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Cisco Systems WIRELESS-G WRT54GP2 User's Manual

1. 41 salasa A Rrnadhangd D rele G broadbdal no The Applications amp Gaming 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 or videoconferencing Application based QoS me 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 com i i a rite Enable Disable To use application based QoS select Enable Otherwise keep the default Disable i a i mi qa il i i i High priority Low priority For each application select High priority or Low priority 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 Figure 5 29 Applications amp Gaming Tab web server using FTP QoS 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 net
2. Appendix A Troubleshooting Common Problems and Solutions Frequently Asked Questions Appendix B Wireless Security Security Precautions Security Threats Facing Wireless Networks Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter Windows 98 or Me Instructions Windows 2000 or XP Instructions For the Router s Web based Utility Appendix D Windows Help Appendix E Glossary Appendix F Specifications Appendix G Warranty Information Appendix H Regulatory Information Appendix Contact Information List of Figures Figure 3 1 Back Panel Figure 3 2 Front Panel Figure 4 1 Router Connection Diagram Figure 4 1 Connect a PC Figure 4 2 Connect a Telephone Figure 4 3 Connect the Modem Figure 4 4 Connect the Power Figure 5 1 Router s IP Address Figure 5 2 Router Login Figure 5 3 Setup Tab Basic Setup Obtain an IP automatically Figure 5 4 Static IP Figure 5 5 PPPoE Figure 5 6 RAS for Singtel Figure 5 7 PPTP Figure 5 8 Heart Beat Signal Figure 5 9 Setup Tab DDNS DynDNS org Figure 5 10 Setup Tab DDNS TZO com Figure 5 11 Setup Tab MAC Address Clone Figure 5 12 Setup Tab Advanced Routing 11 12 12 12 12 16 16 17 18 19 19 20 21 25 25 26 27 Figure 5 13 Routing Table Entry List Figure 5 14 Wireless Tab Basic Wireless Settings Figure 5 15 Wireless Tab Wireless Security WPA Pre Shared Key Figure 5 16 Wireless Tab
3. 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 92 Multicasting Sending data to a group of destinations at once NAT Network Address Translation NAT technology translates IP addresses of a local area network to a different IP address for the Internet NAT Network Address Translation Traversal A method of enabling specialized applications such as Internet phone calls video and audio to travel between your local network and the Internet STUN is a specific type of NAT traversal 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 connect
4. Number of Address Optional Enter the maximum number of PCs that you want the DHCP server to assign IP addresses to This number cannot be greater than 253 The default is 50 DHCP Address Range The range of DHCP addresses is displayed here Client Lease Time The Client Lease Time is the amount of time a network user will be allowed connection to the Router with their current dynamic IP address Enter the amount of time in minutes that the user will be leased this dynamic IP address After the dynamic IP address has expired the user will be automatically assigned anew dynamic ip address a temporary IP dynamic IP address The default is 0 minutes which means one day address assigned by a DHCP server 21 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 Router 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 Time Setting Change the time zone in which your network functions from this pull down menu When you have finished making changes to this screen click the Save Settings button to save the changes or click the Cancel Changes
5. Power WLAN Wireless G Ethernet 1 3 Phone 1 2 Internet TCP IP Voice Protocol Voice Codecs Ringer Equivalence Number REN Ring Frequency FXS Port Impedance Ring Voltage Security Features Wireless Security Features UPnP able cert Session Initiation Protocol Version 2 RFC 3261 3262 3263 3264 G 711 a law G 711p Law G 726 G 729 A G 723 1 5 REN per RJ 11 port 10 Hz 40 Hz Eight Configurable Setting Including North America 600 ohms European CTR21 60 90 Vrms Configurable NAT Firewall WPA WEP TKIP RADIUS Wireless MAC Filtering Certified 97 Dimensions WxHxD Unit Weight Power Certifications Operating Temp Storage Temp Operating Humidity Storage Humidity Warranty 98 7 32 x 1 89 x 7 87 186 mm x 48 mm x 200 mm 13 30 oz 0 38 kg External 12V DC 1 0A FCC CE cUL 0 to 40 C 32 to 104 F 20 to 70 C 4 to 158 F 10 to 85 Non Condensing 5 to 90 Non Condensing 1 Year Limited Appendix G Warranty Information LIMITED WARRANTY Your Internet phone service provider warrants to You that for a period of one year the Warranty Period your Linksys Product will be substantially free of defects in materials and workmanship under normal use Your exclusive remedy and Your Internet phone service provider s entire liability under this warranty will be for Your Internet phone service provider at its option to repair or replace the P
6. It is one of the IEEE standards for wireless networks The 802 11b standard allows wireless networking hardware from different manufacturers to communicate provided that the hardware complies with the 802 11b standard The 802 11b standard states a maximum data transfer rate of 11Mbps and an operating frequency of 2 4GHz What is the IEEE 802 119 standard It is 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 802 119 standard The 802 119 standard states a maximum data transfer rate of 54Mbps and an operating frequency of 2 4GHz What IEEE 802 11b features are supported The product supports the following IEEE 802 11b functions e CSMA CA plus Acknowledge protocol Multi Channel Roaming Automatic Rate Selection RTS CTS feature Fragmentation Power Management 75 What IEEE 802 119 features are supported The product supports the following IEEE 802 119 functions e CSMA CA plus Acknowledge protocol OFDM protocol Multi Channel Roaming Automatic Rate Selection RTS CTS feature Fragmentation Power Management 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 other The ad hoc wireless network will not communicate with any wired network What is infrastructure mode When a wireless n
7. 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 IMPORTANT Always A A remember that each device in 1 Use the highest level of encryption possible your wireless network MUST use the same encryption method and encryption key or 3 Change your WEP key regularly A sa eile will not unction properly 2 Use Shared Key authentication 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 one encryption methods TKIP Temporal Key Integrity Protocol which utilizes a stronger encryption method and incorporates Message Integrity Code MIC to provide protection against hackers 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 Router or other device how often it should change the encryption keys 83 WPA RADIUS WPA used in coordination with a RADIUS server This should only be used when a RADIUS
8. Wireless e Basic Wireless Settings Enter the basic settings for your wireless network on this screen e Wireless Security Enable and configure the security settings for your wireless network e Wireless Network Access To permit or deny wireless network access for specific devices set up MAC address filtering e Advanced Wireless Advanced users can alter data tranmission settings on this screen Security e Filter To block specific users from Internet access you can set up IP address port and MAC address filtering e VPN Passthrough To enable or disable IPSec PPPoE and or PPTP Passthrough use this screen 12 Voice Access to the Voice tab is restricted by your Internet phone service provider Contact your provider for more information Applications amp Gaming e Port Range Forwarding Set up public services or other specialized Internet applications on your network e Port Triggering To set up triggered ranges and forwarded ranges for Internet applications click this tab e UPnP Forwarding Use this screen to alter UPnP forwarding settings e DMZ Click this tab to allow one local user to be exposed to the Internet for use of special purpose services e QoS Enable QoS Quality of Service to maximize network performance Administration e Management On this screen alter the Router s password access privileges and UPnP settings You can also back up and restore the Router s configuration if necessary e
9. Wireless Security WPA RADIUS Figure 5 17 Wireless Tab Wireless Security WEP Figure 5 18 Wireless Tab Wireless Network Access Figure 5 19 Wireless Client MAC List Figure 5 20 Advanced Wireless Settings Figure 5 21 Security Tab Filter Figure 5 22 Filtered MAC Address Figure 5 23 Security Tab VPN Passthrough Figure 5 24 Voice Tab Figure 5 25 Applications amp Gaming Tab Port Range Forwarding 28 29 30 31 31 32 32 33 35 36 37 38 38 Figure 5 26 Applications amp Gaming Tab Port Triggering 39 Figure 5 27 Applications amp Gaming Tab UPnP Forwarding 40 Figure 5 28 Applications amp Gaming Tab DMZ Figure 5 29 Applications amp Gaming Tab QoS Figure 5 30 Administration Tab Management Figure 5 31 Back up amp Restore Configuration 43 44 47 48 Figure 5 32 Administration Tab Log Figure 5 33 Incoming Log Table Figure 5 34 Outgoing Log Table Figure 5 35 Administration Tab Factory Defaults Figure 5 36 Administration Tab Firmware Upgrade Figure 5 37 Status Tab Voice Figure 5 38 Status Tab Router Figure 5 39 Status Tab Local Network Figure 5 40 DHCP Active IP Table Figure 5 41 Status Tab Wireless Figure C 1 IP Configuration Screen Figure C 2 MAC Adapter Address Figure C 3 MAC Physical Address Figure C 4 MAC Address Clone Figure C 5 MAC Address Filter Chapter 1 Introduction Welcome Thank you for choosing the Linksys Wireless G
10. Broadband Router with 2 Phone Ports This Router will allow you to network wirelessly better than ever sharing Internet access files and fun easily and securely Plus after you have set up your Internet phone service you can make phone or fax calls using your Internet connection How does the Router do all of this A router is a device that allows access to an Internet connection over a network With the Wireless G Broadband Router with 2 Phone Ports this access can be shared over the three switched ports or via the wireless broadcast at either up to 11Mbps for Wireless B or up to 54Mbps for Wireless G In addition the WPA standard provides greater security opportunities while the whole network is protected through NAT technology All of these security features as well as full configurability are accessed 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 Multiple computers can share Internet access so you don t need more than one high speed Internet connection After you set up your Internet phone account you can also use your Internet access to make Internet phone or fax calls even while you re surfing the Internet Plus 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 All the while the Router protects your ne
11. Enter any name you want to use for the Application Name Enter the Start and End Ports of the Triggered Port Range Check with your Internet application provider for more information on which outgoing port services it is using F Enter the Start and End Ports of the Forwarded Port Range Check with your Internet application provider for more information on which incoming port services are required by the Internet application moow 17 When I enter a URL or IP address I get a time out error or am prompted to retry 68 Go through this checklist until your problem is solved e Check if other PCs work If they do ensure that your workstation s IP settings are correct IP Address Subnet Mask Default Gateway and DNS Restart the computer that is having a problem e Ifthe PCs are configured correctly but still not working check the Router 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 e If the Router is configured correctly check your Internet connection DSL cable modem etc to see if it is working correctly You can remove the Router to verify a direct connection e Manually configure the TCP IP with a DNS address provided by your ISP e 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 Ex
12. Spread Spectrum FHSS 77 What is DSSS What is FHSS And what are their differences Frequency Hopping Spread Spectrum FHSS uses a narrowband 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 What is WEP WEP is Wired Equivalent Privacy a data privacy mechanism based on a shared key algorithm as described in the IEEE 802 11 standard What is WPA WPA is Wi Fi Protected Access a wireless security protocol that can be used in conjunction with a RADIUS server 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 prac
13. 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 NOTE Some of these security 3 Change the default password for the Administrator account A T a through the network router or 4 Enable MAC Address Filtering access point Refer to the router or access point s 5 Change the SSID periodically documentation for more information 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 6 Configuring the Router 81 Security Threats Facing Wireless 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 Her
14. changes When enabled this feature allows you to make manual changes while still using the UPnP feature Allow users to disable Internet access When enabled this feature allows you to prohibit any and all Internet connections Backup and Restore Backup and Restore If you want to back up or restore the Router s configuration file click this button The Backup amp Restore Configuration screen will appear mae To back up the Router s configuration file click the Backup button Then follow the on screen instructions To restore the Router s configuration file click the Browse button to locate the file and follow the on screen instructions After you have selected the file click the Restore button Figure 5 31 Back up amp Restore Configuration When you have finished making changes to this screen click the Save Settings button to save the changes or click the Cancel Changes button to undo your changes Help information is shown on the right hand side of a screen For additional information click More 46 The Administration Tab Log When you click the Administration tab you will see the Log screen It provides you with a log of all incoming and outgoing URLs or IP addresses for your Internet connection Log Log To access activity logs select the Yes radio button With logging enabled you can choose to view temporary logs or keep a permanent record using the Logviewer software Click the No button to disable th
