#05135 RP-SR634 USER`S MANUAL
Contents
1. AUTOMATIC MAC IP ASSOCIATION Determine the IP address currently assigned to the LAN client Click on the Intranet tab Under the D HCP Server menu item click on Current Status Find the IP address on the table and click on the corresponding Add button Enter the desired IP address onto the IP address text box marked N ew26 Click on Apply DHCP Server Current Status Table reflects current status of DHCP AUTO IP assignments Click on Add to assign a fixed IP address Assignment of a different IP address takes effect only after expiration of current lease IP Address MAC Address Fixed Hostname 192 168 1 51 00 e0 7d b6 a8 72 Afal shogo 25 Refer to the operating system manual or reference guide for details 26 If the IP address entered is different from the IP address currently assigned to the LAN client the LAN client must renew its DHCP lease Refer to the operating system manual or reference guide for details 36 Administration Chapter A coess C ontrol and troubleshooting tools Multi Homing provides an extensive set of system tools that equip the novice network administrator to do advanced network troubleshooting Multi Homing also provides sophisticated control structures that can restrict access to its configuration A uthentication By now you have familiarized yourself with username password authentication mechanism used by Multi Homing This is an industry standard method for authenticating the identit2. fi9216811 Fo del CO F E 16 See Appendix C for a list of common ports DELETING A RECORD ABOUT VIRTUAL SERVER Click on Virtual Server under Firewall in the Security tab Select the rule you want to delete Press del button in the right of the rule Press Apply PORT TRIGGERING Port trigger is a set of rules which is used to open port forwarding dynamically Each rule is composed of a trigger condition and a port forwarding rule A dd One Port T rigger F or Realplayer Click on Port trigger under Firewall in Networking tab Add the following items in the port trigger page and press Apply A The name RealOne B The triggered port 554 554 The triggered protocol TCP The incoming port 7070 7071 The incoming protocol UDP The Server check No A dd one PORT Trigger for mIRC Click on Port trigger under Firewall in N etworking tab Add the following items in the port trigger page and press Apply A The name mIRC B The triggered port 6660 6670 The triggered protocol TCP The opened port 113 113 The opened protocol TCP The Server check No URL Blocking Uniform Resource Locator URL blocking can be used by parent to limit access to certain Internet sites for their children This feature is more effective than Intemet IP Blocking as Internet sites might have multiple IP addresses and the user does not required to know the IP address to set a blocking rule In additi
3. 3 33 RFCs Refer for Comments are documents published through the Internet Engineering Task Force IETF to solicit comments and present guidelines for proposed as well as endorsed Internet standards Newer RFCs may be proposed which supersede the RFCs identified in this document Common Port Numbers This is a list of commonly used port numbers and the services they are associated with ort numbers are generally divided into 3 categories Well known port numbers are defined from 0 through 1023 Registered port numbers range from 1024 through 49151 While dynamic or private port number range from 49152 through 65535 Well known port numbers normally involve daemons with special system privileges as such exposing them may present a higher security risk than opening dynamic or private ports The official list of well known port numbers is maintained by the Internet Assigned Numbers Authority IANA The full list is published under RFC1700 34 Daemons are also sometimes referred to as servers The term daemon is used to denote the program that provides the services The term server can denote either the program that provides the service but is also used to refer to the physical device that executes the program The origin of the daemon concept stems from its applications in Unix The original designers viewed the operating system as a great sorcerer with little daemons or minions or servants to do various menial
4. On the other hand a firewall can also block connection from LAN to the Internet A common practice of this feature is the URL Uniform Resource Locator blocking used by parents to limit access to certain Internet sites for their children The Security tab enables the network administrator to fine tune or customize various features of the Multi Homing firewall The Menu of Security ICMP Blocking Incoming Policy Outgoing Policy Firewall Port Triggering Virtual Server Port Mapping URL Blocking URL Blocking Packet Internet G roper PIN G Packet Internet Groper or ping is a very useful utility used by network administrators to determine if a computer is up and running The ping program sends a small packet to an address if there is a computer assigned to the address it sends a reply Ping uses the Internet Control Messaging Protocol ICMP Multi Homing can be configured not to reply to PING requests 3 DISABLING ICMP REPLIES 1 Click on the Security tab 2 Under the Firewall menu option click on ICMP Blocking Click on the appropriate radio button to enable disable ICMP replies Press Apply fire Security Help Firewall ICMP Blocking Blocking ICMP prevents detection using PING Warning Blocking ICMP can make network troubleshooting more difficult Block WANICMP Yes No 13 There are advantages as well as disadvantages to disabling PING replies The crafty Network Administ
5. PRESERVING YOUR SYSTEM CONFIGURATION 1 Click on the Administration tab 2 Under the System menu item click on Config Setting 3 Press Save button 4 Do the rest of setting according to prompt window LOADING YOUR SYSTEM CONFIGURATION Click on the Administration tab Under the System menu item click on Config Setting Press Browse button to specify the file path Press Load button Do the rest of setting according to prompt window System L og Multi Homing provides a system log of all system activities up to 50 entries Old entries will be purged automatically to ensure a healthy system However if you want to keep a full system log you can setup a remote system log daemon remote syslogd to record all system events remotely This feature can also be very helpful to monitor the system activities at distant VIEW SYSTEM LOG Click on the Administration tab Under the System menu item click on System Log The system log shows time and system events of the last 50 system activities System Log Clear System Log Clear Table below shows time and system events The log enumerates only the last 50 system transactions May 1 15 19 37 Mutli Homing daemon warn klogd Invalid packet IN eth1 OUT MAC ff ffff ff ff f 00 00 b4 4b 01 e1 08 00 SRC 10 10 18 22 DST 10 10 255 255 LEN 229 TOS 0x00 PREC 0x00 TTL 128 ID 22567 PROTO UDP SPT 138 DPT 138 LEN 209 May 1 15 19 37 Mutli Homing daemon warn klogd Invalid
