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®
A Division of Cisco Systems, Inc.
2.4
GHz
Wireless-B
802.11b

User Guide

Ethernet Bridge
WIRELESS
WET11
Model No.

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Summary of Contents for Linksys WET11

  • Page 1: User Guide

    ® A Division of Cisco Systems, Inc. Wireless-B 802.11b User Guide Ethernet Bridge WIRELESS WET11 Model No.
  • Page 2 Wireless-B Ethernet Bridge 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 © 2003 Cisco Systems, Inc. All rights reserved.
  • Page 3: Table Of Contents

    Wireless-B Ethernet Bridge Table of Contents Chapter 1: Introduction Welcome What’s in this Guide? Chapter 2: Planning Your Wireless Network Network Topology Ad-Hoc versus Infrastructure Mode Chapter 3: Getting to Know the Wireless-B Ethernet Bridge The Back Panel The Front Panel Chapter 4: Connecting the Wireless-B Ethernet Bridge for Setup Chapter 5: Setting Up the Wireless-B Ethernet Bridge Overview...
  • Page 4 Wireless-B Ethernet Bridge Appendix F: Specifications Appendix G: Warranty Information Appendix H: Regulatory Information Appendix I: Contact Information...
  • Page 5 Wireless-B Ethernet Bridge List of Figures Figure 2-1: Infrastructure Mode Figure 2-2: Ad-Hoc Mode Figure 2-3: Wireless Bridging Using Two Bridges Figure 3-1: Back Panel Figure 3-2: Front Panel Figure 4-1: Connect the Ethernet Network Cable Figure 4-2: Connect the Power Adapter Figure 5-1: Welcome Figure 5-2: Check Connection Figure 5-3: List of Bridges...
  • Page 6: Chapter 1: Introduction

    With a Wireless-B Ethernet Bridge in the garage, and another one (or a Wireless Access Point) in the house, you're connected—with no cabling hassle. Let the Wireless-B Ethernet Bridge from Linksys open up exciting new possibilities for your wireless network. Chapter 1: Introduction Welcome 802.11b: an IEEE wireless networking...
  • Page 7: What's In This Guide

    Wireless-B Ethernet Bridge What’s in this Guide? This user guide covers the steps for setting up and using the Wireless-B Ethernet Bridge. • Chapter 1: Introduction This chapter describes the Wireless-B Ethernet Bridge applications and this user guide. • Chapter 2: Planning your Wireless Network This chapter describes the basics of wireless networking.
  • Page 8 • Appendix H: Regulatory Information This appendix supplies the regulatory information regarding the Bridge. • Appendix I: Contact Information This appendix provides contact information for a variety of Linksys resources, including Technical Support. Chapter 1: Introduction What’s in this Guide?
  • Page 9: Chapter 2: Planning Your Wireless Network

    Wireless-B Ethernet Bridge Chapter 2: Planning Your Wireless Network Network Topology A wireless local area network (WLAN) is exactly like a regular local area network (LAN), except that each computer in the WLAN uses a wireless device to connect to the network. Computers in a WLAN share the same frequency channel and SSID, which is an identification name shared by the wireless devices belonging to the same wireless network.
  • Page 10: Figure 2-2: Ad-Hoc Mode

    Wireless-B Ethernet Bridge With these, and many other, Linksys products, your networking options are limitless. Go to the Linksys website at www.linksys.com for more information about products that work with the Wireless-B Ethernet Bridge. Figure 2-2: Ad-Hoc Mode Figure 2-3: Wireless Bridging Using Two Bridges...
  • Page 11: Chapter 3: Getting To Know The Wireless-B Ethernet Bridge

    Wireless-B Ethernet Bridge Chapter 3: Getting to Know the Wireless-B Ethernet Bridge The Back Panel All connections to the Bridge are made through the ports in its back panel, shown in Figure 3-1. Figure 3-1: Back Panel Reset The Reset button resets the Bridge to its factory default settings. X-II The X-II (MDI/MDI-X) slide switch offers a choice between two settings.
  • Page 12: The Front Panel

    Wireless-B Ethernet Bridge The Front Panel Network activity with the Bridge is shown on the LEDs, shown in Figure 3-2. Green. The PWR LED will light up when the Bridge is powered on. DIAG Green. The DIAG LED will light up when there is a connection error. Re-establish the connection to eliminate the error.
  • Page 13: Chapter 4: Connecting The Wireless-B Ethernet Bridge For Setup

