Linksys WRT54GX4 manual Introduction, Welcome

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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 network.

The Wireless-G Broadband Router with SRX400 combines smart antenna technology with standards-based Wireless-G (802.11g) networking. By overlaying the signals of two Wireless-G compatible radios, the “Multiple In, Multiple Out” (MIMO) technology effectively doubles the data rate. Unlike ordinary wireless networking technologies that are confused by signal reflections, MIMO actually uses these reflections to increase the range and reduce “dead spots” in the wireless coverage area. The robust signal travels farther, maintaining wireless connections up to 3 times farther than standard Wireless-G.

With SRX, the farther away you are, the more speed advantage you get, and SRX400 works great with standard Wireless-G and -B equipment, and other flavors of Linksys SRX. But when both ends of the wireless link are SRX400, the router can increase the throughput even more by using twice as much radio band, yielding speeds up to 10 times as fast as standard Wireless-G. But unlike other speed-enhanced technologies, SRX400 can dynamically enable this double-speed mode for SRX400 devices, while still connecting to non-SRX400 wireless devices at their respective fastest speeds. And SRX400 is a “good neighbor”, always checking for other wireless devices in the area before gobbling up the radio band.

In addition, the Router can encode all wireless transmissions with industrial-strength WPA encryption to help protect your data and privacy. The whole network is protected by a Stateful Packet Inspection (SPI) firewall and NAT technology. All of these security features, as well as full configurability, are accessed 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.

mbps: one million bits per second; a unit of measurement for data transmission

browser: an application program that provides a way to look at and interact with all the information on the World Wide Web.

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

802.11b: an IEEE wireless networking standard that specifies a maximum data transfer rate of 11Mbps and an operating frequency of 2.4GHz.

802.11g: an IEEE wireless networking standard that specifies a maximum data transfer rate of 54Mbps, an operating frequency of 2.4GHz, and backward compatibility with 802.11b devices.

Chapter 1: Introduction

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Welcome

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Contents Wireless- G Copyright and Trademarks How to Use This User GuideWord definition Table of Contents Appendix C Upgrading Firmware Appendix D Windows Help Appendix a TroubleshootingAppendix B Wireless Security Common Problems and Solutions Frequently Asked QuestionsConnect a PC Router’s Side Panel24 Security Tab Firewall Welcome IntroductionWhat’s in this Guide? Wireless-G Broadband Router with SRX400 Network Topology Planning Your Wireless NetworkAd-Hoc versus Infrastructure Mode Ssid your wireless network’s namePlanning Your Wireless Network Network Layout Router’s Ports and Reset Button Getting to Know the Wireless-G Broadband Router with SRX400Broadband an always-on, fast Internet connection Router’s LEDs PowerOverview Connecting the Wireless-G Broadband Router with SRX400Stand Option Placement OptionsWall-Mount Option Isp your internet provider Configuring the Wireless-G Broadband RouterInternet Setup Setup Tab Basic SetupInternet Connection Type Static IP Connection Type Pptp Connection Type Packet a unit of data sent over a network Network SetupOptional Settings Router IPTime Setting Network Address Server Settings DhcpDdns Setup Tab DdnsMac address the unique address that a Setup Tab MAC Address CloneDynamic Routing Setup Tab Advanced RoutingNAT Mode Advanced Routing16 Setup Tab Advanced Routing NAT Mode Routing Table Wireless Network Wireless Tab Basic Wireless SettingsWireless Security Wireless Tab Wireless SecurityEncryption encoding data transmitted in a network 20 Wireless Tab Wireless Security WEP Wireless MAC Filter Wireless Tab Wireless MAC FilterAdvanced Wireless Wireless Tab Advanced Wireless SettingsWireless-G Broadband Router with SRX400 Block WAN Request Security Tab FirewallFirewall VPN Pass ThroughInternet Access Access Restrictions Tab Internet AccessTo create an Internet Access policy Url the address of a file located on the Internet Ftp a protocol used to transfer files over a TCP/IP networkPort Range Forward Applications and Gaming Tab Port Range ForwardPort Range Triggered Range and Forwarded Range Applications and Gaming Tab Port TriggeringApplications and Gaming Tab DMZ Port TriggeringApplications and Gaming Tab QoS QoS Quality of ServiceWireless Internet Access PriorityPort Range SummaryCancel Changes button Https Web Access Administration Tab ManagementRouter Password Local Router AccessMulticast UPnPDoS Log Administration Tab LogSystem Log URL Filter LogPing Parameters Administration Tab DiagnosticsPing Test Traceroute TestUpgrade Firmware Administration Tab Factory DefaultsAdministration Tab Firmware Upgrade Factory DefaultsBackup Configuration Administration Tab Config ManagementRestore Configuration Router Information Status Tab RouterInternet Connection Local Network Status Tab Local NetworkWireless Status Tab WirelessStatus Tab System Performance Internet/WirelessSystem Performance Wireless-G Broadband Router with SRX400 Common Problems and Solutions Appendix a TroubleshootingNeed to set a static IP address on a PC For Windows 98SE, Me, 2000, and XP Open a command prompt. For Windows 98SE and Me TCP Application Start and End Protocol IP Address EnabledCan’t get the Internet game, server, or application to work Wireless-G Broadband Router with SRX400 My DSL service’s PPPoE is always disconnecting To start over, I need to set the Router to factory defaultMy power LED will not stop flashing Need to upgrade the firmwareCannot connect to the Internet My wireless-G speed seems to be slowIs IPSec Pass-Through supported by the Router? Frequently Asked QuestionsWhere is the Router installed on the network? How do I turn on SRX on my router?How can I block corrupted FTP downloads? Does the Router support ICQ send file?What is DMZ Hosting? Is the Router cross-platform compatible? What are the advanced features of the Router?What is the Ieee 802.11g standard? What is the Ieee 802.11b standard?What is infrastructure mode? What Ieee 802.11g features are supported?What Ieee 802.11b features are supported? What is ad-hoc mode?What is WEP? What is ISM band?What is Spread Spectrum? What is DSSS? What is FHSS? And what are their differences?How do I resolve issues with signal loss? How do I reset the Router?Have excellent signal strength, but I cannot see my network Security Precautions Appendix B Wireless SecuritySecurity Threats Facing Wireless Networks Security Threats Facing Wireless Networks Wireless-G Broadband Router with SRX400 Appendix C Upgrading Firmware Figure C-1 Upgrade FirmwareShared Resources Appendix D Windows HelpNetwork Neighborhood/My Network Places Windows 98SE or Me Instructions Figure E-1 IP Configuration ScreenFor the Router’s Web-based Utility Windows 2000 or XP InstructionsAppendix F Glossary Wireless-G Broadband Router with SRX400 Wireless-G Broadband Router with SRX400 Wireless-G Broadband Router with SRX400 Wireless-G Broadband Router with SRX400 Standards Appendix G SpecificationsFCC, IC-03, CE, Wi-Fi 802.11b, 802.11g, WPA ModelTo 40 C 32 F to 104 F Operating TempStorage Temp Operating HumidityLimited Warranty Appendix H Warranty InformationFCC Statement Appendix I Regulatory InformationWireless-G Broadband Router with SRX400 Wireless-G Broadband Router with SRX400 Wireless-G Broadband Router with SRX400 Wireless-G Broadband Router with SRX400 Dual-Band Wireless Access Point Need to contact Linksys? Appendix J Contact InformationInformation section in this Guide