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Linksys HG200 User's Manual

1. el SM Model No HG200 Copyright and Trademarks Specifications are subject to change without notice Linksys is a registered trademark or trademark of Cisco Systems Inc and or its affiliates in the U S and certain other countries Copyright 2005 Cisco Systems Inc All rights reserved Other brands and product names are trademarks or registered trademarks of their respective holders How to Use this Guide Your Guide to the Home Wireless G Gateway has been designed to make understanding networking with the Gateway easier than ever Look for the following items when reading this User Guide This checkmark means there is a Note of interest and is something you should pay special attention to while using the Gateway This exclamation point means there is a Caution or Warning and is something that could damage your property or the Gateway P This question mark provides you with a reminder about something you might need to do while using the Gateway In addition to these symbols there are definitions for technical terms that are presented like this word definition Also each figure diagram screenshot or other image is provided with a figure number and description like this Figure 0 1 Sample Figure Description Figure numbers and descriptions can also be found in the List of Figures section in the Table of Contents HG200 V1 0 UG 50329A J L Table of Contents Chapter 1 Introduction Welcome
2. 0 27 kg 9 6 oz 12VDC 1A CE 09 409C 329 1049 209 709C 49 158 F 82 Operating Humidity Storage Humidity 10 85 Non Condensing 5 90 Non Condensing 83 Appendix l Contact Information Need to contact Linksys Visit us online for information on the latest products and updates to your existing products at http www linksys com international If you experience problems with any Linksys product you can e mail us at In Europe Austria Belgium E mail Address support at glinksys com support be linksys com Denmark support dk linksys com France Germany support fr linksys com support deQlinksys com Italy Supportit linksys com Netherlands Norway Support nl linksys com support noQlinksys com Portugal support pt linksys com Spain Support es linksys com Sweden support seglinksys com Switzerland support ch linksys com United Kingdom amp Ireland support ukQlinksys com Outside of Europe Latin America E mail Address support laglinksys com U S and Canada support linksys com 84
3. not cached ones Click Tools Click Internet Options Click the Security tab Click the Default level button Make sure the security level is Medium or lower Then click the OK button Frequently Asked Questions What is the maximum number of IP addresses that the Gateway will support The Gateway will support up to 253 IP addresses Is IPSec Passthrough supported by the Gateway Yes it is a built in feature that is enabled by default Where is the Gateway installed on the network In a typical environment the Gateway is installed between the ADSL wall jack and the LAN Does the Gateway support IPX or AppleTalk No TCP IP is the only protocol standard for the Internet and has become the global standard for communications IPX a NetWare communications protocol used only to route messages from one node to another and AppleTalk a communications protocol used on Apple and Macintosh networks can be used for LAN to LAN connections but those protocols cannot connect from the Internet to a LAN Does the LAN connection of the Gateway support 100Mbps Ethernet The Gateway supports 100Mbps over the auto sensing Fast Ethernet 10 100 switch on the LAN side of the Gateway 55 What is Network Address Translation and what is it used for Network Address Translation NAT translates multiple IP addresses on the private LAN to one public address that is sent out to the Internet This adds a level of security since the address of a computer co
4. Service Name Enter the name of your PPPoE service in this field User Name and Password Enter the User Name and Password provided by your ISP Connect on Demand Max Idle Time You can configure the Gateway to disconnect the Internet connection after it has been inactive for a specified period of time Max Idle Time If your Internet connection has been terminated due to inactivity Connect on Demand enables the Gateway to automatically re establish your connection as soon as you attempt to access the Internet again To use this option click the Connect on Demand radio button In the Max Idle Time field enter the number of minutes you want to have elapsed before your Internet connection terminates Keep Alive Redial Period If you select this option the Gateway will periodically check your Internet connection If you are disconnected then the Gateway will automatically re establish your connection To use this option click the Keep Alive radio button In the Redial Period field specify how often you want the Gateway to check the Internet connection The default Redial Period is 20 seconds RFC 2364 PPPoA Some DSL based ISPs use PPPoA Point to Point Protocol over ATM to establish Internet connections If you are connected to the Internet through a DSL line check with your ISP to see if they use PPPoA If they do you will have to enable PPPoA User Name and Password Enter the User Name and Password provided by your ISP Connect on D
5. Then click the Modify button To delete a service select it from the list on the right Then click the Delete button When you are finished making changes on the Port Services screen click the Apply button to save changes If you want to cancel your changes click the Cancel button To close the Port Services screen and return to the Access Restrictions screen click the Close button 10 Click the Save Settings button to save the policy s settings To undo the policy s settings click the Cancel Changes button Chapter 5 Configuring the Home Wireless G Gateway The Access Restrictions Tab 11x List of PCs Enter MAC Address of the PCs in this format xoo000000000t MAC 01 00 00 00 00 00 00 MACOS 00 00 00 00 00 00 MAC 02 00 00 00 00 00 00 MAC 06 00 00 00 00 00 00 MAC 03 00 00 00 00 00 00 MACO7 00 00 00 00 00 00 MAC 04 00 00 00 00 00 00 MACOS 00 00 00 00 00 00 Enter the IP Address of the PCs IP 01 192 168 1 J0 IP04 192 168 1 0 IP 02 192 168 1 0 1P 05 192 168 1 0 IP 03 192 168 1 0 IP 06 192 168 1 0 Enter the IP Range of the PCs IP Range 01 192 168 1 0 0 IP Range 02 192 168 1 0 0 Save Settings Cancel Changes Figure 5 25 List of PCs 3h Port Services Microsoft Internet Explorer inl x Service Name DNS Protocol UDP x Port Range 53 53 Add Modify Delete Apply Cancel Close Figure 5 26 Add Edit Service 31 The Appli
6. Connect on Demand Max idle Time 20 Min C Keep Alve Redi Period 20 Sec Figure 5 7 RFC 2364 PPPoA 17 Bridged Mode Only If you are using your Gateway as a bridge which makes the Gateway act like a stand alone modem select Bridged Mode Only All NAT and routing settings are disabled in this mode Optional Settings required by some ISPs Host Name and Domain Name These fields allow you to supply a host and domain name for the Gateway Some ISPs require these names as identification You may have to check with your ISP to see if your broadband Internet service has been configured with a host and domain name In most cases you can leave these fields blank MTU and Size The MTU Maximum Transmission Unit setting specifies the largest packet size permitted for network transmission Select Manual and enter the value desired in the Size field It is recommended that you leave this value in the 1200 to 1500 range By default MTU is configured automatically Network Setup Router IP The values for the Gateway s Local IP Address and Subnet Mask are shown here In most cases keeping the default values will work Local IP Address The default value is 192 168 1 1 Subnet Mask The default value is 255 255 255 0 Network Address Server Settings DHCP Configure the Gateway s Dynamic Host Configuration Protocol DHCP settings in this section Local DHCP Server A Dynamic Host Configuration Protocol DHCP server automatic
7. Disatie Save Settings Cancel Changer Figure 5 32 Management Allowed IP IP Range v P Range es a a a E N O Figure 5 33 Allowed IP IP Range 37 SNMP SNMP is a popular network monitoring and management protocol To enable SNMP click Enabled To disable SNMP click Disabled If enabled then specify the IP address es allowed to have SNMP access Select All to allow all IP addresses with no restrictions IP address to specify a single IP address or IP range to specify a range of IP addresses Device Name Enter the name of the Gateway SNMP v1 v2 Get Community Enter the password that allows read only access to the Gateway s SNMP information Set Community Enter the password that allows read write access to the Gateway s SNMP information Trap Management Trap to Enter the IP address of the remote host computer that will receive the trap messages UPnP UPnP allows Windows Me and XP to automatically configure the Gateway for various Internet applications such as gaming and videoconferencing UPnP To enable UPnP click Enable Otherwise click Disable IGMP Proxy If your multimedia application or device is not working properly behind the Gateway then you can enable IGMP Proxy to allow multicast traffic through the Gateway e IGMP Proxy To use this feature select Enable Otherwise select Disable WLAN Management via WLAN This feature allows the Gateway to be managed by a wireless compute
8. Figure 4 3 Connect the Power Figure 4 4 Connect the ADSL Line Figure 4 5 Connect the Power Figure 5 1 Login Screen Figure 5 2 Basic Setup Figure 5 3 RFC 1483 Bridged Dynamic IP Figure 5 4 RFC 1483 Bridged Static IP Figure 5 5 RFC 1483 Routed Figure 5 6 RFC 2516 PPPoE Figure 5 7 RFC 2364 PPPoA Figure 5 8 Bridged Mode Only Figure 5 9 Optional Settings Figure 5 10 DynDNS org Figure 5 11 TZO com Figure 5 12 Advanced Routing Figure 5 13 Routing Table Figure 5 14 Basic Wireless Settings Figure 5 15 Pre Shared Key Figure 5 16 WEP Figure 5 17 Wireless Network Access Figure 5 18 MAC Address Filter List Figure 5 19 Wireless Client MAC List Figure 5 20 Advanced Wireless Settings Figure 5 21 Security Figure 5 22 Firewall Log Figure 5 23 Internet Access Figure 5 24 Internet Policy Summary Figure 5 25 List of PCs Figure 5 26 Add Edit Service Figure 5 27 Single Port Forwarding Figure 5 28 Port Range Forwarding Figure 5 29 Port Triggering Figure 5 30 DMZ Figure 5 31 QoS Figure 5 32 Management Figure 5 33 Allowed IP IP Range Figure 5 34 Reporting Figure 5 35 System Log Figure 5 36 Ping Test Figure 5 37 Backup amp Restore Figure 5 38 Factory Defaults Figure 5 39 Firmware Upgrade Figure 5 40 Reboot Figure 5 41 Gateway Figure 5 42 Local Network Figure 5 43 DHCP Active IP Table Figure 5 44 ARP RARP Table Figure 5 45 Wireless Figure 5 46 Networked Computers Fi
9. LINKSYS howe Setup LINKSYS home Setup CONS Service DynDNS org gt User None e Password 1 Host Name ES 1 internet P Adress Status Save Setting Cancel Changes Figure 5 10 DynDNS org DONS Service Enei Actress Password Save Setting Cancel Changes Figure 5 11 TZO com 20 The Advanced Routing Tab The Advanced Routing screen allows you to configure the NAT dynamic routing and static routing settings Advanced Routing Operating Mode In this section you will configure the Gateway s general routing settings e NAT NAT is a security feature that is enabled by default It enables the Gateway to translate IP addresses of your local area network to a different IP address for the Internet To disable NAT click the Disabled radio button RIP If you have multiple routers you may want to use the Routing Information Protocol RIP so the routers can exchange routing information with each other To use RIP select the Enabled radio button Otherwise keep the default Disabled e Send Default Route To use RIP version 1 for routing select the Enabled radio button Otherwise keep the default Disabled e Interface This setting is available when you have configured a static route and you need to choose an interface for that route Select the interface that the Gateway will be using LAN Wireless or Internet e Dynamic Routing With Dynamic Routing you can enable the Gate
10. Networks Wireless networks are easy to find Hackers know that in order to join a wireless network wireless networking products first listen for beacon messages These messages can be easily decrypted and contain much of the network s information such as the network s SSID Service Set Identifier Here are the steps you can take Change the administrator s password regularly With every wireless networking device you use keep in mind that network settings SSID WEP keys etc are stored in its firmware Your network administrator is the only person who can change network settings If a hacker gets a hold of the administrator s password he too can change those settings So make it harder for a hacker to get that information Change the administrator s password regularly NOTE Some of these security features are AN available only through the network gateway router or access point Refer to the gateway router or access point s documentation for more information 62 SSID There are several things to keep in mind about the SSID 1 Disable Broadcast 2 Make it unique 3 Change it often Most wireless networking devices will give you the option of broadcasting the SSID While this option may be more convenient it allows anyone to log into your wireless network This includes hackers So don t broadcast the SSID Wireless networking products come with a default SSID set by the factory The Linksys default SSID is l
11. What s in this User Guide Chapter 2 Planning Your Network The Gateway s Functions IP Addresses Chapter 3 Getting to Know the Home Wireless G Gateway Ports and Reset Button on Side Panel LEDs on Side Panel The Bottom Panel Chapter 4 Connecting the Home Wireless G Gateway Overview Wired Connection to a Computer Wireless Connection to a Computer Chapter 5 Configuring the Home Wireless G Gateway Overview How to Access the Web based Utility The Setup Tab The Wireless Tab The Security Tab The Access Restrictions Tab The Applications and Gaming Tab The Administration Tab The Status Tab Appendix A Troubleshooting Common Problems and Solutions Frequently Asked Questions Appendix B Wireless Security Security Precautions Security Threats Facing Wireless Networks WN DN rm p p FP Re SDOWBRBNNFOWO OoN 0 OBB BNP PB Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter Windows 98 or Me Instructions Windows 2000 or XP Instructions Appendix D Upgrading Firmware Appendix E Glossary Appendix F Regulatory Information Appendix G Warranty Information Appendix H Specifications Appendix Contact Information 65 65 66 67 68 15 81 82 84 List of Figures Figure 2 1 Network Figure 3 1 Ports and Reset Button on Side Panel Figure 3 2 LEDs on Side Panel Figure 3 3 Bottom Panel with Stand in Closed Position Figure 3 4 Gateway Using Stand Figure 4 1 Connect the ADSL Line Figure 4 2 Connect a PC
12. any questions 2 Connect a phone cable from the Line port on the Gateway s side panel to the wall jack of the ADSL line A a NOTE Asmall device called a microfilter not included may be necessary between each phone and wall jack to prevent interference Contact your ISP if you have any questions Figure 4 1 Connect the ADSL Line in place If this Gateway is not replacing an existing modem then you will need to purchase a BT approved microfilter NOTE This Gateway is intended to replace your existing ADSL modem that already has a microfilter Co Connect one end of an Ethernet network cable to one of the Ethernet ports on the back of the Gateway and the other end to an Ethernet port on a computer Une SA 4 Repeat this step to connect a switch or other network devices to the Gateway 4 Connect the power adapter to the Gateway s Power port and then plug the power adapter into a power outlet Figure 4 2 Connect a PC NOTE You should always plug the Gateway s power adapter into a power strip with AN surge protection The Power LED on the front panel will light up green as soon as the power adapter is connected properly The m ms Power LED will flash for a few seconds and then it will be solidly lit when the self test is complete If the LED flashes for one minute or longer see Appendix A Troubleshooting 5 Power on one of your computers that is connected to the Gateway Figure 4
13. di seguito Das Produkt kann in allen EU Staaten ohne Einschr nkungen eingesetzt werden sowie in anderen Staaten die der EU Direktive 1995 5 CE folgen mit Au amp nahme der folgenden aufgef hrten Staaten Belgium The Belgian Institute for Postal Services and Telecommunications BIPT must be notified of any outdoor wireless link having a range exceeding 300 meters Please check http www bipt be for more details Draadloze verbindingen voor buitengebruik en met een reikwijdte van meer dan 300 meter dienen aangemeld te worden bij het Belgisch Instituut voor postdiensten en telecommunicatie BIPT Zie http www bipt be voor meer gegevens Les liaisons sans fil pour une utilisation en ext rieur d une distance sup rieure 300 m tres doivent tre notifi es l Institut Belge des services Postaux et des T l communications IBPT Visitez http www ibpt be pour de plus amples d tails France In case the product is used outdoors the output power is restricted in some parts of the band See Table 1 or check http www art telecom fr for more details T Dans la cas d une utilisation en ext rieur la puissance de sortie est limit e pour certaines parties de la bande Reportez vous la table 1 ou visitez http www art telecom fr pour de plus amples d tails Table 1 Applicable Power Levels in France Location Frequency Range MHz Power EIRP Indoor No restrictions No restrictions 2400 28835 2483 5 100 mW 2
14. directions over a single line but only one direction at a time Hardware The physical aspect of computers telecommunications and other information technology devices HTTP HyperText Transport Protocol The communications protocol used to connect to servers on the World Wide Web Infrastructure A wireless network that is bridged to a wired network via an access point IP Internet Protocol A protocol used to send data over a network IP Address The address used to identify a computer or device on a network 70 IPCONFIG A Windows 2000 and XP utility that displays the IP address for a particular networking device IPSec Internet Protocol Security A VPN protocol used to implement secure exchange of packets at the IP layer ISM band Radio bandwidth utilized in wireless transmissions ISP Internet Service Provider A company that provides access to the Internet LAN The computers and networking products that make up your local network LEAP Lightweight Extensible Authentication Protocol A mutual authentication method that uses a username and password system MAC Media Access Control Address The unique address that a manufacturer assigns to each networking device Mbps MegaBits Per Second One million bits per second a unit of measurement for data transmission mIRC An Internet Relay Chat program that runs under Windows Multicasting Sending data to a group of destinations at once NAT Network