6. require further set up since IP address gateway and DNS information are automatically set by the ISP Secondary W ide A rea N etwork WAN 2 Multi Homing has a second WAN port for a secondary WAN connection to the Internet Having two WAN ports Multi Homing can share the Internet traffics thru load balancing while for WAN connection fault tolerance The setup of secondary WAN interface WAN 2 is the same as the primary WAN interface You can choose a second ISP to provide your WAN 2 connection Like primary WAN connection you have the choice of Static Dynamic PPPoE connection type to suit your ISP supporting package Otherwise you may simple disable it if this does not apply to you SET Notworking Heip WANI Interface AN1 Interface Connection Type Connection Type Please select your WAN1 connection type To use ISP provided IP address select Static IP Address ADSL PPPoE Connection Type C Static Dynamic C ADSL PPPoE C ADSL PPTP NAT ONS Settings MAC Clonin Dynarnec ONS WAN Interface CONNECTION TYPE SET UP 1 Determine which connection type is assigned by ISP check documentation provided by ISP Click on Networking tab Under the WAN 1 Interface menu item click on Connection Type Click on the appropriate radio button Click on Apply Do the rest of setting according to prompt window IGURING A STATIC IP ADDRESS Determine the fixed IP address assigned by the ISP Click on the N etworkin
7. 05135 RP SR634 USER S MANUAL CE Merk Waning This equipment complies with the requirements relating to electromagnetic compatibility EN55022 class B for ITE the essential protection requirement of Council Directive 89 336 EEC on the approximation of the laws of the Member States relating to electromagnetic compatibility This Equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help This device complies with Part 15 of the FCC Rul
8. 10 part Notice that the above examples specify a single specific address O perators To provide a succinct notation wherever more than one address is desired three operators are defined for the syntax Operator Purpose Comma Specify multiple non sequential addresses gt Dash Specify a range of sequential addresses Asterisk Wildcard for every address within the Class C 0 to 255 E xpression E xamples Comma Operator To specify the first three odd addresses 192 168 1 1 3 5 Dash Operator To specify the first five addresses 192 168 1 0 4 Asterisk O perator To specify all addresses when the full IP Address range is required 192 168 1 Multiple O perators The operators can also be combined To specify every address between 100 and 200 plus addresses 50 and 250 192 168 1 100 200 250 50 Note that the order in which the ranges or the individual addresses are specified is irrelevant Notice also that a range specified as 192 168 1 1 3 5 10 will specify every address from 0 to 255 This is because the Asterisk O perator supersedes all other operators the prior operators are simply ignored The following the white paper on IP address assignment is recommended reading for the industrious Network Administrator It presents guidelines for the designation of IP Addresses within your LAN This document is widely available on the WWW RFC 1918 Address Allocation for Private Internets
9. a static IP address with a human readable machine name for use on the World Wide Web When a DNS server receives a name lookup request it compares it against a list of published IP host name associations O nce a match is found the server replies with either the IP address or host name Since the published lists are static conventional DNS servers are unable to map DHCP or PPPoE configured hosts as the configuration protocols do not guarantee that the host computer will always have the same IP address thus the IP address hostname mapping will not always be correct Dynamic DNS overcomes the fixed IP requirement of conventional D NS by running a daemon that automatically updates DNS server information To avail of this service you will have to register with one of several dynamic DNS service providers and configure Multi Homing to forward IP address changes to the dynamic D NS server This feature is particularly useful for providing WAN side services e g HTTP or FTP DYNAMIC DNS CONFIGURATION Click on the N etwork tab Under the WAN 1 Interface menu item click on Dynamic DNS Click on enable disable to activate deactivate the feature Select the Service Provider that you signed up on the drop down box 0 Enter the registered hostname in the appropriate text box Enter the username password in the appropriate text boxes For some service providers Enable Wildcard and Mail Exchanger can be specified Click on Appl
10. for the Kerberos authentication system Open this port when mapping to a Kerberos system POP2 This port provides connection services for version 2 of the Post O pen this port only if mapping to a PO P2 O ffice Protocol compliant server POP3 This port provides connection services for version 3 of the Post Office Protocol Open this port only if mapping to a PO P3 compliant server SQ LServ This port provides connection to SQL services Open this port only if mapping to a SQL server using these ports News NNTP This port provides connections services for the Network News Transport Protocol Ovpen this port only if mapping to a NNTP server NTP This port provides connection to the network time protocol Open this port only if mapping to a NTP server NetBIO S ns NetBIO S dgm NetBIO S ssn These ports are required to provide NetBIOS services Some NetBIOS services expose important network resources Exercise caution when mapping this port to a NetBIOS enabled relay server IMAP2 This port provides connection services for version 2 of the Interim Mail Access Protocol Open this port only if mapping to aIMAP2 compliant server SNMP SNMPTRAP These ports provide connection services for the Simple Network Management Protocol SNMP Open this port only if mapping to an SNMP agent IMAP3 This port provides connection services for version 3 of the Interim Mail Access P
11. mode for your ADSL PPPoE links Click on Apply Do the rest setting according to prompt window 4 PAP CHAP MSCHAP V1 MSCHAP V2 5 AC name Accesss concerntrator 6 ADSL PPPoE allows your ISP to monitor the amount of time you are using the Internet for billing purposes If your ISP or network provider bills you for the amount of time that you are connected you should set the Connect on Demand option and set the Maximum Idle Time This feature automatically connects your system when needed and disconnects it if you are not using the Internet This feature is both convenient and practical WAN1 ADSL PPPoE Settings Enter the ADSL PPPoE authentication information provided by ISP PS It will still reconnect after restart Switching Router if you manual STOP the PPPOE connection PPPoE Manual Dial Start Stop PPPoE Username D maim 256 characters PPPoE Password o o maim 256 characters PPPoE Authentication Pa E AC Name e Serice Name poo C Connect On Demand Max Idle Time PPPoE Connection jeo Seconds Always On STARTING WAN1 ADSL PPPOE MANUALLY 1 Click on AD SL PPPoE under WAN 1 Interface in the Networking tab 2 Click on Start STOPPING WAN1 ADSL PPPOE MANUALLY 1 Click on AD SL PPPoE under WAN 1 Interface in the Networking tab 2 Click on Stop 7 7 Router will reconnect after restart if you manual STOP the PPPOE connection CONFIGURING MULTI HOMING TO USE A P