    Wireless-B Ethernet Bridge Chapter 4: Connecting the Wireless-B Ethernet Bridge for Setup 1. Attach the Bridge’s antenna. 2. Plug the included Ethernet network cable into the LAN port on the back panel of the Bridge, shown in Figure 4-1. 3. The X-II (MDI/MDI-X) slide switch offers a choice between two settings. Slide the X-II switch to the X position if you are connecting the Bridge to a PC’s network adapter.
  • Page 14: Chapter 5: Setting Up The Wireless-B Ethernet Bridge

    • Setup - Click the Setup button to proceed with the Setup Wizard. • User Guide - Click the User Guide button to open the PDF file of this User Guide. • LINKSYS Web - Click the LINKSYS Web button to access the Linksys website using an active Internet connection.
  • Page 15: Figure 5-3: List Of Bridges

    Wireless-B Ethernet Bridge 4. The screen shown in Figure 5-3 displays a list of Wireless-B Ethernet Bridges on your network, along with the status information for each Bridge. (If you have only one Bridge on your network, it will be the only one displayed.) Select the Bridge you are currently installing by clicking its name in the Selection box.
  • Page 16: Figure 5-6: Wireless Settings

    Wireless-B Ethernet Bridge 7. The Wireless Settings screen, shown in Figure 5-6, will now appear. Enter your wireless network’s SSID. If you chose Ad-Hoc mode, select the channel at which the network broadcasts its wireless signal. Then click the Next button. •...
  • Page 17: Figure 5-9: Wep Key

    Wireless-B Ethernet Bridge or fewer alphanumeric characters. It must match the passphrase of your wireless network and is compatible with Linksys wireless products only. (You will have to enter the WEP key(s) manually on any non-Linksys wireless products.) 10. If you entered a Passphrase, then you will see the automatically generated WEP key in the Key 1 field, shown in Figure 5-9.
  • Page 18: Chapter 6: Connecting The Wireless-B Ethernet Bridge For Network Use

    Wireless-B Ethernet Bridge Chapter 6: Connecting the Wireless-B Ethernet Bridge for Network Use 1. After configuration, unplug the power cable from the electrical outlet, and unplug the Ethernet network cable from the PC, hub, or switch. 2. Plug the Ethernet network cable into the RJ-45 port on the Ethernet-ready network device you wish to add to the wireless network.
  • Page 19: Chapter 7: Using The Wireless-B Ethernet Bridge Web-Based Utility

    Wireless-B Ethernet Bridge Chapter 7: Using the Wireless-B Ethernet Bridge Web-based Utility Overview The Bridge is designed to function properly after configuration using the Setup Wizard. However, if you would like to change these settings or make more advanced configuration changes, use your web browser and the Wireless-B Ethernet Bridge Web-based Utility.
  • Page 20: Setup

    (do not use any spaces). Make sure this setting is the same for all devices in your wireless network. For added security, Linksys recommends that you change the default SSID (linksys) to a name of your choice.
  • Page 21: Figure 7-3: Site Survey

    Wireless-B Ethernet Bridge • WEP - To enable WEP encryption, click the Enable radio button. To increase wireless network security, using WEP encryption is strongly recommended. Then click the Edit WEP Settings button to configure the WEP settings. To disable WEP encryption, keep the default, Disable. An acronym for Wired Equivalent Privacy, WEP is an encryption method used to protect your wireless data communications.
  • Page 22: Password

    (The Passphrase function is compatible with Linksys wireless products only. If you want to communicate with non-Linksys wireless products, you will need to enter your WEP key(s) manually on the non-Linksys wireless products.) After you enter the Passphrase, click the Generate button to create WEP key(s).
  • Page 23: Advanced

    Wireless-B Ethernet Bridge Advanced Use the Advanced Settings screen, shown in Figure 7-6, to customize advanced wireless settings and clone a MAC address onto the Bridge. Wireless • Transmission Rate - The default setting is Auto. The range is from 1 to 11Mbps. The rate of data transmission should be set depending on the speed of your wireless network.
  • Page 24: Status