15. channel on which your wireless network is broadcasting Encryption Function As selected on the Wireless Security tab this will display what type of encryption the Router uses for security Click the Refresh button to update the on screen information Help information is shown on the right hand side of a screen For additional information click More 52 figuring the Router he Status Tab Appendix A Troubleshooting This appendix provides solutions to problems that may occur during the installation and operation of the Router Read the description below to solve your problems If you can t find an answer here check the Internet phone service provider website or the Linksys website at www linksys com Common Problems and Solutions 1 I don t hear a dial tone and the PHONE or PHONE2 LED is not lit Go through this checklist until your problem is solved e Make sure the telephone is plugged into the appropriate port Phone 1 or Phone 2 e Disconnect and re connect the RJ 11 telephone cable between the Router and telephone e Make sure your telephone is set to its tone setting not pulse e Make sure your network has an active Internet connection Try to access the Internet and check to see if the Router s Internet LED is lit If you do not have a connection power off your network devices including the Router and cable DSL modem Wait 30 seconds and power on the cable DSL modem first Then power on the Router and othe
16. chapter will describe each web page on 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 Router For a basic wireless network setup most users only have to use the following screens of the Utility e Basic Setup On the Basic Setup screen enter the Internet connection settings provided by your ISP If you do not have this information you can call your ISP to request the settings Once you have the setup information for your specific type of Internet connection then you can configure the Router e Management Click the Administration tab and then the Management tab The Router s default password is admin To secure the Router change the Password from its default e Wireless On the Basic Wireless Settings screen set the basic configuration for your wireless network There are seven main tabs Setup Wireless Security Voice Applications amp Gaming Administration and Status Additional tabs will be available after you click one of the main tabs 11 Setup e Basic Setup Enter the Internet connection and network settings on this screen e DDNS Enable the Router s Dynamic Domain Name System DDNS feature on this screen e MAC Address Clone If you need to clone a MAC address onto the Router use this screen e Advanced Routing On this screen you can alter Network Address Translation NAT Dynamic Routing and Static Routing configurations
17. control network access RJ 45 Registered Jack 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 RTP Real time Transport Protocol A protocol that enables specialized applications such as Internet phone calls video and audio to occur in real time 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 Market 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 Spread Spectrum Wideband radio frequency technique used for more reliable and secure data transmission 94 SSID Service Set IDentifier Your wireless network s name Static IP Address A fixed addres
18. determines the maximum number of steps between network nodes that data packets will travel A node is any device on the network such as PCs print servers routers etc Interface Select Local or Internet depending on the location of the static route s final destination Delete Entry If you need to delete a route select its number from the drop down menu and click the Delete Entry button SEEN Ramah Destination LAN IP Subnet Mash Defadt Cotewey Mop Coumt interface T LAN Show Routing Table Click the Show Routing Table button to open a screen displaying how data is routed Ea S E through your local network For each route the Destination LAN IP address Subnet Mask Default Gateway Hop Count and Interface are displayed Click the Refresh button to update the information Figure 5 13 Routing Table Entry List When you have finished making changes to this screen click the Save Settings button to save the changes or click the Cancel Changes button to undo your changes Help information is shown on the right hand side of a screen For additional information click More 26 The Wireless Tab Basic Wireless Settings The basic settings for wireless networking are set on this screen Wireless Network Mode From this drop down menu you can select the wireless standards running on your network If you have both 802 11g and 802 11b devices in your network keep the default setting Mixed If you have only 802 119 devices select G On
19. due to inactivity Connect on Demand enables the Router to automatically re establish your connection as soon as you attempt to access the Internet again If you wish to activate Connect on Demand Click the radio button If you want your Internet connection to remain on at all times enter 0 in the Max Idle Time field Otherwise enter the number of minutes you want to have elapsed before your Internet access disconnects A PPPoE 7 User Name Basvword ee sevienom C Connect on Demand Max Idle Time Min Keep Alive Redial Period 30 Sec Figure 5 5 PPPoE NOTE For DSL users if you need to enable PPPoE support remember to remove any PPPoE applications that are installed on your PCs RAS for SingTel User Name Password RAS Pian 512k Ethernet C Connect on Demand Mex Idle Time Min Keep Alive Redisl Period 30 Sec Figure 5 6 RAS for Singtel 17 18 Keep Alive and Redial Period This option keeps your Internet access connected indefinitely even when it sits idle If you select this option the Router will periodically check your Internet connection If the connection is down then the Router will automatically re establish the connection To use this option click the radio button next to Keep Alive The default Redial Period is 30 seconds When you are finished click the Save Settings button Then click the Status tab and click the Connect button to start the connection PPTP
20. enter the number of minutes you want to have elapsed before your Internet access disconnects Keep Alive and Redial Period This option keeps your Internet access connected indefinitely even when it sits idle If you select this option the Router will periodically check your Internet connection If the HeatBeatSignel User Name a cians p Heart Beat Server 0 fo Jo Jo C Connect on Demand Mex Idie Time E Min Keep Alive Redial Period 30 Sec Figure 5 8 Heart Beat Signal 19 connection is down then the Router will automatically re establish the connection To use this option click the radio button next to Keep Alive The default Redial Period is 30 seconds When you are finished click the Save Settings button Then click the Status tab and click the Connect button to start the connection Optional Settings Some of these settings may be required by your ISP Verify with your ISP before making any changes Host Name and Domain Name These fields allow you to supply a host and domain name for the Router 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 leaving these fields blank will work MTU The MTU Maximum Transmission Unit setting specifies the largest packet size permitted for network packet a unit of data sent over transmission Select Enable and enter the valu
21. into both fields For instance if you wish to filter the PC with the IP address of 192 168 15 5 enter 5 into both fields on one line 192 168 15 5 192 168 15 5 on Filter Port Range You can create up to five different Port Range filters To filter users by network port number select the protocol Figure 5 21 Security Tab Filter you want to filter TCP UDP or Both from the Protoco drop down menu Enter the port numbers you want to filter in the Start and End fields Users connected to the Router will no longer be able to access any port number listed there Filter MAC Address This feature blocks computers with specific MAC addresses from going out to the Internet For information on obtaining a MAC address go to Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter To set the MAC filter click the Edit MAC Filter Setting button Chapter 5 Configuring the Router 33 The Security Tab Filter Edit MAC Filter Setting Click the Edit MAC Filter Setting button Select the range of MAC address entries in the drop down box In each mac field enter the MAC address you want to filter Click the Apply button before Closing the window To cancel changes click the Undo button Block WAN Requests Use these features to enhance your network s security and filter multicasting Block Anonymous Internet Requests This keeps your network from being pinged or detected and reinforces your network s
22. network subnet mask an address code that determines the size of the network default gateway a device that forwards Internet traffic from your local area network pppoe a type of broadband connection that provides authentication username and password in addition to data transport Time field Otherwise enter the number of minutes you want to have elapsed before your Internet access disconnects Keep Alive and Redial Period This option keeps your Internet access connected indefinitely even when it sits idle If you select this option the Router will periodically check your Internet connection If the connection is down then the Router will automatically re establish the connection To use this option click the radio button next to Keep Alive The default Redial Period is 30 seconds When you are finished click the Save Settings button Then click the Status tab and click the Connect button to start the connection RAS for SingTel Remote Access Service RAS is a service that applies to connections in Singapore only For users in Singapore check with Singtel for information on RAS User Name and Password Enter the User Name and Password supplied by Singtel RAS Plan Select the type of plan you have Connect on Demand and Max Idle Time You can configure the Router to cut the Internet connection after it has been inactive for a specific period of time Max Idle Time If your Internet connection has been terminated
23. of the DDNS service connection is displayed here TZ0 com E mail Address Password and Domain Name Enter the Email Address Password and Domain Name of the service you set up with TZO Internet IP Address The Router 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 you have finished making changes to this screen click the Update button to save the changes or click the Cancel Changes button to undo your changes Help information is shown on the right hand side of a Figure 5 10 Setup Tab DDNS TZ0 com screen For additional information click More io 1 5 Configuring the Router 23 tup Tab DDNS The Setup Tab MAC Address Clone AMAC address is a 12 digit code assigned to a unique piece of hardware for identification like a social security number Some ISPs will require you to register a MAC address in order to access the Internet If you do not wish to re register the MAC address with your ISP you may assign the MAC address you have currently ae a ers registered with your ISP to the Router with the MAC Address Clone feature oJ MAC Clone MAC Clone Service To use MAC address cloning select Enable Figure 5 11 Setup Tab MAC Address Enter the MAC Address registered with your ISP Then click the Save Settings button MAC Address Clone Clone If you want to clone the MAC address of
24. seen by external users on the Internet including your ISP Your ISP will provide you with the Subnet Mask Default Gateway Your ISP will provide you with the Default Gateway Address DNS 1 3 Your ISP will provide you with at least one DNS Domain Name System Server IP Address PPPoE Some DSL based ISPs use PPPoE Point to Point Protocol over Ethernet to establish Internet connections for end users If you use a DSL line check with your ISP to see if they use PPPoE If they do you will have to enable it User Name and Password Enter the User Name and Password provided by your ISP Service Name If provided by your ISP enter the Service Name Connect on Demand and Max Idle Time You can configure the Router to cut the Internet connection after it has been inactive for a specific period of time Max Idle Time If your Internet connection has been terminated due to inactivity Connect on Demand enables the Router to automatically re establish your connection as soon as you attempt to access the Internet again If you wish to activate Connect on Demand Click the radio button If you want your Internet connection to remain on at all times enter 0 in the Max Idle Static IP bd IP Address fo fo mp fo Subnetmask 255 255 255 0 Detaut Gateway 0 0 fo fo DNS 1 fo fo fo Cfo DNS 2 fo fo fof ONS 3 fo fo fo fo Figure 5 4 Static IP static ip address a fixed address assigned to a computer or device connected to a
25. server is connected to the Router 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 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 84 AppendixC FindingtheMACAddressandlPAddressforYour Ethernet Adapter This section 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 Router You can also find the IP address of your computer s Ethernet adapter This IP address is used for the Router 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 1 Click Start and Run In the Open field enter winipefg Then press the Enter key or the OK button 2 When the P Configuration screen appears select the Ethernet adapter you have connected to the Router via a CAT 5 Ethernet network cable 3 Write down
26. the PC you are currently using to configure the Router then click mac address the unique address that a the Clone button The Router will automatically detect your PC s MAC address so you do NOT have to call your manufacturer assigns to each networking ISP to change the registered MAC address to the Router s MAC address It is recommended that the PC device registered with the ISP is used to open the MAC Address Clone screen When you have finished making changes to this screen click the Save Settings button to save the changes or Click the Cancel Changes button to undo your changes Help information is shown on the right hand side of a screen For additional information click More 24 pter 5 guring the Rou The Setup Tab Advanced Routing The Advanced Routing screen allows you to configure the Network Address Translation NAT dynamic routing and static routing settings Advanced Routing NAT NAT is a security feature that is enabled by default It enables the Router to translate IP addresses of your local area network to a different IP address for the Internet To disable NAT click the Disable radio button When NAT is disabled the DHCP server feature is also disabled Dynamic Routing This feature enables the Router to automatically adjust to physical changes in the network s layout and exchange routing tables with the other router s The Router determines the network packets route based on the fewest number of h