12. packet IN eth1 OUT MAC ff ff ff ff ff ff 00 e0 7 4 75 52 c7 08 00 SRC 10 10 1 4 DST 10 10 255 255 LEN 229 TOS 0x00 PREC 0x00 TTL 128 ID 8451 PROTO UDP SPT 138 DPT 138 LEN 209 May 1 15 19 37 Mutli Homing daemon warn klogd Invalid packet IN eth1 OUT MAC ff ff ff ff ff ff 00 e0 7 d 02 8e 44 08 00 SRC 10 10 1 32 DST 10 10 255 255 LEN 229 TOS 0x00 PREC 0x00 TTL 128 ID 30241 PROTO UDP SPT 138 DPT 138 LEN 209 May 1 15 19 37 Mutli Homing daemon warn klogd Invalid packet IN eth1 OUT MAC ff ff ff ff ff ff 00 e0 7 d ce 60 da 08 00 SRC 10 10 7 9 DST 10 10 255 255 LEN 229 TOS 0x00 PREC 0x00 TTL 128 ID 50517 PROTO UDP SPT 138 DPT 138 LEN 209 Specifications Appendix amp Accessories Packing L ist One Multi Homing broadband gateway One power adapter Wall mount kit User s Manual Front Pand at 1 LED sD efinition SYSTEM LED Power LED This indicator lights green when the ADSL Router is receiving power otherwise it is off Status LED The LED will be dark for 10 seconds when the system is started After that the LED will blink green periodically to show the ADSL Router is working normally If the LED stays green dark that means the system is fail you need to contact your agent or try to reboot the system LED SPEED LED The SPEED LED indicates the link speed
13. part of the screen GETEA Networking ENTA 6s Navigation WANM1 Interface Networking Settings Tabs Connection Type These options affect connection betw IP Address The iverret is made up of wede area netw User Switching_Rowter is the gateway that cor ADSLPPPoE prowdes the WAN connection to Diog ADSLPPTP Area Completion of some of the w b pages wil NAT The Home tab presents version information as well as a brief feature list The Networking tab includes all the essential configuration items required to get a LAN up and running The Security tab provides configuration items that control firewall behavior By default Multi Homing comes configured to lock out unsolicited network connections To allow specific services to be allowed through Multi Homing some modifications under this tab is required The Intranet tab accommodates changes that are LAN specific Under this tab a network administrator can specify rules for the assignment of IP addresses as well as manipulate tools that improve local area network performance and resource availability such as the transparent proxy cache The Administration Tab provides control monitoring and troubleshooting tools The Help Tab provides additional context sensitive information Menus are located at the left side of the screen provides additional navigation for tab components After each session involving configuration modifications the changes should be saved and the system
14. physical device that executes the program The origin of the daemon concept stems from its applications in Unix The original designers viewed the operating system as a great sorcerer with little daemons or minions or servants to do various menial tasks for him Although the sorcerer concept did not catch on the term daemon became the accepted term 18 Please refer to your operating system manual or reference guide for the proper configuration procedure 19 The range of available D HCP IP addresses is called the DHCP pool 32 ACTIVATING DEACTIVATING THE DHCP SERVICE Click on the Intranet tab Under the DHCP menu item select Basic Settings Click on the appropriate enable or disable yes or no button20 Click on Apply IP ADDRESS POOL ASSIGNMENT Click on the Intranet tab Under the DHCP menu item select Basic Settings Enter the start of the range onto the DHCP start IP text box Enter the end of the range onto the DHCP end IP text box Click on Apply to save the setting DHCP Server Settings For 192 168 1 1 Dynamic Host Configuration Protocol DHCP automatically allocates IP addresses to PCs on your local network Enable DHCP Server Nves No DHCP start IP f192 168 1 51 DHCP end IP f192 168 1 100 Contract Period i hours 4 day pi 7 days 20 DHCP daemon is enabled by default Permanent IP A ddress A ssignment Typically DHCP daemons assign the next available IP address from the DHCP poo
15. P addresses are 32 bit numbers expressed in 4 numbers each between 0 and 255 separated by dots Each number is called a quad This form of representing an IP address is called dot quad A continuous group of addresses is called an IP address range or simply just a range IP address ranges make it easier for network administrators to control the behavior of sophisticated network appliances such as the Multi Homing when dealing with large groups of computers A range that spans all 256 addresses of the last quad i e 0 up to 255 is called a Class C subnet or simply Class C An IP block is a range of IP addresses with a matching sub netmask There are several items within Multi Homing that use IP Address ranges These items can operate on more than a single IP Address simultaneously For example a user may choose to configure Multi Homing s firewall to block several IP Addresses say every address from 10 0 0 1 to 20 0 0 255 Wherever an IP Address Range can be specified the user can utilize IP Range Syntax There are two possibilities for the input of IP Address expressions in the controls on the G UI using IP Range Syntax e One requires all 4 dot quads address format e g 192 168 1 10 10 0 0 1 255 255 0 255 e The other is a field that has the first three quads of the address provided as a label and you are required to enter an expression for the last quad in the address For example 192 168 1 10 you only specify the
16. PTP CONNECTION 1 Click on Connection Type under WAN 1 Interface in the Networking tab 2 Click on AD SL PPTP and press Apply 3 Enter My IP Address ex 192 168 100 100 My Subnet Mask ex 255 255 255 0 Server IP Address ex 192 168 100 1 PPTP Account ex 123456 PPTP Password ex 123456 and press A pply NAT CONFIGURATION SET UP ONE TO MANY NAT WITH WANI INTERFACE 1 Click on NAT under WAN 1 Interface in the N etworking tab 2 Click on One to Many NAT and press Apply SET UP MANY TO MANY NAT WITH WANI INTERFACE Click on NAT under WAN1 Interface in the Networking tab Click on Advanced Setting Enter Public IP Range ex 61 220 168 202 61 220 168 206 Press Apply UP ONE TO ONE NAT WITH WAN1 INTERFACE Click on NAT under WAN1 Interface in the Networking tab Click on Advanced Setting Enter Public IP in WAN ex 61 220 168 204 Private IP in LAN ex 192 168 1 50 Click on Apply D omain N ame Service D N S Domain name service helps you to work with IP addresses by mapping them out to simple human readable names Multi Homing needs the correct values for certain LAN side client services like web browsing to work properly The DNS server IP addresses should be provided to you by your ISP 8 CONFIG URING THE DNS SERVICE 1 2 3 4 Click on the Networking tab Under the WAN 1 interface menu item select D NS Settings Enter up
17. RIGGERING URL BLOCKING INTRANET ACTIVATING DEACTIVATING THE DHCP SERVICE IP ADDRESS POOL ASSIGNMENT AUTOMATIC MAC IP ASSOCIATION ADMINISTRATION CHANGING THE VALID USER AND PASSWORD CONTROLLING WEB ACCESS CONFIGURATION BY IP ADDRESS SELETE THE LANGUAGE MODE OF GUI DISPLAY SYSTEM STATUS SETUP SYSTEM TIME RESTARTING YOUR SYSTEM SET FACTORY DEFAULT UPDATE YOUR SYSTEM SOFTWARE PRESERVING YOUR SYSTEM CONFIGURATION LOADING YOUR SYSTEM CONFIGURATION VIEW SYSTEM LOG APPENDIX A SPECIFICATIONS amp ACCESSORIES LEDs DEFINITION SYSTEM LED PorRT LED PORTS LED SUMMARY TABLE FACTORY SETTING BUTTON KEY FEATURE APPENDIX B SPECIFYING INTERNET ADDRESSES APPENDIX C COMMON PORT NUMBERS Welcome to Chapter Multi Homing T he safest and most convenient way to the Information Superhighway elcome to Multi Homing This powerful network tool will enable you to securely connect multiple computers to the Internet through a single D SL Cable modem or T1 E1 ISDN CSU DSU Through this simple comprehensive appliance you can connect multiple computers in your home or office using standard Ethernet networking Its highly configurable built in network firewall provides you with the power to choose specific services allowed through your network while keeping all malicious Internet attackers out Multi Homing also provides super advanced features like sophisticated bandwidth control The simple Web based interface will help y