15. encapsulation RFC 1483 Bridged Dynamic IP TS IP Settings Select Obtain an IP Address Automatically if your ISP says you are connecting through a dynamic IP address Static IP If you are required to use a permanent static IP address to connect to the Internet then select Use the following IP Address e Internet IP Address This is the Gateway s IP address when seen from the WAN or the Internet Your ISP will provide you with the IP Address you need to specify here e Subnet Mask This is the Gateway s Subnet Mask Your ISP will provide you with the Subnet Mask Tm Gateway Your ISP will provide you with the default Gateway Address which is the ISP server s IP address Primary DNS Required and Secondary DNS Optional Your ISP will provide you with at least one DNS Domain Name System Server IP Address indi Figure 5 4 Encapsulation RFC 1483 Bridged Mutplexng uc C vc Qos Type uBR Pcr Rate D e Scr Rate c Autodetect C Enable Disable Virtual Greut 0 vP Range 0 255 38 VO Range 3265535 Obtain an IP Address Automatically C Use the following IP Address WtemetP Address T o o Subnet Mask Gateway Primary ONS Secondary DNS ro naaa naag agaaa Figure 5 3 RFC 1483 Bridged Dynamic IP Encapsulation RFC 1483 Bridged v Mutplexng uc C vc Goste uen Por Rate D Ser Rete c Autodetect C Enable Disable C Obtain an IP Address Aut
16. or 128 bit shared key algorithm as described in the IEEE 802 11 standard What is a MAC Address The Media Access Control MAC address is a unique number assigned by the manufacturer to any Ethernet networking device such as a network adapter that allows the network to identify it at the hardware level For all practical purposes this number is usually permanent Unlike IP addresses which can change every time a computer logs onto the network the MAC address of a device stays the same making it a valuable identifier for the network 60 How do I reset the Gateway Press the Reset button on the back panel for about ten seconds This will reset the Gateway to its default settings How do I resolve issues with signal loss There is no way to know the exact range of your wireless network without testing Every obstacle placed between the Gateway and a wireless computer will create signal loss Lead glass metal concrete floors water and walls will inhibit the signal and reduce range Start with the Gateway and your wireless computer in the same room and move it away in small increments to determine the maximum range in your environment You may also try using different channels as this may eliminate interference affecting only one channel have excellent signal strength but cannot see my network WEP is probably enabled on the Gateway but not on your wireless adapter or vice versa Verify that the same WEP keys and levels 64
17. or videoconferencing Enabled Disabled To use QoS select Enable Otherwise keep the default Disable Application based QoS Application based QoS manages information as it is transmitted and received Depending on the settings of the QoS screen this feature will assign information a high or low priority for the five preset applications and three additional applications that you specify High priority Medium priority Low priority For each application select High priority traffic on this queue shares 60 of the total bandwidth Medium priority traffic on this queue shares 18 of the total bandwidth or Low priority traffic on this queue shares 1 of the total bandwidth FTP File Transfer Protocol A protocol used to transfer files over a TCP IP network Internet UNIX etc For example after developing the HTML pages for a website on a local machine they are typically uploaded to the web server using FTP HTTP HyperText Transport Protocol The communications protocol used to connect to servers on the World Wide Web Its primary function is to establish a connection with a web server and transmit HTML pages to the client web browser Telnet A terminal emulation protocol commonly used on Internet and TCP IP based networks It allows a user at a terminal or computer to log onto a remote device and run a program SMTP Simple Mail Transfer Protocol The standard e mail protocol on the Internet It is a TCP IP protocol that def
18. the frequency interval of the beacon A beacon is a packet broadcast by the Gateway to synchronize the wireless network e DTIM Interval The default value is 1 This value indicates the interval of the Delivery Traffic Indication Message DTIM A DTIM field is a countdown field informing clients of the next window for listening to broadcast and multicast messages When the Gateway has buffered broadcast or multicast messages for associated clients it sends the next DTIM with a DTIM Interval value Its clients hear the beacons and awaken to receive the broadcast and multicast messages e Fragmentation Threshold This value should remain at its default setting of 2346 It specifies the maximum size for a packet before data is fragmented into multiple packets If you experience a high packet error rate you may slightly increase the Fragmentation Threshold Setting the Fragmentation Threshold too low may result in poor network performance Only minor modifications of this value are recommended e RTS Threshold This value should remain at its default setting of 2347 If you encounter inconsistent data flow only minor modifications are recommended If a network packet is smaller than the preset RTS threshold size the RTS CTS mechanism will not be enabled The Gateway sends Request to Send RTS frames to a particular receiving station and negotiates the sending of a data frame After receiving an RTS the wireless station responds with a Clear to Send
19. to Point Tunneling Protocol PPTP used to enable the operation of a VPN over the Internet To allow L2TP Passthrough click the Enable button To disable L2TP Passthrough click the Disable button Firewall You can enable or disable the firewall select filters to block specific Internet data types and block anonymous Internet requests To use the firewall click Enable If you do not want to use the firewall click Disable Additional Filters Filter Proxy Use of WAN proxy servers may compromise the Gateway s security Denying Filter Proxy will disable access to any WAN proxy servers To enable proxy filtering click the checkbox Filter Cookies A cookie is data stored on your computer and used by Internet sites when you interact with them To enable cookie filtering click the checkbox LINKSYS wm Security VPN Passthrough a setae ces Figure 5 21 Security 28 e Filter J ava Applets J ava is a programming language for websites If you deny ava Applets you run the risk of not having access to Internet sites created using this programming language To enable J ava Applet filtering click the checkbox Filter ActiveX ActiveX is a programming language for websites If you deny ActiveX you run the risk of not having access to Internet sites created using this programming language To enable ActiveX filtering click the checkbox Block WAN Requests Block Anonymous Internet Requests This keeps yo
20. to a computer or other device on the network and the LAN IP address Since a static IP address remains valid until you disable it static IP addressing ensures that the device assigned it will always have that same IP address until you change it Static IP addresses must be unique and are Since the Gateway uses NAT technology the only IP commonly used with network devices such as server computers or print servers address that can be seen from the Internet for your network is the Gateway s Internet IP address However even this Internet IP address can be blocked so that the Gateway and network seem invisible to the Internet see the Block WAN Requests description under Security in Chapter 5 Configuring the Home Wireless G Gateway Since you use the Gateway to share your DSL Internet connection contact your ISP to find out if they have assigned a static IP address to your account If so you will need that static IP address when configuring the Gateway You can get that information from your ISP Dynamic IP Addresses A dynamic IP address is automatically assigned to a device on the network such as computers and print servers These IP addresses are called dynamic because they are only temporarily assigned to the computer or device After a certain time period they expire and may change If a computer logs onto the network or the Internet and its dynamic IP address has expired the DHCP server will automatically assign it
21. wireless encryption protocol that provides dynamic encryption keys for each packet transmitted Topology The physical layout of a network TX Rate Transmission Rate UDP User Datagram Protocol A network protocol for transmitting data that does not require acknowledgement from the recipient of the data that is sent Upgrade To replace existing software or firmware with a newer version Upload To transmit a file over a network URL Uniform Resource Locator The address of a file located on the Internet 73 VPN Virtual Private Network A security measure to protect data as it leaves one network and goes to another over the Internet WAN Wide Area Network The Internet WEP Wired Equivalent Privacy A method of encrypting network data transmitted on a wireless network for greater security WINIPCFG A Windows 98 and Me utility that displays the IP address for a particular networking device WLAN Wireless Local Area Network A group of computers and associated devices that communicate with each other wirelessly WPA Wi Fi Protected Access a wireless security protocol using TKIP Temporal Key Integrity Protocol encryption which can be used in conjunction with a RADIUS server 74 Home Wireless G Gateway Appendix F Regulatory Information Compliance Information for 2 4 GHz Wireless Products Relevant to the EU and Other Countries Following the EU Directive 1999 5 EC R amp TTE Directive Declara
22. 0 o Kk v f n o sb p f r ow fo f v o r J te o vf r 6 w 5 i s f r 8 i s fi r rz EE Save Settings Cancel Changes Figure 5 29 Port Triggering 34 The DMZ Tab The DMZ screen allows one local user to be exposed to the Internet for use of a special purpose service such as Internet gaming and videoconferencing through DMZ Hosting DMZ hosting forwards all the ports for one computer at the same time which differs from Port Range Forwarding which can only forward a maximum of 10 ranges of ports DMZ Hosting This feature allows one local user to be exposed to the Internet for use of a special purpose service such as Internet gaming and videoconferencing To use this feature select Enable To disable DMZ select Disable DMZ Host IP Address To expose one computer enter the computer s IP address To get the IP address of a computer refer to Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes Applications amp Gaming DMZ Hosting C Enable F Disable OMIMosPAdxesr wuaRa U vskirwege is 1 254 a Sear nane Figure 5 30 DMZ 35 The QoS Tab QoS Quality of Service QoS ensures better service to high priority types of network traffic which may involve demanding real time applications such as Internet phone calls
23. 0 100 mW 208m estos LI 2454 100 mW 20 ELLA 2454 2483 5 10 mW 10 dBm Italy This product meets the National Radio Interface and the requirements specified in the National Frequency Allocation Table for Italy Unless operating within the boundaries of the owner s property the use of this 2 4 GHz Wireless LAN product requires a general authorization Please check with http www comunicazioni it it for more details Questo prodotto conforme alla specifiche di Interfaccia Radio Nazionali e rispetta il Piano Nazionale di ripartizione delle frequenze in Italia Se non viene installato all interno del proprio fondo l utilizzo di prodotti Wireless LAN a 2 4 GHz richiede una Autorizzazione Generale Consultare http www comunicazioni it it per maggiori dettagli Product Usage Restrictions This product is designed for indoor usage only Outdoor usage is not recommended This product is designed for use with the included integral or external dedicated antenna s Use of non dedicated or third party antenna s is not recommended and is not supported by Linksys Power Output of Your Device To comply with your country s regulations you may have to change the power output of your wireless device Proceed to the appropriate section for your device Note The power output setting may not be available on all wireless products For more information refer to the documentation on your product s CD or at http www linksys com
24. 3 Connect the Power Go to Chapter 5 Configuring the Home Wireless G Gateway 10 Wireless Connection to a Computer If you want to use a wireless connection to access the Gateway follow these instructions 1 Make sure that all of your network s hardware is powered off including the Gateway and all computers 2 Connect a phone cable from the Line port on the Gateway s back panel to the wall jack of the ADSL line A small device called a microfilter not included may be necessary between each phone and wall jack to prevent interference Contact your ISP if you have any questions NOTE A small device called a microfilter not included may be necessary between each phone and wall jack to prevent interference Contact your ISP if you have any questions IMPORTANT Because the microfilter has an RJ 11 connector except for ISDN users install the microfilter between the Gateway and the wall jack w Connect the power adapter to the Power port and then plug the power adapter into a power outlet The Power LED on the front panel will light up green as soon as the power adapter is connected properly The Power LED will flash for a few seconds and then it will be solidly lit when the self test is complete If the LED flashes for one minute or longer see Appendix A Troubleshooting 4 Power on one of the computers on your wireless network s 5 For initial access to the Gateway through a wireless connection make sure
25. Address Translation NAT technology translates IP addresses of a local area network to a different IP address for the Internet Network A series of computers or devices connected for the purpose of data sharing storage and or transmission between users NNTP Network News Transfer Protocol The protocol used to connect to Usenet groups on the Internet Node A network junction or connection point typically a computer or work station OFDM Orthogonal Frequency Division Multiplexing Frequency transmission that separates the data stream into a number of lower speed data streams which are then transmitted in parallel to prevent information from being lost in transit Packet A unit of data sent over a network Passphrase Used much like a password a passphrase simplifies the WEP encryption process by automatically generating the WEP encryption keys for Linksys products PEAP Protected Extensible Authentication Protocol A mutual authentication method that uses a combination of digital certificates and another system such as passwords 71 Ping Packet INternet Groper An Internet utility used to determine whether a particular IP address is online POP3 Post Office Protocol 3 A standard mail server commonly used on the Internet Port The connection point on a computer or networking device used for plugging in cables or adapters Power over Ethernet PoE A technology enabling an Ethernet network cable to deliver bot
26. CTS frame to acknowledge the right to begin transmission When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes 27 The Security Tab This screen shows the VPN passthrough firewall and filter settings Use these features to enhance the security of your network VPN Passthrough Virtual Private Networking VPN is a security measure that basically creates a secure connection between two remote locations Configure these settings so the Gateway will permit VPN tunnels to pass through IPSec Passthrough Internet Protocol Security IPSec is a suite of protocols used to implement secure exchange of packets at the IP layer To allow IPSec Passthrough click the Enable button To disable IPSec Passthrough click the Disable button PPPoE Passthrough PPPoE Passthrough allows your PC s to use the PPPoE client software provided by your ISP Some ISPs may request that you use this feature on the Gateway To allow PPPoE Passthrough click the Enable button To disable PPPoE Passthrough click the Disable button PPTP Passthrough Point to Point Tunneling Protocol Passthrough is the method used to enable VPN sessions to a Windows NT 4 0 or 2000 server To allow PPTP Passthrough click the Enable button To disable PPTP Passthrough click the Disable button L2TP Passthrough Layering 2 Tunneling Protocol Passthrough is an extension of the Point
27. Gateway s IP address to 192 168 2 1 that should solve the problem Change the Gateway s IP address through the Setup tab of the web interface If you assigned a static IP address to any computer or network device on the network you need to change its IP address accordingly to 192 168 2 Y Y being any number from 1 to 254 Note that each IP address must be unique within the network Your VPN may require port 500 UDP packets to be passed to the computer that is connecting to the IPSec server Refer to Problem 7 need to set up online game hosting or use other Internet applications for details Check the Linksys international website for more information at www linksys com international need to set up a server behind my Gateway and make it available to the public To use a server like a web ftp or mail server you need to know the respective port numbers they are using For example port 80 HTTP is used for web port 21 FTP is used for FTP and port 25 SMTP outgoing and port 110 POP3 incoming are used for the mail server You can get more information by viewing the documentation provided with the server you installed Follow these steps to set up port forwarding through the Gateway s web based utility We will be setting up web ftp and mail servers 1 Access the Gateway s web based utility by going to http 192 168 1 1 or the IP address of the Gateway Go to the Applications and Gaming gt Port Range Forwarding tab 2 En
