Linksys Wireless-G Broadband Router
Model WRT54GL

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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 © 2007 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 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”.

WRT54GL-UG-70125A DF

Table of Contents

Chapter 1: Introduction 1 Welcome 1 What’s in this User Guide? 2 Chapter 2: Planning Your Wireless Network 4 Network Topology 4 Ad-Hoc versus Infrastructure Mode 4 Network Layout 4 Chapter 3: Getting to Know the Wireless-G Broadband Router 6 The Back Panel 6 The Front Panel 7 Chapter 4: Connecting the Wireless-G Broadband Router 8 Overview 8 Hardware Installation for Connection to Your Broadband Modem 8 Hardware Installation for Connection to Another Router 10 Chapter 5: Setting up the Wireless-G Broadband Router 12 Overview 12 Using the Setup Wizard 12 Using SecureEasySetup to Configure Your Notebook 29 Chapter 6: Configuring the Wireless-G Broadband Router 32 Overview 32 The Setup Tab - Basic Setup 33 The Setup Tab - DDNS 38 The Setup Tab - MAC Address Clone 39 The Setup Tab - Advanced Routing 40 The Wireless Tab - Basic Wireless Settings 41 The Wireless Tab - Wireless Security 42 The Wireless Tab - Wireless MAC Filter 45 The Wireless Tab - Advanced Wireless Settings 46 The Security Tab - Firewall 48 The Security Tab - VPN Passthrough 48 The Access Restrictions Tab - Internet Access 49 The Applications and Gaming Tab - Port Range Forward 51 The Applications & Gaming Tab - Port Triggering 52 The Applications and Gaming Tab - DMZ 53 The Applications and Gaming Tab - QoS 53 Wired QoS 53 Wireless QoS 54 The Administration Tab - Management 55 The Administration Tab - Log 55 The Administration Tab - Diagnostics 56 The Administration Tab - Factory Defaults 57 The Administration Tab - Firmware Upgrade 57 The Administration Tab - Config Management 57 The Status Tab - Router 58 The Status Tab - Local Network 59 The Status Tab - Wireless 59 Appendix A: Troubleshooting 60 Common Problems and Solutions 60 Frequently Asked Questions 68 Appendix B: Wireless Security 75 Security Precautions 75 Security Threats Facing Wireless Networks 75 Appendix C: Upgrading Firmware 78 Appendix D: Windows Help 79 Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter80 Windows 98SE or Me Instructions 80 Windows 2000 or XP Instructions 80 For the Router’s Web-based Utility 81 Appendix F: Glossary 82 Appendix G: Specifications 89 Appendix H: Warranty Information 91 Appendix I: Regulatory Information 92 Appendix J: Contact Information 99

List of Figures

Figure 3-1: The Router’s Back Panel 6 Figure 3-2: The Router’s Front Panel 7 Figure 4-1: Connecting Your Internet Connection 8 Figure 4-2: Connecting Your Network Devices 9 Figure 4-3: Connecting the Power 9 Figure 4-4: Diagram for Connection to Another Router 10 Figure 4-5: Connecting Another Router 10 Figure 4-6: Connecting Your Network Devices 11 Figure 4-7: Connecting the Power 11 Figure 5-1: Setup Wizard’s Welcome - Language Selection Screen 12 Figure 5-2: Setup Wizard’s Welcome - Start Wizard Screen 12 Figure 5-3: Setup Wizard’s License Agreement Screen 13 Figure 5-4: Setup Wizard’s Disconnect the Modem from the PC Screen 13 Figure 5-5: Setup Wizard’s Connect the Modem to the Router Screen 14 Figure 5-6: Setup Wizard’s Connect a Network Cable to a PC Screen 14 Figure 5-7: Setup Wizard’s Connect the Network Cable to the Router Screen 15 Figure 5-8: Setup Wizard’s Power on the Router Screen 15 Figure 5-9: Setup Wizard’s Check the Router’s Status Screen 16 Figure 5-10: Setup Wizard’s Configure Cable or DHCP Settings Screen 16 Figure 5-11: Setup Wizard’s Configure DSL (PPPoE) Settings Screen 17 Figure 5-12: Setup Wizard’s Advanced Internet Settings - Static IP Screen 17 Figure 5-13: Setup Wizard’s Advanced Internet Settings - PPTP Screen 18 Figure 5-14: Setup Wizard’s Keep Alive/Connect on Demand (PPTP Continued) Screen 18 Figure 5-15: Setup Wizard’s Advanced Internet Settings - L2TP Screen 19 Figure 5-16: Setup Wizard’s Advanced Internet Settings - Telstra Screen 20 Figure 5-17: Setup Wizard’s Set the Router’s Password Screen 21 Figure 5-18: Setup Wizard’s Configure Wireless Settings Screen 21 Figure 5-19: Setup Wizard’s SecureEasySetup Screen 22 Figure 5-20: SecureEasySetup Logo 22 Figure 5-21: Additional Information - Hardware Button 22 Figure 5-22: Additional Information - Software Button 22 Figure 5-23: Setup Wizard’s Configure Wireless Settings Screen 23 Figure 5-24: Setup Wizard’s Confirm New Settings Screen 23 Figure 5-25: Setup Wizard’s Safe Surfing Screen 24 Figure 5-26: Setup Wizard’s Congratulations Screen 24 Figure 5-27: Setup Wizard’s Configure Wireless Settings Screen 25 Figure 5-28: Setup Wizard’s Wireless Settings Screen 25 Figure 5-29: Setup Wizard’s Wireless Security - WPA-PSK Screen 26 Figure 5-30: Setup Wizard’s Wireless Security - WEP (64-Bit) Screen 27 Figure 5-32: Setup Wizard’s Confirm New Settings Screen 27 Figure 5-31: Setup Wizard’s Norton Screen 28 Figure 5-33: Setup Wizard’s Congratulations Screen 28 Figure 5-34: Setup Wizard’s Welcome - Start Wizard Screen 29 Figure 5-35: SecureEasySetup Welcome Screen 29 Figure 5-36: Configure Wireless Settings #1 Screen 30 Figure 5-37: Configure Wireless Settings #2 Screen 30 Figure 5-38: Your Wireless Settings Screen 31 Figure 6-1: Password Screen 32 Figure 6-2: Setup Tab - Basic Setup 33 Figure 6-3: DHCP Connection Type 33 Figure 6-4: Static IP Connection Type 33 Figure 6-5: PPPoE Connection Type 34 Figure 6-6: PPTP Connection Type 34 Figure 6-7: L2TP Connection Type 34 Figure 6-8: Telstra Cable Connection Type 35 Figure 6-9: Optional Settings 35 Figure 6-10: Router IP 35 Figure 6-11: Network Address Server Settings 36 Figure 6-12: Time Setting 37 Figure 6-13: Setup Tab - DDNS - DynDNS 38 Figure 6-14: Setup Tab - DDNS - TZO 38 Figure 6-15: Setup Tab - MAC Address Clone 39 Figure 6-16: Setup Tab - Advanced Routing (Gateway) 40 Figure 6-17: Setup Tab - Advanced Routing (Router) 40 Figure 6-18: Wireless Tab - Basic Wireless Settings 41 Figure 6-19: Wireless Tab - Wireless Security 42 Figure 6-20: Wireless Tab - Wireless Security (WPA Enterprise) 42 Figure 6-21: Wireless Tab - Wireless Security (WPA2 Personal) 43 Figure 6-22: Wireless Tab - Wireless Security (WPA2 Enterprise) 43 Figure 6-23: Wireless Tab - Wireless Security (RADIUS) 44 Figure 6-24: Wireless Tab - Wireless Security (WEP) 44 Figure 6-25: Wireless Tab - Wireless MAC Filter 45 Figure 6-26: MAC Address Filter List 45 Figure 6-27: Wireless Tab - Advanced Wireless Settings 46 Figure 6-28: Security Tab - Firewall 48 Figure 6-29: Security Tab - VPN Passthrough 48 Figure 6-30: Access Restrictions Tab - Internet Access 49 Figure 6-31: Internet Policy Summary 49 Figure 6-32: List of PCs 49 Figure 6-33: Port Services 50 Figure 6-34: Applications and Gaming Tab - Port Range Forward 51 Figure 6-35: Applications and Gaming Tab - Port Triggering 52 Figure 6-36: Applications and Gaming Tab - DMZ 53 Figure 6-37: Applications and Gaming Tab - QoS 54 Figure 6-38: Administration Tab - Management 55 Figure 6-39: Administration Tab - Log 55 Figure 6-40: Administration Tab - Diagnostics 56 Figure 6-41: The Ping Test 56 Figure 6-42: The Traceroute Test 56 Figure 6-43: Administration Tab - Factory Defaults 57 Figure 6-44: Administration Tab - Firmware Upgrade 57 Figure 6-45: Administration Tab - Config Management 57 Figure 6-46: Status Tab - Router 58 Figure 6-47: Status Tab - Local Network 59 Figure 6-48: DHCP Clients Table 59 Figure 6-49: Status Tab - Wireless 59 Figure C-1: Upgrade Firmware 78 Figure E-1: IP Configuration Screen 80 Figure E-2: MAC Address/Adapter Address 80 Figure E-3: MAC Address/Physical Address 80