18. agement tool We just provide C class subnet system needs to soft restart to take effect ADSL PPPoE ADSL PPTP Host Name Mutli Homing Router P fis2 168 1 7 NAT address 8 Netmask pass 255 255 0 DNS Settings MAC Cloning i Router Services DYNAMIC ROUTING SETTING DYNAMIC ROUTING PROTOCOL 1 Click on Dynamic Routing under Router Services in the Networking tab Click on Yes to enable RIP support Choose on Version 1of Send and Receive Protocol Choose on Version 2 of Send and Receive Protocol Press Apply STATIC ROUTE SETTING STATIC ROUTE NET TO HOST 1 Click on Static Route under Router Services in the Networking tab Choose host from Type combo box Enter Destination Choose WAN1 from Dev combo box Press Apply SETTING STATIC ROUTE NET TO NET 1 Click on Static Route under Router Services in the Networking tab Choose net from Type combo box Enter Destination Netmask and G ateway Choose WAN1 from Dev combo box Press Apply Security Chapter Multi H omingis the key to controlling the flow of information real world firewall is built between buildings to slow down the progress of a disaster and preserve valuable life and property Network firewalls are put between networks to control the amount of information that flows through them One of the fundamental goals of a firewall is to prevent unwanted connections from the outside of the network from entering the LAN
19. as the configuration computer or Administrator computer in other parts of this document Networking with Chapter the Wizard U sing the M ulti H oming N etwork ing W izard is the fastest way to get started ulti Homing comes with a web based wizard that breezes you through configuration The wizard presents you with each necessary configuration step and each possible option Upon completion of a wizard based set up Multi Homing will be ready for use When set to factory defaults the wizard starts up automatically It can also be invoked by clicking on the Configuration Wizard button on the home tab At the end of the initial configuration the appliance will ask the user for a username and password This is a standard authentication mechanism used to ensure that subsequent configuration changes are done by the proper individuals Do not give the username password to people who are not authorized to change your network configuration Confiquration Wizard Understanding Chapter the User Interface N avigation R ules ulti Homing has a web based graphical user interface G UI that can be accessed using a standard HTML HTTP v1 0 compliant browser Once the LAN is properly connected a network administrator can connect to it through the URL http 192 168 1 1 The GUI has two main navigational components Tabs and Menus Each Tab represents a major group of functions that a user can configure and are located on the top
20. clients but e Accessing to the port 20 21 of IP 192 168 1 3 from IP 210 201 37 183 with port 20 21 will be denied e Accessing to the port 88 of IP 192 168 1 5 from IP 210 201 37 188 with port 80 will be denied MODIFYING AN IP ADDRESS OR REMOVING AN POLICY FROM THE INCOMING POLICY LIST Click on the Security tab Under the Firewall menu item click on Incoming Policy To modify an IP address enter new parameters To remove an Policy click the del key Click on Apply BLOCKING INDIVIDUAL OR SERVICE PORT OF LAN CLIENTS FROM ACCESSING THE INTERNET 1 Click on the Security tab 2 Under the Firewall menu item click on Outgoing Policy Enter the IP address and port number or range to be blocked onto the corresponding text box at the bottom of the list marked N ew according the following figure Click combo box and select protocol Click combo box and select PERMIT DENY action Check Enable box to log the event Click on Apply Source IP Source Dest IP Dest mask Port Range mask Port Range fi92 168 1 33 eo 210 201 37 199 feo ALL PERMIT M Enable del 255 255 255 0 a0 255 255 255 0 fo o nable del 192 168 1 52 20 66 218 71 198 20 ALL gt PERMIT z Enable del 255 255 255 0 a0 255 0 0 0 Bo nable del lt TcP PERMIT z I Enable New This figure describes all the IP address coming from LAN port will be denied to access WAN services bu
21. de initiated connections are translated WAN side connection attempts are ignored unless specifically configured to be accepted see chapter on Security 11 192 168 1 0 255 is a special range of Class C addresses set aside by the Internet Engineering Task Force IETF for use by private networks see RFC 1918 for more details RFCs Refer for Comments are documents published through the Internet Engineering Task Force IETF to solicit comments and present guidelines for proposed as well as endorsed Internet standards Newer RFCs may be proposed which supersede the RFCs identified in this document 12 Also called the default gateway Changing this value on an already running LAN will require computers on the LAN with dynamically allocated IP addresses to renew their leases see D HCP section while computers on the LAN with statically allocated IP addresses will need to be reconfigured CHANGING THE LAN IP ADDRESS Click on the N etworking tab Under the LAN Interface menu item click on IP address Enter the Host Name You may enter MAC address to change LAN MAC address 1 2 3 4 Enter the desired IP address in the appropriate field 5 6 Click on Apply to save your changes Networking intranet Help WAN Interface LAN Interface Settings Soanection Type This IP address will serve as the default geteway for the LAN It is also the address that will be used to connect to the Switching Router web IP Address man
22. des connection for the Simple Mail Transport Protocol SMTP This protocol is used for transmission of electronic mail e mail Open this port only if mapping to an SMTP server Time This port sends automatic replies indicating the time Open this port only if mapping to a server with a time daemon TACACS This port provides network authentication for TACACS servers Open this port only if mapping to a TACACS server DNS This port provides connection for Domain Name Services DNS Open this port only if mapping to aD NS server not a DNS client BOOTP T hese two ports are required for dynamic host configuration Open this port only if mapping to aD HCP or BOOTP relay server ordinary DHCP BO OTP servers cannot transmit through the WAN port TCP UDP This port provides connection for the Trivial File Transfer Protocol Since TFTP is an unauthenticated protocol exercise caution when mapping this port TCP UDP This port provides connection for Gopher clients Forerunner of HTTP TCP UDP This port provides the Finger service This is used to identify users currently using a system Since this in an unauthenticated service which provides system information exercise caution when using this port TCP UDP This port provides HTTP service connection Open this port only when mapping to HTTP servers TCP UDP Kerberos This port provides connection services