28. Gateway s Web based Utility Power The Power port is where you will connect the power adapter A IMPORTANT Resetting the Gateway to factory defaults will erase all of your settings including Internet connection wireless and other settings and replace them with the factory defaults Do not reset the Gateway if you want to retain these settings Home Wireless G Gateway LEDs on Side Panel The Gateway s LEDs which indicate network activity are located on the other side panel POWER WIRELESS ETHERNET DSL INTERNET Figure 3 2 LEDs on Side Panel Green The POWER LED lights up when the Gateway is powered on Green The WIRELESS LED lights up whenever there is a successful wireless connection If the LED is flashing the Gateway is actively sending or receiving data to or from one of the devices on the network Green The ETHERNET LED serves two purposes If the LED is continuously lit the Gateway is successfully connected to a device through the Ethernet port If the LED is flashing it is an indication of any network activity Green The DSL LED lights up whenever there is a successful DSL connection The LED blinks while the Gateway is establishing the ADSL connection Green The INTERNET LED lights up green when an Internet connection to the Internet Service Provider ISP is established The INTERNET LED lights up red when the connection to the ISP fails Chapter 3 Getting to Know the Home Wireless G Gate
29. IUS Remote Authentication Dial In User Service utilizes a RADIUS server for authentication and the use of dynamic TKIP AES or WEP A IMPORTANT Always remember that each device in your wireless network MUST use the same encryption method and encryption key or your wireless network will not function properly 63 WPA Pre Shared Key If you do not have a RADIUS server Select the type of algorithm TKIP or AES enter a password in the Pre Shared key field of 8 64 characters and enter a Group Key Renewal period time between 0 and 99 999 seconds which instructs the Gateway or other device how often it should change the encryption keys WPA RADIUS WPA used in coordination with a RADIUS server This should only be used when a RADIUS server is connected to the Gateway or other device First select the type of WPA algorithm TKIP or AES Enter the RADIUS server s IP Address and port number along with a key shared between the device and the server Last enter a Group Key Renewal period which instructs the device how often it should change the encryption keys RADIUS WEP used in coordination with a RADIUS server This should only be used when a RADIUS server is connected to the Gateway or other device First enter the RADIUS server s IP Address and port number along with a key shared between the device and the server Then select a WEP key and a level of WEP encryption and either generate a WEP key through the Passphrase or enter th
30. P Extensible Authentication Protocol A general authentication protocol used to control network access Many specific authentication methods work within this framework EAP PEAP Extensible Authentication Protocol Protected Extensible Authentication Protocol A mutual authentication method that uses a combination of digital certificates and another system such as passwords EAP TLS Extensible Authentication Protocol Transport Layer Security A mutual authentication method that uses digital certificates Encryption Encoding data transmitted in a network Ethernet A networking protocol that specifies how data is placed on and retrieved from a common transmission medium Finger A program that tells you the name associated with an e mail address Firewall A set of related programs located at a network gateway server that protects the resources of a network from users from other networks Firmware The programming code that runs a networking device Fragmentation Breaking a packet into smaller units when transmitting over a network medium that cannot support the original size of the packet FTP File Transfer Protocol A protocol used to transfer files over a TCP IP network Full Duplex The ability of a networking device to receive and transmit data simultaneously Gateway A device that interconnects networks with different incompatible communications protocols Half Duplex Data transmission that can occur in two
31. T PROHIBITED BY LAW IN NO EVENT WILL LINKSYS BE LIABLE FOR ANY LOST DATA REVENUE OR PROFIT OR FOR SPECIAL INDIRECT CONSEQUENTIAL INCIDENTAL OR PUNITIVE DAMAGES REGARDLESS OF THE THEORY OF LIABILITY INCLUDING NEGLIGENCE ARISING OUT OF OR RELATED TO THE USE OF OR INABILITY TO USE THE PRODUCT INCLUDING ANY SOFTWARE EVEN IF LINKSYS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES IN NO EVENT WILL LINKSYS LIABILITY EXCEED THE AMOUNT PAID BY YOU FOR THE PRODUCT The foregoing limitations will apply even if any warranty or remedy provided under this Agreement fails of its essential purpose Some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to You This Warranty is valid and may be processed only in the country of purchase Please direct all inquiries to Linksys P O Box 18558 Irvine CA 92623 81 Appendix H Specifications Model Number Standards Ports Button Cabling Type LEDs Transmit Power UPnP able cert Security Features WEP Key Bits Dimensions Unit Weight Power Certifications Operating Temp Storage Temp HG200 v1 0 IEEE 802 119 IEEE 802 11b IEEE 802 3u G 992 1 G dmt G 992 2 G lite G 922 3 G 992 5 T1 413i2 Power Line ADSL Ethernet Reset UDP CAT 5 or better Power Wireless Ethernet DSL Internet 18 dBm Able WEP 64 128 140 mm x 140 mm x 27 mm 5 51 Xx 5 51 x 1 06
32. This appendix explains the risks of wireless networking and some solutions to reduce the risks Appendix C Finding the MAC Address and IP Address for your Ethernet Adapter This appendix describes how to find the MAC address for your computer s Ethernet adapter so you can use the MAC filtering and or MAC address cloning feature of the Gateway Appendix D Upgrading Firmware This appendix instructs you on how to upgrade the firmware on the Gateway if you should need to do so Appendix E Glossary This appendix gives a brief glossary of terms frequently used in networking Appendix F Specifications This appendix provides the technical specifications for the Gateway Appendix G Warranty Information This appendix supplies the warranty information for the Gateway Appendix H Regulatory Information This appendix supplies the regulatory information regarding the Gateway Appendix I Contact Information This appendix provides contact information for a variety of Linksys resources including Technical Support Chapter 2 Planning Your Network The Gateway s Functions A Gateway is a network device that connects two networks together In this instance the Gateway connects your Local Area Network LAN or the group of computers in your home or office to the Internet The Gateway processes and regulates the data that travels between these two networks The Gateway s NAT feature protects your network of computers so users on the public In
33. Windows 2000 1 Click Start Settings and Control Panel Double click Network and Dial Up Connections 2 Right click the Local Area Connection that is associated with the Ethernet adapter you are using and select the Properties option 3 In the Components checked are used by this connection box highlight Internet Protocol TCP IP and Click the Properties button Select Use the following IP address option 4 Enter a unique IP address that is not used by any other computer on the network connected to the Gateway 5 Enterthe Subnet Mask 255 255 255 0 6 Enterthe Default Gateway 192 168 1 1 Gateway s default IP address 4 2 For 8 9 Toward the bottom of the window select Use the following DNS server addresses and enter the Preferred DNS server and Alternative DNS server provided by your ISP Contact your ISP or go on its website to find the information Click the OK button in the Internet Protocol TCP IP Properties window and click the OK button in the Local Area Connection Properties window Restart the computer if asked Windows XP The following instructions assume you are running Windows XP with the default interface If you are using the Classic interface where the icons and menus look like previous Windows versions please follow the instructions for Windows 2000 1 2 3 4 Click Start and Control Panel Click the Network and Internet Connections icon and then the Network Connections i
34. a new dynamic IP address DHCP Dynamic Host Configuration Protocol Servers Computers and other network devices using dynamic IP addressing are assigned a new IP address by a DHCP server The computer or network device obtaining an IP address is called the DHCP client DHCP frees you from having to assign IP addresses manually every time a new user is added to your network A DHCP server can either be a designated computer on the network or another network device such as the Gateway By default the Gateway s DHCP Server function is enabled If you already have a DHCP server running on your network you must disable one of the two DHCP servers If you run more than one DHCP server on your network you will experience network errors such as conflicting IP addresses To disable DHCP on the Gateway see the DHCP section in Chapter 5 Configuring the Home Wireless G Gateway Chapter 3 Getting to Know the Home Wireless G Gateway Ports and Reset Button on Side Panel The Gateway s ports and Reset button are located on a side panel Figure 3 1 Ports and Reset Button on Side Panel Line The Line port connects to the ADSL line Ethernet The Ethernet port connects to your computer or other network device Reset Button There are two ways to reset the Gateway s factory defaults Either press the Reset Button for approximately ten seconds or restore the defaults from the Factory Defaults screen of the Administration tab in the
35. ain alternatives Direct Sequence Spread Spectrum DSSS and Frequency Hopping Spread Spectrum FHSS What is DSSS What is FHSS And what are their differences Frequency Hopping Spread Spectrum FHSS uses a narrow band carrier that changes frequency in a pattern that is known to both transmitter and receiver Properly synchronized the net effect is to maintain a single logical channel To an unintended receiver FHSS appears to be short duration impulse noise Direct Sequence Spread Spectrum DSSS generates a redundant bit pattern for each bit to be transmitted This bit pattern is called a chip or chipping code The longer the chip the greater the probability that the original data can be recovered Even if one or more bits in the chip are damaged during transmission statistical techniques embedded in the radio can recover the original data without the need for retransmission To an unintended receiver DSSS appears as low power wideband noise and is rejected ignored by most narrowband receivers Will the information be intercepted while it is being transmitted through the air WLAN features two fold protection in security On the hardware side as with Direct Sequence Spread Spectrum technology it has the inherent security feature of scrambling On the software side WLAN offers the encryption function WEP to enhance security and access control What is WEP WEP is Wired Equivalent Privacy a data privacy mechanism based on a 64 bit
36. ally assigns an IP address to each computer on your network for you Unless you already have one it is highly recommended that you leave the Gateway enabled as a DHCP server You can also use the Gateway in DHCP Relay mode DHCP Relay Server If you enable the DHCP Relay mode for the Local DHCP Server setting enter the IP address for the DHCP server in the fields provided Starting IP Address Enter a value for the DHCP server to start with when issuing IP addresses This value must be 192 168 1 2 or greater because the default IP address for the Gateway is 192 168 1 1 Maximum Number of DHCP Users Enter the maximum number of users clients that can obtain an IP address The number will vary depending on the starting IP address entered Internet Connection Type VC Settings Optional Settings required by some ISPs Encapsutstion Bridge Mode Only Mutiplexing uc vc Goste uBR z Por Rate ope Scr Rate es Autodetect C Enable Disable Host Name Domainname mu Ato z Sre 14527 Figure 5 8 Bridged Mode Only Optional Settings required by some ISPs Network Setup Router IP Network Address Server Settings DHCP Time Setting Host Name Domain Name MTU Auto hd Size 149 Local iP Address 192 fies 1 i Subnet Mask 255 255 255 0 z Local DHCP Server Enable C Disable C DHCP Relay DHCP Relay Server f Starting IP Address 492 168 1 64 Maximum Number
37. ave Settings button to apply your changes or Cancel Changes to cancel your changes Click the appropriate option Deny or Allow depending on whether you want to block or allow Internet access for the PCs you listed on the List of PCs screen Decide which days and what times you want this policy to be enforced Select the individual days during which the policy will be in effect or select Everyday Then enter a range of hours and minutes during which the policy will be in effect or select 24 Hours If you want to block websites with specific URL addresses enter each URL in a separate field next to Website Blocking by URL Address If you want to block websites using specific keywords enter each keyword in a separate field next to Website Blocking by Keyword You can filter access to various services accessed over the Internet such as FTP or telnet by selecting services from the drop down menus next to Blocked Services Then enter the range of ports you want to filter If the service you want to block is not listed or you want to edit a service s settings then click the Add Edit Service button Then the Port Services screen will appear To add a service enter the service s name in the Service Name field Select its protocol from the Protocol drop down menu and enter its range in the Port Range fields Then click the Add button To modify a service select it from the list on the right Change its name protocol setting or port range
38. ay to get the information on what port services to use is to go to the website of the online game or application you want to use Follow these steps to set up online game hosting or use a certain Internet application 1 Access the Gateway s web interface by going to http 192 168 1 1 or the IP address of the Gateway Go to the Applications and Gaming gt Port Range Forwarding tab 2 Enter any name you want to use for the Customized Application 3 Enter the External Port range of the service you are using For example if you want to host Unreal Tournament UT you would enter the range 7777 to 27900 4 Check the protocol you will be using TCP and or UDP 5 Enter the IP address of the computer or network device that you want the port server to go to For example if the web server s Ethernet adapter IP address is 192 168 1 100 you would enter 100 in the field provided Check Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter for details on getting an IP address 6 Check the Enable option for the port services you want to use Consider the example below Customized Application External Port TCP UDP IP Address Enable UT 7777 to 27900 X 192 168 1 100 X gt lt Halflife 27015 to 27015 X X 192 168 1 105 X PC Anywhere 5631 to 5631 X 192 168 1 102 X VPN IPSEC 500 to 500 X 192 168 1 100 X When you have completed the configuration click the Save Settings button 8 can t get the Internet game se
39. b m un citiem ar to Latvian saist tajiem noteikumiem Lietuvi is renginys tenkina 1999 5 EB Direktyvos esminius reikalavimus ir kitas Lithuanian ios direktyvos nuostatas Appendix F Regulatory Information 75 Home Wireless G Gateway Nederlands Dit apparaat voldoet aan de essentiele eisen en andere van toepassing zijnde Dutch bepalingen van de Richtlijn 1999 5 EC Malti Dan l apparat huwa konformi mal ti iet essenzjali u l provedimenti l o ra Maltese rilevanti tad Direttiva 1999 5 EC Margyar Ez a k sz l k teljes ti az alapvet k vetelm nyeket s m s 1999 5 EK Hungarian ir nyelvben meghat rozott vonatkoz rendelkez seket Norsk Dette utstyret er i samsvar med de grunnleggende krav og andre relevante Norwegian bestemmelser i EU direktiv 1999 5 EF Polski Urz dzenie jest zgodne z og lnymi wymaganiami oraz szczeg lnymi Polish warunkami okre lonymi Dyrektyw UE 1999 5 EC Portugu s Este equipamento est em conformidade com os requisitos essenciais e Portuguese outras provis es relevantes da Directiva 1999 5 EC Slovensko Ta naprava je skladna z bistvenimi zahtevami in ostalimi relevantnimi Slovenian pogoji Direktive 1999 5 EC Slovensky Toto zariadenie je v zhode so z kladn mi po iadavkami a in mi Slovak pr slu n mi nariadeniami direktiv 1999 5 EC Suomi T m laite t ytt direktiivin 1999 5 EY olennaiset vaatimukset ja on siin Finnish asetettujen muiden
40. cations and Gaming Tab LINKSYS howe The Single Port Forwarding Tab PA amp Gaming Single Port Forwarding Use the Single Port Forwarding screen when you want to open a specific port so users on the Internet can see the PML pac ORR T protocol Ade Embled servers behind the Gateway such servers may include FTP or e mail servers When users send this type of c ES ia S request to your network via the Internet the Gateway will forward those requests to the appropriate computer FR E m mes eeB or Any computer whose port is being forwarded should have its DHCP client function disabled and should have a Telnet mz me or new static IP address assigned to it because its IP address may change when using the DHCP function m ua RTL Finer p m We me r e Port Map List In this section you will customize the port service for your applications WE fT OOPS wwe or POP 10 110 TCP s mef r i 7 x i r i mre firs fis fiers mw r Application Enter the name of the application in the field provided RE I Ae OOPS ee r ys 1 i REE ose r External Port and Internal Port Enter the External and Internal Port numbers am TPs wwe r Protocol Select the protocol you wish to use for each application TCP or UDP wd Ad mme ism cent e JP Address Enter the IP Add fth iat ter essen Ope e opns Figure 5 27 Single Port Forwarding Enabled Click Enabled to enable forwarding fo
41. ckets of information before allowing them to enter the network firewall Security measures that protect the resources of a local network from intruders nat network address translation NAT technology translates IP addresses of a local area network toa different IP address for the Internet network a series of computers or devices connected for the purpose of data sharing storage and or transmission between users lan local area network The computers and networking products that make up the network in your home or office What s in this User Guide This user guide covers the steps for setting up and using the Home Wireless G Gateway Chapter 1 Introduction This chapter describes applications of the Home Wireless G Gateway and this User Guide Chapter 2 Planning Your Network This chapter describes the basics of networking Chapter 3 Getting to Know the Home Wireless G Gateway This chapter describes the physical features of the Gateway Chapter 4 Connecting the Home Wireless G Gateway This chapter instructs you on how to connect the Gateway to your network Chapter 5 Configuring the Home Wireless G Gateway This chapter explains how to use the Web based Utility to configure the settings on the Gateway Appendix A Troubleshooting This appendix describes some problems and solutions as well as frequently asked questions regarding installation and use of the Home Wireless G Gateway Appendix B Wireless Security
