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Linksys WRT54GP2 Installation And Troubleshooting Manual
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Linksys WRT54GP2 Installation And Troubleshooting Manual

2.4ghz wireless-g broadband router with 2 phone ports
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®
A Division of Cisco Systems, Inc.
2.4
GHz
Wireless-G
802.11g
Broadband Router with 2 Phone Ports
VoIP
VoIP
Installation and Troubleshooting Guide
WRT54GP2
Model No.

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  • Page 1 ® A Division of Cisco Systems, Inc. Wireless-G 802.11g Broadband Router with 2 Phone Ports VoIP VoIP Installation and Troubleshooting Guide WRT54GP2 Model No.
  • Page 2 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.

  • Page 3: Table Of Contents

    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...
  • Page 4 Wireless-G Broadband Router with 2 Phone Ports 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 I: Contact Information...
  • Page 5 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)
  • Page 6 Wireless-G Broadband Router with 2 Phone Ports 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...

  • Page 7: Chapter 1: Introduction

    Chapter 1: Introduction Welcome Thank you for choosing the Linksys Wireless-G 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.

  • Page 8: What's In This Guide

    802.11g standards and wired networks, allowing them to communicate with each other. To create your network, install and set up the Router. To guide you through the process, Linksys strongly recommends that you run the Setup Wizard on the Setup CD-ROM. If you prefer to manually set up the Router, use the instructions in the Quick Installation or this Installation and Troubleshooting Guide to help you.
  • Page 9 You also have other chapters available for reference: • 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.
  • Page 10 • Appendix H: Regulatory Information This appendix supplies the regulatory information regarding the Router. • Appendix I: Contact Information This appendix provides contact information for a variety of Linksys resources, including Technical Support. Chapter 1: Introduction What’s in this Guide?

  • Page 11: Chapter 2: Planning Your Wireless Network

    Chapter 2: Planning Your Wireless 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.

  • Page 12: Network Layout

    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.

  • Page 13: Chapter 3: Getting To Know The Router

    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. Figure 3-1: Back Panel Internet This Internet port connects to your cable or DSL modem. Phone1 For your primary Internet phone line, the Phone1 port allows you to connect the Router to your telephone (or fax machine) using an RJ-11 telephone cable (not included).

  • Page 14: The Front Panel

    Wireless-G Broadband Router with 2 Phone Ports Power The Power port is where you will connect the power adapter. The Front Panel The Router’s LEDs, which inform you about network activities, are located on the front panel. Figure 3-2: Front Panel Power Green.
  • Page 15 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.” Chapter 3: Getting to Know the Router The Front Panel Wireless-G Broadband Router with 2 Phone Ports...
  • Page 16 Wireless-G Broadband Router with 2 Phone Ports Chapter 3: Getting to Know the Router The Front Panel...

  • Page 17: Chapter 4: Connecting The Router

    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.

  • Page 18: Connection Instructions

    Wireless-G Broadband Router with 2 Phone Ports Connection Instructions 1. Before you begin, make sure that all of your hardware is powered off, including the Router, PCs, switches, and cable or DSL modem. 2. 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.

  • Page 19: Chapter 5: Configuring The Router

    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.
  • Page 20 Wireless-G Broadband Router with 2 Phone Ports Setup • Basic Setup. Enter the Internet connection and network settings on this screen. • DDNS. Enable the Router’s Dynamic Domain Name System (DDNS) feature on this screen. • MAC Address Clone. If you need to clone a MAC address onto the Router, use this screen. •...
  • Page 21 Voice Access to the Voice tab is restricted by your Internet phone service provider. Contact your provider for more information. Applications & Gaming • Port Range Forwarding. Set up public services or other specialized Internet applications on your network. • Port Triggering.

  • Page 22: How To Access The Web-Based Utility

    Wireless-G Broadband Router with 2 Phone Ports Status • Voice. This screen provides status information about your Internet phone lines. • Router. This screen provides status information about the Router. • 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 Router’s default IP address, 192.168.15.1, in the Address field.

  • Page 23: The Setup Tab - Basic Setup

    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.

  • Page 24: Figure 5-4: Static Ip

    Wireless-G Broadband Router with 2 Phone Ports 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.

  • Page 25: Figure 5-5: Pppoe

    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.

  • Page 26: Figure 5-7: Pptp

    Wireless-G Broadband Router with 2 Phone Ports 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.

  • Page 27: Figure 5-8: Heart Beat Signal

    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.

  • Page 28: Network Setup

    Wireless-G Broadband Router with 2 Phone Ports 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.
  • Page 29 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.

  • Page 30: The Setup Tab - Ddns

    Wireless-G Broadband Router with 2 Phone Ports 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.

  • Page 31: Figure 5-9: Setup Tab - Ddns (Dyndns.org)

    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 TZO.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.

  • Page 32: The Setup Tab - Mac Address Clone

    Wireless-G Broadband Router with 2 Phone Ports The Setup Tab - MAC Address Clone A MAC 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 registered with your ISP to the Router with the MAC Address Clone feature.

  • Page 33: The Setup Tab - Advanced Routing

    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.

