Your Internet Telephone Company
offering you more - connecting you for less
A Division of Cisco Systems, Inc.

2.4 GHz Wireless-G

802.11g

WIRELESS

User Guide

Model No. WRT54GP2

Wireless-G Broadband Router with 2 Phone Ports

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.
How to Use This User Guide
This User Guide has been designed to make understanding networking with the Wireless-G Broadband Router easier than ever. Look for the following items when reading this User Guide: This checkmark means there is a note of interest and is something you should pay special attention to while using the Wireless-G Broadband Router. This exclamation point means there is a caution or warning and is something that could damage your property or the Wireless-G Broadband Router. This question mark provides you with a reminder about something you might need to do while using the Wireless-G Broadband 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 description, like this: Figure 0-1: Sample Figure Description Figure numbers and descriptions can also be found in the List of Figures section in the Table of Contents.

WRT54GP2-UG-40520NC JL

Table of Contents
Chapter 1: Introduction Chapter 2: Planning Your Wireless Network
Network Topology Ad-Hoc versus Infrastructure Mode Network Layout Welcome Whats in this Guide?
Chapter 3: Getting to Know the Wireless-G Broadband Router with 2 Phone Ports Chapter 4: Connecting the Wireless-G Broadband Router with 2 Phone Ports
Overview Connection Instructions The Back Panel The Front Panel
Chapter 5: Configuring the Wireless-G Broadband Router with 2 Phone Ports 10
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 The Security Tab - Filter The Security Tab - VPN Passthrough The Voice Tab - Systems The Voice Tab - Line1 Settings The Voice Tab - Line2 Settings The Applications & Gaming Tab - Port Range Forwarding The Applications & Gaming Tab - Port Triggering 38
Appendix A: Troubleshooting
The Applications & Gaming Tab - UPnP Forwarding The Applications & Gaming Tab - DMZ 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
Appendix B: Wireless Security
Common Problems and Solutions Frequently Asked Questions

Chapter4:ConnectingtheWireless-GBroadbandRouterwith 2 Phone Ports

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 diagram illustrates a basic network setup with wired connections to one desktop PC and telephone and a wireless connection to one notebook PC. Desktop PC

Cable/DSL Modem

Notebook PC

Router

Telephone
Figure 4-1: Router Connection Diagram
Chapter 4: Connecting the Wireless-G Broadband Router with 2 Phone Ports Overview

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. Repeat this step to connect more PCs or other network devices to the Router. 3. If necessary, disconnect the RJ-11 telephone cable of your telephone from the telephone wall jack. Then connect that end to the Routers Phone1 port. NOTE: Make sure your telephone is set to its tone setting (not pulse). Figure 4-2: Connect a PC
4. If you have a second babyTEL phone line, repeat step 3 to connect a telephone or fax machine to the Routers Phone2 port. 5. Connect your cable or DSL modems Ethernet cable to the Routers Internet port. 6. Power on the cable or DSL modem. 7. Connect the included power adapter to the Routers Power port, and then plug the power adapter into an electrical outlet. The Power LED on the front panel will light up as soon as the power adapter is connected properly. 8. Power on your PC(s). Proceed to Chapter 5: Configuring the Router.
Figure 4-3: Connect a Telephone
Figure 4-4: Connect the Cable/DSL Modem
Figure 4-5: Connect the Power
Chapter 4: Connecting the Wireless-G Broadband Router with 2 Phone Ports Connection Instructions
Chapter5:ConfiguringtheWireless-GBroadbandRouterwith 2 Phone Ports
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 Routers advanced settings through the Web-based Utility. This chapter will describe each web page on the Utility and each pages 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: Basic Setup. On the Basic Setup screen, enter the settings provided by your ISP. Management. Click the Administration tab and then the Management tab. The Routers default password is admin. To secure the Router, change the Password from its default. 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 & Gaming, Administration, and Status. Additional tabs will be available after you click one of the main tabs.

