet address subnet entity suffix switched line Symantec management console SYN attack synchronous transmission SYSLOG SYStem LOG protocol system task TCP Transmission Control Protocol TCP IP Transmission Control Protocol Internet Protocol Telnet TFTP threshold time out Trojan horse Glossary 177 A portion of an IP address that is used to poll all 254 nodes on a designated network for pcAnywhere hosts For example an entry of 12
215. nnels cccccscesssesessssssssssesecesesesesesessessssesssesesssesessseeessesseseseseneeeees 72 Understanding gateway to gateway tunnels ssssssnsssesesesesestseseseseseesesesetrssststsssstsesssnenesesesnesesene 72 Configuring dynamic gateway to gateway tunnels cccccsesesesesesesseseeeseceseseseseseeeeseseeeseseseseseeeees 74 Configuring static gateway to gateway tunnels 0 0 cceesescsesesesesessessssceeesesesesessseeeesessseseseseseseeeees 75 Sharing information with the remote gateway administrator ccccecsesssssssseseeeeeeseesesesetseeeeees 77 Configuring client to gateway VPN tunnels ececesscseseseseseseesesesesesececesesesesesesesssseeeseaeseseseseseseseaeeeeees 78 Chapter 7 Chapter 8 Chapter 9 Appendix A Appendix B Appendix C Contents Understanding Client to Gateway VPN tunnels 00 eeeseseseseseseseeeeeesececeseeeseecseeeeceeeterseeeaeseneeeeenees Defining client VPN tunnels Configuring global policy settings for client to gateway VPN tunnels Sharing information with your Clients cccccsesssssssesesessssssesssscssesesesesessssssssesesesesesesesessseneeeeseseeesens Monitoring VPN tunnel Status cisco reae esei ae aia aE ES O EE EE TE Ee Advanced network traffic control How antivirus policy enforcement AVpe works ccccsesssesssesesesesesesseseseceseseseseseseesesesseeseseseseseseseeesesee 83 Before you configure AVpe Configuring AVpe oo Enablinig AV Parer
216. nt VPN LAN Symantec Gateway Security 400 Series Symantec Client VPN LAN Symantec Client VPN WAN Symantec Client VPN LAN In this diagram a client establishes a tunnel remotely through the WAN and three internal clients establish a tunnel internally through the LAN For each VPN group you can define network settings to download to the client during Phase 1 configuration mode The settings include the primary and secondary DNS servers the WINS servers and the primary domain controller By pushing this information to the clients during configuration mode each client will not have to configure them individually saving management time and reducing the possibility of error For LAN side VPN client tunnels the only subnet that the client can access is the one defined on the LAN IP screen See Configuring LAN IP settings on page 49 Symantec client to gateway VPN tunnels require a client ID and a shared key You can also apply extended authentication using a RADIUS server to client to gateway VPN tunnels for additional authentication See Defining users on page 69 You can configure two types of client to gateway users when configuring VPN tunnels dynamic and static See Identifying users on page 68 Understanding global tunnels When a client establishes a VPN tunnel on the LAN a global tunnel 0 0 0 0 is configured for the client This forces all client traffic through the VPN tunnel terminating at
217. nterface through which you can monitor and organize a large number of security gateways along with other SESA compliant products Advanced management through SESA lets you manage both policies and location settings of connected security gateways in addition to collecting events from those systems SESA management also provides scalable management by allowing multiple security gateways to share common policies and location settings SESA management provides many features important to centralized and scalable management including Logical grouping of security gateways into organizational units m Management of multiple configurations m Sharing of configurations across security gateways m Validation of multiple configurations in a single action Distribution of configurations to many security gateways in a single action The Symantec Advanced Manager also includes the Symantec Event Manager for Security Gateways Group 2 v2 1 product described in the next section for centralized event logging alerting and reporting Symantec Event Manager for Security Gateways Group 2 v2 1 Symantec Event Manager for Security Gateways is a standards based software security solution that provides centralized logging alerting and reporting across Symantec s security gateway protection solutions and select third party products Symantec Event Manager delivers security information to the SESA DataStore letting you see a centralized consistent view of
218. nternet A unique number that identifies a workstation on a network and specifies routing information Each workstation on a network must be assigned a unique IP address which consists of the network ID plus a unique host ID assigned by the network administrator This address is usually represented in dotted quad notation with the decimal values separated by a period for example 192 168 0 1 An attack method by which IP packets are sent with a false source address which may try to circumvent security gateways by adopting the IP address of a trusted source This fools the security gateway into thinking that the packets from the attacker are actually from a trusted source IP spoofing can also be used simply to hide the true origin of an attack A standard for security at the network or packet processing layer of network communication IPSec provides two choices of security service Authentication Header AH which essentially allows authentication of the sender of data and Encapsulating Security Payload ESP which supports both the authentication of the sender and encryption of data as well IPSec is widely used with virtual private networks See also IKE A high speed digital high bandwidth telephone line that allows simultaneous voice and data transmission over the same line ISDN is one of the always on or dedicated class of connections An organization or company that provides dial up or other access to the Internet usually for money
219. nts to the Software that the Licensor may furnish to You Except as may be modified by a Symantec license certificate license coupon or license key each a License Module which accompanies precedes or follows this license and as may be further defined in the user documentation accompanying the Appliance and or the Software Your rights and obligations with respect to the use of this Software are as follows You may A use the Software solely as part of the Appliance B make copies of the printed documentation which accompanies the Appliance as necessary to support Your authorized use of the Appliance and C after written notice to Symantec and in connection with a transfer of the Appliance transfer the Software on a permanent basis to another person or entity provided that You retain no copies 112 Licensing SYMANTEC GATEWAY SECURITY APPLIANCE 300 400 SERIES LICENSE AND WARRANTY AGREEMENT of the Software Symantec consents to the transfer and the transferee agrees in writing to the terms and conditions of this agreement You may not A sublicense rent or lease any portion of the Software reverse engineer decompile disassemble modify translate make any attempt to discover the source code of the Software or create derivative works from the Software B use if You received the Software distributed on an Appliance containing multiple Symantec products any Symantec software on the Appliance for which You have not r
220. o LAN local area network A type of intrusion detection system that works at the network level by monitoring packets on the network and gauging whether a hacker is attempting to sending a large number of connection requests to a computer on the network indicating an attempt either to break into a system or cause a denial of service attack Unlike other intrusion detection systems a NIDS is able to monitor numerous computers at once The predominant protocol used by computers servers and clients for managing the notes posted on newsgroups NNTP replaced the original Usenet protocol UNIX to UNIX In a network an addressable device that is attached to the network and can recognize process or forward data transmissions A protocol used to synchronize or set the real time clock in a computer or appliance There are numerous publicly available primary and secondary servers in the Internet that are synchronized to the Coordinated Universal Time UTC A cable that enables two computers to communicate without the use of modems A null modem cable accomplishes this by crossing the sending and receiving wires so that the wire used for transmitting by one device is used for receiving by the other and vice versa The state of being connected to the Internet When a user is connected to the Internet the user is said to be online OS operating system outbound rule packet packet sniffing password perfect forward secrecy physical
221. o collect confidential user information or avoid detection A Trojan horse neither replicates nor copies itself but causes damage and compromises the security of an infected computer 178 Glossary tunnel UDP User Datagram Protocol universe entity upload UPS uninterruptible power supply URL Uniform Resource Locator URL blocking user authentication user name virus virus definitions file virus scanner VPN virtual private network VPN group VPN policy WAN wide area network Web attack Web browser Web denial of service A process that lets a company securely use public networks as an alternative to using its own lines for wide area communications See also dynamic tunnel static tunnel global tunnel A connectionless protocol that like TCP runs on top of IP networks Unlike TCP IP UDP provides very few error recovery services offering instead a direct way to send and receive datagrams over an IP network UDP is used primarily for broadcasting messages over a network A permanent security gateway host entity The universe entity is similar to a wildcard and specifies the set of all computers The universe entity s associated IP address is 0 0 0 0 To send a file from one computer to another via modem network or serial cable With a modem based communications link the process generally involves the requesting computer instructing the remote computer to prepare to receive the file
222. of computers sharing the network portion of their host names for example symantec com Domain entities are registered within the Internet community Registered domain entities end with an extension such as com edu or gov or a country code such as jp Japan To transfer data from one computer to another usually over a modem or network Usually refers to the act of transferring a file from the Internet a bulletin board system BBS or an online service to one s own computer See also upload The ability to automatically update a DNS server when an IP address is automatically assigned or changed typically from an ISP using DSL or cable to a network gateway Whenever an assigned IP address changes the domain name www mybranchoffice com for example is immediately updated by the gateway to the new IP address This enables lower cost dynamic IP Internet accounts for services like VPN or server hosting where static IP accounts are either unavailable or cost prohibitive An application that controls the distribution and storage of email messages A status that indicates that a program job policy or scan is available For example if scheduled scans are enabled any scheduled scan will execute when the date and time specified for the scan is reached A method of scrambling or encoding data to prevent unauthorized users from reading or tampering with the data Only those who have access to a password or key can decrypt and use the data The d
223. of the certificate subject Subject Email Email address of certificate subject Not Valid Before First day time of certificate validity Not Valid After Certificate expiration date time Distribution Point Certificate distribution point Sign Algorithm Certificate signature algorithm Serial Number Certificate serial number 16 two digit hex numbers Fingerprint Certificate fingerprint 20 two digit hex numbers LiveUpdate tab field descriptions The LiveUpdate tab lets you configure your connection to a LiveUpdate server and schedule firmware updates for your security gateway Table C 9 LiveUpdate tab field descriptions General Settings LiveUpdate Server IP address or fully qualified domain name of the LiveUpdate server from which to get firmware updates The default address is http liveupdate symantec com Automatic Updates Enable Scheduler Enables the LiveUpdate scheduler This lets you schedule times for the security gateway to automatically check for firmware updates and then apply them Frequency Frequency with which the security gateway checks for updates The start time for the frequency is based on the most recent reboot of the appliance Options include m Daily m Weekly m Bi weekly m Monthly Preferred Time UTC Time in hours and minutes at which the security gateway automatically checks for updates The format is HH MM
224. ol and type 80 for both the listen on port starting and ending port numbers For both the start and end redirect to ports type 8080 Then create and enable an inbound rule for the Web application server that uses WEB 8080 as a service Note Redirection port range sizes must be the same as the listen on port ranges For example if the listen on port range is 21 to 25 the redirection port range must also be four ports 60 Network traffic control Configuring special applications To redirect inbound traffic to the original destination port leave the redirect fields blank Configuring a service Create a service before you add it to an inbound rule Once you create a service you can update or delete it See Services tab field descriptions on page 140 To configure a service 1 Inthe SGMI in the left pane click Firewall 2 On the Services tab under Application Settings in the Name text box type a name for the service that represents the application In the Protocol drop down list select TCP or UDP In the Listen on Port s Start text box type a port number In the Listen on Port s End text box type a port number ao uu A WwW In the Redirect to Port s Start text box type a port number Redirect only applies to inbound rules If you are creating a service for an outbound rule leave the Redirect to Port s text boxes blank To redirect inbound traffic to the original destination port leave the Redire