    • Firmware Version - The version number of the Bridge’s firmware is displayed here. Firmware should be upgraded ONLY if you experience problems with the Bridge. Firmware updates are posted at www.linksys.com. For more information, refer to “Appendix C: Upgrading Firmware.” • MAC Address - The MAC Address of the Bridge is displayed here.
  • Page 25: Help

    All information is read-only. • Linksys Website - Click the Linksys Website link to visit Linksys’s website, www.linksys.com. • Online manual in PDF format - Click the Online manual in PDF format to view this User Guide online. It is in Adobe Acrobat Portable Document File (.pdf) format, so you will need the free Adobe Acrobat Reader to view...
  • Page 26: Appendix A: Troubleshooting

    Wireless-B Ethernet Bridge. Read the descriptions below to solve your problems. If you can't find an answer here, check the Linksys website at www.linksys.com. Common Problems and Solutions 1.
  • Page 27: Frequently Asked Questions

    Wireless-B Ethernet Bridge 4. The Bridge-enabled PC won’t communicate with a wireless-enabled PC or printer. Perform the following steps: • Check that the wireless-enabled PC or printer is on the same wireless network as the PC using the Bridge. • Make sure that the SSID and network mode are identical for all devices connected to the same wireless network.
  • Page 28 Wireless-B Ethernet Bridge Can I play multiplayer games with other users of the wireless network? Yes, as long as the game supports multiple players over a LAN. Refer to the game’s user guide for more information. What is ad-hoc mode? When a wireless network is set to ad-hoc mode, the wireless-equipped computers are configured to communicate directly with each other.
  • Page 29 Wireless-B Ethernet Bridge worldwide. This presents a truly revolutionary opportunity to place convenient high speed wireless capabilities in the hands of users around the globe. What is Spread Spectrum? Spread Spectrum technology is a wideband radio frequency technique developed by the military for use in reliable, secure, mission-critical communications systems.
  • Page 30: Appendix B: Wireless Security

    Wireless-B Ethernet Bridge Appendix B: Wireless Security A Brief Overview Whenever data—in the form of files, e-mails, or messages—is transmitted over your wireless network, it is open to attacks. Wireless networking is inherently risky because it broadcasts information on radio waves. Just like signals from your cellular or cordless phone can be intercepted, signals from your wireless network can also be compromised.
  • Page 31 Wireless-B Ethernet Bridge But even WEP has its problems. WEP’s encryption algorithm is referred to as “simple”, which also means “weak”, because the technology that scrambles the wireless signal isn’t too hard to crack for a persistent hacker. There are five common ways that hackers can break into your network and steal your bandwidth as well as your data.
  • Page 32 Wireless-B Ethernet Bridge Active Attacks Hackers use Active Attacks for three purposes: 1) stealing data, 2) using your network, and 3) modifying your network so it's easier to hack in the next time. In an Active Attack, the hacker has gained access to all of your network settings (SSID, WEP keys, etc.) and is in your network.
  • Page 33 Wireless-B Ethernet Bridge examples below, your implementation and administration of network security measures is the key to maximizing wireless security. No preventative measure will guarantee network security but it will make it more difficult for someone to hack into your network. Often, hackers are looking for an easy target. Making your network less attractive to hackers, by making it harder for them to get in, will make them look elsewhere.
  • Page 34 So don't broadcast the SSID. A default SSID is set on your wireless devices by the factory. (The Linksys default SSID is “linksys”.) Hackers know these defaults and can check these against your network. Change your SSID to something unique and not something related to your company or the networking products you use.
  • Page 35 Wireless-B Ethernet Bridge PCs unprotected by a firewall router should at least run firewall software, and all PCs should run up-to-date antiviral software. 8) WEP Wired Equivalent Privacy (WEP) is often looked upon as a panacea for wireless security concerns. This is overstating WEP's ability.
  • Page 36: Figure B-2: Wep Encryption

    Linksys wireless products only. If you want to communicate with non-Linksys wireless products, you will need to enter your WEP key(s) manually on the non-Linksys wireless products.) If you are not using a Passphrase, then you can enter one or more WEP keys manually.
  • Page 37: Appendix C: Upgrading Firmware

    Firmware should be upgraded ONLY if you experience problems with the Bridge. 1. Go to http://linksys.com/download. 2. Select WET11 - Wireless-B Ethernet Bridge - Version 2, and then select your operating system. 3. Then, click the Downloads for this Product button.
  • Page 38: Appendix D: Windows Help