Wireless-G Broadband Router
Figure E-4: MAC Address Filter List 81
Figure E-5: MAC Address Clone 81

Chapter 1: Introduction

Welcome

Thank you for choosing the Linksys Wireless-G Broadband Router. The Wireless-G Broadband Router will allow you to network wirelessly better than ever, sharing Internet access, files and fun, easily and securely.

How does the Wireless-G Broadband 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, this access can be shared over the four switched ports and via the wireless broadcast at up to 11Mbps for Wireless-B or up to 54Mbps for Wireless-G.

Use the WPA standard to secure your wireless network while the whole network is protected through a Stateful Packet Inspection (SPI) firewall and Network Address Translation (NAT) technology. The Router’s SecureEasySetup™ feature makes it a snap to set up WPA when you have other SecureEasySetup devices— notebooks, printers, other peripherals—comprising your network. Run the Setup Wizard and it will guide you through the steps. You can also access the Router’s features through the easy-to-use, browser-based utility.

But what does all of this mean?

Networks are useful tools for sharing computer resources. You can access one printer from different computers and access data located on another computer's hard drive. Networks are even used for playing multiplayer video games. So, networks are not only useful in homes and offices, they can also be fun.

PCs on a wired network create a LAN, or Local Area Network. They are connected with Ethernet cables, which is why the network is called “wired”.

PCs equipped with wireless cards or adapters can communicate without cumbersome cables. By sharing the same wireless settings, within their transmission radius, they form a wireless network. This is sometimes called a WLAN, or Wireless Local Area Network. The Wireless-G Broadband Router bridges wireless networks of both 802.11b and 802.11g standards and wired networks, allowing them to communicate with each other.

With your networks all connected, wired, wireless, and the Internet, you can now share files and Internet access—and even play games. All the while, the Wireless-G Broadband Router protects your networks from unauthorized and unwelcome users.

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 use the instructions in this Guide to help you connect the Wireless-G Broadband Router, set it up, and configure it to bridge your different networks. These instructions should be all you need to get the most out of the Wireless-G Broadband Router.

WPA (Wi-fi Protected Access): a wireless security protocol using TKIP (Temporal Key Integrity Protocol) encryption, which can be used in conjunction with a RADIUS server.

SPI (Stateful Packet Inspection) firewall: a technology that inspects incoming packets of information before allowing them to enter the network.

firewall: Security measures that protect the resources of a local network from intruders.

NAT (Network AddressTranslation): NAT technology

translates IP addresses of a local area network to a

different IP address for the Internet.

LAN (Local Area Network): The computers and networking products that make up the network in your home or office.

What’s in this User Guide?

This user guide covers the steps for setting up and using the Wireless-G Broadband Router.

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.

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 a wireless router or an access point, such as the Wireless-G Broadband Router, 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 Router 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.

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 has been specifically designed for use with both your 802.11b and 802.11g products. Now, products using these standards can communicate with each other.

SSID (service set identifier): your wireless network’s name.

infrastructure: a wireless network that is bridged to a wired network via an access point.

ad-hoc: a group of wireless devices communicating directly to each other (peer-topeer) without the use of an access point.

The Wireless-G Broadband Router is compatible with all 802.11b and 802.11g 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 (WPS54G) and Wireless Ethernet Bridges (WET54G, WET11).

When you wish to connect your wireless network with your wired network, you can use the Wireless-G Broadband Router’s four LAN ports. To add more ports, any of the Wireless-G Broadband Router's LAN ports can be connected to any of Linksys's switches (such as the SD205 or SD208).

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.

Chapter 3: Getting to Know the Wireless-G Broadband Router

The Back Panel

The Router's ports, where the cables are connected, are located on the back panel.

Reset Button There are two ways to reset the Router's factory defaults. Either press the Reset Button, for approximately five seconds, or restore the defaults from the Administration tab - Factory Defaults in the Router's Web-based Utility.
Internet The Internet port is where you will connect your broadband Internet connection.
1, 2, 3, 4 These ports (1, 2, 3, 4) connect the Router to your networked PCs and other Ethernet network devices.
Power The Power port is where you will connect the power adapter.

IMPORTANT: Resetting the Router will erase all of your settings (Internet connection, wireless security, and other settings) and replace them with the factory defaults. Do not reset the Router if you want to retain these settings.

The Front Panel

The Router’s SecureEasySetup button (the Cisco logo) and LEDs are located on the front panel.

NOTE: SecureEasySetup is a feature that makes it orange when the Router is powered on. The color orange indicates that the Router is not using

(Cisco logo) Orange/White. The Cisco logo is the Router’s SecureEasySetup button. It lights up and will stay

easy to set up your wireless network. If you have the SecureEasySetup feature, while the color white indicates that the Router is using the

SecureEasySetup devices, run the Router’s Setup

SecureEasySetup feature. When the Router enters SecureEasySetup mode, the Cisco logo will Wizard CD-ROM and follow the on-screen

turn white and start flashing. After the Router has generated the SSID and WPA-PSK (also instructions to use SecureEasySetup.

called WPA-Personal) key, the Cisco logo will stop flashing and stay white.

To clear the SSID and WPA-PSK key, press and hold down the Cisco logo for five seconds. The Cisco logo will flash slowly as the Router resets itself. The Cisco logo will turn orange to indicate a successful reset.

Power Green. The Power LED lights up and will stay on while the Router is powered on. When the Router goes through its self-diagnostic mode during every boot-up, this LED will flash. When the diagnostic is complete, the LED will be solidly lit.

DMZ Green. The DMZ LED indicates when the DMZ function is being used. This LED will remain lit as long as DMZ is enabled.

WLAN Green. The WLAN LED lights up when the wireless feature is enabled. If the LED is flashing, the Router is actively sending or receiving data over the network.