  • Page 34: Figure 5-13: Routing Table Entry List

    Wireless-G Broadband Router with 2 Phone Ports 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.

  • Page 35: The Wireless Tab - Basic Wireless Settings

    (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.

  • Page 36: The Wireless Tab - Wireless Security

    Wireless-G Broadband Router with 2 Phone Ports The Wireless Tab - Wireless Security The Wireless Security 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.

  • Page 37: Figure 5-16: Wireless Tab - Wireless Security

    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.

  • Page 38: The Wireless Tab - Wireless Network Access

    Wireless-G Broadband Router with 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 Address, select Disable.

  • Page 39: The Wireless Tab - Advanced Wireless Settings

    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.
  • Page 40 Wireless-G Broadband Router with 2 Phone Ports 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. 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.

  • Page 41: The Security Tab - Filter

    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 of IP addresses you wish to filter in the Start and End fields.

  • Page 42: Figure 5-22: Filtered Mac Address

    Wireless-G Broadband Router with 2 Phone Ports 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.

  • Page 43: The Security Tab - Vpn Passthrough

    The Security Tab - VPN Passthrough The VPN 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.

  • Page 44: The Voice Tab

    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. The Applications & Gaming Tab - Port Range Forwarding Figure 5-24: Voice Tab When you click the Applications &...

  • Page 45: The Applications & Gaming Tab - Port Triggering

    Protocol. Select the protocol TCP or UDP, or select Both. 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.” Enable.

  • Page 46: The Applications & Gaming Tab - Upnp Forwarding

    Wireless-G Broadband Router with 2 Phone Ports 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.
  • Page 47 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.
  • Page 48 Wireless-G Broadband Router with 2 Phone Ports NNTP (Network News Transfer Protocol). The protocol used to connect to Usenet groups on the Internet. Usenet newsreaders support 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.

  • Page 49: The Applications & Gaming Tab - Dmz

    The Applications & 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.

  • Page 50: The Applications & Gaming Tab - Qos

    Wireless-G Broadband Router with 2 Phone Ports The Applications & 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 Application-based QoS manages information as it is transmitted and received.
  • Page 51 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.
  • Page 52 Wireless-G Broadband Router with 2 Phone Ports 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.

  • Page 53: The Administration Tab - Management

    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’s security, you will be asked for your password when you access the Router’s Web-based Utility.

  • Page 54: Figure 5-31: Back Up & Restore Configuration

    Wireless-G Broadband Router with 2 Phone Ports 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 changes. When enabled, this feature allows you to make manual changes while still using the UPnP feature.

  • Page 55: The 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.

  • Page 56: The Administration Tab - Factory Defaults

    Wireless-G Broadband Router with 2 Phone Ports The Administration 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.

  • Page 57: The Status Tab - Voice

    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 whether or not the phone line is registered with your Internet phone service provider.

  • Page 58: The Status Tab - Router

    Wireless-G Broadband Router with 2 Phone Ports 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.

  • Page 59: The Status Tab - Local Network

    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.

  • Page 60: The Status Tab - Wireless

    Wireless-G Broadband Router with 2 Phone Ports The Status Tab - Wireless The Wireless screen displays status information about your wireless network. 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 Figure 5-41: Status Tab - Wireless by the network.

  • Page 61: 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.
  • Page 62 Wireless-G Broadband Router with 2 Phone Ports B. Press CTRL + F5. This is a hard refresh, which will force Windows Explorer to load new webpages, not cached ones. C. Click Tools. Click Internet Options. Click the Security tab. Click the Default level button. Make sure the security level is Medium or lower.
  • Page 63 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.
  • Page 64 Wireless-G Broadband Router with 2 Phone Ports A. Click Start and Control Panel. B. Click the Network and Internet Connections icon and then the Network Connections icon. C. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using, and select the Properties option.
  • Page 65 3. In the Components checked are used by this connection 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. 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.
  • Page 66 If you do NOT get a reply, try the ping command from a different computer to verify that your original computer is not the cause of the problem. E. In the command prompt, type ping www.linksys.com and press the Enter key. •...
  • Page 67 C. 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. D.
  • Page 68 Refer to “Problem #9, I 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. 8. I need to set up a server behind my Router.
  • Page 69 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.
  • Page 70 Wireless-G Broadband Router with 2 Phone Ports 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 & Gaming => Port Range Forwarding tab. B. Enter any name you want to use for the Application. C.
  • Page 71 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.
  • Page 72 Wireless-G Broadband Router with 2 Phone Ports 12. I am a PPPoE user, and I need to remove the proxy settings or the dial-up pop-up window. If you have proxy settings, you need to disable these on your computer. Because the Router is the gateway for the Internet connection, the computer does not need any proxy settings to gain access.
  • Page 73 periodically. 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. B. Enter the password, if asked. (The default password is admin.) C. On the Basic Setup tab, select the option Keep Alive, and set the Redial Period option at 20 (seconds). D.
  • Page 74 Wireless-G Broadband Router with 2 Phone Ports 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.