225. on Start Port First port in the range of incoming ports Listen on End Port Last port in the range of incoming ports Outgoing Protocol Protocol for outgoing packets Redirect to Start Port First port in the range of ports to which to redirect traffic Redirect to End Port Last port in the range of ports to which to redirect traffic Advanced tab field descriptions You configure advanced firewall settings such as IPsec pass thru on the Advanced tab Field descriptions 143 Firewall field descriptions Table C 26 Advanced tab field descriptions Optional Security Settings Enable IDENT Port Disabling the IDENT port closes port 113 it is not open in stealth mode You should enable this setting only if there are problems accessing a server The IDENT port normally contains the security gateway host name or company name information By default the security gateway sets all ports to stealth mode This makes a computer appear invisible outside of the network Some servers such as some email or Microsoft Internet Relay Chat MIRC servers view the IDENT port of the system accessing them Disable NAT Mode Disabling Network Address Translation NAT mode disables the firewall security functions Only use this setting for intranet security gateway deployments where for example the security gateway is used as a bridge on a protected network When the security gateway is configured for
226. on enterprise networks Virtual Private Network VPN technology Symantec Gateway Security 400 Series lets organizations securely extend their network perimeters beyond the security gateway by providing VPN server proxy secured scanning and personal firewall protection using Symantec Client VPN A completely integrated and standards based solution it lets organizations establish safe fast and inexpensive connections enabling new forms of business and secure access to information for authorized partners customers telecommuters and remote offices The security gateway appliance uses VPN tunnels to send encrypted and encapsulated IP packets over public networks securely to another VPN server Antivirus policy enforcement AVpe Symantec Gateway Security 400 Series provides antivirus policy enforcement AVpe at the security gateway Symantec Gateway Security 400 Series acts as an intermediary between Symantec AntiVirus Corporate Edition servers and clients The appliance validates that the clients are up to date with their virus definitions prior to allowing inbound outbound VPN client connections and other outbound traffic Static content filtering Symantec Gateway Security 400 Series supports content filtering for outbound traffic using allow and deny lists controlled by groups of security gateway users When a group is configured to use an allow list the content filtering component filters and drops connection requests sent to a destina
227. on its disk and wait for the transmission to begin See also download A device that lets your computer and firewall equipment run for a short time after a power failure which lets you power the computer or firewall equipment down in an orderly manner A UPS also provides protection in the event of a power surge The standard addressing system for the World Wide Web A URL consists of two parts The first part indicates the protocol to use for example http and the second part specifies the IP address or the domain name and the path where the desired information is located for example www securityfocus com glossary The tracking and denying of user access to undesirable Web sites based on predefined site content See also content filtering A process that verifies a user s identity to ensure that the person requesting access to the private network is in fact that person to whom entry is authorized A form of authentication that is in place to ensure that the user is authorized to use the services being requested The user name also signifies the primary user or users of a particular computer A piece of programming code inserted into other programming to cause some unexpected and for the victim usually undesirable event Viruses are transmitted by programs downloaded from other sites or present on a diskette The source of the file you are downloading or retrieving from a diskette is often unaware of the virus The virus lies dormant un
228. on page 54 You can configure the following properties for a computer group Antivirus policy enforcement See How antivirus policy enforcement AVpe works on page 81 Content filtering See Advanced network traffic control on page 81 m Access control See Defining inbound access on page 56 56 Network traffic control Defining inbound access To define computer groups See Computer Groups tab field descriptions on page 138 1 Inthe left pane click Firewall 2 Inthe right pane on the Computer Groups tab under Security Policy on the Computer Group drop down list select the computer group that you want to configure 3 To enable AVpe Under Antivirus Policy Enforcement check Enable AntiVirus Policy Enforcement and then click one of the following m Warn Only m Block Connections 4 Toenable content filtering check Enable Content Filtering and then select one of the following m Use Allow List m Use Deny List 5 Under Access Control Outbound Rules select one of the following m No restrictions m Block ALL outbound access m Use rules defined in Outbound Rules Screen See Defining outbound access on page 57 6 Click Save Defining inbound access Inbound rules control the type of traffic flowing into application servers on your appliance protected networks The default state for inbound traffic is that all traffic is denied automatically blocked until you configure inbound rules for
229. ons The Symantec Gateway Security 300 400 Series provides intrusion detection and intrusion prevention IDS IPS The IDS IPS functions are enabled by default and provide atomic packet protection with spoof protection and IP You may disable IDS IPS functionality at any time The following types of protection are offered with the IDS IPS feature m IP spoofing protection m IP options verification m TCP flag validation m Trojan horse protection m Port scan detection This section contains the following topics m IDS Protection tab field descriptions m Advanced tab field descriptions IDS Protection tab field descriptions Configure basic IDS protection on the IDS Protection tab Table C 34 IDS Protection tab field descriptions IDS Signatures Name Select a signature to update from the following Back Orifice Bonk Fawx Girlfriend Jolt Land Nestea E E E E E E E m Newtear m Overdrop m Ping of Death m Portal of Doom m SubSeven m Syndrop m Teardrop E Winnuke Asterisk indicates Trojan port detection Block and Warn is disabled if traffic is explicitly allowed in Inbound Rules Protection Settings Block and Warn If an attack is detected blocks the traffic and logs a message Block Don t Warn If an attack is detected blocks the traffic without a logging a message WAN Enables WAN protection WLAN LAN Enables wireless LAN and LAN protection Field descriptions
230. ons Administration field descriptions Table C 5 Basic Management tab field descriptions Continued Remote Management Start IP Address First IP address in the range of addresses that you permit to access the SGMI To delete an IP address enter 0 in each of the text boxes End IP Address Last IP address in the range of addresses that you permit to access the SGMI To delete an IP address enter 0 in each of the text boxes Allow Remote Firmware Upgrade Allows a firmware upgrade from the range of IP addresses Advanced Management tab field descriptions The Advanced Management tab lets you configure your security gateway to be managed by the Symantec Management Console Table C 6 Advanced Management tab field descriptions Centralized Management Management Mode Select one of these management modes m Centralized Monitoring and Policy Management Select this option when joining SESA for Advanced Management m Centralized Monitoring Alerting Logging and Reporting Select this option when joining SESA for Event Management m Standalone Management Manage the appliance locally If this option is selected when you try to join SESA an error is displayed Symantec Enterprise Security Architecture SESA Registration Bind to WAN Port Dual WAN port models The port through which the gateway should connect to the SESA Manager Valid values are WAN 1 or WAN 2 Management Server
231. or a single computer on the LAN when using a single external IP The Special Applications tab works around this limitation by letting you set port triggers The appliance listens for outgoing traffic on a range of ports from computers on the LAN and if it sees traffic it opens an Network traffic control 61 Configuring special applications incoming port range for that computer Once the communication is done the appliance starts listening again so that another computer can trigger the ports to be opened for it Port triggers can be used very quickly milliseconds but for only one computer at a time The speed with which port triggers are used gives the illusion of allowing multiple computers having the same ports opened Special Applications entries work best with applications that require low throughput You may experience reduced performance with multiple computers activating streaming media or a heavy incoming or outgoing volume The appliance only listens for traffic on the LAN The computer on the LAN activates the trigger not traffic from the outside The LAN application must initiate traffic and you must know the ports or range of ports it uses to set up a special applications entry If traffic initiates from the outside you must use an inbound rule Configuring a special application Special applications help with dynamic packet forwarding Configure a special application for two way communication You can then edit it or de
232. ormation only verbally or by other secure means Client ID RADIUS user name Optional 80 Establishing secure VPN connections Monitoring VPN tunnel status Table 6 10 Client configuration information Continued RADIUS shared secret user with extended authentication Optional Phase 1 ID Optional Monitoring VPN tunnel status The VPN Status window lets you view the status for each configured dynamic and static gateway to gateway VPN tunnel The status for static tunnels is either Enabled or Disabled the status for dynamic tunnels is Connected Enabled or Disabled The status for static tunnels is never connected because there is no negotiation for static tunnels The information on the Status window is current when you select it Conditions may change while you are viewing the screen Refresh displays the most current conditions To monitor VPN tunnel status You can monitor tunnel status by verifying both ends of the tunnel and by monitoring the Status window See VPN Status tab field descriptions on page 152 To verify that the tunnel is operational on both ends Froma local host issue a PING command to a computer on the remote network To refresh the information on the Status window Inthe right pane on the Status tab on the bottom of the Status window click Refresh Chapter Advanced network traffic control This chapter includes the following topics How anti
233. ort are only supported for PPPoE connections Configuring a connection to the outside network 31 Configuring connectivity By default all settings are associated with Session 1 For multi session PPPoE accounts configure each session individually If you have multiple PPPoE accounts assign each one to a different session in the SGMI Before configuring the WAN ports to use a PPPoE account gather the following information m User name and password All PPPoE accounts require user names and passwords Get this information from your ISP before configuring PPPoE m Static IP address You may have purchased or are assigned a static IP address for the PPPoE account To configure PPPoE See PPPoE tab field descriptions on page 129 1 Inthe SGML in the left pane click WAN ISP 2 For models 420 and 440 do the following m Inthe right pane on the Main Setup tab under Connection Type click PPPoE m Click Save 3 For models 460 and 460R do the following m Inthe right pane on the Main Setup tab under WAN1 External in the Connection Type drop down list click PPPoE xDSL To use WAN 2 under WAN 2 External under HA Mode click Normal To use WAN2 under WAN2 External in the Connection Type drop down list click PPPoE xDSL On the WAN Port drop down list select a WAN port to configure Click Save 4 Ifyou have a multi session PPPoE account under WAN Port and Sessions on the PPPoE Session drop down list
234. orts the security gateway automatically binds the SMTP server to that WAN port and you do not have to specify the bind information To configure SMTP binding See Advanced tab field descriptions on page 136 1 Inthe SGMI in the left pane click WAN ISP Configuring a connection to the outside network Configuring advanced WAN ISP settings 2 On the Advanced tab under Load Balancing in the Bind SMTP with WAN Port drop down list select a binding option 3 Under DNS Gateway click Save Binding to other protocols You can use the routing functionality of the firewall to bind other traffic You add a static route to route traffic for the IP address of the destination server to a specific WAN port See Configuring routing on page 42 Configuring failover DNS gateway You can configure the appliance to periodically test the connectivity to ensure that your connection is available to your clients After the amount of time that you specify for example 10 seconds the appliance issues a PING command to the URL you specify as the Alive Indicator If you do not specify an Alive Indicator the default gateway is used Note When selecting a URL to check choose a fully qualified domain name or IP address that you are sure will respond to a request or you may receive a false positive when the connection is actually available When the WAN port on model 420 or 440 fails the security gateway fails over to the serial port