27. transfer agent MTA which stores and forwards the mail DNS Domain Name System The way that Internet domain names are located and translated into IP addresses A domain name is a meaningful and easy to remember handle for an Internet address TFTP Trivial File Transfer Protocol A version of the TCP IP FTP protocol that has no directory or password capability Finger A UNIX command widely used on the Internet to find out information about a particular user such as a telephone number whether the user is currently logged on and the last time the user was logged on The person being fingered must have placed his or her profile on the system in order for the information to be available Fingering requires entering the full user domain address 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 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 39 NNTP Network News Transfer Protocol The protocol used to connect to Usenet groups on the Internet Usenet newsreaders su
28. using Port Range Forwarding complete the following fields Figure 5 25 Applications amp Gaming Tab Application Enter the name of the application Port Range Forwarding Start and End Enter the number or range of external port s used by the server or Internet application Check with the Internet application software documentation for more information 36 Chapter 5 Configuring the Protocol Select the protocol TCP or UDP or select Both tcp a network protocol for transmitting data that requires acknowledgement from IP Address Enter the IP address of the server that you want the Internet users to be able to access To find the the recipient of data sent IP address go to Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter s f udp a network protocol for transmitting Enable Check the Enable box to enable the services you have defined Port Range Forwarding will not function data that does not re quire if the Enabled button is left unchecked This is disabled unchecked by default acknowledgement from the recipient of When you have finished making changes to this screen click the Save Settings button to save the changes or the data that is sent Click the Cancel Changes button to undo your changes Help information is shown on the right hand side of a ip internet protocol a protocol used to screen For additional information click More send data over a network The Applications amp
29. 00x 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 Just forward port 27015 to the local IP address of the server computer How can I block corrupted FTP downloads If you are experiencing corrupted files when you download a file with your FTP client try using another FTP program The web page hangs downloads are corrupt or nothing but junk characters are being displayed on the screen What do I need to do Force your Ethernet adapter to 10Mbps 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 71 Advanced Properties tab Make sure that your proxy setting is disabled in the browser Check our website at www linksys com for more information 72 If all else fails in the installation what can I do Reset the Router by holding down the Reset button for approximately five seconds Reset your cable or DSL modem by powering the unit off and then on Contact your Internet phone service provider for assistance Refer to Appendix H Contact Information for contact information Will the Router f
30. AWG or larger telecommunication line cord Do not use this product near water for example in a wet basement or near a swimming pool Avoid using this product during an electrical storm There may be a remote risk of electric shock from lightning 102 Appendix Contact Information Need to contact Linksys Visit us online for information on the latest products and updates to your existing products at Can t find information about a product you want to buy on the web Do you want to know more about networking with Linksys products Give our advice line a call at Or fax your request in to If you experience problems with any Linksys product you can Call us at Don t wish to call You can e mail us at http www linksys com or ftp linksys com 800 546 5797 LINKSYS 949 823 3002 800 326 7114 support linksys com 103 Wireless G Broadband Router with 2 Phone Ports 104 Appendix I Contact Information www linksys com
31. Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter to verify that your computer has an IP Address Subnet Mask Gateway and DNS Set a static IP address on your system refer to Problem 3 need to set a static IP address on a PC Refer to Problem 12 am a PPPoE user and need to remove the proxy settings or the dial up pop up window I can t get my Virtual Private Network VPN to work through the Router Access the Router s web interface by going to http 192 168 15 1 or the IP address of the Router and go to the Security gt VPN Passthrough tab Make sure you have IPsec passthrough and or PPTP passthrough 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 Router however simultaneous IPSec sessions may be possible depending on the specifics of your VPNs 61 62 VPNs that use IPSec and AH Authentication Header known as protocol 51 are incompatible with the Router AH has limitations due to occasional incompatibility with the NAT standard Change the IP address for the Router 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 15 X X is a number from 1 to 254 and your local LAN IP address is 192 168 15 X X is the same number used in the VPN IP address t
32. Beacon Interval The default value is 100 Enter a value between 1 and 65 535 milliseconds The Beacon Interval value indicates the frequency interval of the beacon A beacon is a packet broadcast by the Router to synchronize the wireless network DTIM Interval This value between 1 and 255 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 Router 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 The default value is 1 Fragmentation Threshold This value 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 reduction of the default value is recommended In most cases it should remain at its default value of 2346 RTS Threshold Should you encounter inconsistent data flow only minor reduction of the default value 2347 is recommended If a network packet is smaller than the preset RTS threshold size the RTS CTS mechanism will not be enabled The Router sends Request to Send RTS frames to a particular receiving statio
33. Connect one end of an Ethernet network cable to one of the numbered ports on the back of the Router Connect the other end to an Ethernet port on a network device e g a PC print server or switch Repeat this step to connect more PCs or other network devices to the Router Plug a standard telephone into the Router s Phone port i NOTE Make sure your telephone is set to its tone setting not pulse 12 If you have a second Internet phone or fax line repeat step 3 to connect a telephone or fax machine to the Router s Phone2 port Connect your cable or DSL modem s Ethernet cable to the Router s Internet port Power on the cable or DSL modem Connect the included power adapter to the Router s Power port and then plug the power adapter into an electrical outlet The Power LED on the front panel will light up when the adapter is connected properly Power on your PC s Proceed to Chapter 5 Configuring the Router Figure 4 1 Connect a PC pra Figure 4 2 Connect a Telephone Figure 4 3 Connect the Modem J Figure 4 4 Connect the Power Chapter 5 Configuring the Router Overview Linksys recommends using the Setup CD ROM for first time installation of the Router If you do not wish to run the Setup Wizard on the Setup CD ROM then you can use the Web based Utility to configure the Router For advanced users you may configure the Router s advanced settings through the Web based Utility This
34. Gaming Tab Port Triggering ip address the address used to identify a computer or device on a network The Port Triggering screen allows the Router to watch outgoing data for specific port numbers The IP address of the computer that sends the matching data is remembered by the Router so that when the requested data returns through the Router the data is pulled back to the proper computer by way of IP address and port mapping rules H I 1 i Port Triggering Application Enter the application name of the trigger Triggered Range Wah 1111777771 1071713107 WIN 47999979171 For each application list the triggered port number range Check with the Internet application documentation iii for the port number s needed Figure 5 26 Applications amp Gaming Tab Start Port Enter the starting port number of the Triggered Range Port Triggering lap 5 Configuring t Router 37 Wireless G Broadband End Port Enter the ending port number of the Triggered Range Forwarded Range For each application list the forwarded port number range Check with the Internet application documentation for the port number s needed Start Port Enter the starting port number of the Forwarded Range End Port Enter the ending port number of the Forwarded Range When you have finished making changes to this screen click the Save Settings button to save the changes or click the Cancel Changes button to undo yo
35. LINKSYS A Division of Cisco Systems Inc 2AGHz Cisco SYSTEMS Model No WRT54GP2 i 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 2004 Cisco Systems Inc All rights reserved Other brands and product names are trademarks or registered trademarks of their respective holders WARNING This product contains chemicals including lead known to the State of California to cause cancer and birth defects or other reproductive harm Wash hands after handling How to Use this Guide Your guide to the Wireless G Broadband Router with 2 Phone Ports has been designed to make understanding networking with the Router easier than ever Look for the following items when reading this guide This exclamation point means there is a caution or warning and is A something that could damage your property or the Router This question mark provides you with a reminder about something you A might need to do while using the Router This checkmark means there is a note of interest and is something you A should pay special attention to while using the Router 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 desc
36. Log If you want to view or save activity logs click this tab e Factory Defaults If you want to reset the Router to its factory default settings then you will need a password available only from your Internet phone service provider Contact your provider for more information e Firmware Upgrade Upgrading the Router s firmware requires a password available only from your Internet phone service provider Contact your provider for more information 13 Status e Voice This screen provides status information about your Internet phone lines e Router This screen provides status information about the Router e Local Network This provides status information about the local network How to Access the Web based Utility To access the Web based Utility of the Router launch Internet Explorer or Netscape Navigator and enter the Enea Router s default IP address 192 168 15 1 in the Address field Press the Enter key Suaa El tp 192 168 15 1 ae Figure 5 1 Router s IP Ascreen will appear asking you for your User name and Password Enter admin in the User Name and Password Address fields Then click the OK button Enter Network Password Make the necessary changes through the Utility When you have finished making changes to a screen click the Save Settings button to save the changes or click the Cancel Changes button to undo your changes Help Y Please type your user name and password information is shown on the ri
37. N Passthrough screen allows you to allow VPN tunnels using IPSec PPPoE or PPTP protocols to pass through the Router VPN Passthrough IPSec Passthrough IPSec Internet Protocol Security is a suite of protocols used to implement secure exchange of packets at the IP layer To allow IPSec Passthrough click the Enabled button To disable IPSec Passthrough click the Disabled button PPPoE Passthrough PPPoE Point to Point over Ethernet 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 Router To allow PPPoE Passthrough click the Enabled button To disable PPPoE Passthrough click the Disabled button PPTP Pass Through PPTP Point to Point Tunneling Protocol Passthrough allows the Point to Point PPP to be tunneled through an IP network To allow PPTP Passthrough click the Enabled button To disable PPTP Passthrough click the Disabled button When you have finished making changes to this screen click the Save Settings button to save the changes or click the Cancel Changes button to undo your changes Help information is shown on the right hand side of a screen For additional information click More Figure 5 23 Security Tab VPN Passthrough vpn a security measure to protect data as it leaves one network and goes to another over the Internet ipsec a VPN protocol used to implement secure exchange of packets at the IP layer pppoe
38. Point to Point Tunneling Protocol PPTP is a service that applies to connections in Europe and Israel only IP Address This is the IP address that the Router has when seen from the Internet Your ISP will provide you with the IP Address you need to specify here Subnet Mask This is the Router s Subnet Mask as seen by external users on the Internet including your ISP Your ISP will provide you with the Subnet Mask Default Gateway Your ISP will provide you with the Default Gateway Address User Name and Password Enter the User Name and Password provided by your ISP Connect on Demand and Max Idle Time You can configure the Router to cut the Internet connection after it has been inactive for a specific period of time Max Idle Time If your Internet connection has been terminated due to inactivity Connect on Demand enables the Router to automatically re establish your connection as soon as you attempt to access the Internet again If you wish to activate Connect on Demand Click the radio button If you want your Internet connection to remain on at all times enter 0 in the Max Idle Time field Otherwise enter the number of minutes you want to have elapsed before your Internet access disconnects PPTP z IP Address fo fo fo Detaut Gateway 0 0 0 t User Name gt Satie ee C Connect on Demand Max Idie Time E Min Keep Alive Redial Period 30 Sec Figure 5 7 PPTP Keep Alive and Redial Period This opt