To access the Web-based Utility of the Router, launch Internet Explorer or Netscape Navigator, and enter the Routers default IP address, 192.168.1.1, in the Address field. Press the Enter key. A screen will appear asking you for your User Name and Password. Leave the User Name field blank, and enter admin in the Password field. Then click the OK button. 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 information is shown on the right-hand side of a screen. For additional information, click More. Figure 5-2: Router Login
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 Routers 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.
Chapter 5: Configuring the Wireless-G Broadband Router with 2 Phone Ports How to Access the Web-based Utility
Figure 5-3: Setup Tab - Basic Setup (Obtain an IP automatically) 12

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 Routers 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. DNS 1-3. Your ISP will provide you with at least one DNS (Domain Name System) Server IP Address.
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 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 PPPoE-enabled 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. Note: For DSL users, if you need to enable PPPoE support, remember to remove any PPPoE applications that are installed on your PCs.

dynamic ip address: a temporary IP address assigned by a DHCP server

Time Setting

Select the time zone in which your network functions from this pull-down menu. 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. 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.
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
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. Enter the User Name, Password, and Host Name of the account you set up with DynDNS.org. Internet IP Address. The Routers current Internet IP Address is displayed here. Because it is dynamic, it will change. Status. The status of the DDNS service connection is displayed here. Figure 5-9: Setup Tab - DDNS (DynDNS.org)

TZO.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 Routers 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 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.
Figure 5-10: Setup Tab - DDNS (TZO.com)
Chapter 5: Configuring the Wireless-G Broadband Router with 2 Phone Ports The Setup Tab - DDNS
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.

MAC Clone

MAC Clone Service. To use MAC address cloning, select Enable. MAC Address. Enter the MAC Address registered with your ISP. Then click the Save Settings button. Clone. If you want to clone the MAC address of the PC you are currently using to configure the Router, then click the Clone button. The Router will automatically detect your PCs MAC address, so you do NOT have to call your ISP to change the registered MAC address to the Routers MAC address. It is recommended that the PC registered with the ISP is used to open the MAC Address Clone screen. 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. Figure 5-11: Setup Tab - MAC Clone
mac address: the unique address that a manufacturer assigns to each networking device.
Chapter 5: Configuring the Wireless-G Broadband Router with 2 Phone Ports The Setup Tab - MAC Address Clone
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 networks layout and exchange routing tables with the other router(s). The Router determines the network packets route based on the fewest number of hops between the source and the destination. 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. 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 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.

Chapter 5: Configuring the Wireless-G Broadband Router with 2 Phone Ports The Wireless Tab - Advanced Wireless Settings
Figure 5-20: Wireless Tab - Advanced Wireless Settings
cts (clear to send): a signal sent by a wireless device, signifying that it is ready to receive data
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 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 station 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.
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 of IP addresses you wish to filter in the Start and End fields. Users who have filtered IP addresses will not be 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 into both fields. For instance, if you wish to filter the PC with the IP address of 192.168.1.5, enter 5 into both fields on one line: 192.168.1.5 ~ 192.168.1.5.

Chapter 5: Configuring the Wireless-G Broadband Router with 2 Phone Ports The Security Tab - VPN Passthrough

The Voice Tab - Systems

babyTEL does not allow access to the Voice Tab. Contact babyTEL for more information.
Figure 5-24: Voice Tab - System
Chapter 5: Configuring the Wireless-G Broadband Router with 2 Phone Ports The Voice Tab - Systems
The Voice Tab - Line1 Settings
Figure 5-25: Voice Tab - Line1
Chapter 5: Configuring the Wireless-G Broadband Router with 2 Phone Ports The Voice Tab - Line1 Settings
This page is intentionally left blank.
The Voice Tab - Line2 Settings
Figure 5-26: Voice Tab - Line2
Chapter 5: Configuring the Wireless-G Broadband Router with 2 Phone Ports The Voice Tab - Line2 Settings
The Applications & Gaming Tab - Port Range Forwarding
When you click the Applications & Gaming tab, you will see the Port Range Forwarding screen. Port Range 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 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.