42. con Right click the Local Area Connection that is associated with the Ethernet adapter you are using and select the Properties option In the This connection uses the following items box highlight Internet Protocol TCP IP Click the Properties button Enter a unique IP address that is not used by any other computer on the network connected to the Gateway Enter the Subnet Mask 255 255 255 0 Enter the Default Gateway 192 168 1 1 Gateway s default IP address Toward the bottom of the window select Use the following DNS server addresses and enter the Preferred DNS server and Alternative DNS server provided by your ISP Contact your ISP or go on its website to find the information Click the OK button in the Internet Protocol TCP IP Properties window Click the OK button in the Local Area Connection Properties window want to test my Internet connection A Check your TCP IP settings For Windows 98 Me 2000 and XP Refer to Windows Help for details Make sure Obtain IP address automatically is selected in the settings For Windows NT 4 0 Click Start Settings and Control Panel Double click the Network icon Click the Protocol tab and double click on TCP IP Protocol When the window appears make sure you have selected the correct Adapter for your Ethernet adapter and set it for Obtain an IP address from a DHCP server Click the OK button in the TCP IP Protocol Properties window and click the Close button in the Netwo
43. data from the Internet The Maximum Transmission Unit MTU setting may need to be adjusted By default the MTU is set automatically e Ifyou are having some difficulties perform the following steps 1 2 3 4 To connect to the Gateway go to the web browser and enter http 192 168 1 1 or the IP address of the Gateway Enter the username and password if asked The default username and password is admin Look for the MTU option and select Manual In the Size field enter 1492 Click the Save Settings button to continue e f your difficulties continue change the Size to different values Try this list of values one value at a time in this order until your problem is solved 1462 1400 1362 1300 16 The Power LED flashes continuously The Power LED lights up when the device is first powered up In the meantime the system will boot up itself and check for proper operation After finishing the checking procedure the LED remains steady to show that the system is working fine If the LED continues to flash after this time the device is not working properly Try to flash the firmware by assigning a static IP address to the computer and then upgrade the firmware Try using the following settings IP Address 192 168 1 50 and Subnet Mask 255 255 255 0 17 When I enter a URL or IP address get a time out error or am prompted to retry e Check if other computers work If they do ensure that your computer s IP settings are c
44. ddress Enter the IP Address of the appropriate computer Enable Click the Enable checkbox to enable forwarding for the chosen application When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes 33 The Port Triggering Tab Port Triggering is used for special applications that can request a port to be opened on demand For this feature the Gateway will watch outgoing data for specific port numbers The Gateway will remember the IP address of the computer that sends a transmission requesting data so that when the requested data returns through the Gateway the data is pulled back to the proper computer by way of IP address and port mapping rules Application Enter the name you wish to give each application Triggered Range Enter the starting and ending port numbers of the Triggered Range Forwarded Range Enter the starting and ending port numbers of the Forwarded Range Enable Click the Enable checkbox to enable port triggering for the chosen application When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes Linksys hone Applications amp Gaming Triggered Range Forwarded Range Application Sart Port Ind Port Stet port ind Pert Enable o f sf r 5 f s p r 6 f to fi r
45. ded that you change the default username to one of your choice Gateway Password It is recommended that you change the default password admin to one of your choice e Re enter to confirm Re enter the Gateway s new Password to confirm it Remote Gateway Access This feature allows you to access the Gateway from a remote location via the Internet Remote Management This feature allows you to manage the Gateway from a remote location via the Internet To enable Remote Management click Enable IMPORTANT Enabling remote management allows anyone with your password to configure the A Gateway from somewhere else on the Internet Management Port Enter the port number you will use to remotely access the Gateway Allowed IP Specify the IP address es allowed to remotely manage the Gateway To allow all IP addresses with no restrictions select All To specify a single IP address select IP address and enter the IP address in the fields provided To specify a range of IP addresses select IP range and enter the range of IP addresses in the fields provided Remote Upgrade This feature allows the Gateway s firmware to be upgraded remotely by a TFTP server To enable Remote Upgrade click Enable LINKSYSA A pome Administration Local Gateway Access Remte Gataway Acenan Reencte lpgrade IGMP Presey Recto micagaeact C fnabin Disable tro ps Bes 7 iow F tnable Disat e Management vm WLAM enable C
46. devices communicating directly with each other peer to peer without the use of an access point AES Advanced Encryption Standard A security method that uses symmetric 128 bit block data encryption Backbone The part of a network that connects most of the systems and networks together and handles the most data Bandwidth The transmission capacity of a given device or network Beacon Interval Data transmitted on your wireless network that keeps the network synchronized Bit A binary digit Boot To start a device and cause it to start executing instructions Bridge A device that connects different networks Broadband An always on fast Internet connection Browser An application program that provides a way to look at and interact with all the information on the World Wide Web Buffer A shared or assigned memory area that is used to support and coordinate different computing and networking activities so one isn t held up by the other Byte A unit of data that is usually eight bits long 68 Cable Modem A device that connects a computer to the cable television network which in turn connects to the Internet CSMA CA Carrier Sense Multiple Access Collision Avoidance A method of data transfer that is used to prevent data collisions CTS Clear To Send A signal sent by a wireless device signifying that it is ready to receive data Daisy Chain A method used to connect devices in a series one after the
47. e Internet connection and network settings on this screen DDNS To enable the Gateway s Dynamic Domain Name System DDNS feature complete the fields on this screen e Advanced Routing On this screen you can alter NAT and routing configurations Wireless Basic Wireless Settings You can choose your wireless network settings on this screen Wireless Security Configure your wireless security settings on this screen Wireless Access This screen lets you control access to your wireless network e Advanced Wireless Settings On this screen you can access the advanced wireless network settings HAVE YOU Enabled TCP IP on your A computers Computers communicate over the network with this protocol Refer to Windows Help for more information on TCP IP NOTE For added security you should change AN the password through the Administration tab 12 Security On this screen you can disable or enable the firewall set up filters block WAN requests and enable or disable Virtual Private Networks VPN PassThrough vpn virtual private network a security Access Restrictions network and goes to another over the Internet measure to protect data as it leaves one Internet Access This screen allows you to control the Internet usage and traffic on your local network Applications amp Gaming Single Port Forwarding Use this screen to set up common services or applications that require forwarding on a single port Port Ra
48. e WEP key manually Implementing encryption may have a negative impact on your network s performance but if you are transmitting sensitive data over your network encryption should be used These security recommendations should help keep your mind at ease while you are enjoying the most flexible and convenient technology Linksys has to offer 64 Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter This section describes how to find the MAC address for your computer s Ethernet adapter so you can use the MAC filtering feature of the Gateway You can also find the IP address of your computer s Ethernet adapter This IP address is used for the Gateway s filtering forwarding and or DMZ features Follow the steps in this appendix to find the adapter s MAC or IP address in Windows 98 Me 2000 or XP Windows 98 or Me Instructions l Click Start and Run In the Open field enter winipcfg Then press the Enter key or the OK button 2 When the IP Configuration screen appears select the Ethernet adapter you have connected to the Gateway via a CAT 5 Ethernet network cable See Figure C 1 3 Write down the Adapter Address as shown on your computer screen see Figure C 2 This is the MAC address for your Ethernet adapter and is shown in hexadecimal as a series of numbers and letters The MAC address Adapter Address is what you will use for MAC filtering The example in Figure D 2 shows the Ethernet adapters s MAC addre
49. e the following information the Connection Login Type Interface IP Address Subnet Mask Default Gateway DNS 1 2 and 3 server IP addresses and WINS address DHCP Renew Click the DHCP Renew button to replace the Gateway s current IP address with a new IP address DHCP Release Click the DHCP Release button to delete the Gateway s current IP address Click the Refresh button if you want to refresh the displayed information Retresh Figure 5 41 Gateway 43 The Local Network Tab The Local Network information that is displayed is the local Mac Address IP Address Subnet Mask DHCP Server Start IP Address and End IP Address To view the DHCP Clients Table click the DHCP Clients Table button To view the ARP RARP Table click the ARP RARP Table button DHCP Clients Table The DHCP Active IP Table shows the current DHCP Client data You will see the computer name IP address MAC address and expiration time of the dynamic IP address for the wireless clients using the DHCP server This data is stored in temporary memory and changes periodically Click the Refresh button if you want to refresh the displayed information To delete a client from the DHCP server select the client and then click the Delete button Click the Close button to return to the Local Network screen ARP RARP Table The ARP RARP Table shows the current data for the local network clients that have sent an ARP request to the Gateway You will see thei
50. ed Wireless Settings Tab LINKSYSA powe Advanced Wireless Wireless On this screen you can access the advanced wireless features including Authentication Type Control TX Rate Beacon Interval DTIM Interval Fragmentation Threshold and RTS Threshold e Authentication Type The default is set to Auto which allows either Open System or Shared Key authentication to be used For Open System authentication the sender and the recipient do not use a WEP key for authentication but can use WEP for data encryption To only allow Open System authentication select NE Open System For Shared Key authentication the sender and recipient use a WEP key for both authentication and data encryption To only allow Shared Key authentication select Shared Key It is recommended that this Figure 5 20 Advanced Wireless Settings option be left in the default Auto mode because some clients cannot be configured for Shared Key Save Settings Cancet Changes Control Tx Rates The default transmission rate is Auto The rate should be set depending on the speed of your wireless network Select from a range of transmission speeds or keep the default setting Auto to have the Gateway automatically use the fastest possible data rate and enable the Auto Fallback feature Auto Fallback will negotiate the best possible connection speed between the Gateway and a wireless client Beacon Interval The default value is 100 The Beacon Interval value indicates
51. efer to the product s documentation for more information 79 Technical Documents on www linksys com international Follow these steps to access technical documents Browse to http www linksys com international Click the region in which you reside Click the name of the country in which you reside Click Products Click the appropriate product category Select a product ST eGo Note If you have questions regarding the compliance of these products or you cannot find the information you are looking for please contact your local sales office Visit http www linksys com international for more details Click the type of documentation you want The document will automatically open in PDF format 80 Appendix G Warranty Information Linksys warrants to You that for a period of two years the Warranty Period your Linksys Product will be substantially free of defects in materials and workmanship under normal use Your exclusive remedy and Linksys entire liability under this warranty will be for Linksys at its option to repair or replace the Product or refund Your purchase price less any rebates This limited warranty extends only to the original purchaser If the Product proves defective during the Warranty Period call Linksys Technical Support in order to obtain a Return Authorization Number if applicable BE SURE TO HAVE YOUR PROOF OF PURCHASE ON HAND WHEN CALLING If You are requested to return the Product mark the Return A
52. emand Max Idle Time You can configure the Gateway to disconnect the Internet connection after it has been inactive for a specified period of time Max Idle Time If your Internet connection has been terminated due to inactivity Connect on Demand enables the Gateway to automatically re establish your connection as soon as you attempt to access the Internet again To use this option click the Connect on Demand radio button In the Max Idle Time field enter the number of minutes you want to have elapsed before your Internet connection terminates Keep Alive Redial Period If you select this option the Gateway will periodically check your Internet connection If you are disconnected then the Gateway will automatically re establish your connection To use this option click the Keep Alive radio button In the Redial Period field specify how often you want the Gateway to check the Internet connection The default Redial Period is 20 seconds Encepsuletion RFC2516 PPPoE Mutiplexing uc vc own BR Pcr Rate D o Scr Rate D e Autodetect C Enable Disable Connect on Demand Max idle Time 20 Min Keep Alve Redial Period Sec Figure 5 6 RFC 2516 PPPoE internet Connection Type VC Settings Encapsulation RFC2364PPPoA v Mutglexng C uc vc ewe JUBA Pcr Rate 0 coe Sor Rete eps Aufodetect C Enable Disable Vitusi Circuit 0 VPI Range 0 255 35 VCI Range 3265535 User Name J Password 4
53. ernet Adapter to verify that your computer has an IP Address Subnet Mask Gateway and DNS 2 Seta static IP address on your system refer to Problem 1 need to set a static IP address 49 5 3 Refer to Problem 10 am a PPPoE user and need to remove the proxy settings or the dial up pop up window can t get my Virtual Private Network VPN working through the Gateway Access the Gateway s web interface by going to http 192 168 1 1 or the IP address of the Gateway and go to the Security tab Make sure you have IPsec passthrough and or PPTP pass through enabled VPNs that use IPSec with the ESP Encapsulation Security Payload known as protocol 50 authentication will work fine At least one IPSec session will work through the Gateway however simultaneous IPSec sessions may be possible depending on the specifics of your VPNs VPNs that use IPSec and AH Authentication Header known as protocol 51 are incompatible with the Gateway AH has limitations due to occasional incompatibility with the NAT standard Change the IP address for the Gateway to another subnet to avoid a conflict between the VPN IP address and your local IP address For example if your VPN server assigns an IP address 192 168 1 X X is a number from 1 to 254 and your local LAN IP address is 192 168 1 X X is the same number used in the VPN IP address the Gateway will have difficulties routing information to the right location If you change the
54. es for wireless computers or clients click the Wireless Client MAC List button The Wireless Client MAC List screen will list computers their IP addresses and their MAC addresses Click the Refresh button to get the most up to date information Click the Enable MAC Filter checkbox To add a specific computer to the Mac Address Filter List click the Enable MAC Filter checkbox and then the Update Filter List button Click the Close button to return to the Wireless Client MAC List screen On the Wireless Client MAC List screen click the Save Settings button to save this list or click the Cancel Changes button to remove your entries When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes LINKSYS pome Wireless EEE tite emsan Figure 5 17 Wireless Network Access MAC Address Filter List Enter MAC Address Format 200000000000610 20300300 30 0 MAC 01 MAC 11 MAC 02 MAC 12 MAC 03 MAC 13 MAC 04 MAC 14 MAC 05 MAC 15 MAC 06 MAC 16 MAC 07 MAC 17 MAC 08 MAC 18 MAC 09 MAC 19 MAC 10 MAC 20 Wireless Client MAC List Save Settings Cancel Changes Figure 5 18 MAC Address Filter List Wireless Client MAC List Refresh Computer Name IP Address MAC Address Enable MAC Filter Updote Filter List Close Figure 5 19 Wireless Client MAC List 26 The Advanc
