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Cisco Linksys WET11 User Manual

Wireless-b ethernet bridge
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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 Cisco 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 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. Other brands and product names are trademarks or registered trademarks of their respective holders.

  • Page 3: Table Of Contents

    Wireless-B Ethernet Bridge 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 Setup Wizard...
  • Page 4 Wireless-B Ethernet Bridge Appendix H: Regulatory Information Appendix I: Contact Information...
  • Page 5 Wireless-B Ethernet Bridge 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 Figure 5-4: Password...

  • Page 6: Chapter 1: Introduction

    Wireless-B Ethernet Bridge Chapter 1: Introduction Welcome Thank you for choosing the Wireless-B Ethernet Bridge. The versatile Wireless-B Ethernet Bridge can make any 802.11b: an IEEE wireless networking wired Ethernet-equipped device a part of your wireless network. At home, use the Wireless-B Ethernet Bridge to standard that specifies a maximum connect game consoles, set-top boxes, or computers into your wireless network to share your high-speed data transfer rate of 11Mbps and an...

  • 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 Wireless-B Ethernet Bridge • Appendix F: Specifications This appendix provides the technical specifications for the Bridge. • Appendix G: Warranty Information This appendix supplies the warranty information for the Bridge. • Appendix H: Regulatory Information This appendix supplies the regulatory information regarding the Bridge. •...

  • 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 LAN (Local Area Network): the computer in the WLAN uses a wireless device to connect to the network. Computers in a WLAN share the same computers and networking products frequency channel and SSID, which is an identification name shared by the wireless devices belonging to the that make up your local network.
  • Page 10 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 Chapter 2: Planning Your Wireless Network Ad-Hoc versus Infrastructure Mode...

  • 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 Important: Resetting the Wireless-B Ethernet Reset The Reset button resets the Bridge to its factory default 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

    Wireless-B Ethernet Bridge Chapter 5: Setting Up the Wireless-B Ethernet Bridge Overview Now that you’ve connected the Wireless-B Ethernet Bridge to your wired network, you are ready to set it up. The Setup Wizard will guide you through all the necessary steps. Setup Wizard 1.
  • Page 15 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 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 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

    Wireless-B Ethernet Bridge Setup The Setup screen, shown in Figure 7-2, lets you configure the wired and wireless network settings for the Bridge. • Firmware - The version number of the Bridge’s firmware is displayed here. Firmware should be upgraded ONLY if you experience problems with the Bridge.
  • Page 21 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

    Wireless-B Ethernet Bridge • WEP Encryption - In order to use WEP encryption, select 64-Bit (10 hex digits) or 128-Bit (26 hex digits) from the drop-down menu. • Passphrase - Instead of manually entering WEP keys, you can enter a Passphrase. This Passphrase is used to generate one or more WEP keys.

  • 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

    Wireless-B Ethernet Bridge Status The Status screen displays the Bridge’s current status and settings. All information is read-only. • Device Name - The name you have assigned to the Bridge is displayed here. • 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.

  • Page 25: Help

    Wireless-B Ethernet Bridge • Link Quality - The percentage of the Bridge’s wireless signal strength is displayed here. Click the Refresh button to obtain the most up-to-date settings and statistics. Click the Help button for additional on-screen information. Help The Help screen offers links to all of the help information for the Web-based Utility’s screens and the Bridge’s online technical support resources.

  • Page 26: Appendix A: Troubleshooting

    Wireless-B Ethernet Bridge Appendix A: Troubleshooting This appendix consists of two parts: “Common Problems and Solutions” and “Frequently Asked Questions.” This appendix provides solutions to problems that may occur during the installation and operation of the 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.

  • 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 Wireless-B Ethernet Bridge 5) SSID There are a few things you can do to make your SSID more secure: a. Disable broadcast b. Make it unique c. Change it often Most wireless networking devices will give you the option of broadcasting the SSID. This is a option for convenience, allowing anyone to log into your wireless network.
  • 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 Wireless-B Ethernet Bridge The solution, then, is to segment your network up into multiple groups. If your network had 80 users and you Important: Always remember that each point in your wireless network MUST use the used four WEP keys, a hacker would have access to only ¼ of your wireless network resources. In this way, multiple keys reduce your liability.

  • Page 37: Appendix C: Upgrading Firmware

    10. On the File Download screen, click Save to save the zip file to your computer. 11. Open the zip file and double-click the exe file. 12. The WET11 Firmware Upgrade utility will appear. Follow the on-screen instructions. Note: Above instructions are based on the web pages layout when this user guide was written.

  • 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 Wireless-B Ethernet Bridge IPCONFIG - A Windows 2000 and XP utility that displays the IP address for a particular networking device. IPSec (Internet Protocol Security) - A VPN protocol used to implement secure exchange of packets at the IP layer. ISM band - Radio band used in wireless networking transmissions.
  • 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 Storage Humidity 5% to 90%, Non-Condensing Appendix F: Specifications...

  • Page 47: Appendix G: Warranty Information

    Wireless-B Ethernet Bridge Appendix G: Warranty Information LIMITED WARRANTY Linksys warrants to You that, for a period of two years (the “Warranty Period”), your Linksys Product will be substantially free of defects in materials and workmanship under normal use. Your exclusive remedy and Linksys' 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 Wireless-B Ethernet Bridge Appendix H: Regulatory Information FCC STATEMENT This product has been tested and complies with the specifications for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
  • Page 49 Wireless-B Ethernet Bridge Caution: This equipment is intended to be used in all EU and EFTA countries. Outdoor use may be restricted to certain frequencies and/or may require a license for operation. Contact local Authority for procedure to follow. Note: Combinations of power levels and antennas resulting in a radiated power level of above 100 mW equivalent isotropic radiated power (EIRP) are considered as not compliant with the above mentioned directive and are not allowed for use within the European community and countries that have adopted the European R&TTE directive 1999/5/EC.
  • Page 50 Wireless-B Ethernet Bridge An FCC compliant telephone cord and modular plug is provided with this equipment. This equipment is designed to be connected to the telephone network or premises wiring using a compatible modular jack, which is FCC Part 68 compliant. Connection to the telephone network should be made by using the standard modular telephone jack.
  • Page 51 Wireless-B Ethernet Bridge Appendix I: Contact Information Need to contact Linksys? Visit us online for information on the latest products and updates to your existing products at: http://www.linksys.com/international If you experience problems with any Linksys product, you can e-mail us at: Austria support.at@linksys.com Belguim...

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