1, 2, 3, 4 Green. These numbered LEDs, corresponding with the numbered ports on the Router’s back panel, serve two purposes. If the LED is continuously lit, the Router is successfully connected to a device through that port. A flashing LED indicates network activity over that port.

Internet Green. The Internet LED lights up when there is a connection made through the Internet port.

Chapter 4: Connecting the Wireless-G Broadband Router

Overview

This chapter includes two sets of instructions. If the Wireless-G Broadband Router will be the only router in your network, follow the instructions in “Hardware Installation for Connection to Your Broadband Modem.” If you want to install the Wireless-G Broadband Router behind another router in your network, then follow the instructions in “Hardware Installation for Connection to Another Router.”

Hardware Installation for Connection to Your Broadband Modem

  1. Power down your network devices.

  2. Locate an optimum location for the Router. The best place for the Router is usually at the center of your wireless network, with line of sight to all of your mobile stations.

  3. Fix the direction of the antennas. Try to place the Router in a position that will best cover your wireless network. Normally, the higher you place the antenna, the better the performance will be.

  4. Connect a standard Ethernet network cable to the Router’s Internet port. Then, connect the other end of the Ethernet cable to your cable or DSL broadband modem.

  5. Connect your network PCs or Ethernet devices to the Router’s numbered ports using standard Ethernet network cabling.

  6. Connect the AC power adapter to the Router's Power port and the other end into an electrical outlet. Only use the power adapter supplied with the Router. Use of a different adapter may result in product damage.

IMPORTANT: Make sure you use the power adapter that is supplied with the Router. Use of a different power adapter could damage the Router.

Now that the hardware installation is complete, proceed to “Chapter 5: Setting up the Wireless-G Broadband Router,” for directions on how to configure the Router.

Hardware Installation for Connection to Another Router

Before you install the Router, you must change the default IP address of the other router. This is mandatory because both routers may be set to the same IP address by default. If you do not change the other router’s default IP address, then you may not be able to set up the Router.

First, make sure the Router is NOT connected to your network. Then follow these instructions:

  1. To access the other router’s Web-based Utility, launch Internet Explorer or Netscape Navigator, and enter the other router’s default IP address, 192.168.1.1, in the Address field. Then press Enter.

  2. A password request page will appear. Leave the User Name field blank. In the Password field, enter the password you have set (the default password is admin). Then click the OK button.

  3. The first screen that appears will display the Setup tab. In the Network Setup section, there is a setting called Local IP Address, which is set to 192.168.1.1. Change this to 192.168.2.1.

  4. Click the Save Settings button to save your change, and then exit the Web-based Utility.

  5. Power down your network devices. Now you will begin the hardware installation of Router.

  6. Locate an optimum location for the Router. The best place for the Router is usually at the center of your wireless network, with line of sight to all of your mobile stations.

  7. Fix the direction of the antennas. Try to place the Router in a position that will best cover your wireless network. Normally, the higher you place the antenna, the better the performance will be.

  8. Connect a standard Ethernet network cable to the Router’s Internet port. Then, connect the other end of the Ethernet cable to one of the numbered Ethernet ports on your other router.

Chapter 4: Connecting the Wireless-G Broadband Router Hardware Installation for Connection to Another Router

NOTE: Steps 1-4 are instructions for a typical Linksys router; however, if you are using a non-Linksys router, refer to the other router’s documentation for instructions on how to change its local IP address to 192.168.2.1.

Broadband Internet Modem

Figure 4-4: Diagram for Connection to Another Router

Router

Wireless-G Broadband Router

    1. Decide which network computers or Ethernet devices you want to connect to the Router.

    2. Disconnect the selected computers or devices from the other router, and then connect them to the Router’s numbered ports using standard Ethernet network cabling.
  1. Connect the AC power adapter to the Router's Power port and the other end into an electrical outlet. Only use

IMPORTANT: Make sure you use the power the power adapter supplied with the Router. Use of a different adapter may result in product damage.

adapter that is supplied with the Router. Use of a different power adapter could damage the Router.

Now that the hardware installation is complete, proceed to “Chapter 5: Setting up the Wireless-G Broadband Router,” for directions on how to configure the Router.

Chapter 5: Setting up the Wireless-G Broadband Router

Overview

The Wireless-G Broadband Router Setup Wizard will guide you through the installation procedure. It will go through the instructions for configuring the Router’s network and wireless settings.

Using the Setup Wizard

  1. Insert the Setup Wizard CD-ROM into your CD-ROM drive. The Setup Wizard should run automatically, and the Welcome screen should appear. If it does not, click the Start button and choose Run. In the field that appears, enter D:\setup.exe (if “D” is the letter of your CD-ROM drive).

  2. The Setup Wizard will automatically detect the language setting of your PC. On the initial Welcome screen, click the Next button if you want to proceed with the Setup Wizard using the current language. If you want to use a different language, select the appropriate language, and then click the Next button.

  3. On the following Welcome screen, click the Click Here to Start button if this is the first time you are running the Setup Wizard. These are your other choices:

Wireless Setup - If you have a computer displaying the SecureEasySetup logo, then click Wireless Setup and proceed to the section at the end of this chapter, “Using SecureEasySetup to Configure Your Notebook.”

NOTE: SecureEasySetup uses WPA-Personal encryption. If your current wireless devices do not support WPA-Personal security, then you cannot use SecureEasySetup on your network. You will need to manually configure your network security using the encryption supported by your existing devices.

Norton Internet Security - Click the Norton Internet Security button to install the Norton Internet Security software program.

User Guide - Click the User Guide button to open the PDF file of this User Guide.

Exit - Click the Exit button to exit the Setup Wizard.

Chapter 5: Setting up the Wireless-G Broadband Router Overview

  1. After reading the License Agreement, click the Next button if you accept, or click the Cancel button to end the installation.

  2. The Setup Wizard will ask you to disconnect your broadband modem from your PC. After you have done so, click the Next button.

  3. The Setup Wizard will ask you to connect your broadband modem to the Router. After you have done so, click the Next button.

  4. The Setup Wizard will ask you to connect a network cable to your PC. After you have done so, click the Next button.

  5. The Setup Wizard will ask you to connect the other end of the network cable to the Router. Then you can also connect additional PCs to the Router. After you have done so, click the Next button.

  6. The Setup Wizard will ask you to power on the Router. After you have done so, click the Next button.

  7. Make sure the Router’s Power, Internet, and numbered LEDs (depending on the number of PCs connected) are lit on its front panel. After you have done so, click the Next button.

  8. The Setup Wizard will automatically detect the Internet connection type you use: Cable or DHCP or DSL (PPPoE). If the Setup Wizard cannot detect your Internet connection type, you will see the Advanced Internet Settings screen, and you will be asked to select your Internet connection type: Static IP, PPTP, L2TP, or Telstra. Proceed to the appropriate section for your Internet connection type.

Cable or DHCP Host Name - Enter the Host Name if required by your ISP; otherwise, leave this field blank. Domain Name - Enter the Domain Name if required by your ISP; otherwise, leave this field blank. Click the Next button to continue or the Back button to return to the previous screen.

DSL (PPPoE) User Name - Enter the User Name provided by your ISP. Password - Enter the Password provided by your ISP. Confirm - To confirm the Password, enter it again in this field. Keep Alive - If you want the Router to periodically check your Internet connection, select Keep Alive. Then

specify how often you want the Router to check the Internet connection. If the connection is down, the Router

will automatically re-establish your connection. Connect on Demand - If you want the Router to end the Internet connection after it has been inactive for a period of time, select Connect on Demand and designate the number of minutes you want that period of inactivity to last.

