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®
A Division of Cisco Systems, Inc.
GHz
2.4
802.11g
Wireless-G
Broadband Router
User Guide
WIRELESS
with SRX
Model No.
WRT54GX
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Wireless-G Broadband Router with SRX 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
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Wireless-G Broadband Router with SRX Table of Contents Chapter 1: Introduction 1 Welcome 1 What’s in this 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 Chapter 5: Configuring the Wireless-G Broad
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Wireless-G Broadband Router with SRX The Administration Tab - Factory Defaults 30 The Administration Tab - Firmware Upgrade 30 The Administration Tab - Config Management 31 The Status Tab - Router 31 The Status Tab - Local Network 32 The Status Tab - Wireless 33 The Status Tab - System Performance 34 Appendix A: Troubleshooting 36 Common Problems and Solutions 36 Frequently Asked Questions 45 Appendix B: Wireless Security 51 Security Precautions 51 Security Threats Facing Wireless Networks 51 Ap
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Wireless-G Broadband Router with SRX List of Figures Figure 3-1: The Router’s Back Panel 6 Figure 3-2: The Router’s Reset Button 6 Figure 3-3: The Router’s LEDs 7 Figure 4-1: The Router’s Ports 8 Figure 5-1: Password Screen 9 Figure 5-2: Setup Tab - Basic Setup 10 Figure 5-3: DHCP Connection Type 10 Figure 5-4: Static IP Connection Type 11 Figure 5-5: PPPoE Connection Type 11 Figure 5-6: PPTP Connection Type 12 Figure 5-7: Telstra BigPond Connection Type 12 Figure 5-8: Optional Settings 13 Figur
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Wireless-G Broadband Router with SRX Figure 5-27: Port Services 25 Figure 5-28: Applications and Gaming Tab - Port Range Forward 26 Figure 5-29: Applications and Gaming Tab - Port Triggering 26 Figure 5-30: Applications and Gaming Tab - DMZ 27 Figure 5-31: Applications and Gaming Tab - UPnP Forwarding 27 Figure 5-32: Administration Tab - Management 28 Figure 5-33: Administration Tab - Log 29 Figure 5-34: Administration Tab - Diagnostics 29 Figure 5-35: Administration Tab - Factory Defaults 30 Fi
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Wireless-G Broadband Router with SRX Chapter 1: Introduction Welcome Thank you for choosing the Linksys Wireless-G Broadband Router with SRX. The Wireless-G Broadband Router with SRX 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 with SRX 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 with SRX, thi
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Wireless-G Broadband Router with SRX What’s in this Guide? This user guide covers the steps for setting up and using the Wireless-G Broadband Router with SRX. 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 Router’s physical features. Chapter 4: Connecting the
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Wireless-G Broadband Router with SRX Appendix H: Warranty Information This appendix supplies the Router’s warranty information. Appendix I: Regulatory Information This appendix supplies the Router’s regulatory information. Appendix J: Contact Information This appendix provides contact information for a variety of Linksys resources, including Technical Support. Chapter 1: Introduction 3 What’s in this Guide?
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Wireless-G Broadband Router with SRX Chapter 2: Planning Your Wireless Network Network Topology network: a series of computers or devices connected for the purpose of data sharing, A wireless local area network is exactly like a regular local area network (LAN), except that each computer in the storage, and/or transmission between users. 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 id
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Wireless-G Broadband Router with SRX 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 Router will also communicate with the Wireless PrintServer (WPS54GU2, WPS11) and Wireless Ethernet Bridges (WET54G, WET11). When you wish to connect your wireless network wit
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Wireless-G Broadband Router with SRX 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 located on the bottom of the Router, for approximately five seconds, or Figure 3-2: The Router’s Reset Button restore the defaults from the Administration tab - Factory Defaults in the Router's
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Wireless-G Broadband Router with SRX The Front Panel The Router’s LEDs, where information about network activity is displayed, are located on the front panel. 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 po Internet Green. The Internet LED lights up when there is a connection made through the Internet port.rt. A flashing
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Wireless-G Broadband Router with SRX 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, follow the instructions in “Connecting One Router to Another.” Hardware Installation for
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Wireless-G Broadband Router with SRX Chapter 5: Configuring the Wireless-G Broadband Router NOTE: When first installing the Router, you should use the Setup Wizard on the Setup CD-ROM. If you Overview want to configure advanced settings, use this chapter to learn about the Web-based Utility. You should always use the Setup CD-ROM when first installing the Router. If you do not wish to run the Setup Wizard on the Setup CD-ROM, you can use the Web-based Utility to configure the Router. For ad
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Wireless-G Broadband Router with SRX 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 Choo
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Wireless-G Broadband Router with SRX 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 Ga
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Wireless-G Broadband Router with SRX 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
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Wireless-G Broadband Router with SRX 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, Figure 5-8: Optional Settings usually cable ISPs, require these names as identification. You may have to check with your ISP to see if your
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Wireless-G Broadband Router with SRX 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. A DHCP server automatically assigns an IP address to each computer on your network. If you choose to enable the Router’s DHCP server option, you must configure all of your network PCs to connect to a DHCP server (the Router), and make sure there is no ot