235. otocol A code that is required before a telephone number it can be any number of digits For example the number 9 is often required to call out from many office Private Branch eXchange PBX systems Also called shared secret The original key used to encrypt the initial two way authentication exchange before creation encryption and authentication keys in an IKE based VPN tunnel also used in other authentication exchanges Pre shared keys must be known in advance by both parties to complete authentication 174 Glossary primary server private key protocol proxy proxy server public key RADIUS RAM Random Access Memory remote access remote communication remote management reset response revision RIP Routing Information Protocol roaming ROM read only memory router A computer that is running Symantec AntiVirus Corporate Edition Server software that is responsible for configuration and virus definitions files update functions in a server group When you perform a task at the server group level in Symantec System Center the task runs on the primary server The primary server forwards the task to its secondary servers If the primary server is running Alert Management System2 it processes all alerts A part of asymmetric encryption that uses a private key in conjunction with a public key The private key is kept secret while the public key is sent to those with whom a user expects to communica
236. ou have another additional subnet on the LAN side of the Symantec Gateway Security 400 Series security gateway VPN client tunnels to the LAN side of the security gateway are not supported for computers on this separate subnet Only computers residing on the appliance subnet found on the LAN IP screen are supported for LAN WLAN side VPN tunnels You can also create global gateway to gateway tunnels See Understanding global tunnels on page 77 Note Gateway to gateway VPN tunnels are supported on the appliance s WAN ports you cannot define gateway to gateway VPN tunnels on the appliance s LAN or WLAN ports Supported gateway to gateway VPN tunnels The Symantec Gateway Security 400 Series appliance lets you configure two types of gateway to gateway VPN tunnels Dynamic The security gateway comes with a predefined global IKE policy that automatically applies to your IKE Phase 1 negotiations You can change the setting of the SA Lifetime parameter in the Global IKE Policy SA Lifetime specifies the amount of time that the tunnel rekeys in minutes This parameter is located in VPN gt Advanced gt Global IKE Settings Phase 1 Rekey Static Static gateway to gateway configurations require you to manually enter tunnel parameters at each security gateway Both ends must have the same parameters including secret keys security parameter indexes SPIs authentication schemes encryption methods See Configuring gateway to g
237. ounds m Symantec Event Manager and Advanced Manager for Security Gateways Group 2 v2 1 Integration Guide This guide describes how to integrate the Symantec security gateway into the SESA environment m Symantec Event Manager and Advanced Manager for Security Gateways Group 2 v2 1 Administrator s Guide This guide describes how to administer Symantec security gateways from the SESA environment using the Symantec Advanced Manager and Symantec Event Manager products Introducing the Symantec Gateway Security 400 Series 13 Network security best practices Symantec Event Manager and Advanced Manager for Security Gateways Group 2 v2 1 Release Notes This document provides a summary of new and changed product features system requirements and issues and workarounds Network security best practices Symantec encourages all users and administrators to adhere to the following security practices Turn off and remove unneeded services By default many operating systems install auxiliary services that are not critical such as an FTP server Telnet and a Web server These services are avenues of attack If they are removed blended threats have less avenues of attack and you have fewer services to maintain through patch updates If a blended threat exploits one or more network services disable or block access to those services until a patch is applied Turn off unnecessary network services Automatically update your antivir
238. our country then select the enterprise Continue link Customer Service is available to assist with the following types of issues Questions regarding product licensing or serialization Product registration updates such as address or name changes General product information features language availability local dealers Latest information on product updates and upgrades Information on upgrade insurance and maintenance contracts Information on Symantec Value License Program Advice on Symantec s technical support options Nontechnical presales questions Missing or defective CD ROMs or manuals Contents Chapter 1 Chapter 2 Chapter 3 Introducing the Symantec Gateway Security 400 Series About Symantec Gateway Security 400 Series 00 0 ceccccesseseseseeseseeeeseseecescseeecseeesaeseeecseseeseseeeeseeeseeeeeeeaes Key features 2 seccx27 sececcets coats see R cache E sk Abed taste cagsea tte seata tens sachs cesses tes A E Firewall technology ctsccssiseivecssvses esisreccerctisysveeni eet n EEE Virtual Private Network VPN technology cceeeseeseeteeeeeteeeeees Antivirus policy enforcement AVpe Static content filtering cc esesssssesecesesesesesessesssesesceeseseseseeeseeeeees Intrusion detection and intrusion prevention IDS and IPS LiveUpdate support o ceeeccsscscescsscssessescsscsscssssesseecsessscsecscsaesecsscsesacseesscsecaecsesscsscaessesacsessacsecsecaeeaeseeees Managing Symantec Gateway Security 4
239. owing information m Static IP address netmask and default gateway addresses Contact your ISP or IT department for this information m DNS addresses You must specify the IP address for at least one and up to three DNS servers Contact your ISP or IT department for this information You do not need DNS IP address entries for dynamic Internet accounts or accounts where a DHCP server assigns the IP addresses If you have a static IP address with PPPoE configure the appliance for PPPoE To configure static IP See Static IP amp DNS tab field descriptions on page 129 1 Inthe SGMI in the left pane click WAN ISP 2 Inthe right pane on the Main Setup tab under Connection Type click Static IP 3 Click Save 4 For models 420 and 440 do the following m Inthe right pane on the Static IP amp DNS tab under WAN IP in the IP Address text boxes type the desired IP address of the external WAN side of the appliance m Inthe Network Mask text box type the network mask Change this only if required by your ISP m Inthe Default Gateway text box type the IP address of the default security gateway m Inthe Domain Name Servers text boxes type the IP address for at least one and up to three domain name servers m Click Save 5 For models 460 and 460R do the following m Under WAN1 External in the Connection Type drop down list click Static IP m Touse WAN 2 under WAN 2 External under HA Mode click Normal m To u
240. prevention m Setting protection preferences m Enabling advanced protection settings Intrusion detection and intrusion prevention The Symantec Gateway Security 400 Series intrusion detection and intrusion prevention IDS and IPS feature helps secure your network against unwanted intruders and attacks IDS IPS monitors the network for suspicious behavior and lets you respond to detected intrusions in real time IDS IPS functionality is enabled by default but you can disable it using the Security Gateway Management Interface SGMI IDS IPS logging is also enabled by default Any event logged by the IDS engine is identified as such in log messages If you disable IDS and IPS logging the security gateway still blocks any connection attempt to an unauthorized service for inbound connections but the Trojan horse lookup is disabled and log messages are limited to an access denied message The number of log messages that are tracked depends on the attack type There is no limit to the number of logged management login attempts Attack logging is limited to one message in five seconds if more than one occurrence of the same attack is discovered within a five second window only one message is generated When ICMP blocking is enabled the log messages are not limited Atomic packet inspection The IDS engine provides atomic packet inspection by comparing each inbound packet against a list of signatures known attacks Matching packets are considere
241. ptional network settings on each WAN port page 46 Dynamic DNS Applies to both WAN1 and WAN2 See Configuring dynamic DNS on page 40 DNS Gateway Applies to both WAN1 and WAN2 See DNS gateway on page 45 Alive Indicator Configure an alive indicator foreach WAN See Dial up accounts on page 35 or port Configuring advanced WAN ISP settings on page 43 Routing Configure routing for each WAN port See Configuring routing on page 42 WAN port load balancing Set the percentage of traffic you want sent See Load balancing on page 44 and bandwidth aggregation through WAN1 the remainder goes through WAN2 Bind SMTP Bind SMTP to either WAN1 or WAN2 See SMTP binding on page 44 High availability Specify whether high availability is used See High availability on page 43 for each port Configuring a connection to the outside network 29 Understanding connection types Understanding connection types To connect the appliance to an outside or internal network you must understand your connection type First determine if you have a dial up or broadband account Typical dial up accounts are analog through a normal phone line connected to an external modem and ISDN through a special phone line Typical dedicated accounts are broadband cable DSL T1 E1 or T3 connected to a terminal adaptor Table 3 2 and Table 3 3 describe the supported connection types including the fol
242. r masking For models 420 and 440 you configure the settings for the WAN port For models 460 and 460R you can configure the network settings for one or both WAN ports Before you configure optional network settings gather the following information Host name Name of the appliance For example marketing Domain name Name by which you address the appliance over the Internet For example mysite com If the host name is marketing the appliance would be marketing mysite com MAC address Physical address of the WAN of the appliance If you are performing MAC cloning get the MAC address that your ISP is expecting to see rather than the address of the appliance To configure optional network settings See Advanced tab field descriptions on page 136 1 Inthe SGMI in the left pane click WAN ISP 2 For models 420 and 440 do the following m Inthe right pane on the Main Setup tab under Optional Network Settings in the Host Name text box type a host name The host and domain names are case sensitive In the Domain Name text box type domain name for the appliance m Inthe MAC Address text boxes type the WAN network adapter address MAC that you are cloning Configuring a connection to the outside network 47 Configuring advanced WAN ISP settings 3 For models 460 and 460R do the following m To configure WAN1 or WAN 2 in the right pane on the Main Setup tab under Optional Network Settings under WAN External or WAN
243. r wireless interface with a source IP address that does not match any predefined internal network is blocked and logged as an internal IP spoofing attempt Internal networks are derived from static routes on the unit and the internal LAN WLAN address of the unit Spoof protection can be disabled for the internal LANs and WAN To enable IP spoof protection See IDS Protection tab field descriptions on page 154 1 Inthe SGML in the left pane click IDS IPS 2 Inthe right pane on the Advanced tab under IP Spoof Protection check WAN or WLAN LAN 3 Click Save TCP flag validation Certain port mapping tools such as NMAP use invalid TCP flag combinations to detect a firewall on a network or map the security policy implemented on the firewall Symantec Gateway Security 400 Series blocks and logs any traffic with illegal flag combinations for traffic that is not being denied by the security policy Any traffic denied by the security policy that has one or more bad TCP flag combinations is classified as one of several NMAP port scanning techniques NMAP Null Scan NMAP Christmas Scan and so on To enable TCP flag validation See IDS Protection tab field descriptions on page 154 1 Inthe SGML in the left pane click IDS IPS 2 Inthe right pane on the Advanced tab under TCP Flag Validation check Enable 92 Preventing attacks Enabling advanced protection settings Chapter Logging monitoring and updates This chapter i
244. rder of the Symantec Gateway Security 400 IKE proposals Table 6 1 IKE proposal order e Gia i nptane 3DES SHA1 Group 5 3DES MD5 Group 5 3DES SHA1 Group 2 3DES MD5 Group 2 DES SHA1 Group 1 DES MD5 Group 1 Some settings are configurable at a global level for client to gateway tunnels See Configuring global policy settings for client to gateway VPN tunnels on page 79 Establishing secure VPN connections 67 Creating security policies VPN Policies Phase 2 configurable The security gateway includes the following four pre defined configurable VPN policies that apply to Phase 2 tunnel negotiations m Ike_default_crypto m Ike default_crypto_strong m Static_default_crypto m Static_default_crypto_strong Rather than configuring data privacy data integrity and data compression algorithms for each tunnel you create the security gateway lets you configure standard reusable VPN policies and then later associate them with multiple secure tunnels You can select a pre defined policy or you can create your own using the VPN Policies tab VPN policies group together common characteristics for tunnels and allow rapid setup of additional tunnels with the same characteristics The security gateway also includes a handful of commonly used VPN policies for both static and dynamic tunnels You can define more than one VPN policy varying the components you select for each one If you do this ensure that