39. Run In the Open field type cmd Press the Enter key or Click the OK button In the command prompt type ping 192 168 15 1 and press the Enter key e If you get a reply the computer is communicating with the Router e if you do NOT get a reply 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 IP address and press the Enter key The Internet IP Address can be found in the web interface of the Router For example if your Internet IP address is 1 2 3 4 you would enter ping 1 2 3 4 and press the Enter key e Ifyou get a reply the computer is connected to the Router e Ifyou 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 linksys com and press the Enter key e Ifyou 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 e Ifyou do NOT get a reply there 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 5 Iam not getting an IP address on the Internet with my Internet connection 60 A B Refer to Problem 4 want to t
40. WPA Pre Shared Key WPA RADIUS This option features WPA used in coordination with a RADIUS server This should only be used when a RADIUS server is connected to the Router First Select TKIP from the WPA Algorithm drop down menu Enter the RADIUS server s IP address and port number along with the WPA Shared Key which is the key shared between the Router and the server Last enter the Group Key Renewal period which instructs the Router how a often it should change the encryption keys naan When you have finished making changes on this screen click the Save Settings button to save the changes or es click the Cancel Changes button to undo your changes Help information is shown on the right hand side of a screen For additional information click More Figure 5 16 Wireless Tab Wireless Security WPA RADIUS radius a protocol that uses an authentication server to control network access WEP WEP is a basic encryption method which is not as secure as WPA To use WEP select a level of WEP encryption 64 bits 10 hex digits or 128 bits 26 hex digits If you want to use a Passphrase then enter it in the Passphrase for keys field and click the Generate button If you want to enter the WEP key manually then enter it in the WEP Key field s To indicate which WEP key to use select the appropriate Default Key number z When you have finished making changes on this screen click the Save Settings button to save the changes or ca
41. a type of broadband connection that provides authentication username and password in addition to data transport pptp 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 35 Wireless G Broadband Router with 2 Phone Ports The Voice Tab Access to the Voice tab is restricted by your Internet phone service provider Contact your provider for more information Pees smtm mma eens ome tr Nether eterna The Applications amp Gaming Tab Port Range Forwarding When you click the Applications amp Gaming tab you will see the Port Range Forwarding screen Port Range Figure 5 24 Voice Tab Forwarding sets up public services on your network such as web servers ftp servers e mail servers or other specialized Internet applications Specialized Internet applications are any applications that use Internet access to perform functions such as videoconferencing or online gaming Some Internet applications may not require any forwarding When users send this type of request to your network via the Internet the Router will forward ESS those requests to the appropriate PC Before using forwarding you should assign a static IP address to the designated PC If you need to forward all ports to one PC click the DMZ tab e Port Range Forwarding Cc ko SS Port Range To add a server
42. and attacking networks Your Internet phone service provider does not warrant that the Product will be free of vulnerability to intrusion or attack TO THE EXTENT NOT PROHIBITED BY LAW IN NO EVENT WILL YOUR INTERNET PHONE SERVICE PROVIDER 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 Your Internet phone service provider HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES IN NO EVENT WILL Your Internet phone service provider 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 Please contact your Internet phone service provider regarding the warranty for the Product 99 Wireless G Broadband Router with 2 Phone Ports 100 Appendix G Warranty Information Appendix H Regulatory Information FCC Statement This product has been tested and complies with the specifications for a Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interfere
43. ating 802 119 standards and wired networks allowing them to communicate with each other frequency of 2 4GHz To create your network install and set up the Router To guide you through the process Linksys strongly 802 119 an IEEE wireless networking recommends that you run the Setup Wizard on the Setup CD ROM If you prefer to manually set up the Router standard that specifies a maximum data use the instructions in the Quick Installation or this Installation and Troubleshooting Guide to help you These transfer rate of 54Mbps an operating instructions should be all you need to get the most out of the Wireless G Broadband Router with 2 Phone Ports frequency of 2 4GHz and backward compatibility with 802 11b devices What s in this Guide This guide covers the basic steps for setting up a network with a router After going through Chapter 3 Getting to Know the Router most users will only need to use the following chapters e Chapter 4 Connecting the Router This chapter instructs you on how to connect the Router to your cable or DSL modem PCs and telephones or fax machines e Chapter 5 Configuring the Router This chapter explains how to configure the Router using your web browser and the Router s Web based Utility You will configure the Router using the settings provided by your ISP When you re finished with the basic steps then you are ready to connect to the Internet You also have other chapters available for refer
44. button to undo your changes Help information is shown on the right hand side of a screen For additional information click More i NOTE To test your settings connect to the Internet now The Setup Tab DDNS The Router 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 Router Before you can use this feature you need to sign up for DDNS service at one of two DDNS service providers DynDNS org or TZO com If you do not want to use this feature keep the default setting Disable 22 ddns 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 and Router with 2 Phone Ports 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 then select TZ0 com The features available on the DDNS screen will vary depending on which DDNS service provider you use 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 Sangre Internet IP Address The Router s current Internet IP Address is displayed here Because it is dynamic it will change Figure 5 9 Setup Tab DDNS DynDNS org Status The status
45. ciated 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 Router You can only use an IP address in the ranges 192 168 15 2 to 192 168 15 99 and 192 168 15 151 to 192 168 15 254 Enter the Subnet Mask 255 255 255 0 Enter the Default Gateway 192 168 15 1 Router 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 nternet Protocol TCP IP Properties window Click the OK button in the Local Area Connection Properties window I want to test my Internet connection A Check your TCP IP settings For Windows 98 and Millennium Refer to Windows Help for details Make sure Obtain IP address automatically is selected in the settings For 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
46. click the Properties button Make sure that Obtain an IP address automatically and Obtain DNS server address automatically are selected 4 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 6 Click the OK button in the Internet Protocol TCP IP Properties window and click the OK button in the Local Area Connection Properties window 7 Restart the computer if asked g For 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 Click Start and Control Panel 2 Click the Network and Internet Connections icon and then the Network Connections icon 3 Right click the Local Area Connection that is associated with the Ethernet adapter you are using and select the Properties option 4 Inthe This connection uses the following items box highlight Internet Protocol TCP IP and click the Properties button Make sure that Obtain an IP address automatically and Obtain DNS server address automatically are selected B Open a command prompt e For Windows 98 and Millennium click Start and Run In the Open field type command Press the Enter key or click the OK button 59 e For Windows 2000 and XP click Start and
47. cloning or MAC filtering Figure C 3 MAC Physical Address The example shows the Ethernet adapter s IP address as 192 168 1 100 Your computer may show something different For the Router s Web based Utility For MAC address cloning enter the 12 digit MAC address in the fields provided two digits per field For MAC filtering enter the 12 digit MAC address in this format XXXXXXXXXXXX WITHOUT the hyphens Figure C 4 MAC Address Clone 7 i i taane mete ETT HEIHIN t Figure C 5 MAC Address Filter 86 Appendix D Windows Help Almost all Linksys products require Microsoft Windows Windows is the most used operating system in the world and comes with many features that help make networking easier These features can be accessed through Windows Help and are described in this appendix TCP IP Before a computer can communicate with a network router TCP IP must be enabled TCP IP is a set of instructions or protocol all PCs follow to communicate over a network This is true for wireless networks as well Your PCs will not be able to utilize wireless networking without having TCP IP enabled Windows Help provides complete instructions on enabling TCP IP Shared Resources If you wish to share printers folder or files over your network Windows Help provides complete instructions on utilizing shared resources Network Neighborhood My Network Places Other PCs on your network will appear under Network Neighbor
48. e Figure 5 39 Status Tab Local Network Subnet Mask The Router s Subnet Mask is shown here DHCP Server The status of the DHCP server is displayed here DHCP Client Table Click the DHCP Clients Table button to view a list of PCs that have been assigned IP DHCP Active IP Table ameh j addresses by the Router The DHCP Active IP Table screen lists the DHCP Server IP Address Client Hostnames IP OCD Server I address 197 160 15 1 Addresses MAC Addresses and Interfaces Click the Delete checkbox to delete a DHCP client listing Click the emery apn es Refresh button to update the information Figure 5 40 DHCP Active IP Table Click the Refresh button to update the on screen information Help information is shown on the right hand side of a screen For additional information click More 51 h 9 DH 10 Ase 2 Phone Ports The Status Tab Wireless The Wireless screen displays status information about your wireless network Wireless G Broat Wireless MAC Address The MAC Address of the Router s wireless network interface is displayed here Mode As selected from the Wireless tab this will display the wireless mode Mixed G Only or Disabled used by the network Figure 5 41 Status Tab Wireless SSID As entered on the Wireless tab this will display the wireless network name or SSID DHCP Server The status of the DHCP server is displayed here Channel As entered on the Wireless tab this will display the
49. e 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 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 linksys 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 82 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
50. e desired It is recommended that you leave this value inthe 1200 a network to 1500 range For most DSL users it is recommended to use the value 1492 By default MTU is set at 1500 when disabled Network Setup The Network Setup section allows you to change the Router s local network settings Router IP The values for the Router s Local IP Address and Subnet Mask are shown here In most cases keeping the default values will work 20 Local IP Address The default value is 192 168 15 1 Subnet Mask The default value is 255 255 255 0 Network Address Server Settings DHCP These settings allow you to configure the Router s Dynamic Host Configuration Protocol DHCP server function The Router can be used as a DHCP server for your network A DHCP server automatically assigns an IP address to each computer on your network Unless you already have one it is highly recommended that you leave the Router enabled as a DHCP server Local DHCP Server DHCP is enabled by factory default If you already have a DHCP server on your network set the Router s DHCP option to Disable If you disable DHCP remember to assign a static IP address to the Router Start IP Address Enter a value for the DHCP server to start with when issuing IP addresses Because the default IP address for the Router is 192 168 15 1 the Start IP Address must be 192 168 15 2 or greater but smaller than 192 168 15 254 The default Start IP Address is 192 168 15 100
51. e screen until you see the login status display as Connected If the connection is lost again follow steps E and F to re establish connection 15 I can t access my email web or VPN or am getting corrupted data from the Internet The Maximum Transmission Unit MTU setting may need to be adjusted By default the MTU is set at 1500 For most DSL users it is strongly recommended to use MTU 1492 If you are having some difficulties perform the following steps A B C D To connect to the Router go to the web browser and enter http 192 168 15 1 or the IP address of the Router Enter the password if asked The default password is admin On the Basic Setup tab look for the MTU option and select Enable In the Size field enter 1492 Click the Save Settings button to continue If 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 67 1362 1300 16 I need to use port triggering Port triggering looks at the outgoing port services used and will trigger the Router to open a specific port depending on which port an Internet application uses Follow these steps A To connect to the Router go to the web browser and enter http 192 168 15 1 or the IP address of the Router Enter the password if asked The default password is admin Click the Applications amp Gaming gt Port Triggering tab
52. ecurity gt VPN Passthrough tab Where is the Router installed on the network In a typical environment the Router is installed between the cable DSL modem and the local area network LAN Plug the Router into the cable DSL modem s Ethernet port Does the Router 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 the LAN 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 PC connected to the private LAN is never transmitted on the Internet Furthermore NAT allows the Router to be used with low cost Internet accounts such as DSL or cable modems 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 Router support any operating system other than Windows 98 Millennium 2000 or XP Yes but Linksys does not at this time provide technical support for setup configuration or troubleshooting of any n