Click the Next button to continue or the Back button to return to the previous screen.

Static IP

Connection - If you are required to use a permanent IP address to connect to the Internet, select Static IP from the drop-down menu. IP Address - Enter the IP address provided by your ISP. Subnet Mask- Enter the Subnet Mask provided by your ISP. Gateway - Enter the Gateway IP address provided by your ISP. DNS 1-2 - Enter the DNS (Domain Name System) server IP address(es) provided by your ISP. You need to enter

at least one DNS address. Click the Next button to continue or the Back button to return to the previous screen.

PPTP

Connection - PPTP (Point-to-Point Tunneling Protocol) service is used in Europe only. If you are using a PPTP connection, select PPTP from the drop-down menu. User Name - Enter the User Name provided by your ISP. Password - Enter the Password provided by your ISP. Confirm - To confirm the Password, enter it again in this field. IP Address - Enter the IP address provided by your ISP. Subnet Mask- Enter the Subnet Mask provided by your ISP. Gateway - Enter the Gateway IP address provided by your ISP. Click the Next button to continue or the Back button to return to the previous screen. Keep Alive - If you want the Router to periodically check your Internet connection, select Keep Alive. Then

specify how often you want the Router to check the Internet connection. If the connection is down, the Router

will automatically re-establish your connection. Connect on Demand - If you want the Router to end the Internet connection after it has been inactive for a period of time, select Connect on Demand and designate the number of minutes you want that period of inactivity to last.

Click the Next button to continue or the Back button to return to the previous screen.

L2TP

Connection - If you are using an L2TP (Layer 2 Tunneling Protocol) connection, select L2TP from the drop- down menu. User Name - Enter the User Name provided by your ISP. Password - Enter the Password provided by your ISP. Confirm - To confirm the Password, enter it again in this field. L2TP Server - Enter the IP address of the L2TP server you are using; this should be provided by your ISP. Keep Alive - If you want the Router to periodically check your Internet connection, select Keep Alive. Then

specify how often you want the Router to check the Internet connection. If the connection is down, the Router

will automatically re-establish your connection. Connect on Demand - If you want the Router to end the Internet connection after it has been inactive for a period of time, select Connect on Demand and designate the number of minutes you want that period of inactivity to last.

Click the Next button to continue or the Back button to return to the previous screen.

Telstra

Connection - Telstra is a service used in Australia only. If you are using this service, select Telstra from the drop-down menu. User Name - Enter the User Name provided by your ISP. Password - Enter the Password provided by your ISP. Confirm - To confirm the Password, enter it again in this field. Heart Beat Server - Enter the IP address of the Heart Beat Server server you are using (this should be

provided by your ISP). Keep Alive - If you want the Router to periodically check your Internet connection, select Keep Alive. Then

specify how often you want the Router to check the Internet connection. If the connection is down, the Router will automatically re-establish your connection. Connect on Demand - If you want the Router to end the Internet connection after it has been inactive for a

period of time, select Connect on Demand and designate the number of minutes you want that period of inactivity to last. Click the Next button to continue or the Back button to return to the previous screen.

  1. The Router provides a Web-based Utility you can use for configuring the Router from any networked PC. Password - Enter a password that will control access to the Utility. Confirm - Enter the password again in the Confirm field. Click the Next button to continue or the Back button to return to the previous screen.

  2. There are two ways to configure the Router’s wireless settings, SecureEasySetup and manual configuration.

If you have other SecureEasySetup devices, such as notebook adapters or printers, then you can use the Router’s SecureEasySetup feature to create your wireless network. Proceed to the section, “Using the Router’s SecureEasySetup Feature.”

If you do not have other SecureEasySetup devices, then proceed to the section, “Manually Configuring the Router’s Wireless Settings.”

Using the Router’s SecureEasySetup Feature

Read these instructions before you press any SecureEasySetup buttons. You should locate the SecureEasySetup buttons of your devices before using the Router’s SecureEasySetup feature.

NOTE: SecureEasySetup uses WPA-Personal encryption. If your current wireless devices do not support WPA-Personal security, then you cannot use SecureEasySetup on your network. You will need to manually configure your network security using the encryption supported by your existing devices.

1. Before you push any button, locate the SecureEasySetup button for each of your other SecureEasySetup devices. If you are not sure where to find this button, click Where is my other SecureEasySetup button?

You will see a screen showing the SecureEasySetup logo. Click the Next button to continue or the Close

button to return to the Configure Wireless Settings screen.

You will see a screen with instructions on how to locate the SecureEasySetup hardware button. If your device does not have a hardware button, it most likely will have a software button. Click the Next button for instructions to locate the software button, or click the Close button to return to the Configure Wireless Settings screen.

You will see a screen with instructions on how to locate the SecureEasySetup software button. Click the Close button to return to the Configure Wireless Settings screen.

Chapter 5: Setting up the Wireless-G Broadband Router Using the Setup Wizard

2. Press the Router’s orange Cisco logo on its front panel. When the logo turns white and begins to flash, press the SecureEasySetup button on another device. The Router’s Cisco logo will stop flashing when the device has been added to the network. Then repeat this procedure for each additional SecureEasySetup device.

When you have finished configuring the devices in your wireless network, click the Next button to continue.

NOTE: You can only add one SecureEasySetup device at a time.

    1. The Setup Wizard will ask you to review your settings before it saves them. Write down these settings if you need to manually configure any non-SecureEasySetup devices.

    2. Click the Yes button if you are satisfied with your settings, or click the No button if you do not want to save your new settings.
  1. After the settings have been saved, the Safe Surfing screen will appear. Click the Norton Internet Security Suite button to install the special edition of Norton Internet Security on your computer, or click the Finish button to complete the Setup Wizard.

  2. The Congratulations screen will appear. Click the Online Registration button to register the Router, or click the Exit button to exit the Setup Wizard.

Congratulations! The installation of the Wireless-G Broadband Router is complete.

If you want to make advanced configuration changes, proceed to “Chapter 6: Configuring the Wireless-G Broadband Router.”

Manually Configuring the Router’s Wireless Settings

  1. If you do not have other SecureEasySetup devices, then click the Enter Wireless Settings Manually button.

  2. The Setup Wizard will ask you to enter the settings for your wireless network.

In the SSID field, enter the name of your wireless network. The SSID must be identical for all devices in the network. The default setting is linksys (all lowercase).

NOTE: An SSID is the network name shared by all devices in a wireless network. Your network’s SSID should be unique to your network and identical for all devices within the network. Select the operating channel for your wireless network. All of your wireless devices will use this channel to communicate.

From the Network Mode drop-down menu, 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 Mode. If you have only 802.11g devices, select G-Only. If you have only 802.11b devices, select B-Only. If you want to disable your wireless network, select Disable.

Enter a name for the Router in the Device Name field.

Click the Next button to continue or the Back button to return to the previous screen.

Chapter 5: Setting up the Wireless-G Broadband Router Using the Setup Wizard

3. Select the method of security you want to use: WPA-PSK (also called WPA-Personal), WEP (64-Bit), or WEP (128-Bit). WPA stands for Wi-Fi Protected Access, and WEP stands for Wired Equivalent Privacy. WPA is a stronger security method than WEP. Proceed to the appropriate section for your security method.

If you want to use WPA-RADIUS (also called WPA-Enterprise), then you should select Disabled and use the Router’s Web-based Utility to configure your wireless security settings. Click the Next button and proceed to step 4.