245. re allowed an eight hour grace period the default LiveUpdate interval on unmanaged clients in which they will still be compliant if they have the last AV policy master definition version After this grace period the clients will be considered non compliant with the AV policy Table 7 1 describes client compliance and the subsequent actions taken Table 7 1 Client compliance actions Compliant with current antivirus Client is granted access to the firewall policies Antivirus protection is out of date The connection is allowed to pass but the appliance logs a warning or completely blocks access depending on the option you select Clients who have been denied access can still connect to Symantec AntiVirus Corporate Edition or Symantec LiveUpdate servers to update their virus definitions You determine whether to enforce antivirus compliance for local clients using computer groups or VPN groups All local clients belong to computer groups For each computer group you enable or disable AVpe The default AVpe status for all computer groups is disabled See Understanding computers and computer groups on page 53 Similarly all VPN users are members of VPN groups For each VPN group you can enable or disable AVpe on the Client Tunnels tab in the SGMI The default AVpe status for all VPN groups is disabled See Defining client VPN tunnels on page 78 If content filtering and antivirus policy enforcement are enabled at the
246. re each client before it can be validated using AVpe Each client that you want to validate with AVpe must have a supported Symantec antivirus product installed in unmanaged mode When you uninstall the client software the registry keys that are created by this procedure are also removed Warning Do not use this procedure for clients managed by a Symantec AntiVirus server To configure the AV clients 1 Install or configure each client s supported Symantec antivirus product in unmanaged mode 2 Insert the Symantec Gateway Security 400 Series product CD into the CD ROM drive on a client computer 3 Inthe Tools folder on the CD ROM copy SGS300_AVpe_client_Activation reg to the client s desktop 4 Double click the file 5 Repeat steps 2 4 for each client that you want to be validated using AVpe Monitoring antivirus status The AV Master Status and AV Client Status sections of the AVpe tab lets you obtain an operational status of the primary and secondary antivirus master and clients configured in your network Any changes you make to the configuration of the primary or secondary antivirus server once saved are reflected in the AV Master Status field Viewing AVpe log messages When you enable AVpe and a client connection is denied either because it is blocked or warned a message is logged You can view these log messages periodically to monitor your traffic To view AVpe log messages See View Log tab field descriptions
247. rect settings or allowing the network administrator to tune the size of the buffer and the time out period A form of data transmission in which information is sent in blocks of bits separated by equal time intervals The sending and receiving devices must first be set to interact with one another at precise intervals then data is sent ina steady stream See also asynchronous transmission A transport mechanism for sending event messages across an IP network The receiving server is known as an event message collector or Syslog server A set of related elements that work together to accomplish a task or provide a service For example a computer system includes both hardware and software A series of steps to be performed on all selected computers For example creating an image file cloning an image file and applying configuration settings are all tasks The protocol in the suite of protocols known as TCP IP that is responsible for breaking down messages into packets for transmission over a TCP IP network such as the Internet Upon arrival at the recipient computer TCP is responsible for recombining the packets in the same order in which they were originally sent and for ensuring that no data from the message has been misplaced in the process of transmission The suite of protocols that lets different computer platforms using different operating systems such as Windows MacOS or UNIX or different software applications communicate Althoug
248. reports that flashing is complete LEDs 2 and 3 stop flashing alternately the appliance has restarted and then LEDs 1 and 3 are illuminated steadily This may take several minutes 10 Turn DIP switches 2 and 4 4 to the off position down Checking firmware update status The Status section shows the date and version of the last firmware update The last update shows the date and time if an NTP service is available of the last LiveUpdate check This check may or may not have resulted in a new firmware version being downloaded depending on whether the appliances firmware is already the most recent version For automatic updates LiveUpdate logs messages for the following events m Successfully downloading the firmware package m Unsuccessfully downloading the firmware package m No new firmware package available every component is current If a LiveUpdate fails because of an HTTP error the failure is logged along with the HTTP error message reported by the HTTP client To check firmware update status It is important to know the version of the firmware on the appliance if you plan to contact Symantec Technical Support See Status tab field descriptions on page 118 To view LiveUpdate firmware package status 1 Inthe SGMI in the left pane click Administration 2 Inthe right pane on the LiveUpdate tab under Status view the date of the last update and the version number To view the current version of the firmware on the
249. restarts Reset to the default configuration The LAN subnet IP address is reset to 191 168 0 0 the LAN IP address of the appliance is reset to 192 168 0 1 the DHCP server functionality is enabled and the administrator s password is reset to blank Reset to the reserved application The firmware resets to the last all bin firmware file that was used to flash the appliance This is either the factory firmware or a firmware upgrade that you downloaded from the Symantec Web site and applied to the appliance Note LiveUpdate does not download and apply all bin firmware upgrades To reset the appliance There are three types of factory reset which you can perform using a combination of the DIP switches and the reset button You must use a paper clip or pen tip to press the reset button Refer to Figure 9 4 and Figure 9 5 for the location of the reset button and DIP switches Figure 9 4 shows the rear panel of models 420 and 440 and Figure 9 5 shows the rear panel of models 460 and 460R These figures are for reference only the full description of each feature is available in the Symantec Gateway Security 400 Series Installation Guide Figure 9 4 Model 420 or 440 rear panel OOO t t ttt tt 0 0 00 Figure 9 5 Model 460 and 460R rear panel 7 I OIOOOOO UO OU im ee O O E d ttt tt Logging monitoring and updates 105 Interpreting LEDs To perform a
250. riate router Static routing sends packets to the router you specify Routing information is maintained in a routing table Dynamic routing is administered using the RIP v2 protocol When it is enabled the appliance listens and sends RIP requests on both the internal LAN and external WAN interfaces RIP v2 updates the routing table based on information from untrusted sources so you should only use dynamic routing for intranet or department gateways where you can rely on trusted routing updates Routing helps the flow of traffic when you have multiple routers on a network Configure dynamic or static routing to fit your needs Enabling dynamic routing You do not need routing information to use dynamic routing To enable dynamic routing See Routing tab field descriptions on page 134 1 Inthe SGMI in the left pane click WAN ISP 2 On the Routing tab under Dynamic Routing check Enable RIP v2 3 Click Save Configuring static route entries Before adding static routing entries to the routing table gather the destination IP netmask and gateway addresses for the router to which you want traffic to be routed Contact your IT department for this information You can add new route entries edit existing entries delete entries or view a table of entries Note If NAT is enabled only six routes display in Routing List When NAT is disabled all configured routes appear in the list To configure static route entries
251. rict access to computers and sensitive files The system compares the code against a stored list of authorized passwords and users If the code is legitimate the system allows access at the security level approved for the owner of the password A method in VPN of creating new short term cryptography keys that cannot be inferred from a compromised long term usually the original pre shared key or previous session key Diffie Hellman is the algorithm used for current PFS implementations See MAC address A program that system administrators and attackers use to determine whether a specific computer is currently online and accessible Pinging works by sending an ICMP packet to the specified IP address and waiting for an ICMP reply if a reply is received the computer is deemed to be online and accessible An infrastructure that enables users of a basically nonsecure public network such as the Internet to exchange data securely and privately through the use of a public and a private cryptographic key pair that is obtained and shared through a trusted authority See VPN policy 1 A hardware location used for passing data into and out of a computing device Personal computers have various types of ports including internal ports for connecting disk drives monitors and keyboards and external ports for connecting modems printers mouse devices and other peripheral devices 2 In TCP IP networks the name given to an endpoint of a logical conn
252. riptions on page 140 To define an outbound rule 1 Inthe SGMI in the left pane click Firewall 2 Inthe right pane on the Outbound Rules tab under Computer Groups in the Computer Group drop down list select a computer group To see a list of rules for the selected computer group click View In the Name text box type a unique name for the outbound rule Check Enable Rule On the Service drop down list select an outbound service Click Add ao wu A U Network traffic control 59 Configuring services To update an existing outbound rule 1 Inthe SGML in the left pane click Firewall 2 Inthe right pane on the Outbound Rules tab under Computer Groups on the Computer Group drop down list select a computer group To see a list of rules for the selected computer group click View 3 Inthe Rule drop down list select an existing outbound rule 4 Make the changes to the outbound rules fields 5 Click Update To delete an outbound rule 1 Inthe SGMI in the left pane click Firewall 2 Inthe right pane on the Outbound Rules tab under Computer Groups in the Computer Group drop down list select a computer group To see a list of rules for the selected computer group click View 3 Inthe right pane on the Outbound Rules tab on the Rule drop down list select an existing outbound rule 4 Click Delete Configuring services You can define additional service applications used in inbound rules and outbound rules
253. rity remote access administration should be done through a VPN tunnel To monitor the appliance on the LAN side browse to the appliance s LAN IP address by default 192 168 0 1 using an SNMP v1 MIB browser To allow external access to SNMP GET on the appliance check Enable Remote Monitoring on the Administration gt SNMP tab in the SGMI Configuring SNMP There are two parts to configuring SNMP Configuring SNMP m Verifying communication between the SNMP server and the Symantec Gateway Security 400 Series appliance Before you begin configuring SNMP collect the following information m For TRAPs you must have SNMP v 1 0 servers or applications running on your network to receive the network event alert messages and you need the SNMP server IP addresses to configure SNMP on the appliance m You also need the community string for the SNMP server The SNMP server IP address and community string should be available from the administrator running the SNMP server m You can configure SNMP at anytime after the appliance is installed and the SNMP servers are running See Administration field descriptions on page 121 To configure SNMP 1 Inthe SGML in the left pane click Administration 2 Inthe right pane on the SNMP tab under SNMP Read only Managers GETS and TRAPS in the Community String text box type the name of the community The default is Public 3 Inthe IP Address text boxes type the IP addresses of the SNMP
254. rop down list select an endpoint for the tunnel On the ID Type drop down list select a Phase 1 ID type In the Phase 1 ID text box type the Phase 1 ID O on OD Under Remote Security Gateway do the following m Inthe Gateway Address text box type the remote gateway address Optionally in the ID Type drop down list select a Phase 1 ID type Optionally in the Phase 1 ID text box type the Phase 1 ID In the Pre Shared Key text box type a key In each Remote Subnet IP text box type the IP address of the destination network When defining a global tunnel to Symantec Enterprise Firewall or Symantec Gateway Security 5400 Series appliance for the remote gateway enter 0 0 0 0 for the remote subnet IP address For global tunnels to another Symantec Gateway Security 400 Series appliance enter 0 0 0 0 for the remote subnet IP address m In each Mask text box type the netmask of the destination network When defining a global tunnel to Symantec Enterprise Firewall or Symantec Gateway Security 5400 Series appliance for the remote gateway enter 0 0 0 0 for the netmask For global tunnels to another Symantec Gateway Security 400 Series appliance enter 255 0 0 0 for the netmask 10 Click Add Configuring static gateway to gateway tunnels Static tunnels do not use any information from the Global IKE Policy Phase 1 negotiation You must manually type all of the information necessary to establish the tunnel However you can define a V