55. et segment of professionals who work at home or in small offices SPI Stateful Packet Inspection Firewall A technology that inspects incoming packets of information before allowing them to enter the network 72 Spread Spectrum Wideband radio frequency technique used for more reliable and secure data transmission SSID Service Set IDentifier Your wireless network s name Static IP Address A fixed address assigned to a computer or device that is connected to a network Static Routing Forwarding data in a network via a fixed path Subnet Mask An address code that determines the size of the network Switch 1 A data switch that connects computing devices to host computers allowing a large number of devices to share a limited number of ports 2 A device for making breaking or changing the connections in an electrical circuit TCP Transmission Control Protocol A network protocol for transmitting data that requires acknowledgement from the recipient of data sent TCP IP Transmission Control Protocol Internet Protocol A set of instructions PCs use to communicate over a network Telnet A user command and TCP IP protocol used for accessing remote PCs TFTP Trivial File Transfer Protocol A version of the TCP IP FTP protocol that has no directory or password capability Throughput The amount of data moved successfully from one node to another in a given time period TKIP Temporal Key Integrity Protocol a
56. gure 5 47 DSL Connection Figure C 1 IP Configuration Screen Figure C 2 MAC Address Adapter Address Figure C 3 MAC Address Physical Address Figure D 1 Firmware Upgrade Chapter 1 Introduction Welcome Thank you for choosing the Home Wireless G Gateway This Gateway will provide your computers with a high speed Internet connection as well as resources including files and printers Since the Gateway is wireless Internet access can be shared over the wired network as well as the wireless broadcast at up to 11Mbps for Wireless B or up to 54Mbps for Wireless G How does the Gateway do all of this By connecting the Internet as well as your computers and peripherals to the Gateway then the Gateway can direct and control communications for your network To protect your data and privacy the Gateway features an advanced firewall to keep out Internet intruders Wireless transmissions can be protected by powerful data encryption In addition you can safeguard your family with parental control features such as Internet access restrictions and keyword blocking You can configure the Gateway s settings through the easy to use browser based utility But what does all of this mean Networks are useful tools for sharing Internet access and computer resources You can access one printer from different computers and access data located on another computer s hard drive Networks are even used for playing multiplayer video games So networks not o
57. h data and power PPPoE Point to Point Protocol over Ethernet A type of broadband connection that provides authentication username and password in addition to data transport PPTP Point to Point Tunneling Protocol A VPN protocol that allows the Point to Point Protocol PPP to be tunneled through an IP network This protocol is also used as a type of broadband connection in Europe Preamble Part of the wireless signal that synchronizes network traffic RADIUS Remote Authentication Dial In User Service A protocol that uses an authentication server to control network access RJ 45 Registered J ack 45 An Ethernet connector that holds up to eight wires Roaming The ability to take a wireless device from one access point s range to another without losing the connection Router A networking device that connects multiple networks together RTS Request To Send A networking method of coordinating large packets through the RTS Threshold setting Server Any computer whose function in a network is to provide user access to files printing communications and other services SMTP Simple Mail Transfer Protocol The standard e mail protocol on the Internet SNMP Simple Network Management Protocol A widely used network monitoring and control protocol Software Instructions for the computer A series of instructions that performs a particular task is called a program SOHO Small Office Home Office Mark
58. he backbone As the user moves on the end node s RF transmitter regularly checks the system to determine whether it is in touch with the original access point or whether it should seek a new one When a node no longer receives acknowledgment from its original access point it undertakes a new search Upon finding a new access point it then re registers and the communication process continues 59 What is the ISM band The FCC and their counterparts outside of the U S have set aside bandwidth for unlicensed use in the ISM Industrial Scientific and Medical band Spectrum in the vicinity of 2 4 GHz in particular is being made available worldwide This presents a truly revolutionary opportunity to place convenient high speed wireless capabilities in the hands of users around the globe What is Spread Spectrum Spread Spectrum technology is a wideband radio frequency technique developed by the military for use in reliable secure mission critical communications systems It is designed to trade off bandwidth efficiency for reliability integrity and security In other words more bandwidth is consumed than in the case of narrowband transmission but the trade off produces a signal that is in effect louder and thus easier to detect provided that the receiver knows the parameters of the spread spectrum signal being broadcast If a receiver is not tuned to the right frequency a spread spectrum signal looks like background noise There are two m
59. he next page of information When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes LINKSYS ave m Administration C Enable Disable amassa 755 Emaii Alerts C Enabled Disabled everts 20 100 View Logs p seine nans Figure 5 34 Reporting System Log ALL v Clear pageRefresh Clear pageRefresh Previous Page Next Page Figure 5 35 System Log 39 The Diagnostics Tab LINKSYS ne Ping Test Administration Ping Test Parameters Ping Test Parameters Prg Target P E E E fe Ping Target IP Enter the IP address that you want to ping This can be either a local LAN IP or an Internet Mp ED sande WAN IP address a um PingSize Enter the size of the packet Mea Natu ient Ang Number of Pings Enter the number of times that you want to ping rs Save Stings Conca Chonoee Ping Interval Enter the ping interval how often the target IP address will be pinged in milliseconds Figure 0536 Ping Test Ping Timeout Enter the ping timeout how long before the ping test times out in milliseconds Click the Start Test button to start the Ping Test Ping Result The results of the ping test will be shown here When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to
60. here may be a problem with the connection Try the ping command from a different computer to verify that your original computer is not the cause of the problem 3 l am not getting an IP address on the Internet with my Internet connection Refer to Problem 2 want to test my Internet connection to verify that you have connectivity 1 Make sure you are using the right Internet connection settings Contact your ISP to see if your Internet connection type is RFC 1483 Bridged RFC 1483 Routed RFC 2516 PPPoE or RFC 2364 PPPoA Please refer to the Setup section of Chapter 5 Configuring the Home Wireless G Gateway for details on Internet connection settings 2 Make sure you have the right cable Check to see if the Gateway column has a solidly lit ADSL LED 3 Make sure the cable connecting from your Gateway s ADSL port is connected to the wall jack of the ADSL service line Verify that the Status page of the Gateway s web based utility shows a valid IP address from your ISP 4 Turn off the computer and Gateway Wait 30 seconds and then turn on the Gateway and computer Check the Status tab of the Gateway s web based utility to see if you get an IP address 4 lam not able to access the Setup page of the Gateway s web based utility Refer to Problem 2 want to test my Internet connection to verify that your computer is properly connected to the Gateway 1 Refer to Appendix C Finding the MAC Address and IP address for Your Eth
61. ines the message format and the message transfer agent MTA which stores and forwards the mail POP3 Post Office Protocol 3 A standard mail server commonly used on the Internet It provides a message store that holds incoming e mail until users log on and download it POP3 is a simple system with little selectivity All pending messages and attachments are downloaded at the same time POP3 uses the SMTP messaging protocol Specific Port You can add three additional applications by entering their respective port numbers in the Specific Port fields LINKSYS pow Applications amp Gaming Application based QoS C imba Dmabled High priority Medium priority Low priority c a 95 959 92029529 a 9 95 494225220 arn 927 225 Save Settings Cancel Changes Figure 5 31 QoS 36 The Administration Tab The Management Tab The Management screen allows you to change the Gateway s access settings as well as configure the SNMP Simple Network Management Protocol UPnP Universal Plug and Play IGMP Internet Group Multicast Protocol Proxy and WLAN management features Gateway Access Local Gateway Access To ensure the Gateway s security you will be asked for your password when you access the Gateway s Web based Utility The default username and password is admin Gateway Userlist Select the number of the user from the drop down menu Gateway Username Enter the default username admin It is recommen
62. ing prompted for a password when saving settings then perform the following steps 1 Access the Gateway s web based utility by going to http 192 168 1 1 or the IP address of the Gateway Enter the default username and password admin and click the Administrations gt Management tab 2 Enter a different password in the Gateway Password field and enter the same password in the second field to confirm the password 3 Click the Save Settings button 10 1 am a PPPoE user and I need to remove the proxy settings or the dial up pop up window If you have proxy settings you need to disable these on your computer Because the Gateway is the gateway for the Internet connection the computer does not need any proxy settings to gain access Please follow these directions to verify that you do not have any proxy settings and that the browser you use is set to connect directly to the LAN For Microsoft Internet Explorer 5 0 or higher Click Start Settings and Control Panel Double click Internet Options Click the Connections tab Click the LAN settings button and remove anything that is checked Click the OK button to go back to the previous screen Click the option Never dial a connection This will remove any dial up pop ups for PPPoE users CI ESSO SU ES 52 For Netscape 4 7 or higher 1 Start Netscape Navigator and click Edit Preferences Advanced and Proxies 2 Make sure you have Direct connection to the Internet selected
63. inksys Hackers know these defaults and can check these against your network Change your SSID to something unique and not something related to your company or the networking products you use Change your SSID regularly so that any hackers who have gained access to your wireless network will have to start from the beginning in trying to break in MAC Addresses Enable MAC Address filtering MAC Address filtering will allow you to provide access to only those wireless nodes with certain MAC Addresses This makes it harder for a hacker to access your network with a random MAC Address WEP Encryption Wired Equivalent Privacy WEP is often looked upon as a cure all for wireless security concerns This is overstating WEP s ability Again this can only provide enough security to make a hacker s job more difficult There are several ways that WEP can be maximized 1 Use the highest level of encryption possible 2 Use Shared Key authentication 3 Change your WEP key regularly WPA Wi Fi Protected Access WPA is the newest and best available standard in Wi Fi security Two modes are available Pre Shared Key and RADIUS Pre Shared Key gives you a choice of two encryption methods TKIP Temporal Key Integrity Protocol which utilizes a stronger encryption method and incorporates Message Integrity Code MIC to provide protection against hackers and AES Advanced Encryption System which utilizes a symmetric 128 Bit block data encryption RAD
64. international 78 Wireless Adapters Wireless adapters have the power output set to 100 by default Maximum power output on each adapter does not exceed 20 dBm 100 mW it is generally 18 dBm 64 mW or below If you need to alter your wireless adapter s power output follow the appropriate instructions for your computer s Windows operating system Windows XP 1 Double click the Wireless icon in your desktop s system tray Open the Wireless Network Connection window Click the Properties button Select the General tab and click the Configure button In the Properties window click the Advanced tab Select Power Output From the pull down menu on the right select the wireless adapter s power output percentage Du Te Cor Windows 2000 1 Open the Control Panel 2 Double click Network and Dial Up Connections 3 Select your current wireless connection and select Properties 4 From the Properties screen click the Configure button 5 Click the Advanced tab and select Power Output 6 From the pull down menu on the right select the wireless adapter s power setting If your computer is running Windows Millennium or 98 then refer to Windows Help for instructions on how to access the advanced settings of a network adapter Wireless Access Points Routers or Other Wireless Products If you have a wireless access point router or other wireless product use its Web based Utility to configure its power output setting r
65. ireless SSID Broadcast When wireless computers or clients survey the local area for wireless networks to associate with they will detect the SSID broadcast by the Gateway To broadcast the Gateway s SSID keep the default setting Enable If you do not want to broadcast the Gateway s SSID then select Disable When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes 23 The Wireless Security Tab LINKSYS Wr The Wireless Security settings configure the security of your wireless network There are two wireless security Wireless options supported by the Gateway Pre Shared Key and WEP Pre Shared Key is a security standard stronger than WEP Wired Equivalent Privacy encryption These are briefly discussed here For detailed instructions on I configuring wireless security for the Gateway turn to Appendix B Wireless Security If you want to disable eee m wireless security select Disable from the drop down menu for Security Mode pM seconds Pre Shared Key Enter a Pre Shared Key of 8 32 characters Then enter a Group Key Renewal period which instructs the Gateway how often it should change the encryption keys EX sf Figure 5 15 Pre Shared Key 24 WEP WEP is a basic encryption method which is not as secure as Pre Shared Key To use WEP select a Default oF INKBYS 7 howe Key this indicates which Key to use and a leve
66. is set to Never dial a connection For Netscape Navigator click Edit Preferences Advanced and Proxy Make sure that Netscape Navigator is set to Direct connection to the Internet What is DMZ Hosting Demilitarized Zone DMZ allows one IP address computer to be exposed to the Internet Some applications require multiple TCP IP ports to be open It is recommended that you set your computer with a static IP if you want to use DMZ Hosting To get the LAN IP address see Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter If DMZ Hosting is used does the exposed user share the public IP with the Gateway No Does the Gateway pass PPTP packets or actively route PPTP sessions The Gateway allows PPTP packets to pass through 57 Is the Gateway cross platform compatible Any platform that supports Ethernet and TCP IP is compatible with the Gateway How many ports can be simultaneously forwarded Theoretically the Gateway can establish 520 sessions at the same time but you can only forward 10 ranges of ports What are the advanced features of the Gateway The Gateway s advanced features include Advanced Wireless settings Filters Port Forwarding Routing and DDNS What is the maximum number of VPN sessions allowed by the Gateway The maximum number depends on many factors At least one IPSec session will work through the Gateway however simultaneous IPSec sessions may be possible depending on the specific
67. l Upgrade button Luin KSYS ho te Administration at C Wo p pem Figure 5 38 Factory Defaults LINKSYS hom Administration Firmware Upgrade File Path Browse Warning Upgrading firmware from lan side may take a few minutes please dont tum Upgrade meret HOT be interrupted 1 jpgrade etas Figure 5 39 Firmware Upgrade 41 The Reboot Tab LINKSYS home This screen allows you to do a soft or hard reboot of the Gateway In most cases you should use the hard reboot The soft reboot is similar to restarting your computer without physically powering down the computer Administration Preto Reboot tm UT Reboot Mode To reboot your Gateway select Hard or Soft Choose Hard to power cycle the Gateway or Soft to Sz Bere Sets eet Ces restart it without a power cycle Figure 5 40 Reboot To begin the reboot process click the Save Settings button When a screen appears asking you if you really want to reboot the Gateway click OK Click the Cancel Changes button if you want to cancel the reboot 42 The Status Tab LINKSYS howe The Gateway Tab Status i i i i its Internet connection This screen displays information about the Gateway and its Internet connectio Gateway Information This section displays the Gateway s Firmware Version MAC Address and Current Time Internet Connection After you select the Internet connection number from the drop down menu you se
68. l of WEP encryption 64 bits 10 hex digits or 128 bits 26 hex digits Then either generate a WEP key using a Passphrase or enter the WEP key manually Wireless e WEP Encryption An acronym for Wired Equivalent Privacy WEP is an encryption method used to protect your wireless data communications WEP uses 64 bit or 128 bit keys to provide access control to your network and encryption security for every data transmission To decode data transmissions all devices in a network must use an identical WEP key Higher encryption levels offer higher levels of security but due to the complexity of the encryption they may decrease network performance To enable WEP select 64 bits 10 hex digits or 128 bits 26 hex digits Default Transmit Key Select which WEP key 1 4 will be used when the Gateway sends data Make sure that the receiving device wireless computer or client is using the same key eac Passphrase Instead of manually entering WEP keys you can enter a passphrase This passphrase is used to generate one or more WEP keys It is case sensitive and should not be longer than 32 alphanumeric characters This Passphrase function is compatible with Linksys wireless products only and cannot be used with Windows XP Zero Configuration If you want to communicate with non Linksys wireless products or Windows XP Zero Configuration make a note of the WEP key generated in the Key 1 field and enter it manually in the wireless computer or client Af