53. ecurity by hiding your network ports so it is more difficult for intruders to work their way into your network Select Enabled to block anonymous Internet requests or Disabled to allow anonymous Internet requests Filter Multicast Multicasting allows for multiple transmissions to specific recipients at the same time If multicasting is permitted then the Router will allow IP multicast packets to be forwarded to the appropriate computers Select Enabled to filter multicasting or Disabled to disable this feature Filter Internet NAT Redirection This feature uses port forwarding to block access to local servers from local networked computers Select Enabled to filter Internet NAT redirection or Disabled to disable this feature Filter IDENT Port 113 This feature keeps port 113 from being scanned by devices outside of your local network Select Enabled to filter port 113 or Disabled to disable this feature When you have finished making changes to this screen click the Save Settings button to save the changes or click the Cancel Changes button to undo your changes Help information is shown on the right hand side of a screen For additional information click More 34 Hitered MAC Address 10 Filter Mode Allow Deny mac i mac 2 i mac 3 a meat Te mac 5 mae 04 mac 7 7 3 mac 8 J mac p mac 10 Asoy Unao Figure 5 22 Filtered MAC Address The Security Tab VPN Passthrough The VP
54. egularly 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 What is 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 main alternatives Direct Sequence Spread Spectrum DSSS and Frequency Hopping
55. ence Chapter 1 Introduction This chapter describes the Router s applications and this Installation and Troubleshooting Guide Chapter 2 Planning Your Wireless Network This chapter describes the basics of wireless networking Appendix A Troubleshooting This appendix describes some possible problems and solutions as well as frequently asked questions regarding installation and use of the Router Appendix B Wireless Security 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 instructs you on how to find the MAC address or Ethernet address of your PC s Ethernet network adapter Appendix D Windows Help This appendix describes how you can use Windows Help for instructions about networking such as installing the TCP IP protocol 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 Router Appendix G Warranty Information This appendix supplies the warranty information for the Router Appendix H Regulatory Information This appendix supplies the regulatory information regarding the Router Appendix Contact Information This appendix provides contact information for a variety of Linksys resources including Technical Support Chapter 2 Planning Your Wireles
56. ent 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 90 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 EAP 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
57. est my Internet connection to verify that you have connectivity If you need to register the MAC address of your Ethernet adapter with your ISP please see Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter If you need to clone the MAC address of your Ethernet adapter onto the Router see the MAC Address Clone section of Chapter 5 Configuring the Router for details B C D Make sure you are using the right Internet settings Contact your ISP to see if your Internet connection type is DHCP Static IP Address or PPPoE commonly used by DSL consumers Please refer to the Basic Setup section of Chapter 5 Configuring the Router for details on Internet Connection Type settings Make sure you use the right cable Check to see if the Internet LED is solidly lit Make sure the cable connecting from your cable or DSL modem is connected to the Router s Internet port Verify that the Status page of the Router s Web based Utility shows a valid IP address from your ISP Turn off the computer Router and cable DSL modem Wait 30 seconds and then turn on the Router cable DSL modem and computer Check the Status tab of the Router s Web based Utility to see if you get an IP address Iam not able to access the Router s Web based Utility Setup page A Refer to Problem 4 want to test my Internet connection to verify that your computer is properly connected to the Router Refer to
58. etwork is set to infrastructure mode the wireless network is configured to communicate with a wired network through a wireless access point What is roaming Roaming is the ability of a portable computer to communicate continuously while moving freely throughout an area greater than that covered by a single access point Before using the roaming function the user must make sure that the computer uses the same channel number that is used by the access point of the 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 76 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 the backbone As the user moves on the end node s RF transmitter r
59. g gt Port Range Forwarding tab B Enter any name you want to use for the Application C Enter the port range of the service you are using For example if you have a web server you would enter the range 80 to 80 D Select the protocol you will be using TCP or UDP or select Both E Enter the IP address of the PC 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 15 100 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 F Check the Enabled option for the port services you want to use Consider the examples below Application Start and End Protocol IP Address Enabled Web server 80 to 80 Both 192 168 15 100 X FTP server 21 to 21 TCP 192 168 15 101 X SMTP outgoing 25 to 25 Both 192 168 15 102 X POP3 incoming 110 to 110 Both 192 168 15 102 X When you have completed the configuration click the Save Settings button I 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 Router to deliver incoming packets or data to a specific computer This al
60. g on the speed of your wireless network You can select from a range of transmission speeds or you can select Auto to have the Router automatically use the fastest possible data rate and enable the Auto Fallback feature Auto Fallback will negotiate the best possible connection speed between the Router and a wireless client The default value is Auto Preamble Type The preamble defines the length of the CRC block for communication between the Router and the roaming Network Card High network traffic areas should use the shorter preamble type Select the appropriate preamble type Long Preamble default or Short Preamble Authentication Type The default is set to Auto which allows either Open System or Shared Key authentication to be used With Open System authentication the sender and the recipient do NOT use a WEP key for authentication With Shared Key authentication the sender and recipient use a WEP key for authentication cts clear to send a signal sent by a wireless device signifying that it is ready to receive data CTS Protection Mode CTS Clear To Send Protection Mode should remain disabled unless you are having severe problems with your Wireless G products If these products are not able to transmit to the Router in an 31 environment with heavy 802 11b traffic then enable CTS Protection Mode This function boosts the Router s ability to catch all Wireless G transmissions but will significantly decrease performance
61. ght hand side of a screen For additional help on a tab click More py 192168151 Ream Linksys WRTS4GP2 Wee Basme I Save this password in your password kst Cox oa Figure 5 2 Router Login 14 Wireless G Broadband Router with 2 Phone Ports The Setup Tab Basic Setup The Basic Setup screen is the first screen you see when you access the Web based Utility Internet Setup The Internet Setup section configures the Router for your Internet connection type This information can be obtained from your ISP Internet Connection Type The Router supports six connection types Obtain an IP automatically DHCP Static IP PPPoE RAS PPTP and Heart Beat Signal Each Basic Setup screen and available features will differ depending on what kind of connection type you select Obtain an IP automatically By default the Router s Internet Connection Type is set to Obtain an IP automatically and it should be used only if your ISP supports DHCP or you are connecting through a dynamic IP address a E Figure 5 3 Setup Tab Basic Setup Obtain an IP automatically Chapter 5 Configuring the Router 15 The Setup Tab Basic Setup 16 Static IP If you are required to use a permanent IP address then select Static IP IP Address This is the IP address that the Router has when seen from the Internet Your ISP will provide you with the IP Address you need to specify here Subnet Mask This is the Router s Subnet Mask as
62. gram Protocol A network protocol for transmitting data that does not require acknowledgement from the recipient of the data that is sent 95 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 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 96 Appendix F Specifications Model Standards Channels Transmit Power Ports Button Cabling Type LEDs Network Protocols WRT54GP2 IEEE 802 3 IEEE 802 3u 802 11b 802 119 11 Channels US Canada 18 dBm One 10 100 RJ 45 Internet Port Three 10 100 RJ 45 Network Ports Two Standard Phone Ports One Power Port One Reset Button RJ 45 Ethernet Category 5 RJ 11 Standard Phone Cable
63. hanges or click the Cancel Changes button to undo your changes Help information is shown on the right hand side of a screen For additional information click More 40 The Applications amp Gaming Tab DMZ 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 DMZ hosting forwards all the ports at the same time to one PC The Port Range Forwarding is more secure because it only opens the ports you want to have opened while DMZ hosting opens all the ports of one computer exposing the computer to the Internet Any PC whose port is being forwarded must have its DHCP client function disabled and should have a new static IP address assigned to it because its IP address may change when using the DHCP function DMZ Figure 5 28 Applications amp Gaming Tab DMZ DMZ To use this feature select Enable To disable DMZ hosting select Disable DMZ Host IP Address To expose one PC 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 Deactivate DMZ by entering a 0 in the field When you have finished making changes to this screen click the Save Settings button to save the changes or Click the Cancel Changes button to undo your changes Help information is shown on the right hand side of a screen For additional information click More
64. he Router will have difficulties routing information to the right location If you change the Router s IP address to 192 168 2 1 that should solve the problem Change the Router s IP address through the Basic Setup tab of the Web based Utility 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 9 need to set up online game hosting or use other Internet applications for details Check the Linksys website at www linksys com for more information I need to set up a server behind my Router 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 Router s Web based Utility We will be setting up web ftp and mail servers A Access the Router s Web based Utility by going to http 192 168 15 1 or the IP address of the Router Go to the Applications amp Gamin
65. hood or My Network Places depending upon the version of Windows you re running Windows Help provides complete instructions on adding PCs to your network 87 Wireless G Broadband Router with 2 Phone Ports 88 Appendix D Windows Help 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 802 119 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 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 differen
66. ick Network 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 In the 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 Router You can only use an IP address in the ranges 192 168 15 2 to 192 168 15 99 and 192 168 15 151 to 192 168 15 254 Make sure that each IP address is unique for each PC or network device Click the Gateway tab and in the New Gateway prompt enter 192 168 15 1 which is the default IP address of the Router Click the Add button to accept the entry Click the DNS tab and make sure the DNS Enabled option is selected Enter the Host and Domain names e g John 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 F Click the OK button in the TCP IP properties window and click Close or the OK button for the Network window G Restart the computer when asked For Windows 2000 A Click Start Settings and Control Panel Double click Network and Dial Up Connections B Right click the Local Area Connection tha
67. inistration Tab Factory Defaults The Factory Defaults screen is protected by a password available only from your Internet phone service provider Contact your provider for more information This screen is used to reset all the factory defaults If you just want to reset the factory defaults for the Router on the back of the Router press the Reset Button for five seconds Figure 5 35 Administration Tab Factory Defaults The Administration Tab Firmware Upgrade Upgrading the Router s firmware requires a password available only from your Internet phone service provider Contact your provider for more information Figure 5 36 Administration Tab Firmware Upgrade firmware the programming code that runs a networking device upgrade to replace existing software or firmware with a newer version 48 Configuring the Router b Factory Defaults The Status Tab Voice The Voice screen displays information about your Internet phone line s Information Voice Version This shows the version number of the voice firmware currently installed on the Router Line1 Status Registration Status The phone number and status of this Internet phone line are displayed here so you know Figure 5 37 Status Tab Voice whether or not the phone line is registered with your Internet phone service provider If it is not registered then you should register it with your provider If the status indicates that the registratio