If you do not want to use any wireless security method, select Disabled and then click the Next button. Proceed to step 4.

WPA-PSK

WPA-PSK offers two encryption methods, TKIP and AES, with dynamic encryption keys. Select TKIP or AES for encryption. Then enter a Passphrase that is 8-32 characters in length.

Encryption - Select the type of algorithm you want to use, TKIP or AES, from the Encryption drop-down menu.

Passphrase - Enter a Passphrase, also called a pre-shared key, of 8-32 characters in the Passphrase field. The longer and more complex your Passphrase is, the more secure your network will be.

Click the Next button to continue or the Back button to return to the previous screen.

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.

radius (remote authentication dial-in user service): a protocol that uses an authentication server to control network access.

encryption: encoding data transmitted in a network.

WEP (64-Bit)

Enter a passphrase or WEP key.

Passphrase - Enter a passphrase in the Passphrase field, so a WEP key is automatically generated. The passphrase is case-sensitive and should not be longer than 16 alphanumeric characters. It must match the passphrase of your other wireless network devices and is compatible with Linksys wireless products only. (If you have any non-Linksys wireless products, enter the WEP key manually on those products.)

WEP Key - The WEP key you enter must match the WEP key of your wireless network. For 64-bit encryption, enter exactly 10 hexadecimal characters. Valid hexadecimal characters are “0” to “9” and “A” to “F”.

Click the Next button to continue or the Back button to return to the previous screen.

WEP (128-Bit)

Enter a passphrase or WEP key.

Passphrase - Enter a passphrase in the Passphrase field, so a WEP key is automatically generated. The passphrase is case-sensitive and should not be longer than 16 alphanumeric characters. It must match the passphrase of your other wireless network devices and is compatible with Linksys wireless products only. (If you have any non-Linksys wireless products, enter the WEP key manually on those products.)

WEP Key - The WEP key you enter must match the WEP key of your wireless network. For 128-bit encryption, enter exactly 26 hexadecimal characters. Valid hexadecimal characters are “0” to “9” and “A” to “F”.

Click the Next button to continue or the Back button to return to the previous screen.

  1. The Setup Wizard will ask you to review your settings before it saves them. Click the Yes button if you are satisfied with your settings, or click the No button if you do not want to save your new settings.

  2. After the settings have been saved, the Safe Surfing screen will appear. Click the Norton Internet Security Suite button to install the special edition of Norton Internet Security on your computer, or click the Finish button to complete the Setup Wizard.

  3. The Congratulations screen will appear. Click the Online Registration button to register the Router, or click the Exit button to exit the Setup Wizard.

Congratulations! The installation of the Wireless-G Broadband Router is complete.

If you want to make advanced configuration changes, proceed to “Chapter 6: Configuring the Wireless-G Broadband Router.”

Using SecureEasySetup to Configure Your Notebook

This section explains how to use SecureEasySetup if you have a computer displaying the SecureEasySetup logo.

NOTE: SecureEasySetup uses WPA-Personal encryption. If your current wireless devices do not support WPA-Personal security, then you cannot use SecureEasySetup on your network. You will need to manually configure your network security using the encryption supported by your existing devices.

    1. After you have clicked Wireless Setup on the Welcome screen, the first screen that appears will describe the two steps you will take to configure your notebook. Click the Next button to continue.

    2. To exit the Wireless Setup Wizard, click the Exit button. If you need more information, click the Help button.
    1. The next screen will tell you to press the lighted Cisco logo on the Router. After you have pressed the logo, click the Next button to continue.

    2. To exit the Wireless Setup Wizard, click the Exit button. If you need more information, click the Help button.
    1. Click the on-screen START button to continue.

    2. To exit the Wireless Setup Wizard, click the Exit button. If you need more information, click the Help button. To return to the previous screen, click the Back button.
  1. The Your Wireless Settings screen will appear when the wireless settings have been configured. To save your configuration settings to a text file on your computer, click the Save button. To print your configuration settings, click the Print button. (You may need these settings so you can manually configure any non-SecureEasySetup devices you may have.)

To exit the Wireless Setup Wizard, click the Exit button. If you need more information, click the Help button. To return to the previous screen, click the Back button.

Congratulations! The installation of the Wireless-G Broadband Router is complete.

If you want to make advanced configuration changes, proceed to “Chapter 6: Configuring the Wireless-G Broadband Router.”

Chapter 6: Configuring the Wireless-G Broadband

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 chapter will describe each web page in the Utility and each page’s key functions. The utility can be accessed via your web browser through use of a computer connected to the Router. For a basic network setup, most users will use these two 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 Router’s default password is admin. To secure the Router, change the Password from its default.

There are seven main tabs: Setup, Wireless, Security, Access Restrictions, Applications & Gaming, Administration, and Status. Additional tabs will be available after you click one of the main tabs.

To access the Web-based Utility, launch Internet Explorer or Netscape Navigator, and enter the Router’s default IP address, 192.168.1.1, in the Address field. Then press Enter.

A password request page, shown in Figure 6-1 will appear. (Non-Windows XP users will see a similar screen.) Leave the User Name field blank. The first time you open the Web-based Utility, use the default password admin. (You can set a new password from the Administration tab’s Management screen.) Then click the OK button.

NOTE: For first-time installation, Linksys recommends using the Setup Wizard on the Setup CD-ROM. If you want to configure advanced settings, use this chapter to learn about the Web-based Utility.

HAVE YOU: Enabled TCP/IP on your PCs? PCs communicate over the network with this protocol. Refer to “Appendix D: Windows Help” for more information on TCP/IP.

The Setup Tab - Basic Setup

The first screen that appears displays the Setup tab. This allows you to change the Router's general settings. Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.

Internet Setup

The Internet Setup section configures the Router to your Internet connection. Most of this information can be obtained through your ISP.

Internet Connection Type

Choose the type of Internet connection your ISP provides from the drop-down menu.

  • DHCP. By default, the Router’s Internet Connection Type is set to Automatic Configuration - DHCP, which should be kept only if your ISP supports DHCP or you are connecting through a dynamic IP address.

  • Static IP. If you are required to use a permanent IP address to connect to the Internet, select Static IP.

Internet IP Address. This is the Router’s IP address, 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 users on the Internet (including your ISP). Your ISP

will provide you with the Subnet Mask. Gateway. Your ISP will provide you with the Gateway Address, which is the ISP server’s IP address. Static 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. If you are connected to the Internet through a DSL line, check with your ISP to see if they use PPPoE. If they do, you will have to enable PPPoE.

User Name and Password. Enter the User Name and Password provided by your ISP.

Connect on Demand: Max Idle Time. You can configure the Router to cut the Internet connection after it has been inactive for a specified period of time (Max Idle Time). If your Internet connection has been terminated due to inactivity, Connect on Demand enables the 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 button.

Figure 6-3: DHCP Connection Type

Figure 6-4: Static IP Connection Type

Static IP address: a fixed address assigned to a computer or device connected to a network.