23. ect the language you want 22 3 Click Apply Language Settings Select Language ce E 32 The default is English System Tools Multi Homing provides the following tools which aid in administration of the network System Status This utility displays the current system status It displays the current Network Status Current Routing Table and DHCP clients information The feature shows read only system status and it will not allow you to modify the information It provides a method of inspecting the health of your system Time Setup This utility will setup your system time You can either setup your system time manually or use Network Time Server to synchronize your system clock over the network System Restart This utility is used for restarting Multi Homing System restarts is needed in events of modified important system settings Any saved changes of the system activities will be applied after the system rebooted Factory Default This utility is used for clearing the configuration and resetting it back to original values as it came out of the box Software Update This utility allows the Network Administrator to connect to a server which provides software which can be used to upgrade Multi Homing he software update can also be done on local machine Please check separate information sheet or vendor web site for more details Config Setting This utility is used for backup your current Multi Homing configurations i
24. es Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Company has an on going policy of upgrading its products and it may be possible that information in this document is not up to date Please check with your local distributors for the latest information No part of this document can be copied or reproduced in any form without written consent from the company Trademarks All trade names and trademarks are the properties of their respective companies Copyright 2003 All Rights Reserved Document Version 2 1 Table of Contents WELCOME TO MULTI HOMING SETTING UP THE HARDWARE NETWORKING WITH THE WIZARD UNDERSTANDING THE USER INTERFACE BASIC CONFIGURATION CONNECTION TYPE SET UP CONFIGURING A STATIC IP ADDRESS CONFIGURING A DYNAMIC DHCP ACCOUNT CONFIGURING MULTI HOMING TO USE A ADSL PPPOE ACCOUNT 10 CONFIGURING MULTI HOMING TO USE A PPTP CONNECTION NAT CONFIGURATION DOMAIN NAME SERVICE DNS CONFIGURING THE DNS SERVICE LOAD BALANCE ADVANCED NETWORKING TOOLS MAC CLONING CLONING A MAC ADDRESS DYNAMIC DNS DYNAMIC DNS CONFIGURATION LAN LOCAL AREA NETWORK INTERFACE ROUTER SERVICES SECURITY MODIFYING AN IP ADDRESS OR REMOVING AN POLICY FROM THE INCOMING POLICY LIST MAPPING INTERNAL PORTS TO THE OUTSIDE VIRTUAL SERVER PORT T
25. g tab Under the WAN2 Interface menu item click on IP Address Enter the IP address provided by the ISP in the appropriate text box Enter the netmask of the IP address provided by the ISP in the appropriate text box Enter the default router or gateway information provided by the ISP in the appropriate text box Click on Update Do the rest of setting according to prompt window 3 This option is only available if the connection type is configured to be static Networking WAN Interface WANZ Interface IP Address Connection Type Please input the WAN information provided by ISP IP Address fis2 168 3 3 Netrnask ps 75 2550 ADSL PPTP Gateway fi92 168 3 1 NAT IP Address ADSL PPPoE ONS Settings MAC Cloning ee CONFIGURING A DYNAMIC DHCP ACCOUNT DHCP accounts do not need further configuration However for DHCP accounts with ISPs that restrict IP addresses to specific MAC addresses see the subsection on MAC Cloning in the Advanced Networking Tools section of this chapter CONFIGURING MULTI HOMING TO USE A ADSL PPPOE ACCOUNT 1 Determine the username and password information provided by the ISP Click on the N etworking tab Under the WAN 1 Interface menu item click on ADSL PPPoE Enter the username and password provided by the ISP into the appropriate fields Select the Authentication mode in the drop list Enter AC Name and Service Name provided by ISP Select the appropriate connection
26. ine23 2 Click on the Intranet tab 3 Under the DHCPD menu item click on Fixed MAC IP 4 Enter the MAC address in the appropriate text box separate each hex byte by a colon e g AA BB CC D D EE FF 4 Enter the desired IP address into the appropriate text box Click on Apply DHCP Server Fixed MAC IP Settings This setting will permanently associate the MAC address of a LAN client to an IP address The client is assigned the same IP address every time Changes to a currently assigned LAN client IP will take effect only after expiration of current lease To delete an association clear the MAC address and IP field on the list or click del button to clear relative text entries To create a new association enter the information on the last line You have to click Apply to take all changes effect MAC Address XX XX XX XX XX XX IP Address 00 e0 7d b6 48 72 192 168 1 2 del 23 Refer to the operating system or network interface card manual or reference guide for details 24 If the IP address entered is different from the IP address currently assigned to the LAN client the LAN client must renew its DHCP lease Refer to the operating system manual or reference guide for details 35 A ssigning a Permanent A ddress to a currently running LA N Client Since Multi Homing has a list of currently assigned IP addresses and their corresponding MAC layer addresses it is possible to associate the IP to the MAC address directly
27. l A client computer can therefore be assigned a different IP address every time a lease is renewed If a client machine is a web server FTP server or electronic mail server users will find it difficult to access the services since the machine could change its address on a daily basis Machines that provide Intranet and even port mapped Internet services should have fixed IP addresses Multi Homing provides 2 methods to work with LAN clients that have permanent IP addresses permanent IP address assignments using MAC layer addresses and automatic MAC IP associations from the leased list A ssigning a Permanent A ddress based on the M A C layer address The Machine Access Control Layer MAC layer address is a unique 6 byte number assigned to each network interface card NIC This number is a unique world wide serial number that is stamped onto NICs when they are manufactured Low level network protocols such as DHCP and BOOTP use the MAC layer address to keep track of assigned IP addresses and ensure that assignments do not overlap22 Multi Homing can use the MAC layer address to ensure that a LAN client always gets the same IP address every time it requests for one 21 File Transfer Protocol 22 Overlapped IP addresses can cause unpredictable results are difficult to trouble shoot and may cause service interruptions 34 PERMANENT IP ADDRESS ASSIGNMENT USING MAC LAYER ADDRESSES 1 Determine the MAC address of the target mach