68. ion keeps your Internet access connected indefinitely even when it sits idle If you select this option the Router will periodically check your Internet connection If the connection is down then the Router will automatically re establish the connection To use this option click the radio button next to Keep Alive The default Redial Period is 30 seconds When you are finished click the Save Settings button Then click the Status tab and click the Connect button to start the connection Heart Beat Signal Heart Beat Signal is a service used in Australia only If you are using a Heart Beat Signal connection check with your ISP for the necessary setup information User Name and Password Enter the User Name and Password provided by your ISP Heart Beat Server This is the IP address that the Router has when seen from the Internet Your ISP will provide you with the IP Address you need to specify here Connect on Demand and Max Idle Time You can configure the Router to cut the Internet connection after it has been inactive for a specific period of time Max Idle Time If your Internet connection has been terminated due to inactivity Connect on Demand enables the Router to automatically re establish your connection as soon as you attempt to access the Internet again If you wish to activate Connect on Demand Click the radio button If you want your Internet connection to remain on at all times enter 0 in the Max Idle Time field Otherwise
69. ion 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 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 both 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 93 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
70. is function Figure 5 32 Administration Tab Log Logviewer IP Address For a permanent record of these logs Logviewer software must be used This software is downloadable from the Linksys website www linksys com The Logviewer saves all incoming and outgoing activity in a permanent file on your PC s hard drive In the Logviewer IP Address field enter the fixed IP address of the PC running the Logviewer software The Router will now send updated logs to that PC Incoming Log Click the Incoming Log button to view a temporary log of the Source IP addresses and Destination Port Numbers for all the incoming Internet traffic Click the Refresh button to update the log Incoming Log tte samp Source IP Destination Port Number Outgoing Log Click the Outgoing Log button to view a temporary log of all the URLs and IP addresses of Figure 5 33 Incoming Log Internet sites that users on your network have accessed The LAN IP address Destination URL IP and Service Table Port Number for each site are listed Click the Refresh button to update the log of f A Cragin ng tai Ern When you have finished making changes to this screen click the Save Settings button to save the changes or ca arae des click the Cancel Changes button to undo your changes Help information is shown on the right hand side of a screen For additional information click More Figure 5 34 Outgoing Log Table 47 Wireless G Broadband Router with 2 Phone Ports The Adm
71. 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 91 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 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 IPCONFIG A Windows 2000 and XP utility that displays the IP address for a particular networking device
72. is sending or receiving data over that port Green The Phone LED is solidly lit when a telephone or fax machine has a registered connection to Internet phone service through the corresponding port Phone 1 or 2 The connection is registered if your Internet phone service account is active Otherwise the LED does not light up It flashes when the phone is being used or an incoming call has been detected Internet Green The Internet LED lights up when the Router is connected to your cable or DSL modem If the LED is flashing the Router is sending or receiving data over the Internet port Proceed to Chapter 4 Connecting the Router Wireless G Broadband Router with 2 Phone Ports 10 Chapter 3 Getting to Know the Router The Front Panel Wireless G Broadband Router with 2 Phone Ports Chapter 4 Connecting the Router Overview To begin installation of the Router you will connect the Router to your PCs telephone s or fax machine s and cable or DSL modem The following connection diagram illustrates a basic network setup wired connections to one desktop PC and telephone and a wireless connection to one notebook PC Desktop PC Cable DSL Internet Modem Notebook PC Router amp G Figure 4 1 Router Connection Diagram c Telephone 11 Connection Instructions 1 3 Before you begin make sure that all of your hardware is powered off including the Router PCs switches and cable or DSL modem
73. ly If you have only 802 11b devices select B Only If you do not have any 802 119 and 802 11b devices in your network select Disable Figure 5 14 Wireless Tab Basic Wireless Network Name SSID The SSID is the network name shared among all points in a wireless network Wireless Settings The SSID must be identical for all devices in the wireless network It is case sensitive and must not exceed 32 characters use any of the characters on the keyboard Make sure this setting is the same for all points in your wireless network For added security you should change the default SSID linksys to a unique name Wireless Channel Select the appropriate channel from the list provided to correspond with your network settings All devices in your wireless network must be broadcast on the same channel in order to function correctly Wireless SSID Broadcast When wireless clients survey the local area for wireless networks to associate with they will detect the SSID broadcast by the Router To broadcast the Router s SSID keep the default setting Enable If you do not want to broadcast the Router s SSID then select Disable When you have finished making changes on this screen click the Save Settings button to save the changes or click the Cancel Changes button to undo your changes Help information is shown on the right hand side of a screen For additional information click More 27 The Wireless Tab Wireless Security The Wireless Sec
74. ly designed for use with both your 802 11b and 802 11g products It is compatible with all 802 11b and 802 119 adapters such as the Notebook Adapters WPC54G WPC11 for your laptop computers PCI Adapter WMP54G WMP11 for your desktop PC and USB Adapter WUSB54G WUSB11 when you want to enjoy USB connectivity The Broadband Router will also communicate with the Wireless PrintServer WPS54GU2 WPS11 and Wireless Ethernet Bridges WET54G WET11 When you wish to connect your wireless network with your wired network you can use the Broadband Router s three LAN ports To add more ports any of the Broadband Router s LAN ports can be connected to any of Linksys s switches such as the EZXS55W or EZXS88W With these and many other Linksys products your networking options are limitless Go to the Linksys website at www linksys com for more information about products that work with the Wireless G Broadband Router with 2 Phone Ports 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 Chapter 3 Getting to Know the Router The Back Panel The Router s ports and the Reset button are located on the back panel of the Router 12 OC 1A Figure 3 1 Back Panel Internet This Internet port connects to your cable or DSL modem Phone1 For your primary Internet phone line the Phone port allows you to connect the Rou
75. n and negotiates the sending of a data frame After receiving an RTS the wireless station responds with a Clear to Send CTS frame to acknowledge the right to begin transmission The RTS Threshold value should remain at its default value of 2347 When you have finished making changes on this screen click the Save Settings button to save the changes or click the Cancel Changes button to undo your changes Help information is shown on the right hand side of a screen For additional information click More 32 beacon interval data transmitted on your wireless network that keeps the network synchronized dtim a message included in data packets that can increase wireless efficiency fragmentation breaking a packet into smaller units when transmitting over a network medium that cannot support the original size of the packet The Security Tab Filter When you click the Security tab you will see the Filter screen Filters block specific internal users from accessing the Internet and block anonymous Internet requests and or multicasting Filter IP Address Range You can create up to five different IP Address Range filters To set up a filter using IP addresses enter the range EE of IP addresses you wish to filter in the Start and End fields Users who have filtered IP addresses will not be S able to access the Internet at all If you only want to filter one IP address instead of a range of IP addresses enter the same value
76. n has failed then refer to Appendix A Troubleshooting Call1 Status The status of the active phone call is shown here Call2 Status If you are using call waiting the status of the incoming phone call is shown here Line2 Status Registration Status The phone number and status of this Internet phone line are displayed here so you know whether or not the phone line is registered with your Internet phone service provider If it is not registered then you should register it with your provider If the status indicates that the registration has failed then refer to Appendix A Troubleshooting Call1 Status The status of the active phone call is shown here Call2 Status If you are using call waiting the status of the incoming phone call is shown here shapter 5 Configuring the Router 49 Wireless G Broadband Router wi P Click the Refresh button to update the on screen information For help information click More The Status Tab Router The Router screen displays information about the Router and its current settings The on screen information will vary depending on the Internet Connection Type selected on the Setup screen Information Firmware Version This shows the installed version and date of the firmware Current Time The current time and date are displayed here MAC Address The MAC Address of the Router s Internet interface is displayed here When you sign up for your Figure 5 38 Status Tab Rou
77. nce in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used according to the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which is found by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna Increase the separation between the equipment or devices Connect the equipment to an outlet other than the receiver s Consult a dealer or an experienced radio TV technician for assistance FCC Radiation Exposure Statement This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment This equipment should be installed and operated with minimum distance 20cm between the radiator and your body 101 Industry Canada Canada This Class B digital apparatus complies with Canadian ICES 003 RSS210 Cet appareil num rique de la classe B est conforme a la norme NMB 003 du Canada The use of this device in a system operating either partially or completely outdoors may require the user to obtain a license for the system according to the Canadian regulations SAFETY NOTICES Caution To reduce the risk of fire use only No 26
78. nnection This will remove any dial up pop ups for PPPoE users moppe For Netscape 4 7 or higher A Start Netscape Navigator and click Edit Preferences Advanced and Proxies B Make sure you have Direct connection to the Internet selected on this screen C Close all the windows to finish To start over I need to set the Router to factory default Hold the Reset button for approximately five seconds and then release it This will return the password forwarding and other settings on the Router to the factory default settings In other words the Router will revert to its original factory configuration 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 There is a setup option to keep alive the connection This may not always work so you may need to re establish connection periodically A mmo p To connect to the Router go to the web browser and enter http 192 168 15 1 or the IP address of the Router Enter the password if asked The default password is admin On the Basic Setup tab 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 th
79. on click the Save Settings button I forgot my password or the password prompt always appears when saving settings to the Router Reset the Router to factory default by pressing the Reset button for 30 seconds and then releasing it If you are still getting prompted for a password when saving settings then perform the following steps A Access the Router s web interface by going to http 192 168 15 1 or the IP address of the Router Enter the default password admin and click the Administration gt Management tab B Enter a different password in the Router Password field and enter the same password in the second field to confirm the password C Click the Save Settings button 65 12 I am a PPPoE user and I need to remove the proxy settings or the dial up pop up window 13 14 66 If you have proxy settings you need to disable these on your computer Because the Router 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 co
80. on Windows operating systems Does the Router 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 Router 70 I set up an Unreal Tournament Server but others on the LAN cannot join What do I 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 to 27900 If you want to use the UT Server Admin forward another port 8080 usually works well but is used for remote admin You may have to disable this and then in the UWeb WebServer section of the server ini file set the ListenPort to 8080 to match the mapped port above and ServerName to the IP assigned to the Router 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 Router The default client port for Half Life is 27005 The computers on your LAN need to have clientport 27
81. ons The Router allows PPTP packets to pass through Is the Router cross platform compatible Any platform that supports Ethernet and TCP IP is compatible with the Router How many ports can be simultaneously forwarded Theoretically the Router can establish 520 sessions at the same time but you can only forward 10 ranges of ports Does the Router replace a modem Is there a cable or DSL modem in the Router No this version of the Router must work in conjunction with a cable or DSL modem Which modems are compatible with the Router The Router is compatible with virtually any cable or DSL modem that supports Ethernet What is the maximum number of VPN sessions allowed by the Router The maximum number depends on many factors At least one IPSec session will work through the Router however simultaneous IPSec sessions may be possible depending on the specifics of your VPNs How can I check whether I have static or DHCP IP addresses Ask your ISP to find out How do I get mIRC to work with the Router Under the Applications amp Gaming gt Port Range Forwarding tab set port forwarding to 113 for the PC on which you are using mIRC 74 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 11b standard