  • Page 75: Frequently Asked Questions

    • 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.
  • Page 76 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 non-Windows operating systems.
  • Page 77 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.
  • Page 78 Wireless-G Broadband Router with 2 Phone Ports Advanced Properties tab.) Make sure that your proxy setting is disabled in the browser. Check our website at www.linksys.com for more information. Appendix A: Troubleshooting Frequently Asked Questions...
  • Page 79 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”...
  • Page 80 Wireless-G Broadband Router with 2 Phone Ports Does the Router pass PPTP packets or actively route PPTP sessions? 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.
  • Page 81 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? It is one of the IEEE standards for wireless networks.
  • Page 82 Wireless-G Broadband Router with 2 Phone Ports What IEEE 802.11g features are supported? The product supports the following IEEE 802.11g functions: • CSMA/CA plus Acknowledge protocol • OFDM protocol • Multi-Channel Roaming • Automatic Rate Selection • RTS/CTS feature • Fragmentation •...
  • Page 83 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.
  • Page 84 Wireless-G Broadband Router with 2 Phone Ports 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.
  • Page 85 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.
  • Page 86 Wireless-G Broadband Router with 2 Phone Ports Appendix A: Troubleshooting Frequently Asked Questions...

  • Page 87: Appendix B: Wireless Security

    Appendix B: Wireless Security Linksys wants to make wireless networking as safe and easy for you as possible. The current generation of Linksys products provide several network security features, but they require specific action on your part for implementation. So, keep the following in mind whenever you are setting up or using your wireless network.

  • Page 88: Security Threats Facing Wireless Networks

    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.
  • Page 89 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.
  • Page 90 These security recommendations should help keep your mind at ease while you are enjoying the most flexible and convenient technology Linksys has to offer. Appendix B: Wireless Security Security Threats Facing Wireless Networks...

  • Page 91: Appendix C: Finding The Mac Address And Ip Address For Your Ethernet Adapter

    Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter This section describes how to find the MAC address for your computer’s Ethernet adapter so you can use the MAC filtering and/or MAC address cloning feature of the Router. You can also find the IP address of your computer’s Ethernet adapter.

  • Page 92: Windows 2000 Or Xp Instructions

    Wireless-G Broadband Router with 2 Phone Ports 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. At the command prompt, enter ipconfig /all. Then press the Enter key. 3.

  • Page 93: Appendix D: Windows Help

    Wireless-G Broadband Router with 2 Phone Ports 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.
  • Page 94 Wireless-G Broadband Router with 2 Phone Ports Appendix D: Windows Help...

  • Page 95: Appendix E: Glossary

    Wireless-G Broadband Router with 2 Phone Ports Appendix E: Glossary 802.11b - A wireless networking standard that specifies a maximum data transfer rate of 11Mbps and an operating frequency of 2.4GHz. 802.11g - A wireless networking standard that specifies a maximum data transfer rate of 54Mbps, an operating frequency of 2.4GHz, and backward compatibility with 802.11b devices.
  • Page 96 Wireless-G Broadband Router with 2 Phone Ports 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.
  • Page 97 Wireless-G Broadband Router with 2 Phone Ports 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.
  • Page 98 Wireless-G Broadband Router with 2 Phone Ports 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.
  • Page 99 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.
  • Page 100 Wireless-G Broadband Router with 2 Phone Ports 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.
  • Page 101 Wireless-G Broadband Router with 2 Phone Ports SSID (Service Set IDentifier) - Your wireless network's name. Static IP Address - A fixed address assigned to a computer or device that is connected to a network. Static Routing - Forwarding data in a network via a fixed path. 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.
  • Page 102 Wireless-G Broadband Router with 2 Phone Ports 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.

  • Page 103: Appendix F: Specifications

    Appendix F: Specifications Model WRT54GP2 Standards IEEE 802.3, IEEE 802.3u, 802.11b, 802.11g Channels 11 Channels (US, Canada) Transmit Power 18 dBm Ports One 10/100 RJ-45 Internet Port, Three 10/100 RJ-45 Network Ports, Two Standard Phone Ports, One Power Port Button...
  • Page 104 Wireless-G Broadband Router with 2 Phone Ports Dimensions 7.32" x 1.89" x 7.87" (W x H x D) (186 mm x 48 mm x 200 mm) Unit Weight 13.30 oz. (0.38 kg) Power External, 12V DC, 1.0A Certifications FCC, CE, cUL Operating Temp.

  • Page 105: 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 Product or refund Your purchase price less any rebates.
  • Page 106 Wireless-G Broadband Router with 2 Phone Ports Appendix G: Warranty Information...

  • Page 107: Appendix H: Regulatory 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 interference 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.
  • Page 108 Wireless-G Broadband Router with 2 Phone Ports Industry Canada (Canada) This Class B digital apparatus complies with Canadian ICES-003, RSS210. Cet appareil numérique de la classe B est conforme à 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.

  • Page 109: Appendix I: Contact Information

    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,...
  • Page 110 Wireless-G Broadband Router with 2 Phone Ports Appendix I: Contact Information...
  • Page 112 www.linksys.com...

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