255. same time content filtering takes precedence over antivirus policy enforcement processing for outbound traffic only If a content filtering violation occurs and a client is blocked from viewing content a message is logged and no antivirus policy enforcement rules are processed AVpe is supported for outbound connections and VPN client connections LAN or WAN only configure AVpe Before configuring the AVpe feature do the following m Include your AVpe needs in your strategy for group assignments AVpe is supported for outbound connections and VPN client connections only Determine those clients whose virus definitions will be checked and those if any who will be allowed conditional or unconditional network access Then assign users to the appropriate access or VPN groups and select whether you will warn or block non compliant clients who attempt to access the local network See Defining computer groups on page 55 or Viewing the User List on page 70 Note You must place UNIX Linux clients or clients with a non supported AV client in a computer group where AVpe is disabled m Ifyou plan to use Symantec AntiVirus Corporate Edition servers obtain the name of the primary and optionally the secondary servers used in your network m If your network is comprised of clients that are unmanaged and access LiveUpdate directly for their AV updates decide which client to designate as the master The master should always be turne
256. se WAN 2 under WAN2 External in the Connection Type drop down list click Static IP m Click Save m Inthe right pane on the Static IP amp DNS tab under either WAN 1 IP or WAN2 IP in the IP Address text boxes type the desired IP address of the external WAN side of the appliance m Inthe Network Mask text box type the network mask In the Default Gateway text box type the IP address of the default security gateway The appliance sends any packet it does not know how to route to the default security gateway m Inthe Domain Name Servers text boxes type the IP address for at least one and up to three domain name servers 6 Click Save 34 Configuring a connection to the outside network Configuring connectivity PPTP Point to Point Tunneling Protocol PPTP is a protocol that enables secure data transfer from a client to a server by creating a tunnel over a TCP IP based network Symantec Gateway Security 400 Series appliances act as a PPTP access client PAC when you connect to a PPTP Network Server PNS generally with your ISP Before beginning PPTP configuration gather the following information m PPTP server IP address IP address of the PPTP server at the ISP m Static IP address IP address assigned to your account m Account information User name and password to log in to the account To configure PPTP See PPTP tab field descriptions on page 132 1 Inthe SGMI in the left pane click WAN ISP 2
257. select the appropriate session If you have a single session PPPoE account leave the PPPoE session at Session 1 5 Under Connection check Connect on Demand To connect to a PPPoE session manually uncheck Connect on Demand and then under Manual Control click Connect 6 Inthe Idle Time out text box type the number of minutes of inactivity after which you want the appliance to disconnect from the PPPoE account 7 If you have a static IP PPPoE Internet account in the Static IP Address text box type the IP address Otherwise leave the value at 0 8 Under Choose Service click Query Services You must be disconnected from your PPPoE account to use this feature See Connecting manually to your PPTP account on page 35 9 From the Service drop down list select a PPPoE service You must click Query Services to select a service 10 Inthe User Name text box type your PPPoE account user name 11 Inthe Password text box type your PPPoE account password 12 Inthe Verify Password text box retype your PPPoE account password 13 Click Save 32 Configuring a connection to the outside network Configuring connectivity Verifying PPPoE connectivity Once the appliance is configured to use the PPPoE account verify that it connects correctly To verify connectivity See PPPoE tab field descriptions on page 129 See Status tab field descriptions on page 118 1 Inthe SGMI in the left pane click WAN ISP 2 Inthe rig
258. sers authenticate directly with the security gateway when connecting through a VPN tunnel Static users are defined on the security gateway Client Users tab Users with extended authentication are not defined on the security gateway they are defined on a RADIUS authentication server You must configure the appliance to support remote administration of users with extended authentication Defined users These users authenticate using a client ID user name and pre shared key that you assign to them They enter the user name and password in their client software That information is then sent when they attempt to create a VPN tunnel to the security gateway These users are defined on the appliance and may also use extended authentication Users with extended authentication Users with extended authentication are not defined on the appliance rather they use extended authentication with RADIUS to authenticate their tunnels You define these users on the RADIUS server When a user with extended authentication attempts to authenticate the appliance looks for that user name in the defined users list When it does not find the user there the appliance then uses the shared secret used by the client software This shared secret should match the secret on the Advanced screen for the security gateway to which it is connecting The appliance then starts extended authentication and prompts for whatever information the RADIUS server requires such as a user n
259. seseeessesseseseseaeeeees 64 Enabling the IDENT ports scccscerssevessevccvtsncvastpevenscosecsesna deveneesvcueeateonsdeesenstetvaenenndenevueanuce denen ioeentarnaeeds 64 Disabling NAT Mod n iioi a Eh RE E AE EE a Ea ant 64 Blocking IGMP requests neier aeeie r EE EE AE a E EEE E oraaa 65 Enabling WAN broadcast storm protection e sesssesseesesiseestessestssesrestestrerestenterestestesessesrenrretesrenee 65 Enabling IPsec pass thri meceno an E Eer E E EA EEA EEEE 65 Configuring an exposed host o ccccccccsesessssssssssscesesesesesesessssssssssesssesesesessssesesesseesesesesesesseseseseecseseseaeeeees 66 Establishing secure VPN connections How todse this Chapter AOE EE A E EE E OEE EE EESE 67 Creating security policies oo eeescesssessesesseseseseceseseeseseseesesseesessesesesecaeseecseseeseseeaeseaceseseseeseaeseesesecseseeaeees 68 Understanding VPN Poli ies snien aaie EEE E EE UE E EEEE E a 68 Creating custom Phase 2 VPN policies 00 0 0 ccsssssssceseseseeeeeeeeseseceseseseaeecseeeseceseseseaeaeeeeeeseeeeeaeaeaceeeeees 69 Viewing VPN Policies List ceersicicianenenn e aee ean a E EE E E ERSE 70 Identifying users ccccceeesescssssesssecesesesesescsesssssesesesesesssssssssecesesesessssssssscsassecesesesessssssseeesscseseseseasseesaceeseaees 70 Understanding user types corren raen eres E E EEEO E REE EEEE 70 DESENANT AAEE AE EAE E E SEAE 71 Viewing the User List a a aea A E E PEET E EEE E EE EEE Oa FEE 72 Configuring gateway to gateway tu
260. sion 4 m Session 5 Only select a session if your ISP service includes multiple PPPoE sessions Host List Host Name Name of the host a computer on your internal network Adapter MAC Address Physical address of the host s network interface card NIC usually an Ethernet or wireless card App Server IP address of the application server Computer Group Computer group to which the host is assigned PPPoE Session PPPoE session to which the host is bound Computer Groups tab field descriptions Computer groups help you to group together computers defined on the Computers tab so that you can apply inbound and outbound rules Table C 21 Computer Groups tab field descriptions Security Policy Computer Group Select a computer group to edit or delete Antivirus Policy Enforcement Enable Antivirus Policy Enforcement If you enable AVpe for the selected computer group the security gateway monitors client workstations to determine their compliance with current antivirus software and security policies For each group options include m Warn Only default A client with non compliant virus software or virus definitions is still allowed access A log message warns the administrator that the client is non compliant m Block Connections A client with non compliant virus software or virus definitions is denied access to the external network The client is allowed access to the Symantec Antivirus
261. ssssssesssesscesesesesessscesesecesesesesesessssesesscseseseseseeseeeesseseseaeaees 121 Log Settings tab field descriptions senica E E E EEE EE RERE 122 7 8 Contents Appendix D Glossary Troubleshooting tab field descriptions oo ccceesessssesssscesesesesessssesssssssesesesesesesssesesesessesesesesseeseeees 123 Administration field descriptions 0 cccccccccccssscscsssscscsscsesecscsesecscsscscsesscecsesecsesesecsesecaesecscsececscseeecseaeeees 123 Basic Management tab field descriptions cceccsessssssssssesesececesesesesescsessscesesesesesessesesesseeseseseseees 123 Advanced Management tab field descriptions cccccsesesesesessssesesscesesesesesessesssseeseseseseseseeseeseees 124 SNMP tab field descriptions nesrin reniir ERr E EE AN 125 Trusted Certificates tab field descriptions cccccccccsssscssssescsesscscscescsesececsessesesenscsesenscsesecseaeeees 125 LiveUpdate tab field descriptions LAN field descriptions ccccccscceesesesesseseseeeeeseseseseeees LAN IP amp DHCP tab field descriptions Port Assignments tab field descriptions WAN ISP field descriptions c ccccceeseesesseeeeeeeeeeens Main Setup tab field descriptions Static IP amp DNS tab field descriptions PPPOE tab field descriptions morerei a A E R E A T Dial up Backup amp Analog ISDN tab field descriptions ccccccccesesessesssssecesesesesesesststseeeeeseeeeeees 132 PPTP t
262. st Exposed Host opens all ports so that one computer on a LAN has unrestricted two way communication with Internet servers or users This is useful for hosting games or special server applications All traffic that is not specifically allowed by inbound rules is directed to the exposed host Warning Because of the security risk activate Exposed Host only when required to do so To configure an exposed host See Advanced tab field descriptions on page 143 1 2 3 4 In the left pane click Firewall In the right pane on the Advanced tab under Exposed Host check Enable Exposed Host In the LAN IP Address text boxes type the IP address of the host you want to expose In the Bind with WAN Port drop down list models 460 and 460R only select the WAN port the exposed host is bound to The default is WAN port 1 In the Session drop down list select the session to bind to the exposed host Click Save Chapter Establishing secure VPN connections This chapter includes the following topics m Howto use this chapter m Creating security policies m Identifying users m Configuring gateway to gateway tunnels m Configuring client to gateway VPN tunnels Monitoring VPN tunnel status Virtual Private Networks VPNs let you securely extend the boundaries of your internal network and use insecure communication channels such as the Internet to safely transport sensitive data VPNs let a single user or a remo
263. sted on the face of this Certificate and who have agreed to the terms of the EULA contained in such pack Please read this Certificate By using and installing the Software Licensee indicates its consent to the terms and conditions set forth below IF LICENSEE DOES NOT AGREE TO THESE TERMS THEN SYMANTEC IS UNWILLING TO LICENSE ADDITIONAL COPIES OF THE SOFTWARE TO LICENSEE EXCEPT AS EXPRESSLY SET FORTH IN THIS CERTIFICATE ALL PROVISIONS OF THE EULA WILL BE APPLICABLE FOR ALL RIGHTS GRANTED UNDER THIS CERTIFICATE ANY RIGHT TO RETURN THE SOFTWARE AND ANY RIGHT TO USE THE SOFTWARE ON HOME COMPUTERS THAT MAY BE CONTAINED IN THE EULA SHALL NOT APPLY TO THE RIGHTS GRANTED UNDER THIS CERTIFICATE 1 GRANT OF LICENSE Symantec grants to Licensee a nonexclusive nontransferable license to install and use the quantity of each title of the Software and the related user documentation as are set forth opposite the name of such title on the face of this Certificate solely on the Appliance bearing the serial number set forth on the face of this Certificate under the terms and conditions of the EULA solely for Licensee s own internal business purposes 2 SOFTWARE INSTALLATION AND USE RESTRICTION Licensee may install the Software authorized under section 1 of this Certificate in object code form only from the copy of the Software and user documentation contained in the original media pack of the Software obtained from Licensee s dealer on an unlimited num
264. t This is useful if you have two different ISPs Dual WAN port configured one for each WAN port In this case outgoing email is models sent on the WAN port to which SMTP is bound Outgoing client mail is sent on the WAN port that the client is using and is therefore sent through the ISP connection type that is configured for that port Options include m None either Sends email through either WAN port m WAN1 Binds SMTP to WAN1 m WAN2 Binds SMTP to WAN2 Optional Connection Idle Renew DHCP Number of minutes after which if there is no LAN to WAN or WAN Settings to LAN traffic the security gateway sends a request to renew the DHCP lease To disable this feature type 0 Force Renew Clicking Force Renew sends a request to the ISP to renew the DHCP Single WAN port lease models Renew WAN1 Renew __ Clicking Renew WAN1 or Renew WAN2 sends a request to the ISP to WAN2 renew the DHCP lease for WAN1 or WAN2 Dual WAN port models WAN Port 1 Maximum size in bytes of packets that leave through the WAN port WAN Port 2 you are configuring Dual WAN port The default value is 1500 bytes For PPPoE the default value is 1472 models bytes PPP Settings Echo Request Time out Number of seconds between echo requests Echo Request Retries Number of times that the security gateway sends echo requests DNS Gateway DNS Gateway IP address of a non ISP private or internal DNS gateway to use for name resolution Enable DN
265. t Symantec AntiVirus Corporate Edition involves the following tasks Defining the location of the policy master client and verifying that it has a supported Symantec antivirus client installed and that the virus definitions and the scanning engine on client computers are up to date Enabling AVpe for Computer or VPN Groups See Enabling AVpe on page 84 Configuring the AV clients See Configuring the antivirus clients on page 85 To configure antivirus policy enforcement See Antivirus Policy field descriptions on page 156 1 2 In the SGML in the left pane click Antivirus Policy In the Primary AV Master text box in the right pane under Server Location type the IP address or fully qualified domain name of your primary antivirus server or master client Optionally in the Secondary AV Master text box type the IP address or fully qualified domain name of a backup antivirus server if supported in your environment In the Query AV Master Every text box type an interval in minutes for the appliance to query the antivirus server for updated virus definitions To force a manual update click Query Master Under Policy Validation next to Verify AV Client is Active select one of the following m Latest Product Engine To check a client s antivirus configuration to ensure it uses a supported Symantec antivirus product with the latest product scan engine m Any Version To check a client s antivirus co
