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®
A Division of Cisco Systems, Inc.
GHz
2.4
802.11g
Wireless-G
Broadband Router
User Guide
WIRELESS
with SRX400
Model No.
WRT54GX4
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Wireless-G Broadband Router with SRX400 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 Califor
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Wireless-G Broadband Router with SRX400 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 with SRX400 6 The Router’s Ports and Reset Button 6 The Router’s LEDs 7 Chapter 4: Connecting the Wireless-G Broadband Router with SRX400 8 Overview 8 Hardware Installation for Connection to Your Broadband M
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Wireless-G Broadband Router with SRX400 The Administration Tab - Diagnostics 37 The Administration Tab - Factory Defaults 38 The Administration Tab - Firmware Upgrade 38 The Administration Tab - Config Management 39 The Status Tab - Router 40 The Status Tab - Local Network 41 The Status Tab - Wireless 42 The Status Tab - System Performance 43 Appendix A: Troubleshooting 45 Common Problems and Solutions 45 Frequently Asked Questions 53 Appendix B: Wireless Security 60 Security Precautions 60 Secu
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Wireless-G Broadband Router with SRX400 List of Figures Figure 3-1: The Router’s Side Panel 6 Figure 3-2: The Router’s LEDs 7 Figure 4-1: Connect a PC 8 Figure 4-2: Connect the Modem 8 Figure 4-3: Connect the Power 8 Figure 4-4: Router’s Stand 9 Figure 4-5: Wall-Mount Measurements 9 Figure 5-1: Password Screen 10 Figure 5-2: Setup Tab - Basic Setup 11 Figure 5-3: DHCP Connection Type 11 Figure 5-4: Static IP Connection Type 12 Figure 5-5: PPPoE Connection Type 12 Figure 5-6: PPTP Connection Type
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Wireless-G Broadband Router with SRX400 Figure 5-24: Security Tab - Firewall 26 Figure 5-25: Access Restrictions Tab - Internet Access 27 Figure 5-26: Internet Policy Summary 27 Figure 5-27: List of PCs 28 Figure 5-28: Port Services 28 Figure 5-29: Applications and Gaming Tab - Port Range Forward 29 Figure 5-30: Applications and Gaming Tab - Port Triggering 30 Figure 5-31: Applications and Gaming Tab - DMZ 30 Figure 5-32: Applications and Gaming Tab - QoS (Add a New Application 31 Figure 5-33: Q
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Wireless-G Broadband Router with SRX400 Chapter 1: Introduction Welcome Thank you for choosing the Linksys Wireless-G Broadband Router with SRX400. The Router will allow you to network wirelessly better than ever, sharing Internet access, files and fun, easily and securely. How does the Router do all of this? A router is a device that allows access to an Internet connection over a network. When you use the Router, this access can be shared over the four switched ports or via the wireless mbps
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Wireless-G Broadband Router with SRX400 PCs on a wired network create a 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. The Router bridges wireless networks of both 802.11b and 802.11g standards and wired networks, allowing them to communicate wit
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Wireless-G Broadband Router with SRX400 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 Router’s firmware 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 Addr
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Wireless-G Broadband Router with SRX400 Chapter 2: Planning Your Wireless Network Network Topology network: a series of computers or devices A wireless local area network is exactly like a regular local area network (LAN), except that each computer in the connected for the purpose of data sharing, wireless network uses a wireless device to connect to the network. Computers in a wireless network share the storage, and/or transmission between users. same frequency channel and SSID, which is an
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Wireless-G Broadband Router with SRX400 The Wireless-G Broadband Router is compatible with all 802.11b and 802.11g adapters, such as the notebook adapters for your laptop computers, PCI adapters for your desktop PCs, and USB adapters when you want to enjoy USB connectivity. The Router will also communicate with the Wireless-G PrintServer, as well as 802.11b and 802.11g wireless Ethernet bridges. When you wish to connect your wireless network with your wired network, you can use the Wireless-G
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Wireless-G Broadband Router with SRX400 Chapter 3: Getting to Know the Wireless-G Broadband Router with SRX400 The Router’s Ports and Reset Button The Router's ports and Reset button are located on one of the side panels. port: the connection point on a computer or networking device used for plugging in cables or adapters Figure 3-1: The Router’s Side Panel ETHERNET 1, 2, 3, 4 Color-coded yellow, these ports connect the Router to PCs and other Ethernet devices on your network. broadband: an a
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Wireless-G Broadband Router with SRX400 The Router’s LEDs The Router’s LEDs, which displays information about network activity, are located on another side panel. Figure 3-2: The Router’s LEDs 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. ETHERNET 1, 2, 3, 4 Green. These numbered LEDs, correspondin
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Wireless-G Broadband Router with SRX400 Chapter 4: Connecting the Wireless-G Broadband Router with SRX400 Overview Linksys recommends using the Setup Wizard on the Setup CD-ROM for first-time installation of the Router. For advanced users, you may follow the instructions in this chapter, and then configure the Router through its Web- based Utility (refer to “Chapter 5: Configuring the Wireless-G Broadband Router”). Hardware Installation for Connection to Your Broadband Modem 1. Power down your
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Wireless-G Broadband Router with SRX400 Placement Options There are three ways to place the Router. The first way is to place it horizontally on a surface, so it sits on its four rubber feet. The second way is to stand the Router vertically on a surface (this uses a stand). The third way is to mount it on a wall. The second and third options are explained in further detail below. Stand Option Figure 4-4: Router’s Stand 1. Line up the center of the Router’s stand with the center of the Router’s
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Wireless-G Broadband Router with SRX400 Chapter 5: Configuring the Wireless-G Broadband Router Overview You should always use the Setup CD-ROM when first installing the Router. If you do not wish to run the Setup NOTE: When first installing the Router, you should Wizard on the Setup CD-ROM, you can use the Web-based Utility to configure the Router. For advanced users, you use the Setup Wizard on the Setup CD-ROM. If you may configure the Router’s advanced settings through the Web-based Utili
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Wireless-G Broadband Router with SRX400 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 C
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Wireless-G Broadband Router with SRX400 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
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Wireless-G Broadband Router with SRX400 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
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Wireless-G Broadband Router with SRX400 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 and Domain Name. These fields allow you to supply a host and domain name for the Router. Some Figure 5-8: Optional Settings ISPs, usually cable ISPs, require these names as identification. You may have to check with your ISP to see if
