3Com 3CRWE90096A - Wireless Access Point Manuel utilisateur

Wireless

Building-to-Building

Bridge

3CRWE90096A

Wireless Network Solution

Quick Start Guide

http://www.3com.com/

http://www.3com.com/productreg

09-2099-000

Published June 2001

3Com Corporation ■5400 Bayfront Plaza ■Santa Clara, California ■95052-8145 ■U.S.A

trademark of 3Com Corporation. Assembled in the USA.

No part of this documentation may be reproduced in any form or by any means or used to make any derivative

work (such as translation, transformation, or adaptation) without written permission from 3Com Corporation.

3Com Corporation reserves the right to revise this documentation and to make changes in content from time to

time without obligation on the part of 3Com Corporation to provide notification of such revision or change.

3Com Corporation provides this documentation without warranty, term, or condition of any kind, either implied or

expressed, including, but not limited to, the implied warranties, terms or conditions of merchantability, satisfactory

quality, and fitness for a particular purpose. 3Com may make improvements or changes in the product(s) and/or

the program(s) described in this documentation at any time.

If there is any software on removable media described in this documentation, it is furnished under a license

agreement included with the product as a separate document, in the hard copy documentation, or on the

removable media in a directory file named LICENSE.TXT or !LICENSE.TXT. If you are unable to locate a copy, please

contact 3Com and a copy will be provided to you.

UNITED STATES GOVERNMENT LEGEND

If you are a United States government agency, then this documentation and the software described herein are

provided to you subject to the following:

All technical data and computer software are commercial in nature and developed solely at private expense.

Software is delivered as “Commercial Computer Software” as defined in DFARS 252.227-7014 (June 1995) or as a

“commercial item” as defined in FAR 2.101(a) and as such is provided with only such rights as are provided in

3Com’s standard commercial license for the Software. Technical data is provided with limited rights only as

provided in DFAR 252.227-7015 (Nov 1995) or FAR 52.227-14 (June 1987), whichever is applicable. You agree not

to remove or deface any portion of any legend provided on any licensed program or documentation contained in,

or delivered to you in conjunction with, this User Guide.

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registered in other countries.

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Microsoft, Windows, and Windows NT are registered trademarks of Microsoft Corporation.

All other company and product names may be trademarks of the respective companies with which they

are associated.

Contents

Product Registration and Support 1

System Requirements 1

Installation Overview 2

Unpacking the Wireless Bridge Kit Contents 2

Installing the Wireless Bridge Manager Software 3

Configuring the Wireless Bridge Units 4

Starting the Bridge Manager 5

Scanning for Bridge Groups 5

Selecting a Bridge to Configure 5

Setting Network and Security Values 6

Network Values 6

Security Settings 8

Setting Network Transmission Options 10

Mounting the Wireless Bridge 11

Mounting the Antenna 11

3Com Corporation Limited Warranty 13

Regulatory Compliance Information 15

Quick Start Guide

This quick start guide describes basic installation and configuration of the

3Com Wireless Building-to-Building Bridge. For more detailed information,

refer to the online user guide, available in Portable Document Format (PDF) on

the Installation CD. The PDF format lets you view the user guide online or print

a hardcopy.

The user guide is installed on your hard drive when you install the 3Com

Wireless Bridge Manager software from the Installation CD. You can access

the user guide by using the Windows Start menu to locate the Bridge

Manager program group.

Product Registration and Support

To register this product with 3Com, go to the following Web site:

http://www.3com.com/productreg/

To find support information, firmware updates, and links to the latest available

drivers and utilities, go to the following Web site:

http://support.3com.com/

System Requirements

■Physically isolated Ethernet LANs

■Two or more 3Com Wireless Building-to-Building Bridge units

■One antenna with cable for each wireless bridge unit (can be purchased

separately from 3Com as an accessory)

■Computer with Windows 95, 98, Me, Windows 2000, or Windows NT

installed

NOTE: You must have Adobe Acrobat Reader installed on your system

to read the 3Com Wireless Building-to-Building Bridge User Guide PDF

file. You can download the latest Adobe Acrobat Reader from the

Installation CD or from http://www.adobe.com.

Quick Start Guide

Installation Overview

Installing a set of 3Com Wireless Building-to-Building Bridges involves the

following tasks:

■Unpacking the wireless bridge hardware and software

■Installing the wireless bridge configuration software

■Configuring all available wireless bridge units

■Mounting the wireless bridge units (if necessary)

■Mounting and configuring one antenna for each wireless bridge unit

The following sections outline the installation process for you, task by task. For

detailed installation and configuration information, refer to the 3Com Wireless

Building-to-Building Bridge User Guide on the Installation CD.