28. n your PC In the case you need to reset Multi Homing back to factory default value you can load the configuration you backup before DISPLAY SYSTEM STATUS Click on the Administration tab Under the System menu item click on System Status It shows the N etwork Status and DHCP client s information SYSTEM TIME Click on the Administration tab Under the System menu item click on Time Setup Select your time zone in the Time Zone selecting box If you choose to use network time server specifying the NTP Server Click on Apply System Time Setting Please check the following method and set the relative values to correct system time Current Time 7 8 2003 7 44 53 Time Zone Germany x Use Time Server RFC 868 Time Server intp0 fau de RESTARTING YOUR SYSTEM 1 Click on the Administration tab 2 Under the System menu item click on System Restart 3 Click on Yes SET FACTORY DEFAULT 1 Click on the Administration tab 2 Under the System menu item click on Factory Default 3 Click on Yes UPDATE YOUR SYSTEM SOFTWARE Click on the Administration tab Under the System menu item click on Software Update Choose either the software update file is in the Internet or on the local host If the file is in the Internet type in the URL If the file is on local host type in the name file with full path or click on Browse button to search the file on local host Click on Apply
29. o offer the service that an outside computer WAN side wishes to reach Once the connection is made all the requests between the outside and local LAN side computers are redirected by Multi Homing to the proper destination This process is completely transparent to the outside computers MAPPING INTERNAL PORTS TO THE OUTSIDE 1 Determine the port number and transmission protocol of the servicels Click on the Security tab Under the Firewall menu item click on Port Mapping Click on Add Enter Service Name ex FTP External Port ex 21 Click on TCP Enter the IP address into Internal H ost ex 192 168 1 22 port ex 21 Click on Enable Press Apply Any request from Internet for port 21 FTP service port to the Multi Homing will be forwarded to LAN client 192 168 1 22 15 See Appendix B for a list of common ports DELETING A RECORD OF PORT MAPPING 1 Determine the port number and transmission protocol of the servicel6 Click on the Security tab Under the Firewall menu item click on Port Mapping Click on Delete beside record you want to delete Press Apply V irtual Server ADDING A RECORD ABOUT VIRTUAL SERVER Click on Virtual Server under Firewall in the Security tab Enter Name ex FTP Enter Port Range ex 12 21 Select TCP UDP ALL ex TCP Enter IP address ex 192 168 1 1 Click on Enable Press Apply Name Port Range IP Address Enable FTP fi i tcp
30. of each port If the LED lights green then the connection speed is 100Mbps off for 10Mbps LINK ACT LED Every port has a LINK ACT LED Steady green link state indicates that the port has good linkage to its associated devices Flashing green indicates that the port is receiving or transmitting data between its associated devices Speed LED ___Link Activity LED Status Off Off No Connection Off Green Connect as 10Mbps Green Green Connect as 100Mbps 46 e FDX COL LED A collision occurs when two stations within a collision domain attempt to transmit data at the same time Intermittent flashing amber of the collision LED is normal the contending adapters resolve each collision by means of a wait then retransmit algorithm Frequency of collisions is an indicator of heavy traffic on the network If the FD X COL lights amber it means the port is under full duplex operation or dark for half duplex mode The following table is a summary of Port LEDs PORTS LED SUMMARY TABLE L Operation SPEED 100Mbps Green 10Mbps Off UNK ACT Link is present Green Activity Blinking Green Full Duplex Amber Half Duplex Off Collision FDXICOL Blinking Amber FACTORY SETTING BUTTON Push the button for 5 seconds the system will return to factory default setting In the meantime system rewrites flash to default value and Status LED halts for a while Approxima
31. on the user can set a keyword list that would block any URL that comprises the keyword This way the user can make the list short making it easier to manage URL BLOCKING 1 Click on the Security tab 2 Under the URL Blocking menu item click on URL Blocking 3 Select Enable on URL Blocking 4 Enter the URL URI List you wish to block 5 6 You may also enter a Keyword List to block access by keyword Click on Apply to start blocking Sire Security AMATA Help URL Blocking Settings URL URI Filer Click del button could clear relative text entries You have to click Apply to take all changes effect URL Blocking C Enable Disable URL 7 URI List now Keyword List new Apply Roset Intranet erage L oal A rea N etwork C omputing Internet style aspects of modern day society Application of the Internet technology within a corporate environment present the same benefits and synergy at amuch more personal scale I l he technology developed for the Internet has revolutionized so many Dubbed Intranets local area networks that leverage technology developed for the World Wide Web provide a wealth of resources to the office Like its global counter part intranets offer the user with fast reliable on line services Unlike its global counter parts intranets that are run behind properly configured firewalls are safe from malicious or unintentional intrusions that cause serious interru
32. ou configure your Multi Homing with true point and click ease This document will provide you with the guidance needed to tailor fit Multi Homing to your own networking needs Thank you for choosing Multi Homing to be part of your networking solution Setting up the Chapter Hardware N etwork cabling made easy ulti Homing is a turnkey solution to connect your home or office to the Internet through a high speed or always on connection The following easy steps will get you hooked up and ready to go onto the Internet 1 Behind the Multi Homing unit locate 6 Ethernet network ports RJ 45 These look like standard phone jacks but wider Connect the wide area network WAN uplink port to the equipment provided by your Internet service provider ISP e g Cable DSL modem or T1 E1 ISDN CSU DSU Connect the local area network LAN port to your office network hub or switch Set up a computer on your LAN to obtain a dynamic IP address please refer to your operating system manual or reference guide for details Obtain an IP address from Multi Homing Start up a Internet browser on your configuration computer and point it to http 192 168 1 1 You should see the graphical user interface G UI screen Congratulations You have completed the hardware configuration requirements for Multi Homing Incidentally you can now add to your title N etwork A dministrator 1 This computer will be referred to
33. ptions or intellectual property loss or damage Dynamic LA N Client C onfiguration LAN side client computers can automatically obtain new IP addresses from Multi Homing through its built in DHCP daemon To achieve this each client computer should be set to acquire IP addresses via dynamic host configuration protocol DHCP or its predecessor the Bootstrap Protocol BootP 8 By default Multi Homing will assign up to 99 IP addresses within the range starting from 192 168 1 2 up to 192 168 1 10019 Once assigned a client computer would retain or lease the IP address for as long as 1 day 7 day max Once the lease expires the client computer can re apply for a new IP address It is possible that the DHCP daemon may assign a different IP address from what was just released In order to guarantee that a LAN side computer gets the same IP address every time see the section on permanent IP address assignment below Caution There should be only one 1 DHCP daemon on your LAN If you are already running another DHCP daemon or server you should disable it before activating Multi Homing DHCP daemon Running more than one DHCP daemon on a LAN can have unpredictable and sometimes difficult to fix consequences 17 Daemons are also sometimes referred to as servers The term daemon is used to denote the program that provides the services The term server can denote either the program that provides the service but is also used to refer to the