266. te The private key is then used to encrypt the data and the corresponding public key is used to decrypt it The risk in this system is that if either party loses the key or the key is stolen the system is broken A set of rules for encoding and decoding data so that messages can be exchanged between computers and so that each computer can fully understand the meaning of the messages On the Internet the exchange of information between different computers is made possible by the suite of protocols known as TCP IP Protocols can be stacked meaning that one transmission can use two or more protocols For example an FTP session uses the FTP protocol to transfer files the TCP protocol to manage connections and the IP protocol to deliver data An application or agent that runs on the security gateway and acts as both a server and client accepting connections from a client and making requests on behalf of the client to the destination server There are many types of proxies each used for specific purposes See also gateway proxy server A server that acts on behalf of one or more other servers usually for screening firewall caching or a combination of these purposes A proxy server sometimes called a gateway is typically used within a company or enterprise to gather all Internet requests forward them out to Internet servers and then receive the responses and in turn forward them to the original requester within the company A part of asymm
267. te network safely access the protected resources of another network Symantec Gateway Security 400 Series appliances support three types of VPN tunnels gateway to gateway client to gateway and wireless client to gateway To configure wireless client to gateway tunnels see the Symantec Gateway Security 300 400 Series Wireless Implementation Guide Securing your network connections using VPN technology is an important step in ensuring the quality and integrity of your data This section describes some key concepts and components you need to understand to configure and use the appliance s VPN feature VPN tunnels can also support dynamic and static gateway to gateway configurations where tunnel parameters are created at each security gateway Both ends must have the same parameters including secret keys security parameter indexes SPIs authentication schemes and encryption methods How to use this chapter Each section begins with an explanation of the feature it is describing such as what a VPN policy is how it works and how you use it If you are an experienced network or IT administrator you may want to proceed directly to the latter half of the section for configuration instructions If you do not have significant network or IT experience or have never configured a security gateway Symantec or otherwise you should read the first half of each section before configuring the feature At the end of Configuring gateway to gatew
268. tec will refund to You the F O B price paid by You for the defective Appliance Defective Appliances returned to Symantec will become the property of Symantec Symantec does not warrant that the Appliance will meet Your requirements or that operation of the Appliance will be uninterrupted or that the Appliance will be error free In order to exercise any of the warranty rights contained in this Agreement You must have available an original sales receipt or bill of sale demonstrating proof of purchase with Your warranty claim TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW THE ABOVE WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES WHETHER EXPRESS OR IMPLIED INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS YOU MAY HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE AND COUNTRY TO COUNTRY 4 Disclaimer of Damages SOME STATES AND COUNTRIES INCLUDING MEMBER COUNTRIES OF THE EUROPEAN ECONOMIC AREA DO NOT ALLOW THE LIMITATION OR EXCLUSION OF LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES SO THE BELOW LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW AND REGARDLESS OF WHETHER ANY REMEDY SET FORTH HEREIN FAILS OF ITS ESSENTIAL PURPOSE IN NO EVENT WILL SYMANTEC OR ITS LICENSORS BE LIABLE TO YOU FOR ANY SPECIAL CONSEQUENTIAL INDIRECT OR SIMILAR DAMAGE
269. teway that serves as the point of decryption and encryption for the network The cycle of threat awareness policy definition policy implementation and policy monitoring 1 Acompany s formal declaration of its security goals and how it will meet those goals At its most fundamental level a security policy is an organization of controls that is designed to reduce risk demonstrate fiduciary responsibility and satisfy regulatory code 2 A set of security modules such as the rules for constructing passwords or the ownership of a system s start up procedures Policies establish which users can access certain information and point to the standards and guidelines that describe the necessary security checks The process of research creation delivery and notification of responses to viral and malicious code threats and operating system application and network infrastructure vulnerabilities See also notification A known program that may or may not be a threat to a computer For example an email greeting that acts like a mass mailer but isn t strictly a worm because you can choose to use it before it activates The transmission of information between computers or between computers and peripheral devices one bit at a time over a single line or a data path that is 1 bit wide Serial communications can be either synchronous or asynchronous The sender and receiver must use the same data transfer rate parity and flow control information Most mode
270. that are not already covered by the predefined services You must configure these services before you can use them in any rules The name of the service should identify the protocol or type of traffic that the rule allows You must specify the type of traffic and the destination server for that traffic The type of traffic is selected from the list of predefined services and custom services Note On models 460 and 460R FTP application servers must be bound to a WAN port WAN 1 or WAN 2 All other applications such as HTTP do not require binding to a WAN port See Binding to other protocols on page 45 There are two types of protocols used by services TCP and UDP The port range specifies which port filter can communicate on the appliance For protocols that allow for a port range you must specify the listen on port starting and ending port numbers For protocols that use a single port number the listen on port starting and ending port numbers are the same Redirecting services You can also configure services to be redirected from the ports they would normally enter Listen on Port to another port Redirect to Port Service redirection only applies to inbound rules Outbound rules ignore this setting For example to redirect inbound Web traffic entering on port 80 using TCP protocol to an internal Web server listening for TCP on port 8080 you would create a new service application called WEB 8080 Select TCP as the protoc
271. the WAN Port drop down list select the WAN port to connect m Under Manual Control click Connect To manually disconnect your PPTP account 1 Inthe SGML in the left pane click WAN ISP 2 For models 420 and 440 in the right pane on the PPTP tab under Manual Control click Disconnect 3 For models 460 and 460R do the following m Inthe right pane on the PPTP tab under WAN Port in the WAN Port drop down list select the WAN port to connect m Under Manual Control click Disconnect Dial up accounts There are two basic types of dial up accounts analog and ISDN Analog uses a modem that connects to a regular telephone line using an RJ 11 connector ISDN is a digital dial up account type that uses a special telephone line On the appliance you can use a dial up account as your primary connection to the Internet or as a backup to your dedicated account In backup mode the appliance automatically dials the ISP if the dedicated connection fails The appliance re engages the dedicated account when it is stable failover from the primary connection to the modem or from the modem to the primary connection can take 30 to 60 seconds You can configure a primary dial up account and a backup dial up account You may configure a backup dial up account if your primary dedicated account fails First you must connect the modem to the appliance Then you use the SGMI to configure the dial up account You can also connect or disconnect your
272. tificate onto the appliance prior to joining SESA During the join SESA operation the SSL connection downloads the SESA certificate from the SESA Manager to the appliance To install a certificate on the appliance See Trusted Certificates tab field descriptions on page 123 1 Inthe SGMI in the left pane click Administration 2 Inthe right pane on the Trusted Certificate tab click Browse 3 4 Joining security gateways to SESA 161 Joining Symantec Gateway Security 400 Series to SESA Browse to the location of the certificate authority from which you want to import a certificate Click Import To view the contents of a certificate 1 2 3 In the SGMI in the left pane click Administration In the right pane on the Trusted Certificates tab in the Certificate Issued To list select the certificate you want to view Click View To delete a certificate 1 2 In the SGMI in the left pane click Administration In the right pane on the Trusted Certificates tab in the Certificate Issued To list select the certificate you want to delete Click Delete Joining Symantec Gateway Security 400 Series to SESA Joining SESA lets you manage your security gateways from the Symantec management console Before you join SESA Determine the join SESA option that you will use For all options contact your SESA administrator for the following information which you will need to join SESA m SESA Manager IP a
273. til circumstances cause the computer to execute its code Some viruses are playful in intent and effect but some can be harmful erasing data or causing your hard disk to require reformatting A file that provides information to antivirus software for finding and repairing viruses In Symantec AntiVirus Corporate Edition the administrator must regularly distribute updated virus definitions files to Symantec AntiVirus Corporate Edition servers and clients A program that searches files including email and attachments for possible viruses A network that has characteristics of a private network such as a LAN but which is built on a public network such as the Internet VPNs let organizations implement private networks between geographically separate offices and remote or mobile employees by means of encryption and tunneling protocols A defined group of users with certain VPN network configurations and policy settings associated with them For example Group 2 VPN users may have antivirus policy enforcement enabled for them The parameters that define a VPN tunnel are keying encryption and authentication methods and strengths A network that connects distant sites through links provided by local telephone companies Typically a WAN extends a local area network LAN outside of a building to link to other LANs in remote buildings possibly in remote cities An attack from the outside that is aimed at Web server vulnerabilities Aclient progr
274. tion that does not match an entry in the allow list Likewise when a group is configured to use a deny list the content filtering component filters and drops connection requests sent to a destination that matches an entry in the deny list Intrusion detection and intrusion prevention IDS and IPS Symantec Gateway Security 400 Series provides an intrusion detection and intrusion prevention component that protects internal network resources from attack by pinpointing malicious activities and identifying intrusions in real time letting you respond rapidly to the attacks LiveUpdate support Symantec Gateway Security 400 Series incorporates patented LiveUpdate technology to keep your product up to date by downloading firmware updates Managing Symantec Gateway Security 400 Series locally You can manage the full set of features of the Symantec Gateway Security 400 Series using the local interface the Security Gateway Management Interface SGMI You can access the SGMI from an external Web browser by entering the appliance s WAN port IP address and then supplying the administrator s user name and password The guide you are reading describes in detail the use of the SGMI See Administering the security gateway on page 15 Introducing the Symantec Gateway Security 400 Series 11 Key features Managing Symantec Gateway Security 400 Series through SESA Symantec Event Manager and Advanced Manager for Security Gateways Group
275. to another Symantec Gateway Security 400 Series appliance enter 0 0 0 0 for the remote subnet IP address In the Mask text boxes type the netmask of the destination network When defining a global tunnel to Symantec Enterprise Firewall or Symantec Gateway Security 5400 Series appliance for the remote gateway enter 0 0 0 0 for the netmask For global tunnels to another Symantec Gateway Security 400 Series appliance enter 255 0 0 0 for the netmask Click Add Sharing information with the remote gateway administrator Use the worksheet in Table 6 8 to list the administration information that you should provide to the administrator of the remote appliance Table 6 8 Configuration information to provide the remote gateway administrator IP address Authentication key static tunnel Encryption key static tunnel 76 Establishing secure VPN connections Configuring client to gateway VPN tunnels Table 6 8 Configuration information to provide the remote gateway administrator Continued SPI Static tunnel Pre shared key Local subnet mask VPN policy encryption method VPN policy authentication method Optional Local phase 1 ID Configuring client to gateway VPN tunnels Client to gateway VPN tunnels let remote users running the Symantec Client VPN software or any IPsec compliant VPN client software safely connect over the Internet to a network secured by a Symantec security gateway
