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®
A Division of Cisco Systems, Inc.
GHz
2.4
54Mbps
Wireless-G
VPN Broadband Router
User Guide
WIRELESS
Model No.
WRV54G
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Wireless-G VPN Broadband Router Copyright and Trademarks Specifications are subject to change without notice. Instant Etherfast, Linksys, and the Linksys logo are registered trademarks of Linksys Group, Inc. Other brands and product names are trademarks or registered trademarks of their respective holders. Copyright © 2003 Linksys. All rights reserved. How to Use this Guide Your Guide to the Wireless-G VPN Broadband Router has been designed to make understanding networking with the Router eas
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Wireless-G VPN Broadband Router Table of Contents Chapter 1: Introduction 1 Welcome 1 What’s in this Guide? 2 Chapter 2: Planning your Wireless Network 4 The Router’s Functions 4 IP Addresses 4 Why do I need a VPN? 5 What is a VPN? 6 Chapter 3: Getting to Know the Wireless-G VPN Broadband Router 9 The Back Panel 9 The Front Panel 10 Chapter 4: Connecting the Wireless-G Broadband Router 11 Overview 11 Wired Connection to a PC 12 Wireless Connection to a PC 12 Chapter 5: Configuring the PCs 14 Ove
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Wireless-G VPN Broadband Router Frequently Asked Questions 57 Appendix B: Wireless Security 64 A Brief Overview 64 What Are The Risks? 64 Appendix C: Configuring IPSec between a Windows 2000 PC and the Router 71 Introduction 71 Environment 71 How to Establish a Secure IPSec Tunnel 72 Windows 98 or Me Instructions 82 Windows 2000 or XP Instructions 83 Appendix D: Finding the MAC Address and IP Address for Your Ethernet Adapter 84 Appendix E: SNMP Functions 84 Appendix F: Upgrading Firmware 85 App
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Wireless-G Broadband VPN Router Chapter 1: Introduction Welcome Wireless-G is the upcoming 54Mbps wireless networking standard that’s almost five times faster than the widely deployed Wireless-B (802.11b) products found in homes, businesses, and public wireless hotspots around the country—but since they share the same 2.4GHz radio band, Wireless-G devices can also interoperate with existing 11Mbps Wireless-B equipment. Since both standards are built in, you can protect your investment in exi
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Wireless-G Broadband VPN Router What’s in this Guide? This user guide covers the steps for setting up and using the Wireless-G VPN Broadband Router. Chapter 1: Introduction This chapter describes the Wireless-G VPN Broadband Router 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 VPN Broadband Router This chapter describes the physical features of the Router. Cha
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Wireless-G Broadband VPN Router Appendix G: Finding the MAC Address and IP Address for your Ethernet Adapter. This appendix describes how to find the MAC address for your computer’s Ethenet adapter so you can use the MAC filtering and/or MAC address cloning feature of the Router. Appendix H: Glossary This appendix gives a brief glossary of terms frequently used in networking. Appendix I: Specifications This appendix provides the technical specifications for the Router. Appendix J: Warra
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Wireless-G VPN Broadband Router Chapter 2: Planning your Wireless Network The Router’s Functions Simply put, a router is a network device that connects two networks together. In this instance, the Router connects your Local Area Network (LAN), or the group of PCs in your home or office, to the Internet. The Router processes and regulates the data that travels between these two networks. The Router’s NAT feature protects your network of PCs so users on the public, Internet side cannot “see” you
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Wireless-G VPN Broadband Router If you use the Router to share your cable or DSL Internet connection, contact your ISP to find out if they have assigned a static IP address to your account. If so, you will need that static IP address when configuring the Router. You can get that information from your ISP. Dynamic IP Addresses A dynamic IP address is automatically assigned to a device on the network, such as PCs and print servers. These IP addresses are called “dynamic” because they are onl
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Wireless-G VPN Broadband Router At this point, your data becomes open to hackers using a variety of methods to steal not only the data you are transmitting but also your network login and security data. Some of the most common methods are as follows: 1) MAC Address Spoofing Packets transmitted over a network, either your local network or the Internet, are preceded by a packet header. These packet headers contain both the source and destination information for that packet to transmit efficientl
