® A Division of Cisco Systems, Inc. 2.4 GHz Wireless-G 802.11g Broadband Router WIRELESS Model No. User Guide WRT54GL Wireless-G Broadband Router Copyright and Trademarks Specifications are subject to change without notice. Linksys is a registered trademark or trademark of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries. Copyright © 2005 Cisco Systems, Inc. All rights reserved. Other brands and product names are trademarks or registered trademarks of their respective holders. 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-50921 KL Wireless-G Broadband Router Table of Contents Chapter 1: Introduction Welcome What's in this User Guide? 1 1 2 Chapter 2: Planning Your Wireless Network Network Topology Ad-Hoc versus Infrastructure Mode Network Layout 4 4 4 4 Chapter 3: Getting to Know the Wireless-G Broadband Router The Back Panel The Front Panel 6 6 7 Chapter 4: Connecting the Wireless-G Broadband Router Overview Hardware Installation for Connection to Your Broadband Modem Hardware Installation for Connection to Another Router 8 8 8 10 Chapter 5: Setting up the Wireless-G Broadband Router Overview Using the Setup Wizard Using SecureEasySetup to Configure Your Notebook 12 12 12 29 Chapter 6: Configuring the Wireless-G Broadband Router Overview 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 MAC Filter The Wireless Tab - Advanced Wireless Settings The Security Tab - Firewall The Security Tab - VPN Passthrough The Access Restrictions Tab - Internet Access The Applications and Gaming Tab - Port Range Forward 32 32 33 37 38 39 40 41 44 45 47 47 48 50 Wireless-G Broadband Router The Applications & Gaming Tab - Port Triggering The Applications and Gaming Tab - DMZ The Applications and Gaming Tab - QoS The Administration Tab - Management The Administration Tab - Log The Administration Tab - Diagnostics The Administration Tab - Factory Defaults The Administration Tab - Firmware Upgrade The Administration Tab - Config Management The Status Tab - Router The Status Tab - Local Network The Status Tab - Wireless 51 52 52 54 54 55 56 56 56 57 58 59 Appendix A: Troubleshooting Common Problems and Solutions Frequently Asked Questions 60 60 68 Appendix B: Wireless Security Security Precautions Security Threats Facing Wireless Networks 75 75 75 Appendix C: Upgrading Firmware 78 Appendix D: Windows Help 79 Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter 80 Windows 98SE or Me Instructions Windows 2000 or XP Instructions For the Router's Web-based Utility 80 80 81 Appendix F: Glossary Appendix G: Specifications Appendix H: Warranty Information Appendix I: Regulatory Information Appendix J: Contact Information 82 89 91 92 94 Wireless-G Broadband Router List of Figures Figure 3-1: The Router's Back Panel Figure 3-2: The Router's Front Panel Figure 4-1: Connecting Your Internet Connection Figure 4-2: Connecting Your Network Devices Figure 4-3: Connecting the Power Figure 4-4: Diagram for Connection to Another Router Figure 4-5: Connecting Another Router Figure 4-6: Connecting Your Network Devices Figure 4-7: Connecting the Power Figure 5-1: Setup Wizard's Welcome - Language Selection Screen Figure 5-2: Setup Wizard's Welcome - Start Wizard Screen Figure 5-3: Setup Wizard's License Agreement Screen Figure 5-4: Setup Wizard's Disconnect the Modem from the PC Screen Figure 5-5: Setup Wizard's Connect the Modem to the Router Screen Figure 5-6: Setup Wizard's Connect a Network Cable to a PC Screen Figure 5-7: Setup Wizard's Connect the Network Cable to the Router Screen Figure 5-8: Setup Wizard's Power on the Router Screen Figure 5-9: Setup Wizard's Check the Router's Status Screen Figure 5-10: Setup Wizard's Configure Cable or DHCP Settings Screen Figure 5-11: Setup Wizard's Configure DSL (PPPoE) Settings Screen Figure 5-12: Setup Wizard's Advanced Internet Settings - Static IP Screen Figure 5-13: Setup Wizard's Advanced Internet Settings - PPTP Screen Figure 5-14: Setup Wizard's Keep Alive/Connect on Demand (PPTP Continued) Screen Figure 5-15: Setup Wizard's Advanced Internet Settings - L2TP Screen Figure 5-16: Setup Wizard's Advanced Internet Settings - Telstra Screen Figure 5-17: Setup Wizard's Set the Router's Password Screen Figure 5-18: Setup Wizard's Configure Wireless Settings Screen Figure 5-19: Setup Wizard's