® A Division of Cisco Systems, Inc. 2.4 GHz Wireless-G 802.11g Broadband Router WIRELESS Model No. User Guide WRK54G v1.1 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". WRK54G-UG-41115A KL Wireless-G Broadband Router Table of Contents Chapter 1: Introduction Welcome What's in this Guide? 1 1 2 Chapter 2: Planning Your Wireless Network Network Topology Ad-Hoc versus Infrastructure Mode Network Layout 4 4 4 5 Chapter 3: Getting to Know the Wireless-G Broadband Router The Back The Front Panel 6 6 7 Chapter 4: Connecting the Wireless-G Broadband Router Hardware Installation for Connection to the Broadband Router 8 8 Chapter 5: 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 Network Access The Wireless Tab - Advanced Wireless Settings The Security Tab - Filter The Security Tab - VPN Passthrough The Applications and Gaming Tab - Port Range Forwarding The Applications and Gaming Tab - Port Triggering The Applications and Gaming Tab - UPnP Forwarding The Applications and Gaming Tab - DMZ The Applications & Gaming Tab - QoS The Administration Tab - Management The Administration Tab - Log The Administration Tab - Factory Defaults 10 10 11 16 17 18 19 20 22 23 25 26 27 28 28 29 30 32 33 34 Wireless-G Broadband Router The Administration Tab - Firmware Upgrade The Status Tab - Router The Status Tab - Local Network The Status Tab - Wireless 34 35 36 36 Appendix A: Troubleshooting Common Problems and Solutions Frequently Asked Questions 37 37 45 Appendix B: Wireless Security Security Precautions Security Threats Facing Wireless Networks 51 51 51 Appendix C: Upgrading Firmware 54 Appendix D: Windows Help 55 Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter 56 Windows 98SE or Me Instructions Windows 2000 or XP Instructions For the Router's Web-based Utility 56 57 57 Appendix F: Glossary Appendix G: Specifications Appendix H: Warranty Information Appendix I: Regulatory Information Appendix J: Contact Information 58 65 67 68 70 Wireless-G Broadband Router List of Figures Figure 3-1: The Broadband Router's Back Panel Figure 3-2: The Broadband 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 5-1: Password Screen Figure 5-2: Setup Tab - Basic Setup Figure 5-3: Static IP Connection Type Figure 5-4: PPPoE Connection Type Figure 5-5: PPPoE Connection Type Figure 5-6: PPTP Connection Type Figure 5-7: HeartBeat Signal Connection Type Figure 5-8: L2TP Connection Type Figure 5-9: Optional Settings Figure 5-10: Router IP Figure 5-11: Network Address Server Settings Figure 5-12: Time Setting Figure 5-13: Setup Tab - DDNS Figure 5-14: Setup Tab - TZO Figure 5-15: Setup Tab - MAC Address Clone Figure 5-16: Setup Tab - Advanced Routing Figure 5-17: Setup Tab - Routing Table Figure 5-18: Wireless Tab - Basic Wireless Figure 5-19: Wireless Tab - Wireless Security (WPA Pre-Shared Key) Figure 5-20: Wireless Tab - Wireless Security (WPA RADIUS) Figure 5-21: Wireless Tab - Wireless Security (WEP) Figure 5-22: Wireless Tab - Wireless Network Access Figure 5-23: Wireless Client MAC List Figure 5-24: Wireless Tab - Advanced Wireless Settings Figure 5-25: Security Tab - Filter 6 7 8 9 9 10 11 11 12 12 12 13 13 14 14 15 15 16 16 17 18 19 19 20 20 21 22 22 23 25 Wireless-G Broadband Router Figure 5-26: List of PCs Figure 5-27: Security Tab - VPN Passthrough Figure 5-28: Applications and Gaming Tab - Port Range Forward Figure 5-29: Applications and Gaming Tab - Port Triggering Figure 5-30: Applications and Gaming Tab - UPnP Forwarding Figure 5-31: Applications and Gaming Tab - DMZ Figure 5-32: Applications and Gaming Tab - DMZ Figure 5-33: Administration Tab - Management Figure 5-34: Backup and Restore Configuration Figure 5-35: Administration Tab - Log Figure 5-36: The Administration Tab - Factory Defaults Figure 5-37: Administration Tab - Firmware Upgrade Figure 5-38: Status Tab - Router Figure 5-39: Status Tab - Local Network Figure 5-40: DHCP Client Table Figure 5-41: 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 Figure E-5: MAC Address Clone 25 26 27 28 28 29 30 32 32 33 34 34 35 36 36 36 54 56 56 56 57 57 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 either 11Mbps for Wireless-B or 54Mbps for Wireless-G. In addition, the WPA standard provides greater security opportunities while the whole network is protected through a NAT technology. All of these security features, as well as full configurability, are accessed through the easy-touse 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 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. 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. When you first install the Router, you should use the Setup CD-ROM to make sure all settings are correct. 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 1 Wireless-G Broadband Router What's in this 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 this User Guide. · Chapter 2: Planning Your Wireless Network This chapter describes the basics of wireless networking. · Chapter 3: Getting to Know the Wireless-G Broadband Router This chapter describes the physical features of the Router. · Chapter 4: Connecting the Wireless-G Broadband Router This chapter instructs you on how to connect the Router to your network. · Chapter 5: Configuring the Wireless-G Broadband Router This chapter explains how to use the Web-Based Utility to configure the settings on the Wireless-G Broadband Router. · Appendix A: Troubleshooting This appendix describes some problems and solutions, as well as frequently asked questions, regarding installation and use of the Wireless-G Broadband Router. · Appendix B: Wireless Security This appendix explains the risks of wireless networking and some solutions to reduce the risks. · Appendix C: Upgrading Firmware This appendix instructs you on how to upgrade the firmware on the Router should you need to do so. · Appendix D: Windows Help This appendix describes how you can use Windows Help for instructions about networking, such as installing the TCP/IP protocol. · Appendix E: Finding the MAC Address and IP Address for your Ethernet Adapter. This appendix describes how to find the MAC address for your computer's Ethernet adapter so you can use the MAC filtering and/or MAC address cloning feature of the Router. · Appendix F: Glossary This appendix gives a brief glossary of terms frequently used in networking. Chapter 1: Introduction What's in this Guide? 2 Wireless-G Broadband Router · Appendix G: Specifications This appendix provides the technical specifications for the Router. · Appendix H: Warranty Information This appendix supplies the warranty information for the Router. · Appendix I: Regulatory Information This appendix supplies the regulatory information regarding the Router. · Appendix J: Contact Information This appendix provides contact information for a variety of Linksys resources, including Technical Support. Chapter 1: Introduction What's in this Guide? 3 Wireless-G Broadband Router Chapter 2: Planning Your Wireless Network Network Topology A wireless network is exactly like a regular local network, except that each computer in your wireless network uses a wireless device to connect to the network. Computers in a wireless network share the same frequency channel and SSID, which is an identification name shared by the wireless devices belonging to the same wireless network. SSID: your wireless network's name. 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 wireless network and wired network 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 c ...