34. rator should determine if ICMP replies should be turned off Keeping Stuff out Multi Homing blocks all traffic from WAN side computers from getting into your LAN by default On the other hand LAN clients can connect to any computer that is on the Internet This behavior can be modified to prevent particular or all LAN clients from accessing certain WAN side IP addresses These features are useful for network administrators of offices or households that have policies or guidelines about the proper use of the Internet BLOCKING INDIVIDUAL OR SERVICE PORT OF IP ADDRESSES ON THE INTERNET 1 Click on the Security tab 2 Under the Firewall menu item click on Incoming Policy Enter the IP address and port number or range to be blocked onto the corresponding text box at the bottom of the list marked N ew according the following figure Click combo box and select protocol Click combo box and select PERMIT DENY action Check Enable box to log the event Click on Apply Source IP Source Dest IP Dest mask Port Range mask Part Range 210 201 37 183 2o 192 168 1 3 Po ALL DENY M Enable del 255 255 255 0 j1 255 255 255 0 aooo nable e 10 201 37 188 E0 192 168 1 5 fs mema EE Y v v e 255 255 255 0 fo 255 255 255 0 fs Anal TcP gt PERMIT gt I Enable New Protocol Action log This figure describes all the IP address coming from WAN port will be allowed to access your LAN
35. rotocol Open this port only if mapping to aIMAP3 compliant server LDAP This port provides connection services for Lightweight Directory Access Protocol LDAP Open this port only if mapping to a LDAP server HTTPS This port provides Secure HTTP service connection this port only when mapping to HTTPS servers Open SYSLOG This port provides connection to the SYSLOG daemon this port only when mapping to a server running syslogd Open DHCP Client DHCP Server These two ports are required for dynamic host configuration Open this port only if mapping to aD HCP or BOOTP relay server ordinary DHCP BO OTP servers cannot transmit through the WAN port
36. s change takes effect immediately CONTROLLING WEB ACCESS CONFIGURATION BY IP ADDRESS 29 Determine the IP addresses of the workstations through which the administrator is allowed to log in Click on the Administration tab Under the Authentication menu item click on Access IP Click Enable Disable to activate deactivate WAN access Enter up to three sets of IP addresses or ranges into the appropriate text box30 Click on Apply Access IP Settings By default you can log Into this website from any host on the LAN For WAN access please check Enable in Web Access field For LAN access restriction please enter IP addresses or range of LAN clients allowed to access web management tool WAN Access Enable Disable Format of LAN IP Range o A Single IP address e 9 64 236 16 52 e An address with 4 range 9 64 236 16 52 64 236 16 100 LANIP Submask 192 168 1 1 255 255 255 0 input IP Format Start IP End iP Allowed LANP R a Allowed a P Range rr Allowed LAN IP et ce 29 By default all LAN clients can configure the Multi Homing 30 Make sure that the new IP addresses or range have fixed IP addresses and includes an accessible workstation e g the one you are currently using You might lock yourself out of the system 31 This change takes effect immediately SELETE THE LANGUAGE MODE OF GUI 1 To set up the language mode click the language option 2 Click the language drop list to sel
37. should be restarted to activate the changes Basic Chapter Configuration First things first his chapter covers the use of all the configuration items under the Networking Tab Once configured you should be able to securely access the Internet through your Multi Homing W ide A rea N ework WA N1 The Internet is made up of wide area networks WAN and local area networks LAN Each local area network connects to the Internet through a wide area network The Multi Homing is the gateway used by your LAN to connect to your WAN Your WAN is provided by your Internet service provider ISP using a WAN medium Cable DSL modem or T1 E1 ISDN CSU DSU Y ou will need information provided by your ISP to complete this step Depending on your WAN medium your ISP may provide you with either a static or dynamic DHCP BootP connection This information should be included in the package that came from your ISP Generally if your ISP has provided you with a fixed IP address you have a static IP address If your ISP has provided a username and password you have a PPPoE link If your ISP provided neither an IP address or username password pair you most likely 2 Point to Point Protocol over Ethernet PPPoE is acommon authentication billing mechanism used by ISPs have a DHCP based connection If unsure contact your Internet provider s customer support Dynamic Host Configuration Protocol DHCP based configurations do not
38. t Protocol Action log Accessing to the port 80 HTTP service of WAN IP 210 201 37 199 from LAN IP 192 168 1 33 with port 80 will be allowed Accessing to the port 20 80 of WAN IP 66 218 71 198 from LAN IP 192 168 1 52 with port 20 80 will be allowed L ating Stuff in By default Multi Homing is deployed in firewall mode and will not allow outside computers to reach the LAN unless the connection is initiated by a LAN client Multi Homing empowers network administrators to allow WAN clients to access certain services provided by LAN clients In other words it is possible for WAN side computers to initiate connections provided the Network Administrator allows it This is done through a technique called Port Mapping When computers on the Internet communicate they do so through IP addresses and special numbers called port addresses or simply ports The port determines which service is trying to connect to e g port 802 HTTP Web services Each service 14 Port Mapping is also called Port Address Translation in some contexts also has what is known as a transmission protocol either TCP or UDP To properly use this feature you would need the connection details for the service you wish to open to the Internet Each WAN port LAN IP port group is called arule In addition Multi Homing rules can be further defined to allow or deny connections according to IP address using filters Port Mapping allows Multi Homing to pretend t
39. tasks for him Although the sorcerer concept did not catch on the term daemon became the accepted term 35 At the time this manual was prepared 36 Newer RFCs may be proposed which supersede the RFCs identified in this document 51 Protocol Keyword Description Recommendation TCP UDP Echo This service sends automatic replies to established connections Although this feature is useful it has been used for denial of service attacks This should be kept closed TCP UDP Systat This service sends automatic replies with detailed information about system status Although this feature is useful it can provide malicious users with information to attack a site It is advised to keep this port closed Chargen This service sends automatic replies to established connections Although this feature is useful it has been used for denial of service attacks This should be kept closed FTP DATA CONTROL These two ports are required to provide File Transfer Protocol FTP service Open these ports only if mapping to an FTP server SSH This port provides connection for Secure Shell Secure Telnet SSH provides encrypted connection to SSH servers Open this port only if mapping to a system running an SSH server Telnet This port provides connection for Telnet Before opening this port consider using SSH Open this port only if mapping to a system running Telnet SMTP This port provi