82. ops between the source and the destination Dynamic Routing is enabled by default To disable this feature click the Disable radio button Transmit RIP Version To use dynamic routing for transmission of network data select the protocol you want RIP1 RIP1 Compatible or RIP2 Receive RIP Version To use dynamic routing for reception of network data select the protocol you want RIP1 or RIP2 Static Routing Use this feature to set up a static router between the Router and another network 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 alter the following settings Select Entry Select the number of the static route from the drop down menu The Router supports up to 20 static route entries Figure 5 12 Setup Tab Advanced Routing 25 Enter Route Name Enter a name for the static route using a maximum of 25 alphanumeric characters Destination LAN IP The Destination LAN 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 Subnet Mask The Subnet Mask determines which portion of a Destination IP address is the network portion and which portion is the host portion Gateway This is the IP address of the gateway device that allows for contact between the Router and the remote network or host Hop Count This
83. outer and multiple access points to work in succession to extend the roaming range and you can set up your wireless network to communicate with your Ethernet hardware as well network a series of computers or devices connected for the purpose of data sharing storage and or transmission between users ssid your wireless network s name ad hoc a group of wireless devices communicating directly to each other peer to peer without the use of an access point infrastructure a wireless network that is bridged to a wired network via an access point adapter a device that adds network functionality to your PC ethernet EEE standard network protocol that specifies how data is placed on and retrieved from a common transmission medium If the wireless network is relatively small and needs to share resources only with the other computers on the wireless network then the Ad Hoc mode can be used Ad Hoc mode allows computers equipped with wireless transmitters and receivers to communicate directly with each other eliminating the need for a wireless router or access point The drawback of this mode is that in Ad Hoc mode wireless equipped computers are not able to communicate with computers on a wired network And of course communication between the wireless equipped computers is limited by the distance and interference directly between them Network Layout The Wireless G Broadband Router with 2 Phone Ports has been specifical
84. plorer 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 Frequently Asked Questions How do I make a phone call Pick up the phone and dial Use 7 10 or 11 digit dialing for calls within the same area code as your Internet phone number Use 10 or 11 digit dialing for calls outside of your area code Can I make calls if my Internet connection is down No Your high speed Internet connection must be active when you make Internet phone or fax calls Can I make calls while I m browsing the Internet Yes You can make Internet phone or fax calls while browsing the Internet However your web browsing may affect the quality of your telephone call depending on the amount of upstream data traffic passing through your Internet connection Can I receive calls while my network is down You cannot directly receive calls while your network is down However your Internet phone service provider can forward calls to a different telephone number such as a cellular phone number if you activate a feature called Network Availability Number You can configure this feature through your service account What is the maximum number of IP addresses that the Router will support The Router will support up to 253 IP addresses 69 Is IPSec Passthrough supported by the Router Yes enable or disable IPSec Passthrough on the S
85. pport the NNTP protocol SNMP Simple Network Management Protocol A widely used network monitoring and control protocol Data is passed from SNMP agents which are hardware and or software processes reporting activity in each network device hub router bridge etc to the workstation console used to oversee the network The agents return information contained in a MIB Management Information Base which is a data structure that defines what is obtainable from the device and what can be controlled turned off on etc Ext Port Enter the number of the external port used by the server in the Ext Port column Check with the Internet application documentation for more information TCP or UDP Select the protocol UDP or TCP for each application You cannot select both protocols Int Port Enter the number of the internal port used by the server in the nt Port column Check with the Internet application software documentation for more information IP Address Enter the IP address of the server that you want the Internet users to be able to access To find the IP address go to Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter Enabled Check the Enabled box to enable the service you have defined UPnP Forwarding will not function if the Enabled button is left unchecked This is disabled unchecked by default When you have finished making changes to this screen click the Save Settings button to save the c
86. r network devices e Verify your account information and confirm that the phone line is registered with your Internet phone service provider 2 I m trying to access the Router s Web based Utility but I 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 A Click File Make sure Work Offline is NOT checked 55 Press CTRL F5 This is a hard refresh which will force Windows Explorer to load new webpages 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 3 I need to set a static IP address on a PC The Router by default assigns an IP address range of 192 168 15 100 to 192 168 15 150 using the DHCP server on the Router To set a static IP address you can only use the ranges 192 168 15 2 to 192 168 15 99 and 192 168 15 151 to 192 168 15 254 Each PC or network device that uses TCP IP must have a unique address to identify itself in a network If the IP address is not unique to a network Windows will generate an IP conflict error message You can assign a static IP address to a PC by performing the following steps 56 For Windows 98 and Millennium A B Click Start Setting and Control Panel Double cl
87. re select Disable Ingress Rate Limit This setting limits the incoming bandwidth To use this feature select 8M 4M 2M 1M 512K 256K or 128K M stands for Mbps while K stands for kbps If you do not want to use this feature keep the default Disable 43 Voice QoS This setting allows you to limit the outgoing bandwidth for the application or port based QoS policies in use so you can control how much bandwidth a particular application is allowed to use Enable Disable To limit outgoing bandwidth for the QoS policies in use select Enable Otherwise select Disable QoS Upstream Rate If you want the Router to automatically detect the QoS upstream rate keep the default Auto Detect The rate will be automatically displayed If you want to manually set the maximum QoS upstream rate select Manual Then enter the maximum speed in kbps the default is 256 kbps When you have finished making changes to this screen click the Save Settings button to save the changes or click the Cancel Changes button to undo your changes Help information is shown on the right hand side of a screen For additional information click More 44 The Administration Tab Management When you click the Administration tab you will see the Management screen This screen allows you to change the Router s access settings as well as configure the UPnP Universal Plug and Play features Router Password Local Router Access To ensure the Router
88. ription like this Figure 0 1 Sample Figure Description Figure numbers and descriptions can also be found in the List of Figures section WRT54GP2 UG 41004B BW Table of Contents Chapter 1 Introduction Welcome What s in this Guide Chapter 2 Planning Your Wireless Network Network Topology Ad Hoc versus Infrastructure Mode Network Layout Chapter 3 Getting to Know the Router The Back Panel The Front Panel Chapter 4 Connecting the Router Overview Connection Instructions Chapter 5 Configuring the Router Overview How to Access the Web based Utility The Setup Tab Basic Setup The Setup Tab DDNS The Setup Tab MAC Address Clone The Setup Tab Advanced Routing The Wireless Tab Basic Wireless Settings The Wireless Tab Wireless Security The Wireless Tab Wireless Network Access The Wireless Tab Advanced Wireless Settings OoN NOONAN The Security Tab Filter The Security Tab VPN Passthrough The Voice Tab The Applications amp Gaming Tab Port Range Forwarding The Applications amp Gaming Tab Port Triggering The Applications amp Gaming Tab UPnP Forwarding The Applications amp Gaming Tab DMZ The Applications amp Gaming Tab QoS The Administration Tab Management The Administration Tab Log The Administration Tab Factory Defaults The Administration Tab Firmware Upgrade The Status Tab Voice The Status Tab Router The Status Tab Local Network The Status Tab Wireless
89. roduct 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 Your Internet phone service provider Technical Support in order to obtain a Return Authorization Number if applicable If You are requested to return the Product mark the Return Authorization Number clearly on the outside of the package You are responsible for shipping defective Products to Your Internet phone service provider 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 INFRINGEMENT 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 Your Internet phone service provider b has not been installed operated repaired or maintained in accordance with instructions supplied by Your Internet phone service provider 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
90. s Network Network Topology A wireless local area network WLAN is exactly like a regular local area network LAN except that each computer in the WLAN uses a wireless device to connect to the network Computers in a WLAN share the same frequency channel and SSID which is an identification name shared by the wireless devices belonging to the same wireless network Ad Hoc versus Infrastructure Mode Unlike wired networks wireless networks have two different modes in which they may be set up infrastructure and ad hoc An infrastructure configuration is a WLAN and wired LAN communicating to each other through an access point An ad hoc configuration is wireless equipped computers communicating directly with each other Choosing between these two modes depends on whether or not the wireless network needs to share data or peripherals with a wired network or not If the computers on the wireless network need to be accessible by a wired network or need to share a peripheral such as a printer with the wired network computers the wireless network should be set up in Infrastructure mode The basis of Infrastructure mode centers around an access point or wireless router such as the Wireless G Broadband Router with 2 Phone Ports which serves as the main point of communications in a wireless network The Router transmits data to PCs equipped with wireless network adapters which can roam within a certain radial range of the Router You can arrange the R
91. s assigned to a computer or device that is connected to a network Static Routing Forwarding data in a network via a fixed path STUN Simple Traversal of UDP through NATs A protocol that enables specialized applications such as Internet phone calls video and audio to travel between your local network and the Internet STUN is a specific type of NAT traversal 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 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 Data
92. s security you will be asked for your password when you access the Router s Web based Utility The default password is admin Router Password It is recommended that you change the default password to one of your choice Figure 5 30 Administration Tab Management Re enter to confirm Re enter the Router s new Password to confirm it Remote Router Access This feature allows you to access the Router from a remote location via the Internet NOTE When you are ina Remote Upgrade Remote Upgrade allows you to upgrade the Router s firmware from a remote location To A remote location and wish to enable this feature click the Enabled radio button Remote Administration must be activated before you can manage the Router enter access the Router from a remote location http lt Internet IP Address gt port Enter the Router s specific Remote Administration This feature allows you to manage the Router from a remote location via the Internet Internet IP address in place of To enabled Remote Administration click the Enabled radio button lt Internet IP Address gt and enter the Administration Port number Administration Port Enter the port number you will use to remotely access the Router in place of the word port Chapter 5 Configuring the Router 45 UPnP UPnP UPnP allows Windows XP to automatically configure the Router for various Internet applications such as gaming and videoconferencing Allow users to make configuration
93. so applies to the Internet applications you are using The best way 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 63 A Access the Router s Web based Utility by going to http 192 168 15 1 or the IP address of the Router Go to the Applications amp Gaming gt Port Range Forwarding tab B Enter any name you want to use for the Application C Enter the port range of the service you are using For example if you have a web server you would enter the range 80 to 80 D Select the protocol you will be using TCP or UDP or select Both E Enter the IP address of the PC 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 15 100 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 F Check the Enabled option for the port services you want to use Consider the examples below Application Start and End Protocol IP Address Enabled Halflife 27015 to 27015 Both 192 168 15 105 X PC Anywhere 5631 to 5631 UDP 192 168 15 102 X VPN IPSEC 500 to 500 UDP 192 168 15 100 X When you have completed the configuration click the Save Settings button 10 I can