Port Range Forwarding

Port Range
To add a server using Port Range Forwarding, complete the following fields: Application. Enter the name of the application. 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. 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 E: Finding the MAC Address and IP Address for Your Ethernet Adapter. Enable. Check the Enable box to enable the services you have defined. Port Range Forwarding will not function if the Enabled button is left unchecked. This is disabled (unchecked) by default. 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. tcp: a network protocol for transmitting data that requires acknowledgement from the recipient of data sent udp: a network protocol for transmitting data that does not require acknowledgement from the recipient of the data that is sent. 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 Figure 5-27: Applications & Gaming Tab Port Range Forwarding

Chapter 5: Configuring the Wireless-G Broadband Router with 2 Phone Ports The Applications & Gaming Tab - Port Range Forwarding
The Applications & Gaming Tab - Port Triggering
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.

Port Triggering

Application. Enter the application name of the trigger.

Triggered Range

For each application, list the triggered port number range. Check with the Internet application documentation for the port number(s) needed. Start Port. Enter the starting port number of the Triggered Range. End Port. Enter the ending port number of the Triggered Range. Figure 5-28: Applications & Gaming Tab Port Triggering

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 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.
Chapter 5: Configuring the Wireless-G Broadband Router with 2 Phone Ports The Applications & Gaming Tab - Port Triggering
The Applications & 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: 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 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

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. In the This connection uses the following items box, highlight Internet Protocol (TCP/IP). Click the Properties button. 5. Enter a unique IP address that is not used by any other computer on the network connected to the Router. 6. Enter the Subnet Mask, 255.255.255.0. 7. Enter the Default Gateway, 192.168.1.1 (Routers default IP address). 8. 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. 9. Click the OK button in the Internet Protocol (TCP/IP) Properties window. Click the OK button in the Local Area Connection Properties window. 5. I want to test my Internet connection. A Check your TCP/IP settings. For Windows 98SE, Me, 2000, and XP: Refer to Windows Help for details. Make sure Obtain IP address automatically is selected in the settings. B Open a command prompt. For Windows 98SE and Me: Click Start and Run. In the Open field, type command. Press the Enter key or click the OK button. For Windows 2000 and XP: Click Start and Run. In the Open field, type cmd. Press the Enter key or click the OK button. In the command prompt, type ping 192.168.1.1 and press the Enter key. If you get a reply, the computer is communicating with the Router. If you do NOT get a reply, please check the cable, and make sure Obtain an IP address automatically is selected in the TCP/IP settings for your Ethernet adapter. C In the command prompt, type ping followed by your Internet or WAN IP address and press the Enter key. The Internet or WAN IP Address can be found on the Status screen of the Routers web-based utility. For example, if your Internet or WAN IP address is 1.2.3.4, you would enter ping 1.2.3.4 and press the Enter key. If you get a reply, the computer is connected to the Router. 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. D In the command prompt, type ping www.yahoo.com and press the Enter key.
If you get a reply, the computer is connected to the Internet. If you cannot open a webpage, try the ping command from a different computer to verify that your original computer is not the cause of the problem. If you do NOT get a reply, 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. 6. I am not getting an IP address on the Internet with my Internet connection. Refer to Problem #5, I want to test 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 E: 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 System section of Chapter 5: Configuring the Wireless-G Broadband Router with 2 Phone Ports for details. Make sure you are using the right Internet connection 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 Setup section of Chapter 5: Configuring the Wireless-G Broadband Router with 2 Phone Ports for details on Internet connection settings. Make sure you have the right cable. Check to see if the Internet column has a solidly lit Link/Act LED. Make sure the cable connecting from your cable or DSL modem is connected to the Routers Internet port. Verify that the Status page of the Routers 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 Routers web-based utility to see if you get an IP address. 7. I am not able to access the Setup page of the Routers web-based utility. Refer to Problem #5, I want to test my Internet connection to verify that your computer is properly connected to the Router. Refer to Appendix E: 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 #4: I need to set a static IP address. Refer to Problem #12: I need to remove the proxy settings or the dial-up pop-up window (for PPPoE users). 8. I need to set up a server behind my Router and make it available to the public. To use a server like a web, ftp, or mail server, you need to know the respective port numbers they are using. For example, port 80 (HTTP) is used for web; port 21 (FTP) is used for FTP, and port 25 (SMTP outgoing) and port 110 (POP3 incoming) are used for the mail server. You can get more information by viewing the documentation provided with the server you installed. Follow these steps to set up port forwarding through the Routers web-based utility. We will be setting up web, ftp, and mail servers.