40. tely 60 seconds later the Status LED blinks green periodically now the whole system parameters have returned to factory default value Wamning Incomplete factory setting recovery procedure will cause the AD SL Router malfunction If you are unfortunately in this situation do not try to repair it by yourself Consult your local distributor for help 47 Key Feature Interface Cable Connections Network Data Rate Transmission Mode LED indicators Buffer Memory MAC address System Memory Emission Operating Temperature Operating Humidity Power Supply TEEE802 3 IOBASE T TEEE802 3u 1OOBASE TX TEEE802 3x full duplex operation and flow control 2 10 100 RJ 45 WAN port 4 10 100 RJ 45 Fast Ethernet switching LAN ports RJ 45 LOBASE T Category 3 4 5 UTP STP RJ 45 LOOBASE TX Category 5 UTP STP Ethernet Auto negotiation 1OMbps 100Mbps Auto negotiation Full duplex Half duplex System Power Status Port LAN WAN SPEED LINK ACT FDX COL 1Mbit 2K MAC address entries SMB Flash 16MB RAM FCC Class B CE 0 50 C 32 122 F 10 90 External Power Adapter 12VDC 1000mA Specifying Aea s Internet Addresses Writing Internet A ddresses the M ulti H oming way n Internet protocol address or IP address is used by the Internet to uniquely identify your computer much like the way a postman would use your home address to uniquely identify where to deliver your mail I
41. to 3 DNS IP addresses into their corresponding fields Click on Apply Networking Administration WAN Interface AN1 Domain Name Server Settings Connection Type Please specity the name servers IP addesses your ISP gave to you here IP Address Name Server 1 ADSL PPPOE Name Serer 2 ADSLPPTP NAT Name Server 3 8 DHCP and PPPoE configurations may not require this step L cad Balane Click on Load Balance under WAN2 Interface in the N etworking tab SETTING LOAD BALANCE BY BANDWIDTH 1 Choose Bandwidth in Load Balance by combo box 2 Choose Rate in WAN LWAN 2 combo box ex 50 50 3 Press Apply button SETTING LOAD BALANCE BY IP 1 Enter some IP addresses ex 140 131 50 20 in the text box under Hosts which use WAN 1 Enter some IP addresses ex 211 72 254 6 in the text box under Hosts which use WAN 2 3 Press Apply SETTING LOAD BALANCE BY PORT 1 Click some items under Ports which use WAN 1 2 Click some items under Ports which use WAN 2 3 Press Apply ADDING LOAD BALANCE PREDEFINED PORT 1 Click on Predefined 2 Enter Port Number ex 23 Description ex Telnet and press Apply DELETING LOAD BALANCE PREDEFINED PORT 1 Click on Predefined 2 Choose one pair of item and leave them blank A dvanced N etwork ing Tools Multi Homing provides advanced networking features that aid in deploying the network The crafty Network Adminis
42. trator can find various applications for these tools MAC Cloning Some ISPs audit connections using the MAC addresses These systems only allow registered MAC address to connect to the Internet To circumvent this obstacle Multi Homing provides a MAC Cloning feature which allows the Network Administrator to modify the MAC address that is reported to the ISP This feature facilitates the use of Multi Homing in such environments CLONING A MAC ADDRESS 1 Obtain a registered MAC address to determine the MAC address on a desktop computer refer to the operating system manual Click on the N etworking tab Under the WAN 1 Interface menu item click on MAC Cloning Enter the MAC address obtained in step 1 separate each hex byte by a colon e g AA BB CC D D EE FF Click on Apply 9 Machine Access Control Layer Address MAC Address is a 6 byte 48 bit number used to uniquely identify networking equipment Each network interface card should have a unique MAC address assigned to it by its manufacturer MAC addresses are commonly represented in hexadecimal values ETIA Networking MAEA Help WAN1 Interface WANT MAC Cloning Connection Type Please input the MAC address information aa system needs to soft restart to take effect MOF ADSL PPPoE WAN MAC address 88 1234 46 545 67 changes to ADSL PPTP NAT DNS Sethngs MAC Cloning yy narnic DNS D ynamic D N S Conventional DNS information associates
43. y of the user who intends to use the system Only authorized users should be entrusted with the valid username and password This feature allows the network administrator to manage the users who can change the Multi Homing configuration or use the tools for troubleshooting Users are also authenticated through the LAN clients they access Multi Homing through Users who attempt to access Multi Homing through restricted workstations are denied access Besides you can also choose a language setting Multi Homing currently supports English and Chinese Big 5 CHANGING THE VALID USER AND PASSWORD Click on the Administration tab Under the Authentication menu item click on User Account To change the valid username enter a new username in the appropriate text box To change the password enter new password in both password fields Click on Apply Please provide username and password with a maximum of 20 characters Regularly change username and password to ensure security User who has Read Write access rights Username fadmin maximum 20 characters Password om maximum 20 characters Confirm Password fom User who has Read Only access right Username max maximum 20 characters Password p maximum 20 characters Confirm Password a 27 It is important to choose a good password Several systems are broken into through accounts with weak passwords It is advisable to mix in numbers into the password 28 Thi
44. y to save changes EA Networking intranet _ WANT Interface WAN1 Dynamic DNS Please Input dynamic DNS service Information Dynamic DNS Enable C Disable ADSL PPPoE Serce Pronder Dynarmc DNS Network Sernces dyndns org ADSL PPTP Host Name happy dyn dns org NAT Username hapy ONS S z Password pee OO Enable Wikdeard 7 Mail Exchanger Jabc i23 com dynamic DNS available in selective Service Provider WANZ Interface Apply Reset 10 Multi Homing does not have direct affiliations with the listed service providers an guarantees on the level of service provided by them LAN Local A rea N etwork Interface In this section you specify the IP address that the Multi Homing will use Multi Homing uses 192 168 1 1 as its default address with a netmask of 255 255 255 0 Class C netmask _ This IP is used as the default router for the LAN as well as the Web server address for the Multi Homing configuration interface Multi Homing allows a single Internet account to be shared by several computers This is done through a principle called Network Address Translation or NAT Connection requests from LAN side computers are translated into the single IP address provided through the ISP account Multi Homing tracks each individual LAN client connection in a way that the process is transparent to the LAN side computers The NAT mechanism also provides part of the firewall features of Multi Homing since only LAN si
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