SecureEasySetup Screen Figure 5-20: SecureEasySetup Logo Figure 5-21: Additional Information - Hardware Button Figure 5-22: Additional Information - Software Button 6 7 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 20 21 21 22 22 22 22 Wireless-G Broadband Router Figure 5-23: Setup Wizard's Configure Wireless Settings Screen Figure 5-24: Setup Wizard's Confirm New Settings Screen Figure 5-25: Setup Wizard's Safe Surfing Screen Figure 5-26: Setup Wizard's Congratulations Screen Figure 5-27: Setup Wizard's Configure Wireless Settings Screen Figure 5-28: Setup Wizard's Wireless Settings Screen Figure 5-29: Setup Wizard's Wireless Security - WPA-PSK Screen Figure 5-30: Setup Wizard's Wireless Security - WEP (64-Bit) Screen Figure 5-32: Setup Wizard's Confirm New Settings Screen Figure 5-31: Setup Wizard's Norton Screen Figure 5-33: Setup Wizard's Congratulations Screen Figure 5-34: Setup Wizard's Welcome - Start Wizard Screen Figure 5-35: SecureEasySetup Welcome Screen Figure 5-36: Configure Wireless Settings #1 Screen Figure 5-37: Configure Wireless Settings #2 Screen Figure 5-38: Your Wireless Settings Screen Figure 6-1: Password Screen Figure 6-2: Setup Tab - Basic Setup Figure 6-3: DHCP Connection Type Figure 6-4: Static IP Connection Type Figure 6-5: PPPoE Connection Type Figure 6-6: PPTP Connection Type Figure 6-7: HeartBeat Signal Connection Type Figure 6-8: Optional Settings Figure 6-9: Router IP Figure 6-10: Network Address Server Settings Figure 6-11: Time Setting Figure 6-12: Setup Tab - DDNS Figure 6-13: Setup Tab - MAC Address Clone Figure 6-14: Setup Tab - Advanced Routing (Gateway) Figure 6-15: Setup Tab - Advanced Routing (Router) Figure 6-16: Wireless Tab - Basic Wireless Settings Figure 6-17: Wireless Tab - Wireless Security (WPA Personal) Figure 6-18: Wireless Tab - Wireless Security (WPA Enterprise) 23 23 24 24 25 25 26 27 27 28 28 29 29 30 30 31 32 33 33 33 34 34 35 35 36 36 36 37 38 39 39 40 41 41 Wireless-G Broadband Router Figure 6-19: Wireless Tab - Wireless Security (WPA2 Personal) Figure 6-20: Wireless Tab - Wireless Security (WPA2 Enterprise) Figure 6-21: Wireless Tab - Wireless Security (RADIUS) Figure 6-22: Wireless Tab - Wireless Security (WEP) Figure 6-23: Wireless Tab - Wireless MAC Filter Figure 6-24: MAC Address Filter List Figure 6-25: Wireless Tab - Advanced Wireless Settings Figure 6-26: Security Tab - Firewall Figure 6-27: Security Tab - VPN Passthrough Figure 6-28: Access Restrictions Tab - Internet Access Figure 6-29: Internet Policy Summary Figure 6-30: List of PCs Figure 6-31: Port Services Figure 6-32: Access Restrictions Tab - Inbound Traffic Figure 6-33: Applications and Gaming Tab - Port Range Forward Figure 6-34: Applications and Gaming Tab - Port Triggering Figure 6-35: Applications and Gaming Tab - DMZ Figure 6-36: Applications and Gaming Tab - QOS Figure 6-37: Administration Tab - Management Figure 6-38: Administration Tab - Log Figure 6-39: Administration Tab - Diagnostics Figure 6-40: The Ping Test Figure 6-41: The Traceroute Test Figure 6-42: Administration Tab - Factory Defaults Figure 6-43: Administration Tab - Firmware Upgrade Figure 6-44: Administration Tab - Config Management Figure 6-45: Status Tab - Router Figure 6-46: Status Tab - Local Network Figure 6-47: DHCP Clients Table Figure 6-48: Status Tab - Wireless Figure C-1: Upgrade Firmware Figure E-1: IP Configuration Screen Figure E-2: MAC Address/Adapter Address Figure E-3: MAC Address/Physical Address Figure E-4: MAC Address Filter List 42 42 43 43 44 44 45 47 47 48 48 48 49 49 50 51 52 52 54 54 55 55 55 56 56 56 57 58 58 59 78 80 80 80 81 Wireless-G Broadband Router Figure E-5: MAC Address Clone 81 Wireless-G Broadband Router 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 or 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 SecureEasySetupTM 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. Chapter 1: Introduction Welcome 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 address translation): 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. 1 Wireless-G Broadband Router What's in this User Guide? This user guide covers the steps for setting up and using the Wireless-G Broadband Router. · Chapter 1: Introduction This chapter describes the Router's applications and thi ...