In the Max Idle Time field, enter the number of minutes you want to have elapsed before your Internet connection terminates.
Keep Alive Option: Redial Period. If you select this option, the Router will periodically check your Internet connection. If you are disconnected, then the Router will automatically re-establish your connection. To use this option, click the button next to Keep Alive. In the Redial Period field, you specify how often you want the Router to check the Internet connection. The default Redial Period is 30 seconds. Figure 6-5: PPPoE Connection Type
• PPTP. Point-to-Point Tunneling Protocol (PPTP) is a service that applies to connections in Europe only.
Specify Internet IP Address. This is the Router’s IP address, as 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 users on the Internet (including your ISP). Your ISP will provide you with the Subnet Mask.
Gateway. Your ISP will provide you with the Gateway Address.
User Name and Password. Enter the User Name and Password provided by your ISP.
Connect on Demand: Max Idle Time. You can configure the Router to cut the Internet connection after it has been inactive for a specified period of time (Max Idle Time). If your Internet connection has been terminated due to inactivity, Connect on Demand enables the 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 button. In the Max Idle Time field, enter the number of minutes you want to have elapsed before your Internet connection terminates. Keep Alive Option: Redial Period. If you select this option, the Router will periodically check your Internet connection. If you are disconnected, then the Router will automatically re-establish your connection. To use this option, click the button next to Keep Alive. In the Redial Period field, you specify how often you want the Router to check the Internet connection. The default Redial Period is 30 seconds. Figure 6-6: PPTP Connection Type
• L2TP. Layer 2 Tunneling Protocol (L2TP) is a service that applies to connections in Israel only. Check with your ISP for the necessary setup information.
User Name and Password. Enter the User Name and Password provided by your ISP.
Server 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. 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 Figure 6-7: L2TP Connection Type
Chapter 6: Configuring the Wireless-G Broadband Router The Setup Tab - Basic Setup 34

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. To use Connect on Demand, click the 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 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 button next to Keep Alive. The default Redial Period is 30 seconds.

• Telstra Cable. Telstra Cable is a service used in Australia only. Check with your ISP for the necessary setup information.

User Name and Password. Enter the User Name and Password provided by your ISP.

Server 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.

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. To use Connect on Demand, click the 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 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 button next to Keep Alive. The default Redial Period is 30 seconds.

Optional Settings

Some of these settings may be required by your ISP. Verify with your ISP before making any changes.

Router Name. In this field, you can type a name of up to 39 characters to represent the Router.

Host Name/Domain Name. These fields allow you to supply a host and domain name for the Router. Some ISPs,

usually cable 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. MTU is the Maximum Transmission Unit. It specifies the largest packet size permitted for Internet transmission. The default setting is Auto. You should leave this value in the 1200 to 1500 range. To have the Router select the best MTU for your Internet connection, leave the default as Auto.

Network Setup

Network Setup changes the settings on the network connected to the Router’s Ethernet ports. Wireless Setup is performed through the Wireless tab.

Router IP

This presents both the Router’s IP Address and Subnet Mask as seen by your network.

Network Address Server Settings (DHCP)

The 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 and will automatically assign an IP address to each computer on your network. If you choose to enable the Router’s DHCP server option, your network PCs must connect to a DHCP server (the Router), and there cannot be any other DHCP server on your network.

DHCP Server. DHCP is enabled by factory default. If you already have a DHCP server on your network, or you don’t want a DHCP server, then select Disable (no other DHCP features will be available).

Starting IP Address. Enter a value for the DHCP server to start with when issuing IP addresses. Because the Router’s default IP address is 192.168.1.1, the Starting IP Address must be 192.168.1.2 or greater, but smaller than 192.168.1.253. The default Starting IP Address is 192.168.1.100.

Maximum Number of DHCP Users. 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.

Client Lease Time. 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 time is up, the user will be automatically assigned a new dynamic IP address. The default is 0 minutes, which means one day.

Static DNS (1-3). The Domain Name System (DNS) is how the Internet translates domain or website names into Internet addresses or URLs. Your ISP will provide you with at least one DNS Server IP Address. If you wish to use another, type that IP Address in one of these fields. You can type 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) manages each PC’s interaction with the Internet. If you use a WINS server, enter that server’s IP Address here. Otherwise, leave this blank.

Time Setting

Change the time zone in which your network functions from this pull-down menu. (You can even automatically

adjust for daylight savings time.)

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 with a DDNS service provider, www.dyndns.org or www.TZO.com. If you do not want to use this feature, keep the default setting, Disable. 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

DDNS Service. From this pull-down menu, enter the DDNS service with which you have membership.

User Name. Enter the User Name for your DDNS account

Password. Enter the Password for your DDNS account.

Host Name. The is the DDNS URL assigned by the DDNS service.

Internet IP Address. This is the Router’s current IP Address as seen on the Internet.

Status. This displays the status of the DDNS connection.

TZO.com

E-mail Address, TZO Key, and Domain Name. Enter the settings of the account you set up with TZO.

Internet IP Address. The Router’s Internet IP address is displayed here. Because it is dynamic, it will change.

Status. The status of the DDNS service connection is displayed here. Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.

The Setup Tab - MAC Address Clone

A MAC address is a 12-digit code assigned to a unique piece of hardware for identification. 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.

Enable/Disable. To have the MAC Address cloned, select Enable.

User Defined Entry. Enter the MAC Address registered with your ISP here. Figure 6-15: Setup Tab - MAC Address Clone

Clone Your PC’s MAC Address. Clicking this button will clone the MAC address.

Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.

The Setup Tab - Advanced Routing

This tab is used to set up the Router’s advanced functions. Operating Mode allows you to select the type(s) of advanced functions you use. Dynamic Routing will automatically adjust how packets travel on your network. Static Routing sets up a fixed route to another network destination.

Operating Mode. Select the mode in which this Router will function. If this Router is hosting your network’s connection to the Internet, select Gateway. If another Router exists on your network, select Router. When Router is chosen, the Dynamic Routing option will be available.

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 hops between the source and the destination. This feature is Disabled by default. From the drop-down menu, you can also select LAN & Wireless, which performs dynamic routing over your Ethernet and wireless networks. You can also select WAN, which performs dynamic routing with data coming from the Internet. Finally, selecting Both enables dynamic routing for both networks, as well as data from the Internet.

Static Routing. To set up a static route between the Router and another network, select a number from the Static Routing drop-down list. (A static route is a pre-determined pathway that network information must travel to reach a specific host or network.) Enter the information described below to set up a new static route. (Click the Delete This Entry button to delete a static route.)

Enter Route Name. Enter a name for the Route here, using a maximum of 25 alphanumeric characters.

Destination LAN IP. The Destination LAN IP is the address of the remote network or host to which you want to

assign a static route.

Subnet Mask. The Subnet Mask determines which portion of a Destination LAN IP address is the network

portion, and which portion is the host portion.

Default Gateway. This is the IP address of the gateway device that allows for contact between the Router and the remote network or host.

Interface. This interface tells you whether the Destination IP Address is on the LAN & Wireless (Ethernet and Figure 6-17: Setup Tab - Advanced Routing (Router)
wireless networks), the WAN (Internet), or Loopback (a dummy network in which one PC acts like a network—
necessary for certain software programs).
Click the Show Routing Table button to view the Static Routes you’ve already set up.
Change these settings as described here and click the Save Settings button to apply your changes or Cancel
Changes to cancel your changes.
Chapter 6: Configuring the Wireless-G Broadband Router 40
The Setup Tab - Advanced Routing

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 802.11g devices, select G-Only. If you have only 802.11b devices, select B-Only. If you do not have any 802.11g and 802.11b devices in your network, select Disable.

Wireless Network Name (SSID). The SSID is the network name shared among all devices in a wireless network. 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 devices 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.

Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.