15. The firmware upgrade failed: Not applicable ::
16. My DSL services 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 reestablish connection periodically. 1. To connect to the Router, go to the web browser, and enter http://192.168.1.1 or the IP address of the Router. 2. Enter the password, if asked. (The default password is admin.) 3. On the Setup screen, select the option Keep Alive, and set the Redial Period option at 20 (seconds). 4. Click the Save Settings button. 5. Click the Status tab, and click the Connect button. 6. You may see the login status display as Connecting. Press the F5 key to refresh the screen, until you see the login status display as Connected. Click the Save Settings button to continue. If the connection is lost again, follow steps 1- 6 to re-establish connection. 17. I cant access my e-mail, web or I 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: 1. To connect to the Router, go to the web browser, and enter http://192.168.1.1 or the IP address of the Router. 2. Enter the password, if asked. (The default password is admin.) 3. Look for the MTU option, and select Manual. In the Size field, enter 1492. 4. 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: 18. The Power LED keeps flashing. The Power LED flashes when the device is first powered up. Meantime, the system will boot up itself and check for proper operation. After finishing the checking procedure, the LED stays solid to show that the system is working fine. If the LED keeps flashing after this time, the device is not working properly. Contact babyTEL for assistance. 19. When I enter a URL or IP address, I get a time-out error or am prompted to retry. Check if other PCs work. If they do, ensure that your workstations IP settings are correct (IP Address, Subnet Mask, Default Gateway, and DNS). Restart the computer that is having a problem. If the 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.) 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. Manually configure the TCP/IP settings with a DNS address provided by your ISP. Make sure that your browser is set to connect directly and that any dial-up is disabled. For Internet Explorer, click Tools, Internet Options, and then the Connection tab. Make sure that Internet Explorer is set to Never dial a connection. For Netscape Navigator, click Edit, Preferences, Advanced, and Proxy. Make sure that Netscape Navigator is set to Direct connection to the Internet.

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 ~ 27900. If you want to use the UT Server Admin, forward another port. (Port 8080 usually works well but is used for remote admin. You may have to disable this.) Then in the [UWeb.WebServer] section of the server.ini file, set the ListenPort to 8080 (to 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 I 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 2700x added to the HL shortcut command line; the x would be 6, 7, 8, and on up. This lets multiple computers connect to the same server. One problem: Version 1.0.1.6 wont 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 adapters Advanced Properties tab.) Make sure that your proxy setting is disabled in the browser. Check our website at www.linksys.com for more information. If all else fails in the installation, what can I do? Reboot the system. Please refer to the rebooting procedures in the FAQ section of the babyTEL website.
How will I be notified of new Router firmware upgrades? babyTEL upgrades the firmware remotely and automatically, when needed. babyTEL will notify you by email prior to an update.
Will the Router function in a Macintosh environment? Yes, but the Routers setup pages are accessible only through Internet Explorer 4.0 or Netscape Navigator 4.0 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 E: 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. 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. What are the advanced features of the Router? The Routers advanced features include Advanced Wireless settings, Filters, Port Forwarding, Routing, and DDNS.