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Wireless-G VPN Broadband Router a secure connection that, in effect, operates as if you were directly connected to your local network. Virtual Private Networking can be used to create secure networks linking a central office with branch offices, telecommuters, and/or professionals on the road (travelers can connect to a VPN Router using any computer with VPN client software that supports IPSec, such as SSH Sentinel.) There are two basic ways to create a VPN connection: VPN Router to VPN Rout
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Wireless-G VPN Broadband Router Computer (using VPN client software that supports IPSec) to VPN Router The following is an example of a computer-to-VPN Router VPN. (See Figure 2-3.) In her hotel room, a traveling businesswoman dials up her ISP. Her notebook computer has VPN client software that is configured with her office's VPN settings. She accesses the VPN client software that supports IPSec and connects to the VPN Router at the central office. As VPNs utilize the Internet, distance is no
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Wireless-G VPN Broadband Router Chapter 3: Chapter 3: Getting to Know the Wireless-G VPN Broadband Router The Back Panel The Router’s ports, where a network cable is connected, are located on the back panel. Important: Resetting the Router will erase all of your settings (WEP Encryption, Wireless and LAN settings, etc.) and replace them with the Figure 3-1: Back Panel factory defaults. Do not reset the Router if you want to retain these settings. Internet The Internet port connects to your
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Wireless-G VPN Broadband Router The Front Panel The Router's LEDs, where information about network activity is displayed, are located on the front panel. Figure 3-2: Front Panel Power Green. The Power LED lights up when the Access Point is powered on. DMZ Red. The DMZ LED indicates the Access Point's self- diagnosis mode during boot-up and restart. It will turn off upon completing the diagnosis. If this LED stays on for an abnormally long period of time, refer to Appendix A: Troubleshooting. I
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Wireless-G VPN Broadband Router Chapter 4: Connecting the Wireless-G Broadband Router Overview The Router’s setup consists of more than simply plugging hardware together. You will have to configure your networked PCs to accept the IP addresses that the Router assigns them (if applicable), and you will also have to configure the Router with setting(s) provided by your Internet Service Provider (ISP). The installation technician from your ISP should have left the setup information for your modem
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Wireless-G VPN Broadband Router Wired Connection to a PC 1. Before you begin, make sure that all of your network’s hardware is powered off, including the Router, PCs, and cable or DSL modem. 2. Connect one end of an Ethernet network cable to one of the LAN ports (labeled 1-4) on the back of the Router (see Figure 4-1), and the other end to an Ethernet port on a PC. 3. Repeat this step to connect more PCs, a switch, or other network devices to the Router. Figure 4-1: 4. Connect a different Et
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Wireless-G VPN Broadband Router The Power LED on the front panel will light up green as soon as the power adapter is connected properly. The Power LED will flash for a few seconds, then light up steady when the self-test is complete. If the LED flashes for one minute or longer, see “Appendix A: Troubleshooting.” 5. Power on one of the PCs on your wireless network(s). 6. For initial access to the Router through a wireless connection, make sure the PC’s wireless adapter has its SSID set to li
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Wireless-G VPN Broadband Router Chapter 5: Configuring the PCs IMPORTANT: Important: By default Windows 98, Overview 2000, Me, and XP has TCP/IP installed and set to obtain an IP address automatically. If your PC does The instructions in this chapter will help you configure each of your computers to be able to communicate with not have TCP/IP installed, click Start and then the Router. Help. Search for the keyword TCP/IP. Then follow the instructions to install TCP/IP. To do this, you need
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Wireless-G VPN Broadband Router 4. Now click the Gateway tab, and verify that the Installed Gateway field is blank. Click the OK button. 5. Click the OK button again. Windows may ask you for the original Windows installation disk or additional files. Check for the files at c:\windows\options\cabs, or insert your Windows CD-ROM into your CD-ROM drive and check the correct file location, e.g., D:\win98, D:\win9x, etc. (if “D” is the letter of your CD-ROM drive). 6. Windows may ask you to restar
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Wireless-G VPN Broadband Router Configuring Windows XP PCs The following instructions assume you are running Windows XP with the default interface. If you are using the Classic interface (where the icons and menus look like previous Windows versions), please follow the instructions for Windows 2000. 1. Click the Start button and then the Control Panel icon. Click the Network and Internet Connections icon. Then click the Network Connections icon. 2. Select the Local Area Connection icon for th