IMPORTANT: If you are using WPA, always

remember that each device in your wireless The Wireless Security settings configure the security of your wireless network. There are four wireless security

The Wireless Tab - Wireless Security

network MUST use the same WPA method mode options supported by the Router: WPA Personal, WPA Enterprise, WPA2 Personal, WPA2 Enterprise, RADIUS, and shared key, or else the network will not and WEP. (WEP stands for Wired Equivalent Privacy, WPA stands for Wi-Fi Protected Access, which is a security function properly. standard stronger than WEP encryption. WPA2 is stronger than WPA. WPA Enterprise is WPA used in coordination with a RADIUS server. RADIUS stands for Remote Authentication Dial-In User Service.) These are briefly discussed here. For detailed instructions on configuring wireless security for the Router, turn to “Appendix B: Wireless Security.”

WPA Personal. WPA gives you two encryption methods, TKIP and AES, with dynamic encryption keys. Select the type of algorithm, TKIP or AES. Enter a WPA Shared Key of 8-63 characters. Then enter a Group Key Renewal period, which instructs the Router how often it should change the encryption keys.

WPA Enterprise. 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 the type of WPA algorithm you want to use, TKIP or AES. Enter the RADIUS server’s IP Address and port number, along with a key shared between the Router and the server. Last, enter a Key Renewal Timeout, which instructs the Router how often it should change the encryption keys.

WPA2 Personal. WPA2 gives you two encryption methods, TKIP and AES, with dynamic encryption keys. Select the type of algorithm, AES, or TKIP + AES. Enter a WPA Shared Key of 8-63 characters. Then enter a Group Key Renewal period, which instructs the Router how often it should change the encryption keys.

WPA2 Enterprise. This option features WPA2 used in coordination with a RADIUS server. (This should only be used when a RADIUS server is connected to the Router.) First, select the type of WPA algorithm you want to use, AES, or TKIP + AES. Enter the RADIUS server’s IP Address and port number, along with a key shared between the Router and the server. Last, enter a Key Renewal Timeout, which instructs the Router how often it should change the encryption keys.

RADIUS. This option features WEP used in coordination with a RADIUS server. (This should only be used when a RADIUS server is connected to the Router.) First, enter the RADIUS server’s IP Address and port number, along with a key shared between the Router and the server. Then, select a Default Transmit Key (choose which Key to use), and a level of WEP encryption, 64 bits 10 hex digits or 128 bits 26 hex digits. Last, either generate a WEP key using the Passphrase or enter the WEP key manually.

WEP. WEP is a basic encryption method, which is not as secure as WPA. To use WEP, select a Default Transmit Key (choose which Key to use), and a level of WEP encryption, 64 bits 10 hex digits or 128 bits 26 hex digits. Then either generate a WEP key using the Passphrase or enter the WEP key manually.

Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes. For detailed instructions on configuring wireless security for the Router, turn to “Appendix B: Wireless Security.”

IMPORTANT: If you are using WEP encryption, always remember that each device in your wireless network MUST use the same WEP encryption method and encryption key, or else your wireless network will not function properly.

The Wireless Tab - Wireless MAC Filter

Wireless access can be filtered by using the MAC addresses of the wireless devices transmitting within your network’s radius.

Wireless MAC Filter. To filter wireless users by MAC Address, either permitting or blocking access, click Enable. If you do not wish to filter users by MAC Address, select Disable.

Prevent. Clicking this button will block wireless access by MAC Address.

Permit Only. Clicking this button will allow wireless access by MAC Address.

Edit MAC Address Filter List. Clicking this button will open the MAC Address Filter List. On this screen, you can list users, by MAC Address, to whom you wish to provide or block access. For easy reference, click the Wireless Client MAC List button to display a list of network users by MAC Address.

Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.

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.

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.

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.

Transmission Rate. The rate of data transmission should be set depending 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.

CTS Protection Mode. CTS (Clear-To-Send) Protection Mode should remain disabled unless you are having severe problems with your Wireless-G products not being able to transmit to the Router in an environment with heavy 802.11b traffic. This function boosts the Router’s ability to catch all Wireless-G transmissions but will severely decrease performance.

Frame Burst. Enabling this option should provide your network with greater performance, depending on the manufacturer of your wireless products. If you are not sure how to use this option, keep the default, Disable.

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 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.

AP Isolation. This isolates all wireless clients and wireless devices on your network from each other. Wireless devices will be able to communicate with the Router but not with each other. To use this function, select On. AP Isolation is Off by default.

Secure Easy Setup. This feature allows you to enable or disable the SecureEasySetup feature. Select Disable to disable the feature and turn off the button’s light. The feature is enabled by default.

Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.

The Security Tab - Firewall

Firewall Protection. This feature employs Stateful Packet Inspection (SPI) for a more detailed review of data packets entering your network environment.

Block WAN Requests. Enable the Block WAN Request feature by checking the box beside Block Anonymous Internet Requests and you can prevent your network from being “pinged,” or detected, by other Internet users. The Block WAN Request feature also reinforces your network security by hiding your network ports. Both functions of the Block WAN Request feature make it more difficult for outside users to work their way into your network. This feature is enabled by default. Select 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.

Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.

The Security Tab - VPN Passthrough

Use the settings on this tab to allow VPN tunnels using IPSec, PPTP, or L2TP protocols to pass through the Router’s firewall.

IPSec Pass-through. Internet Protocol Security (IPSec) is a suite of protocols used to implement secure exchange of packets at the IP layer. To allow IPSec tunnels to pass through the Router, click Enable. IPSec Pass-Through is enabled by default.

PPTP Pass-through. Point-to-Point Tunneling Protocol (PPTP) allows the Point-to-Point Protocol (PPP) to be tunneled through an IP network. To allow PPTP tunnels to pass through the Router, click Enable. PPTP Pass-Through is enabled by default.

L2TP Pass-through. Layer 2 Tunneling Protocol is the method used to enable Point-to-Point sessions via the Internet on the Layer 2 level. To allow L2TP tunnels to pass through the Router, click Enable. L2TP Pass-Through is enabled by default.

Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.

The Access Restrictions Tab - Internet Access

The Internet Access screen allows you to block or allow specific kinds of Internet usage and traffic, such as Internet access, designated services, websites, and inbound traffic during specific days and times.

Internet Access Policy. Access can be managed by a policy. Use the settings on this screen to establish an access policy (after the Save Settings button is clicked). Selecting a policy from the drop-down menu will display that policy’s settings. To delete a policy, select that policy’s number and click the Delete button. To view all the policies, click the Summary button. (Policies can be deleted from the Summary screen by selecting the policy or policies and clicking the Delete button. To return to the Internet Access tab, click the Close button.)

Status. Policies are disabled by default. To enable a policy, select the policy number from the drop-down menu, and select Enable.

To create an Internet Access policy:

  1. Select a number from the Internet Access Policy drop-down menu.

  2. To enable this policy, select Enable.

  3. Enter a Policy Name in the field provided.

    1. Click the Edit List of PC’s button to select which PCs will be affected by the policy. The List of PCs screen will appear. You can select a PC by MAC Address or IP Address. You can also enter a range of IP Addresses if you want this policy to affect a group of PCs. After making your changes, click the Save Settings button to apply

    2. your changes or Cancel Changes to cancel your changes. Then click the Close button.
  4. Click the appropriate option, Deny or Allow, depending on whether you want to block or allow Internet access for the PCs you listed on the List of PCs screen.

  5. Decide which days and what times you want this policy to be enforced. Select the individual days during which the policy will be in effect, or select Everyday. Then enter a range of hours and minutes during which the policy will be in effect, or select 24 Hours.