    Wireless-B Ethernet Bridge Appendix D: Windows Help All Linksys wireless products require Microsoft Windows. Windows is the most used operating system in the world and comes with many features that help make networking easier. These features can be accessed through Windows Help and are described in this appendix.
  • Page 39: Appendix E: Glossary

    Wireless-B Ethernet Bridge Appendix E: Glossary 802.11a - An IEEE wireless networking standard that specifies a maximum data transfer rate of 54Mbps and an operating frequency of 5GHz. 802.11b - An IEEE wireless networking standard that specifies a maximum data transfer rate of 11Mbps and an operating frequency of 2.4GHz.
  • Page 40 Wireless-B Ethernet Bridge Buffer - A block of memory that temporarily holds data to be worked on later when a device is currently too busy to accept the data. Cable Modem - A device that connects a computer to the cable television network, which in turn connects to the Internet.
  • Page 41 Wireless-B Ethernet Bridge Dynamic IP Address - A temporary IP address assigned by a DHCP server. Encryption - Encoding data to prevent it from being read by unauthorized people. Ethernet - An IEEE standard network protocol that specifies how data is placed on and retrieved from a common transmission medium.
  • Page 42 Passphrase - Used much like a password, a passphrase simplifies the WEP encryption process by automatically generating the WEP encryption keys for Linksys products. Ping (Packet INternet Groper) - An Internet utility used to determine whether a particular IP address is online.
  • Page 43 Wireless-B Ethernet Bridge PPPoE (Point to Point Protocol over Ethernet) - A type of broadband connection that provides authentication (username and password) in addition to data transport. PPTP (Point-to-Point Tunneling Protocol) - A VPN protocol that allows the Point to Point Protocol (PPP) to be tunneled through an IP network.
  • Page 44 Wireless-B Ethernet Bridge TCP/IP (Transmission Control Protocol/Internet Protocol) - A network protocol for transmitting data that requires acknowledgement from the recipient of data sent. Telnet - A user command and TCP/IP protocol used for accessing remote PCs. TFTP (Trivial File Transfer Protocol) - A version of the TCP/IP FTP protocol that uses UDP and has no directory or password capability.
  • Page 45: Appendix F: Specifications

    Wireless-B Ethernet Bridge Appendix F: Specifications Model WET11 Standards IEEE 802.11b, IEEE 802.3 Ports One 10BaseT RJ-45 port, Power port Buttons MDI/MDI-X slide switch, Reset button Cabling Type Category 5 or better LEDs Power, LAN, WLAN, Diag Peak Gain of Antenna 5 dBi...
  • Page 46 Wireless-B Ethernet Bridge Operating Humidity 10% to 85%, Non-Condensing Storage Humidity 5% to 90%, Non-Condensing Warranty 1 Year Limited Appendix F: Specifications...
  • Page 47: Appendix G: Warranty Information

    Linksys product will be free of defects in materials and workmanship under normal use. Your exclusive remedy and Linksys's entire liability under this warranty will be for Linksys at its option to repair or replace the product or refund Your purchase price less any rebates.
  • Page 48: Appendix H: Regulatory Information

    • Connect the equipment to an outlet other than the receiver's • Consult a dealer or an experienced radio/TV technician for assistance FCC Caution: Any change or modification to the product not expressly approved by Linksys could void the user’s authority to operate the device.
  • Page 49 Canadian regulations. EC DECLARATION OF CONFORMITY (EUROPE) Linksys declares that the Wireless-B Ethernet Bridge conforms to the specifications listed below, following the provisions of the European R&TTE directive 1999/5/EC: For 11Mbps, 2.4 GHz devices with 100 mW radios, the following standards were applied: •...
  • Page 50 Wireless-B Ethernet Bridge • France F: 2.4 GHz Bande : les canaux 10, 11, 12, 13 (2457, 2462, 2467, et 2472 MHz respectivement) sont complétement libres d'utilisation en France (en utilisation intérieur). Pour ce qui est des autres canaux, ils peuvent être soumis à...
  • Page 51: Appendix I: Contact Information

    Can't find information about a product you want to buy on the web? Do you want to know more about networking with Linksys products? Give our advice line a call at: Or fax your request in to: If you experience problems with any Linksys product,...

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