276. traffic that meets the IP address and netmask combination of the destination Interface The appliance interface to which the defined traffic is routed The options include m Internal LAN m External WAN 1 m External WAN 2 Metric An integer representing the order in which you want the routing statement executed for example 1 is executed first Routing Table List Destination IP address subnet for traffic requiring routing Mask Mask used with the destination IP address to set range of IP addresses for traffic requiring routing Gateway IP address of the router to which to send traffic that meets the IP address and netmask combination of the destination Interface The appliance interface to which the defined traffic is routed Metric An integer representing the order in which you want the routing statement executed For example 1 is executed first 136 Field descriptions WAN ISP field descriptions Advanced tab field descriptions Use the Advanced tab to configure optional connection settings and the DNS gateway Table C 19 Advanced tab field descriptions Load Balancing WAN 1 Load Percentage of traffic to pass through WAN 1 The remainder of traffic Dual WAN port passes through WAN 2 For example if you type 80 WAN 1 passes models 80 of the traffic and WAN 2 passes 20 The default percentage is 50 Bind SMTP with WAN Determines the WAN port and subsequently which ISP through Port which email is sen
277. ts traffic to pass to sites that exactly match entries in the list The content filtering engine drops connection requests sent to a destination that do not match the entries in the list If the allow list is empty all traffic is blocked If the deny list is empty traffic is not filtered Once entries are added to the deny list the content filtering engine drops connection requests sent to a destination that exactly matches an entry Traffic that does not match an entry is allowed to pass Special considerations When content filtering and AVpe are concurrently enabled content filtering is performed first If the content filtering results in a blocked connection AVpe is not processed only a content filtering message is logged If you make changes to content filtering on the appliance clear the DNS and browser caches on the client machine If a URL is accessed by a client but then the content filtering settings change to deny access to that URL the cache may be used and allow the client access to the URL Refer to your operating system documentation for information on clearing DNS caches and your browser s documentation for clearing the browser cache If you enable content filtering for remote WAN side VPN clients you must have DNS servers on the local LAN Advanced network traffic control 87 Managing content filtering lists If a site or security gateway uses redirection to transfer users from one URL to another you must include
278. ture SESA Foundation Pack SESA Integration Wizard SESA native product SESA non native security product SESA enabled product SESA integrated product session SGMI Security Gateway Management Interface signature SIP SESA Integration Package SIPI Symantec Integrated Product Installer slider smart card SMTP Simple Mail Transfer Protocol SNMP Simple Network Management Protocol software SPI Security Parameter Index spoofing SSL Secure Sockets Layer static tunnel The centralized scalable management architecture that is used by Symantec s security products The installation software for SESA A Java application that is used to install the SESA Integration Package SIP See also SIPI Symantec Integrated Product Installer A Symantec product that is built on the SESA foundation and therefore can leverage additional capabilities in SESA See integrating product A security application that is designed to forward events for inclusion in the SESA DataStore See also SESA integrated product Any of the Symantec or non Symantec security products from which SESA can receive events or to which SESA can relay events Some products can be natively integrated through SESA which provides additional capabilities and functions See also SESA native product In communications the time during which two computers maintain a connection and usually are engaged in transferring information
279. ty CA See the Symantec Event Manager and Advanced Manager for Security Gateways Group 2 v2 1 Administrator s Guide for details When SESA is using self signed anonymous certificates the certificate does not need to be imported to the appliance prior to joining SESA During the Join SESA operation the SSL connection downloads the SESA certificate from the SESA Manager to the appliance Anonymous certificates are valid for one year after which a new certificate must be imported If your environment requires a certificate other than what is provided Symantec Gateway Security 400 Series includes a PKI module that lets you load different trusted certificates into the appliance You can import PKCS 7 standard certificates into the appliance and then view the contents of the trusted certificate If a certificate expires the PKI module informs the SESA agent for proper logging You can load up to three certificates At least one trusted CA certificate is required for each primary or secondary SESA Manager The third certificate is used for signing LiveUpdate firmware packages You can also import the CA root certificate which eliminates the need to import a new server certificate each year Note If the same CA issues both SESA Manager certificates you can validate both the primary and secondary SESA Manager SSL server certificates with a single CA certificate When SESA is using certificates signed by a CA you must import the CA root cer
280. ty 400 Series has several advanced firewall options for special circumstances These include m Enabling the IDENT port m Disabling NAT mode m Blocking ICMP requests m Enabling WAN broadcast storm protection m Enabling IPsec pass thru m Configuring an exposed host Enabling the IDENT port Queries to the TCP Client Identity Protocol IDENT port 113 normally result in the host name and company name information being returned However this service poses a security risk since attackers can use this information to hone in their attack methodology By default the appliance sets all ports to stealth mode This configures a computer to appear invisible to those outside of the network Some servers like a certain email or Microsoft Internet Relay Chat MIRC servers use the IDENT port of the system accessing them You can configure the appliance to enable the IDENT port Enabling this setting makes port 113 closed not open and not stealth You should enable this setting only if there are problems accessing a server server time outs Note If you experience time outs when using your mail SMTP service enabling the IDENT port may correct this problem To enable the IDENT Port See Advanced tab field descriptions on page 143 1 Inthe SGMI in the left pane click Firewall 2 Inthe right pane on the Advanced tab under Optional Security Settings check Enable IDENT Port 3 Click Save Disabling NAT mode You can conf
281. ty 400 Series to SESA oo eeeececseeseeceseeseeseseeseeseeceeeeseeeeaeeaeeeeseeaees 163 Determining your options for joining SESA oc ceesesessssssesscesesesesesessesesssseeseseseseseeseseseeeenecseseaes 163 Joining SESA enre cchecuetulaccdet a anduedccavantalecesdecveets a e tt abades utcstaasts a a a 164 Viewing SESA Agent stat S erena a a aa aE A EE a o EN EEE ENEE EEEE 165 Understanding how security gateways obtain configurations from SESA ceeeseeeeeeeeees 166 Logging on to the Symantec Management Console c cceesssessssesesseseeeseseeceseseeeeseseeeeseeeseseeeeseeeeeesees 166 Troubleshooting problems when joining SESA ccccecesssesssseseseeseseeseseseecesescesesseceseseeeeseecaeseseeseeeeaees 166 T avin SES Ack EE A T EE E 166 Chapter Introducing the Symantec Gateway Security 400 Series This chapter includes the following topics m About Symantec Gateway Security 400 Series m Key features m Intended audience m Where to find more information m Network security best practices About Symantec Gateway Security 400 Series The Symantec Gateway Security 400 Series appliances are Symantec s integrated security solution for enterprise remote and small branch office environments with support for secure wireless LANs The Symantec Gateway Security 400 Series provides integrated security by offering six security functions in the base product m Firewall m IPSec virtual private network VPN tunnels with h
282. uct names mentioned in this manual may be trademarks or registered trademarks of their respective companies and are hereby acknowledged Printed in the United States of America 10 9 8 765 43 2 1 Technical support As part of Symantec Security Response the Symantec global Technical Support group maintains support centers throughout the world The Technical Support group s primary role is to respond to specific questions on product feature function installation and configuration as well as to author content for our Web accessible Knowledge Base The Technical Support group works collaboratively with the other functional areas within Symantec to answer your questions in a timely fashion For example the Technical Support group works with Product Engineering as well as Symantec Security Response to provide Alerting Services and Virus Definition Updates for virus outbreaks and security alerts Symantec technical support offerings include m Arange of support options that give you the flexibility to select the right amount of service for any size organization m Telephone and Web support components that provide rapid response and up to the minute information m Upgrade insurance that delivers automatic software upgrade protection Content Updates for virus definitions and security signatures that ensure the highest level of protection Global support from Symantec Security Response experts which is available 24 hours a day 7 days a w
283. us at the gateway server and client Always keep your patch levels up to date especially on computers that host public services and are accessible through the security gateway such as HTTP FTP mail and DNS services Enforce a password policy Complex passwords make it difficult to crack password files on compromised computers This helps to prevent or limit damage when a computer is compromised Configure your email server to block or remove email that contains file attachments that are commonly used to spread viruses such as vbs bat exe pif and scr files Hackers commonly break into a Web site through known security holes so make sure your servers and applications are patched and up to date Eliminate all unneeded programs Isolate infected computers quickly to prevent further compromising your organization Perform a forensic analysis and restore the computers using trusted media Train employees not to open attachments unless they are expecting them Also do not execute software that is downloaded from the Internet unless it has been scanned for viruses Simply visiting a compromised Web site can cause infection if certain browser vulnerabilities are not patched Additional information in depth white papers and resources regarding enterprise security solutions can be found by visiting the Symantec Enterprise Solutions Web site at http enterprisesecurity symantec com 14 Introducing the Symantec Gateway Security 40
284. use or operations instructions or manuals vii Your failure to implement or to allow Symantec or its designee to implement any corrections or modifications to the Appliance made available to You by Symantec or viii such other events outside Symantec s reasonable control Upon discovery of any failure of the Hardware or component thereof to conform to the applicable warranty during the applicable warranty period You are required to contact us within ten 10 days after such failure and seek a return material authorization RMA number Symantec will promptly issue the Licensing 113 SYMANTEC GATEWAY SECURITY APPLIANCE 300 400 SERIES LICENSE AND WARRANTY AGREEMENT requested RMA as long as we determine that You meet the conditions for warranty service The allegedly defective Appliance or component thereof shall be returned to Symantec securely and properly packaged freight and insurance prepaid with the RMA number prominently displayed on the exterior of the shipment packaging and with the Appliance Symantec will have no obligation to accept any Appliance which is returned without an RMA number Upon completion of repair or if Symantec decides in accordance with the warranty to replace a defective Appliance Symantec will return such repaired or replacement Appliance to You freight and insurance prepaid In the event that Symantec in its sole discretion determines that it is unable to replace or repair the Hardware Syman
285. user name is always admin Firewall VPN admin s Password IDS PS Verify Password pow Antivirus Policy Content Filtering Remote Management Caution The remote management features provide minimal protection over a public network For highest security do remote administration through a VPN tunnel If you do use these settings you must specify both a start and end IP address Start IP Address fo fo fo a fo End IP Address 0 fo op fo I Allow Remote Firmware Upgrade _Seve Cancel Command buttons Right pane content Note The wireless features do not appear in the SGMI until a compatible Symantec Gateway Security WLAN Wireless Local Area Network Access Point option is properly installed and configured See the Symantec Gateway Security 300 400 Series Wireless Implementation Guide for more information Administering the security gateway 17 Navigating the user interface Understanding left pane main menu options The menu options in the left pane of the SGMI let you do the following Logging Monitoring Configure logging and monitoring functions You can set up the size and rollover rate of the Administration LAN WAN ISP Firewall Wireless VPN IDS IPS Antivirus Policy Content Filtering system log file and view current log files archived log files and current system status Configure administrative functions such as setting passwords allowing remote management of the securit