Figure 6-31: Internet Policy Summary

Blocked Services You can filter access to various services accessed over the Internet, such as FTP or telnet, by selecting services from the drop-down menus next to Blocked Services. (You can block up to 20 services.) Then enter the range of ports you want to filter. If the service you want to block is not listed or you want to edit a service’s settings, then click the Add/ Edit Service button. Then the Port Services screen will appear. To add a service, enter the service’s name in the Service Name field. Select its protocol from the Protocol drop-down menu, and enter its range in the Port Range fields. Then click the Add button. To modify a service, select it from the list on the right. Change its name, protocol setting, or port range. Then click the Modify button. To delete a service, select it from the list on the right. Then click the Delete button. When you are finished making changes on the Port Services screen, click the Apply button to save

changes. If you want to cancel your changes, click the Cancel button. To close the Port Services screen and return to the Access Restrictions screen, click the Close button. Website Blocking by URL Address If you want to block websites with specific URL addresses, enter each URL in a separate field next to

Website Blocking by URL Address. Website Blocking by Keyword If you want to block websites using specific keywords, enter each keyword in a separate field next to

Website Blocking by Keyword. Click the Save Settings button to save the policy’s settings. To cancel the policy’s settings, click the Cancel Changes button.

The Applications and Gaming Tab - Port Range Forward

The Applications and Gaming Tab allows you to set 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.)

To forward a port, enter the information on each line for the criteria required. The criteria are described here. Application. In this field, enter the name you wish to give the application. Each name can be up to 12 characters. Start/End. This is the port range. Enter the number that starts the port range under Start and the number that

ends the range under End. Protocol. Enter the protocol used for this application, either TCP or UDP, or Both. IP Address. For each application, enter the IP Address of the PC running the specific application. Enable. Click the Enable checkbox to enable port forwarding for the relevant application. Change these settings as described here and click the Save Settings button to apply your changes or Cancel

Changes to cancel your changes.

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.

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. Enable. Click the Enable check box to enable port triggering for the relevant application. Change these settings as described here and click the Save Settings button to apply your changes or Cancel

Changes to cancel your changes.

The Applications and Gaming Tab - DMZ

The DMZ feature allows one network user to be exposed to the Internet for use of a special-purpose service such as Internet gaming or videoconferencing. DMZ hosting forwards all the ports at the same time to one PC. The Port Range Forward feature 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.

To expose one PC, select Enable. Then, enter the computer's IP address in the DMZ Host IP Address field.

Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.

The Applications and 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 videoconferencing and gaming.

Wired QoS

There are three types of QoS available, Device Priority, Ethernet Port Priority and Application Priority.

Enable/Disable. To enable Wired QoS, select Enable. Otherwise, select Disable.

Upstream Bandwidth. Select Auto or Manual from the drop-down menu. Manual allows you to specify the maximum outgoing bandwidth that applications can utilize.

Device Priority

Enter the name of your network device in the Device name field, select its priority from the drop-down menu and enter its MAC Address.

Ethernet Port Priority

Ethernet Port Priority QoS allows you to prioritize performance for four of the Router’s ports, LAN Ports 1-4. For each of these ports, select High or Low for Priority. The Router’s four ports have been assigned low priority by default. For Flow Control, if you want the Router to control the transmission of data between network devices, select Enable. To disable this feature, select Disable.

Ethernet Port Priority QoS does not require support from your ISP because the prioritized ports are LAN ports (1-4) in your network.

Application Port Priority

Application Port Priority 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 applications that you specify.

Optimize Gaming Applications. Check this box to automatically allow common game application ports to have a higher priority. These games include, but are not limited to: Counter-Strike, Half-Life, Age of Empires, Everquest, Quake2/Quake3 and Diablo II. The default setting is unchecked.

Application Name. Enter the name you wish to give the application.

Priority. Select High or Low to assign priority to the application.

Specific Port #. Enter the port number for the application.

Wireless QoS

WMM Support. Wi-Fi Multimedia (WMM), formerly known as Wireless Multimedia Extensions (WME), is a Wi-Fi Alliance certified feature, based on the IEEE 802.11e draft standard. This feature provides Quality of Service (QoS) to wireless networks. It is especially suitable for voice, music and video applications; for examples, Voice over IP (VoIP), video streaming and interactive gaming. If you have other devices on your wireless network that support WMM, select Enable. Otherwise, keep the default, Disable.

No Acknowledgement. If you want to disable the Router’s Acknowledgement feature, so that the Router will not re-send data if an error occurs select Enable. Otherwise, keep the default, Disable.

Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.

The Administration Tab - Management

This section of the Administration tab allows the network’s administrator to manage specific Router functions for access and security.

Local Router Access. You can change the Router’s password from here. Enter a new Router password and then type it again in the Re-enter to confirm field to confirm.

Web Access. HTTP (HyperText Transport Protocol) - The communications protocol used to connect to servers on the World Wide Web. HTTPS - Uses SSL (Secured Socket Layer) to encrypt data transmitted for higher security. Select HTTP or HTTPS. Wireless Access Web - If you are using your Wireless Router in a public domain where you are giving wireless access to your guests, you can disable wireless access to the router’s web-based utility. You will only be able to access the web-based utility via a wired connection if you disable the setting. Select Enable to enable wireless access to the Router’s web-based utility or Disable to disable wireless access to the utility.

Remote Router Access. To access the Router remotely, from outside the network, select Enable. Then, enter the port number that will be open to outside access. You will need to enter the Router’s password when accessing the Router this way, as usual.

UPnP. Select Enable to use the UPnP feature, select Disable otherwise. The default setting is Enable.

Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.

The Administration Tab - Log

The Router can keep logs of all traffic for your Internet connection. To disable the Log function, keep the default setting, Disable. To monitor traffic between the network and the Internet, select Enable. When you wish to view the logs, click Incoming Log or Outgoing Log, depending on which you wish to view.

Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.

The Administration Tab - Diagnostics

The diagnostic tests (Ping and Traceroute) allow you to check the connections of your network components.

Ping Test. The Ping test will check the status of a connection. Click the Ping button to open the Ping Test screen. Enter the address of the PC whose connection you wish to test and how many times you wish to test it. Then, click the Ping button. The Ping Test screen will then display the test results. To stop the test, click the Stop button. Click the Clear Log button to clear the screen. Click the Close button to return to the Diagnostics screen.

Traceroute Test. To test the performance of a connect, click the Traceroute button. Enter the address of the PC whose connection you wish to test and click the Traceroute button. The Traceroute screen will then display the

test results. To stop the test, click the Stop button. Click the Clear Log button to clear the screen. Click the Close button to return to the Diagnostics screen.

The Administration Tab - Factory Defaults

Select the Yes button and then click the Save Settings button to reset all configuration settings to their default values. Any settings you have saved will be lost when the default settings are restored.

The Administration Tab - Firmware Upgrade

Firmware can be upgraded by clicking the Upgrade button after browsing for the firmware, which you can download from the Linksys website. Do not upgrade your firmware unless you are experiencing problems with the Router. For more information about upgrading firmware, refer to “Appendix C: Upgrading Firmware”.

The Administration Tab - Config Management

This screen is used to back up or restore the Router’s configuration file. 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.

The Status Tab - Router

The Router screen on the Status Tab displays the Router’s current status. Firmware Version. This is the Router’s current firmware. Current Time. This shows the time, as you set on the Setup Tab. MAC Address. This is the Router’s MAC Address, as seen by your ISP. Router Name. This is the specific name for the Router, which you set on the Setup Tab. Host Name. If required by your ISP, this would have been entered on the Setup Tab. Domain Name. If required by your ISP, this would have been entered on the Setup Tab. Configuration Type. This section shows the current network information stored in the router. Information being

shown depends on the Internet Connection type you had entered under th