94. ssee click the Cancel Changes button to undo your changes Help information is shown on the right hand side of a was screen For additional information click More Figure 5 17 Wireless Tab Wireless Security WEP 29 2 Phone Ports The Wireless Tab Wireless Network Access Wireless access can be filtered by using the MAC addresses of the wireless devices transmitting within your network s radius MAC Filter To filter wireless access by MAC Address click Enable If you do not wish to filter access by MAC a Address select Disable ma RRERRE meu SERRE ofan c f mcp ca S Deny Clicking this button will block wireless access by MAC Address a R anc om fon 00 00 08 0008 mc ve pao Allow Clicking this button will permit wireless access by MAC Address Lipssess men pEENEN Hamen honnonotei onnan O Select MAC Address from Networked Computers Clicking this button will open the Wireless Client MAC List On this screen you can view users by MAC Address to whom you wish to provide or block access To Se enable MAC filtering for a specific computer click the Enable MAC Filter checkbox When you have finished your Figure 5 18 Wireless Tab Wireless changes click the Save button Click the Cancel button to cancel your changes To update the information on Network Access the Wireless Client MAC List click the Refresh button When you have finished making changes on this screen click the Save Settings button
95. t get the Internet game server or application to work If you are having difficulties getting any Internet game server or application to function properly consider exposing one PC to the Internet using DeMilitarized Zone DMZ hosting This option is available when an 64 11 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 Router will be checked first by the forwarding settings If the port number that the data enters from does not have port forwarding then the Router will send the data to whichever PC or network device you set for DMZ hosting Follow these steps to set DMZ hosting A Access the Router s Web based Utility by going to http 192 168 15 1 or the IP address of the Router Go to the Applications amp Gaming gt Port Range Forwarding tab B Disable or remove the entries you have entered for forwarding Keep this information in case you want to use it at a later time C Click the DMZ tab D Enter the Ethernet adapter s IP address of the computer you want exposed to the Internet This will bypass the NAT security for that computer Please refer to Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter for details on getting an IP address Once completed with the configurati
96. t is associated with the Ethernet adapter you are using and select the Properties option C Inthe 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 D Enter a unique IP address that is not used by any other computer on the network connected to the Router You can only use an IP address in the ranges 192 168 15 2 to 192 168 15 99 and 192 168 15 151 to 192 168 15 254 E Enter the Subnet Mask 255 255 255 0 F Enter the Default Gateway 192 168 15 1 Router s default IP address G 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 H Click the OK button in the Internet Protocol TCP IP Properties window and click the OK button in the Local Area Connection Properties window I Restart the computer if asked For 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 57 PWS Dom Click Start and Control Panel Click the Network and Internet Connections icon and then the Network Connections icon Right click the Local Area Connection that is asso
97. t networks Broadband An always on fast Internet connection 89 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 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 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 perman
98. ter Internet phone service account you will need to provide the MAC address of the Router Status Login Type This indicates the type of Internet connection you are using Login Status The status is displayed only for dial up style connections PPPoE RAS PPTP and Heart Beat Signal There is a Connect button to click if there is no Internet connection and you want to re connect Internet IP Address The Router s Internet IP Address is displayed here Subnet Mask and Default Gateway The Router s Subnet Mask and Default Gateway address are displayed here for DHCP and static IP connections DNS 1 3 Shown here are the DNS Domain Name System IP addresses currently used by the Router 50 Chanter 5 Confi DHCP Release Available for a DHCP connection click the DHCP Release button to release the current IP address of the device connected to the Router s Internet port DHCP Renew Available for a DHCP connection click the DHCP Renew button to replace the current IP address of the device connected to the Router s Internet port with a new IP address Click the Refresh button to update the on screen information For help information click More The Status Tab Local Network The Local Network screen displays information about the local network Local Network MAC Address The MAC Address of the Router s LAN local area network interface is displayed here IP Address The Router s local IP Address is shown her
99. ter to your telephone or fax machine using an RJ 11 telephone cable not included NOTE The Factory Default Phone2 If you have a second Internet phone line the Phone2 port allows you to connect the A feature of the Router s Web Router to your second telephone or fax machine using an RJ 11 telephone cable not based Utility is protected by a included password available only from Internet phone service provider Ethernet 1 3 These three Ethernet ports connect to network devices such as PCs or more switches Contact your provider for more Reset Button There are two ways to reset the Router s factory defaults Either press the Reset Button for irmano five seconds or restore the defaults from the Router s Web based Utility Power The Power port is where you will connect the power adapter The Front Panel Power WLAN Ethernet 1 3 Phone 1 2 are located on the front panel Figure 3 2 Front Panel Green The Power LED lights up when the Router is powered on If the LED is flashing the Router is booting up running a system self test or upgrading its firmware Green The WLAN LED lights up when there is an active wireless connection If the LED is flashing the Router is sending or receiving data over the wireless network Green The Ethernet LED serves two purposes If the LED is solidly lit the Router is connected to a device through the corresponding port Ethernet 1 2 or 3 If the LED is flashing the Router
100. the Adapter Address as shown on your computer screen This is the MAC address for your Ethernet adapter and is shown as a series of numbers and letters The MAC address Adapter Address is what you will use for MAC address cloning or MAC filtering The example shows the Ethernet adapter s IP address as 192 168 1 100 Your computer may show something different r Ethernet Adapter Information Linksys LNE 100TX Fast Etheme _ eats JTX Fast Ethernet Ad IP Address 192168145 Subnet Mask 255 255 255 0 Defauk Gateway 192 168 1 254 _Peease _ Renew Release Al Renew Al More info gt gt Figure C 1 IP Configuration Screen EA IP Configuration E xi r Ethernet Adapter Information Linksys LNET00TX Fast Etheme gt Adapter Address lt 00 00 00 00 00 00 gt IP Address 192168 1 100 Subnet Mask 255 255 255 0 Defauk Gateway 192 168 1 1 Ge Release Renew Release All Renew Al More Info gt gt Figure C 2 MAC Adapter Address 85 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 2 Atthe command prompt enter ipconfig all Then press the Enter key 3 Write down the Physical Address as shown on your computer screen 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 address
101. tical 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 How do I reset the Router Press the Reset button on the back panel for about five seconds This will reset the Router to its default settings 78 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 Router and a wireless PC will create signal loss Lead glass metal concrete floors water and walls will inhibit the signal and reduce range Start with the Router and your wireless PC 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 I have excellent signal strength but cannot see my network Wireless security is probably enabled on the Router but not on your wireless adapter or vice versa Verify that the same wireless security settings are being used by all devices in your wireless network How many channels frequencies are available with the Router There are eleven available channels ranging from 1 to 11 in North America 79 Wireless G Broadband Router with 2 Phone Ports 80 Appendix A Troubleshooting Frequently Asked Questions Appendix B
102. to save the changes or Slenwacess zea click the Cancel Changes button to undo your changes Help information is shown on the right hand side of a arene BAAT 1 Weedless 2 cate acto screen For additional information click More TERACAW2R1 19216815103 0009 70 72 2AAE ee Figure 5 19 Wireless Client MAC List 30 The Wireless Tab Advanced Wireless Settings This tab is used to set up the Router s advanced wireless functions These settings should only be adjusted by an expert administrator as incorrect settings can reduce wireless performance Basic Rate The Basic Rate setting is not actually one rate of transmission but a series of rates at which the Router can transmit The Router will advertise its Basic Rate to the other wireless devices in your network so they know which rates will be used The Router will also advertise that it will automatically select the best rate for transmission The default setting is Default when the Router can transmit at all standard wireless rates 1 2Mbps 5 5Mbps 11Mbps 18Mbps and 24Mbps Other options are 1 2Mbps for use with older wireless technology and All when the Router can transmit at all wireless rates The Basic Rate is not the actual rate of data transmission If you want to specify the Router s rate of data transmission configure the Transmission Rate setting Figure 5 20 Advanced Wireless Settings Control Tx Rate The rate of data transmission should be set dependin
103. tworks from unauthorized and unwelcome users So networks not only 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 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 nat network address translation NAT technology translated IP addresses of a local area network to a different IP address for the Internet mbps one million bits per second a unit of measurement for data transmission browser an application program that provides a way to look at and interact with all the information on the World Wide Web Ian local area network the computers and networking products that make up the network in your home or office ethernet an IEEE standard network protocol that specifies how data is placed on and retrieved from a common transmission medium PCs equipped with wireless cards or adapters can communicate without cumbersome cables By sharing the 802 11b an IEEE wireless networking same wireless settings within their transmission radius they form a wireless network which is sometimes standard that specifies a maximum data called a Wireless Local Area Network WLAN The Router bridges wireless networks of both 802 11b and transfer rate of 11Mbps and an oper
104. unction in a Macintosh environment Yes but the Router s setup pages are accessible only through Internet Explorer 5 0 or Netscape Navigator 5 0 or higher for Macintosh I am not able to get the web configuration screen for the Router What can I do You may have to remove the proxy settings on your Internet browser e g Netscape Navigator or Internet Explorer Or remove the dial up settings on your browser Check with your browser documentation and make sure that your browser is set to connect directly and that any dial up is disabled 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 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 Router No 73 Does the Router pass PPTP packets or actively route PPTP sessi
105. ur changes Help information is shown on the right hand side of a screen For additional information click More The Applications amp Gaming Tab UPnP Forwarding The UPnP Forwarding screen displays preset application settings as well as options to customize port services for other applications UPnP Forwarding Application Ten applications are preset For custom applications enter the name of your application in one of the available fields The preset applications are among the most widely used Internet applications They include the following 38 Aen ara CP et ne ec F r m ec PT P r e s ec RT an r ss s ce W F r e cew F r e Po r so ec W r m om ec r m ec W K r ce RT F r ESE ee E5 P r SS ee E La a eA ee A F r LA F r CSE e Ee E r Figure 5 27 Applications amp Gaming Tab UPnP Forwarding 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 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 defines the message format and the message
106. urity settings configure the security of your wireless network There are three wireless security mode options supported by the Router WPA Pre Shared Key WPA RADIUS and WEP WPA stands for Wi Fi Protected Access which is a security standard stronger than WEP encryption WEP stands for Wired Equivalent Privacy while RADIUS stands for Remote Authentication Dial In User Service These three are briefly discussed here For detailed instructions on configuring wireless security for the Router proceed to Appendix B Wireless Security WPA Pre Shared Key WPA gives you one encryption method TKIP with dynamic encryption keys Select TKIP from the WPA Algorithm drop down menu Enter a WPA Shared Key of 8 32 characters Then enter the Group Key Renewal period which instructs the Router how often it should change the encryption keys When you have finished making changes on this screen click the Save Settings button to save the changes or click the Cancel Changes button to undo your changes Help information is shown on the right hand side of a screen For additional information click More 28 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 wep wired equivalent privacy a method of encrypting network data transmitted on a wireless network for greater security Figure 5 15 Wireless Tab Wireless Security
107. works 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 defines the message format and the message transfer agent MTA which stores and forwards the mail 42 Chapter 5 Configuring the Router The Applications amp Gaming Tab QoS 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 Port based QoS Port based QoS allows you to prioritize performance for three of the Router s ports LAN Ports 1 3 Port based QoS does not require support from your ISP because the prioritized ports are LAN ports going out to your network Enable Disable To use port based QoS select Enable Otherwise keep the default Disable For each port specify the Priority Flow Control setting and Ingress Rate Limit Priority Select the port s priority level High or Low Flow Control If you want the Router to control the transmission of data between network devices select Enable To disable this featu

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