69. laitetta koskevien m r ysten mukainen Svenska Denna utrustning r i verensst mmelse med de v sentliga kraven och Swedish andra relevanta best mmelser i Direktiv 1999 5 EC NOTE If you need any technical documentation see the How to Access Technical Documents on www linksys com international section for more information The following standards were applied during the assessment of the product against the requirements of the Directive 1999 5 EC Radio EN 300 328 EMC EN 301 489 1 EN 301 489 17 Safety EN 60950 Appendix F Regulatory Information CE Marking For the Linksys Wireless B and Wireless G products the following CE mark notified body number where applicable and class 2 identifier are added to the equipment C 05600 C 06780 CEO Check the CE label on the product to find out which notified body was involved during the assessment National Restrictions This product may be used in all EU countries and other countries following the EU directive 1999 5 EC without any limitation except for the countries mentioned below Ce produit peut tre utilis dans tous les pays de l UE et dans tous les pays ayant transpos s la directive 1999 5 CE sans aucune limitation except pour les pays mentionn s ci dessous Questo prodotto utilizzabile in tutte i paesi EU ed in tutti gli altri paesi che seguono le direttive EU 1999 5 EC senza nessuna limitazione eccetto per i paesii menzionati
70. lick the Close button to return to the Wireless screen Click the Refresh button if you want to refresh the displayed information TUR Wireless Clients Connected mE Figure 5 45 Wireless Networked Computers Refresh Computer Name IP Address MAC Address Close Figure 5 46 Networked Computers 45 The DSL Connection Tab This screen shows information about the DSL connection and the PVC connection DSL Status This section shows the following DSL Status DSL Modulation Mode DSL Path Mode Downstream Rate Upstream Rate Downstream Margin Upstream Margin Downstream Line Attenuation Upstream Line Attenuation Downstream Transmit Power and Upstream Transmit Power PVC Connection After you select the PVC connection number from the drop down menu you see the following information Encapsulation Multiplexing QoS Pcr Rate Scr Rate Autodetect VPI VCI Enable status and PVC Status Click the Refresh button if you want to refresh the displayed information Figure 5 47 DSL Connection 46 Appendix A Troubleshooting This appendix consists of two parts Common Problems and Solutions and Frequently Asked Questions Provided are possible solutions to problems that may occur during the installation and operation of the Gateway Read the descriptions below to help you solve your problems If you can t find an answer here check the Linksys international website at www linksys com international Co
71. match the mapped port above and ServerName to the IP assigned to the Gateway from your ISP Can multiple gamers on the LAN get on one game server and play simultaneously with just one public IP address It depends on which network game or what kind of game server you are using For example Unreal Tournament Supports multi login with one public IP How do get Half Life Team Fortress to work with the Gateway The default client port for Half Life is 27005 The computers on your LAN need to have clientport 2700x added to the HL shortcut command line the x would be 6 7 8 and on up This lets multiple computers connect to the same server One problem Version 1 0 1 6 won t let multiple computers with the same CD key connect at the same time even if on the same LAN not a problem with 1 0 1 3 As far as hosting games the HL server does not need to be in the DMZ J ust forward port 27015 to the local IP address of the server computer 56 The web page hangs downloads are corrupt or nothing but junk characters are being displayed on the screen What do need to do Force your Ethernet adapter to 10M bps or half duplex mode and turn off the Auto negotiate feature of your Ethernet adapter as a temporary measure Please look at the Network Control Panel in your Ethernet adapter s Advanced Properties tab Make sure that your proxy setting is disabled in the browser Check our website at www linksys com international for more informatio
72. mmon Problems and Solutions 1 need to set a static IP address on a computer You can assign a static IP address to a computer by performing the following steps For Windows 98 and Me 1 Click Start Settings and Control Panel Double click Network 2 In The following network components are installed box select the TCP IP gt associated with your Ethernet adapter If you only have one Ethernet adapter installed you will only see one TCP IP line with no association to an Ethernet adapter Highlight it and click the Properties button 3 Inthe TCP IP properties window select the IP address tab and select Specify an IP address Enter a unique IP address that is not used by any other computer on the network connected to the Gateway Make sure that each IP address is unique for each computer or network device 4 Click the Gateway tab and in the New Gateway prompt enter 192 168 1 1 which is the default IP address of the Gateway Click the Add button to accept the entry 5 Click the DNS tab and make sure the DNS Enabled option is selected Enter the Host and Domain names e g ohn for Host and home for Domain Enter the DNS entry provided by your ISP If your ISP has not provided the DNS IP address contact your ISP to get that information or go to its website for the information 6 Click the OK button in the TCP IP properties window and click Close or the OK button for the Network window 7 Restart the computer when asked For
73. n If all else fails in the installation what can I do Reset the Gateway by holding down the reset button until the Power LED fully turns on and off Reset your DSL modem by powering the unit off and then on Obtain and flash the latest firmware release that is readily available on the Linksys international website ww w linksys com international How will be notified of new Gateway firmware upgrades All Linksys firmware upgrades are posted on the Linksys international website at www linksys com international where they can be downloaded for free To upgrade the Gateway s firmware use the Administration tab of the Gateway s web based utility If the Gateway s Internet connection is working well there is no need to download a newer firmware version unless that version contains new features that you would like to use Will the Gateway function in a Macintosh environment Yes but the Gateway s setup pages are accessible only through Internet Explorer 4 0 or Netscape Navigator 4 0 or higher for Macintosh am not able to get the web configuration screen for the Gateway What can do You may have to remove the proxy settings on your Internet browser e g Netscape Navigator or Internet Explorer Check with your browser documentation and make sure that your browser is set to connect directly and that any dial up is disabled For Internet Explorer click Tools Internet Options and then the Connection tab Make sure that Internet Explorer
74. n the computer refer to Problem 1 need to set a static IP address Use the following IP address settings for the computer you are using IP Address 192 168 1 50 Subnet Mask 255 255 255 0 Gateway 192 168 1 1 Perform the upgrade using the TFTP program or the Gateway s web based utility through its Administration tab 14 My DSL service s PPPoE is always disconnecting PPPoE is not actually a dedicated or always on connection The DSL ISP can disconnect the service after a period of inactivity just like a normal phone dial up connection to the Internet Thereis a setup option to keep alive the connection This may not always work so you may need to re establish connection periodically 53 OTe S 6 To connect to the Gateway go to the web browser and enter http 192 168 1 1 or the IP address of the Gateway Enter the username and password if asked The default username and password is admin On the Setup screen select the option Keep Alive and set the Redial Period option at 20 seconds Click the Save Settings button Click the Status tab and click the Connect button You may see the login status display as Connecting Press the F5 key to refresh the screen until you see the login status display as Connected Click the Save Settings button to continue e Ifthe connection is lost again follow steps 1 6 to re establish connection 15 1 can t access my e mail web or VPN or am getting corrupted
75. net Mask Gateway Interface 192 168 1 0 255 255 255 0 0 0 0 0 LAN amp Wireless Figure 5 13 Routing Table 22 The Wireless Tab LINKSYS howe The Basic Wireless Settings Tab Wireless This screen allows you to choose your wireless network mode and wireless security V reless Network Mode Mxed Wireless Network Mecum ez E V retess SSD Brosdcest C tnabie C Dissabte e Wireless Network Mode If you have 802 11g and 802 11b devices in your network then keep the default setting Mixed If you have only 802 119 devices select 802 11g If you have only 802 11b devices select i mem ml 802 11b If you want to disable wireless networking select Disabled Figure 5 14 Basic Wireless Settings Wireless Network Name SSID Enter the name for your wireless network into the field The SSID is the network name shared among all devices in a wireless network It must be identical for all devices in the wireless network It is case sensitive and must not exceed 32 alphanumeric characters which may be any keyboard character Linksys recommends that you change the default SSID linksys to a unique name of your choice Wireless Channel Select the appropriate channel from the list provided to correspond with your network settings All devices in your wireless network must use the same channel in order to function correctly Wireless computers or clients will automatically detect the wireless channel of the Gateway W
76. nge Forwarding To set up public services or other specialized Internet applications that require forwarding on a range of ports use this screen Port Triggering To set up triggered ranges and forwarded ranges for Internet applications click this tab DMZ To allow one local computer to be exposed to the Internet for use of special purpose services use this screen QoS Use Quality of Service QoS to assign different priority levels to different types of data transmissions Administration Management On this screen alter Gateway access Simple Network Management Protocol SNMP Universal Plug and Play UPnP IGMP Proxy IGMP stands for Internet Group Multicast Protocol and wireless management settings Reporting If you want to view or save activity logs click this tab Diagnostics Use this screen to run a Ping test Backup amp Restore On this screen you can back up or restore the Gateway s configuration Factory Defaults If you want to restore the Gateway s factory default settings use this screen Firmware Upgrade Click this tab if you want to upgrade the Gateway s firmware Reboot If you need to do a hard or soft reboot of the Gateway use this screen 13 Status Gateway This screen provides status information about the Gateway Local Network This provides status information about the local network Wireless This screen provides status information about the wireless network DSL Connection This sc
77. nly are useful in homes and offices but also can be fun PCs on a wired network create a LAN or Local Area Network They are connected with Ethernet cables which is why the network is called wired PCs equipped with wireless cards or adapters can communicate without cumbersome cables By sharing the same wireless settings within their transmission radius they form a wireless network This is sometimes called a WLAN or Wireless Local Area Network Since the Gateway has wireless capabilities it can bridge your wired and wireless networks letting them communicate with each other With your networks all connected wired wireless and the Internet you can now share files and Internet access and even play games All the while the Home Wireless G Gateway protects your networks from unauthorized and unwelcome users Linksys recommends using the Setup CD ROM for first time installation of the Gateway If you do not wish to run the Setup Wizard on the Setup CD ROM then use the instructions in this Guide to help you connect the Gateway set it up and configure it to bridge your different networks These instructions should be all you need to get the most out of the Home Wireless G Gateway wpa wi fi protected access a wireless security protocol using TKIP Temporal Key Integrity Protocol encryption which can be used in conjunction with a RADIUS server spi stateful packet inspection firewall a technology that inspects incoming pa
78. nnected to the private LAN is never transmitted on the Internet Furthermore NAT allows the Gateway to be used with low cost Internet accounts when only one TCP IP address is provided by the ISP The user may have many private addresses behind this single address provided by the ISP Does the Gateway support any operating system other than Windows 98SE Windows Millennium Windows 2000 or Windows XP Yes but Linksys does not at this time provide technical support for setup configuration or troubleshooting of any non Windows operating systems Does the Gateway support ICQ send file Yes with the following fix click ICQ menu gt preference gt connections tab gt and check am behind a firewall or proxy Then set the firewall time out to 80 seconds in the firewall setting The Internet user can then send a file to a user behind the Gateway set up an Unreal Tournament Server but others on the LAN cannot join What do need to do If you have a dedicated Unreal Tournament server running you need to create a static IP for each of the LAN computers and forward ports 7777 7778 7779 7780 7781 and 27900 to the IP address of the server You can also use a port forwarding range of 7777 27900 If you want to use the UT Server Admin forward another port Port 8080 usually works well but is used for remote admin You may have to disable this Then in the UWeb WebServer section of the server ini file set the ListenPort to 8080 to
79. o your changes 19 The DDNS Tab The Gateway offers a Dynamic Domain Name System DDNS feature DDNS lets you assign a fixed host and domain name to a dynamic Internet IP address It is useful when you are hosting your own website FTP server or other server behind the Gateway Before you can use this feature you need to sign up for DDNS service at DynDNS org or TZO com DDNS DDNS Service If your DDNS service is provided by DynDNS org then select DynDNS org from the drop down menu If your DDNS service is provided by TZO com then select TZO com from the drop down menu To disable DDNS Service select Disabled DynDNS org User Name Password and Host Name Enter the User Name Password and Host Name of the account you set up with DynDNS org Internet IP Address The Gateway s current Internet IP Address is displayed here Because it is dynamic it will change Status The status of the DDNS service connection is displayed here TZO com E mail Address Password and Domain Name Enter the E mail Address Password and Domain Name of the account you set up with TZO Internet IP Address The Gateway s current Internet IP Address is displayed here Because it is dynamic this will change Status The status of the DDNS service connection is displayed here When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes
80. of 157 DHCP Users 151 Client Lease Time 0 minutes 0 means one day Static DNS 1 pp fo fo fo Static DNS 2 D fo fo fo Static DNS 3 fo fo was f fo fo Time Zone GMT 08 00 Pacific Time USA amp Canada Time Interval 3600 seconds IV Automatically adjust clock for daylight saving changes Save Settings Cancel Changes Figure 5 9 Optional Settings 18 Client Lease Time The Client Lease Time is the amount of time a computer will be allowed connection to the Gateway with its current dynamic IP address Enter the amount of time in minutes that the computer will be leased this dynamic IP address Static DNS 1 3 The Domain Name System DNS is how the Internet translates domain or website names into Internet addresses or URLs Your ISP will provide you with at least one DNS Server IP Address You can enter up to three DNS Server IP Addresses here The Gateway will use these for quicker access to functioning DNS servers WINS The Windows Internet Naming Service WINS converts NetBIOS names to IP addresses If you use a WINS server enter that server s IP address here Otherwise leave this field blank e Time Setting Select the appropriate time zone for the Gateway s location If desired check the Automatically adjust clock for daylight saving changes checkbox When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to und
81. olicy select that policy s number and click the Delete button To view all the policies click the Summary button Policies can be deleted from the Summary screen by selecting the policy or policies and clicking the Delete button To return to the Internet Access screen click the Close button Status Policies are disabled by default To enable a policy select the policy number from the drop down menu and click the radio button beside Enable To create an Internet Access policy 1 Select a number from the Internet Access Policy drop down menu 2 To enable this policy click the radio button beside Enable 3 Enter a Policy Name in the field provided LINKSYS e ho mM Access Restrictions Website Blocking by URL Address Winbaste tilocking by Keyword Mocked Services None None Add Edit Service z Sev _ cect Figure 5 23 Internet Access Internet Policy Summary No Policy Name Time of Day Delete v as MF ME ME UE GE GS ee Figure 5 24 Internet Policy Summary 30 Home Wireless G Gateway 4 Click the Edit List of PCs button to select which PCs will be affected by the policy The List of PCs screen will appear You can select a PC by MAC Address or IP Address You can also enter a range of IP Addresses if you want this policy to affect a group of PCs After making your changes click the S