286. view the status of the SESA Agent including whether or not SESA is enabled To view SESA agent status 1 2 In the SGMI in the left pane click Administration On the Advanced Management tab under Local SESA Agent Status you can view the following information SESA Enabled This displays Y when SESA Server is available N when it is not Mode This displays the management mode either Management for full SESA management or Monitoring for event logging and reporting only Primary Server This displays the IP address of the primary SESA server Secondary Server This displays the IP address of the secondary SESA server SESA ID This displays the SESA ID of the security gateway SESA Agent Status Status of the local SESA Agent This can be m Active m Activating m Deactivating m Deactivated To refresh the SESA Agent status display click Refresh 164 Joining security gateways to SESA Logging on to the Symantec Management Console Understanding how security gateways obtain configurations from SESA After your security gateway joins SESA you can obtain configuration information from the SESA Manager in a number of different ways Running the join SESA procedure provides your security gateway with the configuration associated with either the default organizational unit or the specific organizational unit you requested during the join operation Once you have joined SESA the SESA Manager automatically sends out configuration
287. virus policy enforcement AVpe works m Before you configure AVpe m Configuring AVpe Monitoring antivirus status m Verifying AVpe operation m About content filtering m Managing content filtering lists Monitoring content filtering How antivirus policy enforcement AVpe works Advanced network traffic control features of the Symantec Gateway Security 400 Series appliance include antivirus policy enforcement AVpe and content filtering AVpe lets you monitor client antivirus configurations and if necessary enforce security policies to restrict network access to only those clients who are protected by antivirus software with the virus definitions defined by the policy master The appliance also supports basic content filtering for outbound traffic You use content filtering to restrict the URLs to which clients have access For example to restrict your users from seeing gambling sites you configure content filtering to deny access to gambling URLs that you specify AVpe monitors the AV configuration of supported Symantec connected policy masters and client workstations attempting to gain access to your corporate network See the Symantec Gateway Security 400 Series Release Notes for the version of the product you are using to determine the supported AV products and how their configuration and usage differs from the information in this chapter AVpe works in two different environments a network with an internal Symantec AntiVirus
288. where HH is hours between 0 and 24 and MM is minutes between 0 and 59 For example to check for updates at 7 30 pm type 19 30 The UTC setting is dependent on access to an NTP server Use only numeric characters and a colon in this text box Field descriptions 125 LAN field descriptions Table C 9 LiveUpdate tab field descriptions Continued Optional Settings HTTP Proxy Server Enables the security gateway to contact the LiveUpdate server through a HTTP proxy server Proxy Server Address __ IP address of the HTTP proxy server through which the LiveUpdate server gets the firmware updates Port Port number associated with the HTTP proxy server through which the LiveUpdate server gets the firmware update The maximum value is 65535 The default port is 80 User Name User name associated with the HTTP proxy server through which LiveUpdate gets the firmware update Password Password associated with the HTTP server Status Last Update Date of the most recent update in format YYYYMMDD Last Update Version Version number of the most recent update LAN field descriptions LAN settings let you configure your security gateway to work in a new or existing internal network LAN settings include the security gateway s IP address whether it acts as a DHCP server for the nodes it protects and LAN port settings This section contains the following topics m LAN IP amp DHCP tab field descriptions m Port Assignments tab
289. wired LANs Each appliance has a default LAN IP address of 192 168 0 1 with a default network mask of 255 255 255 0 You can configure the appliance to use a different IP address and netmask for the LAN This is useful if you want to configure a LAN to use a unique subnet for your network environment For example if your network already uses 192 168 0 x you can change the appliance s IP address to 10 10 10 x so you do not have to reconfigure your existing network Ensure that the IP address you choose for the appliance does not have zero 0 as the last octet You cannot set the appliance IP address to 192 168 1 0 Note After you change the appliance s LAN IP address you must browse to the new appliance IP address to use the SGML If you click the Back button in the browser it attempts to access the old IP address To configure LAN IP settings See LAN IP amp DHCP tab field descriptions on page 125 1 Inthe SGMI in the left pane click LAN 2 Inthe right pane on the LAN IP amp DHCP tab under Unit LAN IP in the IP Address text boxes type the new IP address 3 In the Network Mask text box type the new network mask 4 Click Save 50 Configuring internal connections Configuring the appliance as a DHCP server Configuring the appliance as a DHCP server Dynamic Host Configuration Protocol DHCP allocates local IP addresses to computers on the LAN without manually assigning each computer its own IP address
290. y 400 Series to SESA Logging on to the Symantec Management Console Troubleshooting problems when joining SESA Leaving SESA About joining SESA To join SESA you use the Advanced Management tab in the Administration area of the Security Gateway Management Interface SGMI As the local administrator you must also have administrative privileges on the SESA Manager to join SESA Note Your SESA environment must be installed and fully operational before installing the Symantec Event Manager and Advanced Manager for Security Gateways Group 2 v2 1 See the Symantec Enterprise Security Architecture Installation Guide for further information Joining SESA performs the following tasks Registers the SESA Agent preloaded on the Symantec Gateway Security 400 Series with the SESA Manager Downloads configuration settings associated with an organizational unit if you select one Downloads configuration settings associated with the default organizational unit if you do not select a specific organizational unit to join Instructs the SESA Manager to assign the validated configuration with the local security gateway Instructions for joining SESA are also provided in the following documentation Symantec Event Manager and Advanced Manager for Security Gateways Group 2 v2 1 Administrator s Guide Symantec Event Manager and Advanced Manager for Security Gateways Group 2 v2 1 Integration Guide They are mirrored here so that SESA ad
291. y gateway specifying advanced management parameters viewing trusted certificates and scheduling LiveUpdate frequency Specify usable LAN IP and DHCP addresses and port assignments Specify network connection types DNS settings modem settings and routing table information Control the firewall functionality of the security gateway You can set up inbound and outbound rules enable system services organize computer groups map services to ports and customize connectivity for internal network nodes Control the wireless functionality supported by the security gateway Build and manage Virtual Private Network VPN tunnels to connect securely to remote users and gateways Manage the level of Intrusion Detection and Intrusion Prevention you want to provide to internal network nodes Enable and manage antivirus protection for the security gateway and its protected network Control allow or deny lists with which you can filter or block Web sites and URLs Understanding right pane features The right pane features include the following Menu tabs Command buttons Content Help button For each left pane menu option there is a corresponding set of right pane menu tabs that help break down the tasks associated with the menu item into logical groupings For example the Logging Monitoring menu option contains the following tabs m Status View system status including network connectivity physical addresses and appliance version
292. y through switches and cause congestion Symantec Gateway Security 400 Series appliances offer broadcast storm protection to prevent the condition from affecting normal network traffic An attack that exploits a known bug in one of the applications running on a server This then causes the application to overlay system areas such as the system stack thus allowing the attacker to gain administrative rights In most cases this gives the attacker complete control over the system Also called stack overflow A group of wires that are enclosed in a protective tube Usually this is an organized set of wires that correspond to specific pins on a 9 or 25 pin connector located at each end A cable is used to connect peripheral devices to each other or to another computer In remote computing this can refer to a cable that is used to connect a computer to a modem or a cable that connects two computers directly which is sometimes called a null modem cable A requesting program or user in a client server relationship For example the user of a Web browser is effectively making client requests for pages from servers all over the Web The browser itself is a client in its relationship with the computer that is getting and returning the requested HTML file A computer that is running a client program In a network the client computer interacts in a client server relationship with another computer that is running a server program The transfer of data betwee
293. you configure your security gateway to be monitored by SNMP servers Table C 7 SNMP tab field descriptions SNMP Read only Community String A community string may be required by your SNMP server Managers GETS and TRAPS IP Address 1 IP IP address of SNMP TRAP receivers TRAPs are forwarded to these Address 2 IP Address 3 addresses Enable Remote Allows external access to SNMP GET on the appliance Monitoring Trusted Certificates tab field descriptions The Trusted Certificates tab lets you view status information about certificates being used on the security gateway Table C 8 Trusted Certificates field descriptions Trusted Root Certificate Issued To Host to whom the certificate was issued Certificate m T pa te Certificate File Click Browse to browse to the location in which the certificate is Authorities Location stored View Click here to view the certificate information Import Click here to import the certificate Delete Click here to delete the certificate 124 Field descriptions Administration field descriptions Table C 8 Trusted Certificates field descriptions Continued Certificate Attributes Certificate Issued To Owner of the certificate Certificate Issued By Certificate authority that issued the certificate Version Version of the certificate Issuer DN Distinguished Name of the certificate issuer Subject DN Distinguished Name
294. your naming conventions let you distinguish between policies that use the same encapsulation mode When you are ready to create your secure tunnels clearly defined naming conventions will make selecting the correct VPN policy easier Note You cannot delete pre defined VPN policies Creating custom Phase 2 VPN policies VPN Policies are pre configured for typical VPN setups If you require customized settings for compatibility with third party equipment for example then you can create a custom Phase 2 Policy A VPN policy groups together common characteristics for VPN tunnels Rather than configuring data privacy data integrity and data compression algorithms for each tunnel that you create you can configure standard reusable VPN policies and then apply them to multiple secure tunnels Note Configuring a VPN policy is optional for dynamic tunnels To create a custom Phase 2 VPN policy See VPN Policies tab field descriptions on page 151 1 Inthe SGMI in the left pane click VPN 2 Inthe right pane on the VPN Policies tab under IPsec Security Association Phase 2 Parameters in the Name text box type a name for the VPN policy To edit an existing policy from the VPN Policy drop down list select a VPN policy On the Data Integrity Authentication drop down list select a type of authentication On the Data Confidentiality Encryption drop down list select an encryption type a uu A UW In the SA Lifetim
295. ype the LAN IP address of the appliance The default LAN IP address of the appliance is 192 168 0 1 7 Inthe Local File text box type the file name of the backup file 8 Click Put 9 Turn DIP switches 1 and 2 to the off down position 10 Copy the backup file from your hard drive to a floppy disk and store in a secure location To restore an appliance configuration To turn off the power press the power button on the back panel of the appliance Turn DIP switches 1 and 2 to the on up position Turn on the appliance by pressing the power button Copy the symcftpw utility from the product CD ROM to a folder on your hard drive Double click the symcftpw icon O uu A W NY In the Server IP text box type the LAN IP address of the appliance The default LAN IP address of the appliance is 192 168 0 1 N In the Local File text box type a file name for the backup file 8 Click Get 9 Turn DIP switches 1 and 2 to the off down position 104 Logging monitoring and updates Backing up and restoring configurations Resetting the appliance You can reset the appliance in three different ways Basic reset Restarts the appliance This is similar to turning off and then turning on the appliance All current connections including client VPN tunnels are lost Previously connected gateway to gateway VPN tunnels are reestablished when the appliance restarts Also the appliance performs a self test of the hardware when the appliance

Symantec Gateway Security Appliance 440 (10278186)

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