Figure E-4: MAC Address Filter List
Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter For the Routers Web-based Utility
Figure E-5: MAC Address Clone

Appendix F: Glossary

802.11b - A wireless networking standard that specifies a maximum data transfer rate of 11Mbps and an operating frequency of 2.4GHz. 802.11g - A wireless networking standard that specifies a maximum data transfer rate of 54Mbps, an operating frequency of 2.4GHz, and backward compatibility with 802.11b devices. Access Point - A device that allows wireless-equipped computers and other devices to communicate with a wired network. Also used to expand the range of a wireless network. Adapter - A device that adds network functionality to your PC. Ad-hoc - A group of wireless devices communicating directly with each other (peer-to-peer) without the use of an access point. AES (Advanced Encryption Standard) - A security method that uses symmetric 128-bit block data encryption. Backbone - The part of a network that connects most of the systems and networks together, and handles the most data. Bandwidth - The transmission capacity of a given device or network. Beacon Interval - Data transmitted on your wireless network that keeps the network synchronized. Bit - A binary digit. Boot - To start a device and cause it to start executing instructions. Bridge - A device that connects different networks. Broadband - An always-on, fast Internet connection. Browser - An application program that provides a way to look at and interact with all the information on the World Wide Web. Buffer - A shared or assigned memory area that is used to support and coordinate different computing and networking activities so one isn't held up by the other. Byte - A unit of data that is usually eight bits long
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 permanent IP addresses. DMZ (Demilitarized Zone) - Removes the Router's firewall protection from one PC, allowing it to be seen from the Internet. DNS (Domain Name Server) - The IP address of your ISP's server, which translates the names of websites into IP addresses. Domain - A specific name for a network of computers. Download - To receive a file transmitted over a network. DSL (Digital Subscriber Line) - An always-on broadband connection over traditional phone lines. DSSS (Direct-Sequence Spread-Spectrum) - Frequency transmission with a redundant bit pattern resulting in a lower probability of information being lost in transit. DTIM (Delivery Traffic Indication Message) - A message included in data packets that can increase wireless efficiency. Dynamic IP Address - A temporary IP address assigned by a DHCP server.

Caution: This equipment is intended to be used in all EU and EFTA countries. Outdoor use may be restricted to certain frequencies and/or may require a license for operation. Contact local Authority for procedure to follow. Note: Combinations of power levels and antennas resulting in a radiated power level of above 100 mW equivalent isotropic radiated power (EIRP) are considered as not compliant with the above mentioned directive and are not allowed for use within the European community and countries that have adopted the European R&TTE directive 1999/5/EC. For more details on legal combinations of power levels and antennas, contact Linksys Corporate Compliance. Linksys vakuuttaa tten ett dieses produkt tyyppinen laite on direktiivin 1999/5/EY oleellisten vaatimusten ja sit koskevien niden direktiivien muiden ehtojen mukainen. Linksys dclare que le produit est conforme aux conditions essentielles et aux dispositions relatives la directive 1999/5/EC. Belgique: Dans le cas d'une utilisation prive, l'extrieur d'un btiment, au-dessus d'un espace public, aucun enregistrement n'est ncessaire pour une distance de moins de 300m. Pour une distance suprieure 300m un enregistrement auprs de l'IBPT est requise. Pour une utilisation publique l'extrieur de btiments, une licence de l'IBPT est requise. Pour les enregistrements et licences, veuillez contacter l'IBPT. France: 2.4 GHz Bande : les canaux 10, 11, 12, 13 (2457, 2462, 2467, et 2472 MHz respectivement) sont compltement libres d'utilisation en France (en utilisation intrieur). Pour ce qui est des autres canaux, ils peuvent tre soumis autorisation selon le dpartment. L'utilisation en extrieur est soumis autorisation pralable et trs restreint. Vous pouvez contacter l'Autorit de Rgulation des Tlcommunications (http://www.art-telecom.fr) pour de plus amples renseignements. SAFETY NOTICES Caution: To reduce the risk of fire, use only No.26 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.
Appendix J: Contact Information

babyTEL

Need to contact babyTEL? Address: Email: Website: Telephone: 1425 Ren-Lvesque, Suite 700, Montral, Qubec, Canada H3G 1T7 service@babytel.net www.babytel.net Montral: 514-201-6550 Toronto: 416-848-0990 Toll free: 1-877-258-VoIP (8647)

Linksys

Need to contact Linksys? Visit Linksys online for information on the latest products and updates to your existing products at: www.linksys.com or ftp.linksys.com 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 the Linksys advice line a call at: 800-546-5797 (LINKSYS) Or fax your request in to: 949-823-3002