82. omatically Use the following IP Address memePadxess o o o Siete o o o fo Gateway s fe fo fo Pmeyws o o o o Seconderyons o o fo o RFC 1483 Bridged Static IP RFC 1483 Routed If you are required to use RFC 1483 Routed then select RFC 1483 Routed e Internet IP Address This is the Gateway s IP address when seen from the WAN or the Internet Your ISP will provide you with the IP Address you need to specify here e Subnet Mask This is the Gateway s Subnet Mask Your ISP will provide you with the Subnet Mask e Gateway Your ISP will provide you with the default Gateway Address which is the ISP server s IP address e Primary DNS Required and Secondary DNS Optional Your ISP will provide you with at least one DNS Domain Name System Server IP Address Encapsutation RFC 1483 Routed z VC Settings Mutiplexing G uc C vc we UBR z Pcr Rete D e Ser Ret Tos Autodetect C Enable Disable VrusOrcut o VPI Range 0 255 35 va Range 32 6535 IP Settings rtemet P Address 0 0 0 o sarees 0 o o o Gateway f e fo fo Primeryors o fo o o Secondsryons o o o 0 Figure 5 5 RFC 1483 Routed 16 RFC 2516 PPPoE Some DSL based ISPs use PPPoE Point to Point Protocol over Ethernet to establish Internet connections If you are connected to the Internet through a DSL line check with your ISP to see if they use PPPoE If they do you will have to enable PPPoE
83. on this screen 3 Close all the windows to finish 11 To start over need to set the Gateway to factory default Hold the Reset button for 10 seconds and then release it This will return the Internet settings password forwarding and other settings on the Gateway to the factory default settings In other words the Gateway will revert to its original factory configuration 12 1 need to upgrade the firmware In order to upgrade the firmware with the latest features you need to go to the Linksys international website and download the latest firmware at www linksys com international Follow these steps 1 Go to the Linksys international website at http www linksys com international and select your region or country 2 Click the Products tab and select the Gateway 3 Onthe Gateway s webpage click Firmware and then download the latest firmware for the Gateway 4 To upgrade the firmware follow the steps in the Administration section found in Chapter 5 Configuring the Home Wireless G Gateway 13 The firmware upgrade failed and or the Power LED is flashing The upgrade could have failed for a number of reasons Follow these steps to upgrade the firmware and or make the Power LED stop flashing e Ifthe firmware upgrade failed use the TFTP program it was downloaded along with the firmware Open the pdf that was downloaded along with the firmware and TFTP program and follow the pdf s instructions Seta static IP address o
84. or 128 are being used on all nodes of your wireless network How many channels frequencies are available with the Gateway There are eleven available channels ranging from 1 to 11 in North America There may be additional channels available in other regions subject to the regulations of your region and or country If your questions are not addressed here refer to the Linksys international website www linksys com international 61 Appendix B Wireless Security Linksys wants to make wireless networking as safe and easy for you as possible The current generation of Linksys products provide several network security features but they require specific action on your part for implementation So keep the following in mind whenever you are setting up or using your wireless network Security Precautions The following is a complete list of security precautions to take at least steps 1 through 5 should be followed 1 Change the default SSID 2 Disable SSID Broadcast 3 Change the default password for the Administrator account 4 Enable MAC Address Filtering 5 Change the SSID periodically 6 Use the highest encryption algorithm possible Use WPA if it is available Please note that this may reduce your network performance 7 Change the WEP encryption keys periodically For information on implementing these security features refer to Chapter 5 Configuring the Home Wireless G Gateway Security Threats Facing Wireless
85. orrect IP Address Subnet Mask Default Gateway and DNS Restart the computer that is having a problem e Ifthe computers are configured correctly but still not working check the Gateway Ensure that it is connected and powered on Connect to it and check its settings If you cannot connect to it check the LAN and power connections 54 e Ifthe Gateway is configured correctly check your Internet connection DSL cable modem etc to see if it is working correctly You can remove the Gateway to verify a direct connection e Manually configure the TCP IP settings with a DNS address provided by your ISP Make sure that your browser is set to connect directly and that any dial up is disabled For Internet Explorer click Tools Internet Options and then the Connection tab Make sure that Internet Explorer is set to Never dial a connection For Netscape Navigator click Edit Preferences Advanced and Proxy Make sure that Netscape Navigator is set to Direct connection to the Internet 18 1 m trying to access the Gateway s Web based Utility but do not see the login screen Instead I see a screen saying 404 Forbidden If you are using Windows Explorer perform the following steps until you see the Web based Utility s login screen Netscape Navigator will require similar steps l Click File Make sure Work Offline is NOT checked 2 Press CTRL F5 This is a hard refresh which will force Windows Explorer to load new webpages
86. other Database A collection of data that is organized so that its contents can easily be accessed managed and updated DDNS Dynamic Domain Name System Allows the hosting of a website FTP server or e mail server with a fixed domain name e g www xyz com and a dynamic IP address Default Gateway A device that forwards Internet traffic from your local area network DHCP Dynamic Host Configuration Protocol A networking protocol that allows administrators to assign temporary IP addresses to network computers by leasing an IP address to a user for a limited amount of time instead of assigning permanent IP addresses DMZ Demilitarized Zone Removes the Router s firewall protection from one PC allowing it to be seen from the Internet DNS Domain Name Server The IP address of your ISP s server which translates the names of websites into IP addresses Domain A specific name for a network of computers Download To receive a file transmitted over a network DSL Digital Subscriber Line An always on broadband connection over traditional phone lines DSSS Direct Sequence Spread Spectrum Frequency transmission with a redundant bit pattern resulting in a lower probability of information being lost in transit DTIM Delivery Traffic Indication Message A message included in data packets that can increase wireless efficiency Dynamic IP Address A temporary IP address assigned by a DHCP server 69 EA
87. other peer to peer without the use of an access point What is infrastructure mode When a wireless network is set to infrastructure mode the wireless network is configured to communicate with a network through a wireless access point What is roaming Roaming is the ability of a portable computer user to communicate continuously while moving freely throughout an area greater than that covered by a single access point Before using the roaming function the computer must make sure that it is the same channel number with the access point of dedicated coverage area To achieve true seamless connectivity the wireless LAN must incorporate a number of different functions Each node and access point for example must always acknowledge receipt of each message Each node must maintain contact with the wireless network even when not actually transmitting data Achieving these functions simultaneously requires a dynamic RF networking technology that links access points and nodes In such a System the user s end node undertakes a search for the best possible access to the system First it evaluates such factors as signal strength and quality as well as the message load currently being carried by each access point and the distance of each access point to the wired backbone Based on that information the node next selects the right access point and registers its address Communications between end node and host computer can then be transmitted up and down t
88. oute entries If you need to delete a route then select the entry and click the Delete This Entry button Destination IP Address The Destination IP Address is the address of the remote network or host to which you want to assign a static route Enter the IP address of the host for which you wish to create a static route If you are building a route to an entire network be sure that the network portion of the IP address is set to 0 e Subnet Mask Enter the Subnet Mask also known as the Network Mask which determines which portion of an IP address is the network portion and which portion is the host portion e Gateway Enter the IP address of the gateway device that allows for contact between the Gateway and the remote network or host Hop Count Hop Count is the number of hops to each node until the destination is reached 16 hops maximum Enter the Hop Count in the field provided Show Routing Table Click the Show Routing Table button to open a screen displaying how data is routed through your local network For each route the Destination LAN IP address Subnet Mask Gateway and Interface are displayed Click the Refresh button to update the information Click the Close button to return to the previous screen When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes Routing Table Entry List Refresh Destination LAN IP Sub
89. ows the Ethernet adapter s IP address as 192 168 1 100 Your computer may show something different Figure C 3 MAC Address Physical Address 66 Appendix D Upgrading Firmware To upgrade the Gateway s firmware 1 2 Download the Gateway s firmware upgrade file from www linksys com Extract the file on your computer Open the Gateway s Web based Utility and click the Administration tab Click the Firmware Upgrade tab Click the Browse button to find the extracted file and then double click it Click the Upgrade button and follow the on screen instructions LINKSYS A A ve Hr Administration Upgrade From LAN Firmware Upgrade File Path Browse Warning Upgrading firmware from lan side may take a few minute Upgrade mast HOT be interrupted Upgrade Cancel Upgrades Figure D 1 Firmware Upgrade 67 Appendix E Glossary 802 11b A wireless networking standard that specifies a maximum data transfer rate of 11Mbps and an operating frequency of 2 4GHz 802 11g A wireless networking standard that specifies a maximum data transfer rate of 54Mbps an operating frequency of 2 4GHz and backward compatibility with 802 11b devices Access Point A device that allows wireless equipped computers and other devices to communicate with a wired network Also used to expand the range of a wireless network Adapter A device that adds network functionality to your PC Ad hoc A group of wireless
90. pplication that are none time sensitive such as e mail or VBR Variable Bite Rate for Bursty traffic and bandwidth sharing with other applications Opeonal Senge required by some ISPs Metwrork Address Server Settings CP Enter Network passw 2x qo Please type your user name and password Site 1921681 1 Realm User Name Password Save this password in your password kat OK Cancel Figure 5 1 Login Screen teas I2 i88 I Soret Mack 256 255 255 0 Locw OM Server Enebi C Disable C DHCP Relay F 1 somatc y span Cock lr on t seg charges Save Songi Cancel Changes Figure 5 2 Basic Setup 14 Pcr Rate For the Peak Cell Rate divide the DSL line rate by 424 to get the maximum rate the sender can send cells Enter the rate in the field if required by your service provider Scr Rate The Sustain Cell Rate sets the average cell rate that can be transmitted The SCR value is normally less than the PCR value Enter the rate in the field if required by your service provider e Autodetect Select Enable to have the settings automatically entered or select Disable to enter the values manually Virtual Circuit These fields consist of two items VPI Virtual Path Identifier and VCI Virtual Channel Internet Connection Type Identifier Your ISP will provide the correct settings for these fields vesinas JP Settings Follow the instructions in the section for your type of
91. r IP addresses and MAC addresses This data is stored in temporary memory and changes periodically An ARP request is a request sent by the Gateway asking clients with IP addresses for their MAC addresses so the Gateway can map IP addresses to MAC addresses RARP is the reverse of ARP Click the Refresh button if you want to refresh the displayed information Click the Close button to return to the Local Network screen Click the Refresh button if you want to refresh the displayed information MAC Adress 09 9E 0A AA FF 149246144 255 255 255 0 Leable EECA 112 162 1254 DHCP Clients Table ARPIRARP Teble Figure 5 42 Local Network DHCP Active IP Table DHCP Serer IP Address 192 168 1 1 Retesh MAC Address Expires Delete 00 DO B B6 45BA 234449 r Close Client Host Name IP Address gany 192165164 Figure 5 43 DHCP Active IP Table ARP RARP Table Close Refresh IP Address MAC Address 192168 1 64 00 0 B7 B6 46 BA Figure 5 44 ARP RARP Table 44 The Wireless Tab INKSYS hone The Wireless network information that is displayed is the Wireless Firmware Version MAC Address Mode SSID DHCP Server Channel and Encryption Function Status Click the Wireless Clients Connected button to view a list of the wireless clients connected to the Gateway along with their computer names IP addresses and MAC addresses Click the Refresh button if you want to refresh the displayed information C
92. r on the local network when it logs into the Gateway s Web based Utility When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes 38 The Reporting Tab The Reporting screen provides you with a log of all incoming and outgoing URLs or IP addresses for your Internet connection It also provides logs for VPN and firewall events Reporting Log To enable log reporting click Enabled Logviewer IP Address Enter the IP Address of the computer that will receive logs You will need Logviewer software to view these logs This free software is available for download from www linksys com Email Alerts E Mail Alerts To enable E Mail Alerts click Enabled Denial of Service Thresholds Enter the number of Denial of Service attacks that will trigger an e mail alert SMTP Mail Server Enter the IP address of the SMTP server E Mail Address for Alert Logs Enter the e mail address that will receive alert logs Return E Mail address Enter the return address for the e mail alerts To view the logs click the View Logs button A new screen will appear From the drop down menu you can select which log you want to view Click the Clear button to clear the log information Click the pageRefresh button to refresh the information Click the Previous Page button to go to the previous page of information Click the Next Page button to move to t
93. r the chosen application When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes 32 The Port Range Forwarding Tab LINKSYS eu The Port Range Forwarding screen sets up public services on your network such as web servers ftp servers e PAISES mail servers or other specialized Internet applications Specialized Internet applications are any applications amp Gaming that use Internet access to perform functions such as videoconferencing or online gaming Some Internet applications may not require any forwarding Port Range forwarding When users send this type of request to your network via the Internet the Gateway will forward those requests to m the appropriate computer Any computer whose port is being forwarded should have its DHCP client function B xz r disabled and should have a new static IP address assigned to it because its IP address may change when using d the DHCP function o F ees wee or w p Bom s 1921681 0 r Application Enter the name of the application in the field provided nw r Du f Bohs ew r Start and End Enter the starting and ending numbers of the port range you wish to forward E Save Settings Cancel Changes Protocol Select the protocol you wish to use for each application TCP UDP or Both Figure 5 28 Port Range Forwarding P A
94. reen provides status information about the DSL connection How to Access the Web based Utility To access the web based utility launch Internet Explorer or Netscape Navigator and enter the Gateway s default IP address 192 168 1 1 in the Address field Then press Enter A login screen will appear Windows XP users will see a similar screen Enter admin the default user name in the User Name field and enter admin the default password in the Password field Then click the OK button The Setup Tab The Basic Setup Tab The first screen that appears is the Basic Setup tab This tab allows you to change the Gateway s general settings Change these settings as described here and click the Save Settings button to save your changes or click the Cancel Changes button to cancel your changes Internet Setup e Internet Connection Type The Gateway supports five Encapsulation methods RFC 1483 Bridged RFC 1483 Routed RFC 2516 PPPoE RFC 2364 PPPoA and Bridged Mode Only Select the appropriate type of encapsulation from the drop down menu Each Basic Setup screen and available features will differ depending on what type of encapsulation you select e VC Settings You will configure your Virtual Circuit VC settings in this section e Multiplexing Select LLC or VC depending on your ISP QoS Type Select from the drop down menu CBR Continuous Bit Rate to specify fixed bandwidth for voice or data traffic UBR Unspecific Bit Rate for a
95. rk window Restart the computer if asked Open a command prompt 48 For Windows 98 and Me Click Start and Run In the Open field type in command Press the Enter key or click the OK button For Windows NT 2000 and XP Click Start and Run In the Open field type cmd Press the Enter key or click the OK button In the command prompt type ping 192 168 1 1 and press the Enter key If you get a reply the computer is communicating with the Gateway If you do NOT get a reply please check the cable and make sure Obtain an IP address automatically is selected in the TCP IP settings for your Ethernet adapter In the command prompt type ping followed by your Internet or WAN IP address and press the Enter key The Internet or WAN IP Address can be found on the Status screen of the Gateway s web based utility For example if your Internet or WAN IP address is 1 2 3 4 you would enter ping 1 2 3 4 and press the Enter key If you get a reply the computer is connected to the Gateway If you do NOT get a reply try the ping command from a different computer to verify that your original computer is not the cause of the problem In the command prompt type ping www yahoo com and press the Enter key If you get a reply the computer is connected to the Internet If you cannot open a webpage try the ping command from a different computer to verify that your original computer is not the cause of the problem If you do NOT get a reply t
96. rver or application to work If you are having difficulties getting any Internet game server or application to function properly consider exposing one computer to the Internet using DeMilitarized Zone DMZ hosting This option is available when an application requires too many ports or when you are not sure which port services to use Make sure you disable all the forwarding entries if you want to successfully use DMZ hosting since forwarding has priority over DMZ hosting In other words data that enters the Gateway will be checked first by the forwarding settings If the port number that the data enters from does not have port forwarding then the Gateway will send the data to whichever computer or network device you set for DMZ hosting Follow these steps to set DMZ hosting 1 Access the Gateway s web based utility by going to http 192 168 1 1 or the IP address of the Gateway Go to the Applications and Gaming gt DMZ tab Click Enabled and enter the IP of the computer 2 Check the Port Forwarding pages and disable or remove the entries you have entered for forwarding Keep this information in case you want to use it at a later time Once completed with the configuration click the Save Settings button forgot my password or the password prompt always appears when am saving settings to the Gateway e Reset the Gateway to factory default by pressing the Reset button for 10 seconds and then releasing it If you are still gett
97. s of your VPNs How can check whether I have static or DHCP IP Addresses Consult your ISP to obtain this information How do get mIRC to work with the Gateway Under the Port Forwarding tab set port forwarding to 113 for the computer on which you are using mIRC Can the Gateway act as my DHCP server Yes The Gateway has DHCP server software built in Can I run an application from a remote computer over the wireless network This will depend on whether or not the application is designed to be used over a network Consult the application s documentation to determine if it supports operation over a network What is the IEEE 802 11g standard Itis one of the IEEE standards for wireless networks The 802 11g standard allows wireless networking hardware from different manufacturers to communicate provided that the hardware complies with the 802 11g standard The 802 11g standard states a maximum data transfer rate of 54Mbps and an operating frequency of 2 4GHz 58 What IEEE 802 11b and 802 11g features are supported The product supports the following IEEE 802 11b and IEEE 802 11g functions e CSMA CA plus Acknowledge protocol e Multi Channel Roaming e Automatic Rate Selection e RTS CTS feature e Fragmentation Power Management It also supports OFDM technology for 802 119 networking What is ad hoc mode When a wireless network is set to ad hoc mode the wireless equipped computers are configured to communicate directly with each
98. ss as 00 00 00 00 00 00 Your computer will show something different The example in Figure C 2 shows the Ethernet adapter s IP address as 192 168 1 100 Your computer may show something different a Note The MAC address is also called the Adapter Address 11 Contiouoion at r Ethemet Adapter Information Subnet Mask 255 255 255 0 Default Gateway 192 168 1 254 Release Renew Release All Renew All pedet Figure C 1 IP Configuration Screen ZIP Contiguation eles r Ethemet Adapter Information linksys LNE100TX Fast Etherne Adapter Address 000000000000 gt IP Address 192 168 1 100 SubnetMack 2552552550 Default Gateway 191811 Figure C 2 MAC Address Adapter Address 65 Windows 2000 or XP Instructions 1 Click Start and Run In the Open field enter cmd Press the Enter key or click the OK button Note The MAC address is also called the Physical Address 2 Atthe command prompt enter ipconfig all Then press the Enter key 3 Write down the Physical Address as shown on your computer screen Figure C 3 it is the MAC address for your Ethernet adapter This appears as a series of numbers and letters The MAC address Physical Address is what you will use for MAC filtering The example in Figure C 3 shows the Ethernet adapters s MAC address as 00 00 00 00 00 00 Your computer will show something different The example in Figure C 3 sh
99. ter any name you want to use for the Customized Application 3 Enter the External Port range of the service you are using For example if you have a web server you would enter the range 80 to 80 4 Check the protocol you will be using TCP and or UDP 5 Enter the IP address of the computer or network device that you want the port server to go to For example if the web server s Ethernet adapter IP address is 192 168 1 100 you would enter 100 in the 50 field provided Check Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter for details on getting an IP address 6 Check the Enable option for the port services you want to use Consider the example below Customized Application External Port TCP UDP IP Address Enable Web server 80 to 80 X 192 168 1 100 X FTP server 21 to 21 X 192 168 1 101 X SMTP outgoing 25 to 25 X 192 168 1 102 X POP3 incoming 110 to 110 X 192 168 1 102 X When you have completed the configuration click the Save Settings button need to set up online game hosting or use other Internet applications If you want to play online games or use Internet applications most will work without doing any port forwarding or DMZ hosting There may be cases when you want to host an online game or Internet application This would require you to set up the Gateway to deliver incoming packets or data to a specific computer This also applies to the Internet applications you are using The best w
100. ter you enter the Passphrase click the Generate button to create WEP keys e WEP Keys 1 4 WEP keys enable you to create an encryption scheme for wireless network transmissions If you are not using a Passphrase then manually enter a set of values Do not leave a key field blank and do not enter all zeroes they are not valid key values If you are using 64 bit WEP encryption the key must be exactly 10 hexadecimal characters in length If you are using 128 bit WEP encryption the key must be exactly 26 hexadecimal characters in length Valid hexadecimal characters are 0 9 and A F When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes For detailed instructions on configuring wireless security for the Gateway turn to Appendix B Wireless Security Sere Setter cmc ores _ Figure 5 16 WEP 25 The Wireless Access Tab Wireless Network Access Wireless Network Access Select Allow All you want all computers to have access to the wireless network To restrict access to the network select Restrict Access and then select Prevent to block access for the designated computers or Permit only to permit access for the designated computers Click the Edit MAC Address Access List button and the Mac Address Filter List screen will appear Enter the MAC addresses of the computers you want to designate To see a list of MAC address
101. ternet side cannot see your computers This is how your network remains private The Gateway protects your network by inspecting every packet coming in through the Internet port before delivery to the appropriate computer on your network The Gateway inspects Internet port services like the web server ftp server or other Internet applications and if allowed it will forward the packet to the appropriate computer on the LAN side Remember that the Gateway s ports connect to two sides The Ethernet port connects to the LAN and the ADSL port connects to the Internet The Ethernet port transmits data at 10 100Mbps IP Addresses What s an IP Address Figure 2 1 Network ip internet protocol a protocol used to send data over a network IP stands for Internet Protocol Every device on an IP based network including computers print servers and Gateways requires an IP address to identify its location or address on the network This applies to both the Internet and LAN connections There are two ways of assigning an IP address to your network devices You can assign static IP addresses or use the Gateway to assign IP addresses dynamically NOTE Since the Gateway is a device that connects two networks it needs two IP addresses one for Static IP Addresses A the LAN and one for the Internet In this User Guide you ll see references to the Internet IP address A static IP address is a fixed IP address that you assign manually
102. the computer s wireless adapter has its SSID setto linksys the Gateway s default setting and its wireless security is disabled After you have accessed the Gateway you can change the Gateway and this computer s adapter settings to match your usual network settings Go to Chapter 5 Configuring the Home Wireless G Gateway Figure 4 4 Connect the ADSL Line g A Figure 4 5 Connect the Power NOTE You should always change the SSID from its default linksys and enable wireless security Chapter 5 Configuring the Home Wireless G Gateway Overview Follow the steps in this chapter and use the Gateway s web based utility to configure the Gateway This chapter will describe each web page in the Utility and each page s key functions The utility can be accessed via your web browser through use of a computer connected to the Gateway For a basic network setup most users only have to use the following screens of the Utility Basic Setup On the Basic Setup screen enter the settings provided by your ISP Management Click the Administration tab and then the Management tab The Gateway s default username and password is admin To secure the Gateway change the Password from its default There are seven main tabs Setup Wireless Security Access Restrictions Applications amp Gaming Administration and Status Additional tabs will be available after you click one of the main tabs Setup Basic Setup Enter th
103. tion of Conformity with Regard to the EU Directive 1995 5 EC R amp TTE Directive Cesky Toto zaiizeni je v souladu se z kladnimi po adavky a ostatnimi Czech odpovidajicimi ustanovenimi Sm mice 1999 5 EC Dansk Dette udstyr er i overensstemmelse med de v sentlige krav og andre Danish relevante bestemmelser i Direktiv 1999 S EF Deutsch Dieses Ger t entspricht den grundlegenden Anforderungen und den German weiteren entsprechenden Vorgaben der Richtlinie 1999 5 EU Eesti See seade vastab direktiivi 1999 5 EC olulistele n uetele ja teistele Estonian asjakohastele s tetele English This equipment is in compliance with the essential requirements and other relevant provisions of Directive 1999 S EC Espa ol Este equipo cumple con los requisitos esenciales asi como con otras Spanish disposiciones de la Directiva 1999 5 CE EAXAqvikij Avtds 0 on 19j6z eivat oe cup p pooor ue TIS ovot etc aTUNTI OEIS Kat Greek es oyetix s vrt zeis tHE Odnyiag 1999 S EC Frangais Cet appareil est conforme aux exigences essentielles et aux autres French dispositions pertinentes de la Directive 1999 S EC slenska betta t ki er samkv mt grunnkr fum og rum vi eigandi kv um Icelandic Tilskipunar 1999 5 EC Italiano Questo apparato conforme ai requisiti essenziali ed agli altri principi Italian sanciti dalla Direttiva 1999 5 CE Latviski Si iek rta atbilst Direkt vas 1999 5 EK b tiskaj m pras
104. undo your changes The Backup amp Restore Tab LINKSYS pome The Backup amp Restore tab allows you to back up and restore the Gateway s configuration file Administration Backup Configuration p 9 Backup To back up the Gateway s configuration file click the Backup button Then follow the on screen instructions x Restore Configuration To restore the Gateway s configuration file click the Browse button Then follow the on screen instructions to e locate the file After you have selected the file click the Restore button Figure 5 37 Backup amp Restore 40 The Factory Defaults Tab Restore Factory Defaults If you wish to restore the Gateway to its factory default settings and lose all your settings click Yes To begin the restore process click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes The Firmware Upgrade Tab The Gateway allows you to upgrade firmware from the LAN Local Area Network side of the Gateway Upgrade from LAN To upgrade the Gateway s firmware from the LAN 1 1 1 2 3 Download the Gateway s firmware upgrade file from www linksys com Extract the file on your computer Click the Browse button to find the firmware upgrade file Double click the firmware file that you have downloaded and extracted Click the Upgrade button and follow the on screen instructions To cancel the firmware upgrade click the Cance
105. ur network from being pinged or detected and reinforces your network security by hiding your network ports so it is more difficult for intruders to discover your network Select Block Anonymous Internet Requests to block anonymous Internet requests or de select it to allow anonymous Internet requests If you want to see activity logs for your security measures then click the View Logs button Click the Clear button to clear the log information Click the pageRefresh button to refresh the information Click the Previous Page button to go to the previous page of information Click the Next Page button to move to the next page of information When finished making your changes on this tab click the Save Settings button to save these changes or click the Cancel Changes button to undo your changes System Log Firewall Log Clear pageRefresh Geor pageRetresh Previous Page Next Page Figure 5 22 Firewall Log 29 The Access Restrictions Tab The Internet Access Tab The Internet Access screen allows you to block or allow specific kinds of Internet usage You can set up Internet access policies for specific computers and block websites by URL address or keyword Internet Access Policy Access can be managed by a policy Use the settings on this screen to establish an access policy after the Save Settings button is clicked Selecting a policy from the drop down menu will display that policy s settings To delete a p
106. uthorization Number clearly on the outside of the package and include a copy of your original proof of purchase RETURN REQUESTS CANNOT BE PROCESSED WITHOUT PROOF OF PURCHASE You are responsible for shipping defective Products to Linksys Linksys pays for UPS Ground shipping from Linksys back to You only Customers located outside of the United States of America and Canada are responsible for all shipping and handling charges ALL IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE LIMITED TO THE DURATION OF THE WARRANTY PERIOD ALL OTHER EXPRESS OR IMPLIED CONDITIONS REPRESENTATIONS AND WARRANTIES INCLUDING ANY IMPLIED WARRANTY OF NON INFRINGEM ENT ARE DISCLAIMED Some jurisdictions do not allow limitations on how long an implied warranty lasts so the above limitation may not apply to You This warranty gives You specific legal rights and You may also have other rights which vary by jurisdiction This warranty does not apply if the Product a has been altered except by Linksys b has not been installed operated repaired or maintained in accordance with instructions supplied by Linksys or c has been subjected to abnormal physical or electrical stress misuse negligence or accident In addition due to the continual development of new techniques for intruding upon and attacking networks Linksys does not warrant that the Product will be free of vulnerability to intrusion or attack TO THE EXTENT NO
107. way LEDs on Side Panel Home Wireless G Gateway The Bottom Panel The Gateway has a built in stand available If you place the Gateway flat on a surface then you can leave the stand in the closed position However if you want the Gateway to be upright swivel the stand clockwise 90 and position the Gateway accordingly Figure 3 3 Bottom Panel with Stand in Closed Position Figure 3 4 Gateway Using Stand Chapter 3 Getting to Know the Home Wireless G Gateway The Bottom Panel Chapter 4 Connecting the Home Wireless G Gateway Overview The installation technician from your ISP should have left the setup information for the modem with you after installing your broadband connection If not you can call your ISP to request that data After you have the setup information you need for your specific type of Internet connection you can begin installation and setup of the Gateway If you want to use a computer with an Ethernet adapter to configure the Gateway continue to Wired Connection to a Computer If you want to use a computer with a wireless adapter to configure the Gateway continue to Wireless Connection to a Computer Wired Connection to a Computer 1 Make sure that all of your network s hardware is powered off including the Gateway and all computers small device called a microfilter not included may be necessary between each phone and wall jack to prevent interference Contact your ISP if you have
108. way to automatically adjust to physical changes in the network s layout Using RIP the Gateway determines the network packets route based on the fewest number of hops between the source and the destination The RIP protocol regularly broadcasts routing information to other Gateways on the network e Transmit RIP Version To transmit RIP messages select the protocol you want RIP1 RIP1 Compatible or RIP2 If you don t want to transmit RIP messages select None Receive RIP Version To receive RIP messages select the protocol you want RIP1 or RIP2 If you don t want to receive RIP messages select None e Multicast or Broadcast RIP can be sent using either methods If you want to use multicasting select Multicast If you want to use Broadcast select Broadcast Static Routing If the Gateway is connected to more than one network it may be necessary to set up a static route between them A static route is a pre determined pathway that network information must travel to reach a specific host or network To create a static route change the following settings LINKSYS ho me G trated C Disabled C tretied C Disstisd Ense C Dusbied ra ea a Ts Delete This Entry Pe N NN Ca a B Ce EJ Show Routing Tabie Save Settings Cancel Changes Figure 5 12 Advanced Routing 21 Select set number Select the number of the static route from the drop down menu The Gateway supports up to 20 static r

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