Unpacking the Wireless Bridge Kit Contents

In your 3Com Wireless Building-to-Building Bridge package, you will find the

following components:

■3Com Wireless Building-to-Building Bridge (assembled)

■RJ-45 Ethernet crossover cable

■5.2V Universal AC-to-DC power supply and cord

■Mounting hardware

■This printed quick start guide with warranty

■Installation CD containing a user guide and configuration software

NOTE: Installing the 3Com Wireless Building-to-Building Bridge, cables,

and antennas should be done only by professional network personnel.

Power

Alert

Wireless

Ethernet

Serial

Wireless

Building-to-Building

Bridge

Installing the Wireless Bridge Manager Software

If any of these items is missing or damaged, please contact the place of

purchase or 3Com Customer Support (http://support.3com.com).

Installing the Wireless Bridge Manager Software

You can install the 3Com Wireless Building-to-Building Bridge Manager

on a PC or workstation running Windows 95, 98, Me, Windows 2000, or

Windows NT. The Bridge Manager is a software configuration utility that

allows you to perform all bridge configuration and management functions.

You typically install the Bridge Manager on:

■One desktop computer, through which you can globally configure and

administer all of the wireless bridge units.

■One laptop computer, through which you can adjust antenna polarization

during installation by using the RSSI monitor at the antenna site.

1Insert the Installation CD into your computer’s CD-ROM drive.

If the installation program does not begin automatically:

aClick My Computer.

bClick the icon for the drive in which the Installation CD is located.

cDouble-click setup.exe.

The Welcome screen appears.

2Click Next to continue the installation.

The Software License screen appears.

3Click Yes to indicate that you agree with the displayed terms.

The Choose Destination Location screen appears. This screen displays the

default path and location for the Bridge Manager files and documents:

c:\program files\3com\3com wireless bridge manager

You can leave the directory set at the default path, or you can change the

directory to suit your requirements.

4Enter the directory in which the Bridge Manager program will be installed.

When you have finished, click Next to continue.

The Bridge Manager files and documents are installed in the directory you

specified. It is possible that the installer will require that you restart your

computer to complete the installation. When the installation is complete,

a message is displayed that confirms a successful installation.

5Click Finish to exit the installation.

The Bridge Manager is now installed and you are ready to use it to

configure your wireless bridge units.

Quick Start Guide

Configuring the Wireless Bridge Units

The 3Com Wireless Building-to-Building Bridge Manager software communicates

with each wireless bridge using a non-routable protocol. Therefore, your wireless

bridge units must be accessible on the local subnet to communicate with the

Bridge Manager.

1Remove your 3Com Wireless Building-to-Building Bridge from the

packaging.

The wireless bridge ships fully assembled. The back panel of the bridge

provides a power jack 2for connecting the bridge to a power source.

It also provides a 10BASE-T Ethernet port 3for connecting the

bridge to the LAN (see figure below).

2Connect power to the wireless bridge:

aConnect the six-pin DC power cable to the power adapter.

bConnect the AC power cord to the other side of the power adapter.

cConnect the round power plug to the power jack 2labeled 5 VDC.

dInsert the AC power cord into an AC power outlet.

The bridge unit turns on instantly when power is supplied to it. (The unit

has no power switch.)

CAUTION: Do not try to batch-configure a set of wireless bridge units

by powering up all of your units and connecting them to the same

subnet at the same time. Connecting a set of bridge units to the same

subnet while configuring them can produce a network loop. Avoid

this situation by serially powering up, connecting, configuring,

powering down, and detaching each bridge from the subnet unit one

at a time.

5 VDC RJ-45 Serial Config.

SMA port

2Power jack

310BASE-T Ethernet port

Serial port

Configuration button

Configuring the Wireless Bridge Units

3Insert one end of the RJ-45 crossover cable into the bridge 10BASE-T

Ethernet port 3. Insert the other end of the cable into the appropriate

port on your Ethernet LAN device (a hub, for example).

Starting the Bridge Manager

To run the Wireless Bridge Manager, follow these steps:

1On the Windows taskbar, click Start.

2Select Programs and then select the Program Group you created when you

installed the Wireless Bridge Manager.

3Select the 3Com Wireless Bridge Manager entry.

The 3Com Wireless Building-to-Building Bridge Manager screen appears

and the Bridge Manager automatically scans the network for new devices.

Scanning for Bridge Groups

Whenever it is started, the Bridge Manager automatically scans the local

network to detect currently accessible bridge groups. In this case, a bridge

group is defined as all wireless bridge units having the same wireless local area

network (WLAN) service area (also known as Extended Service Set Identification

(ESSID)). The detected bridge groups are displayed on the 3Com Wireless

Building-to-Building Bridge Manager screen.

Selecting a Bridge to Configure

With the 3Com Wireless Building-to-Building Bridge Manager screen displayed,

follow these steps:

1Right-click a displayed wireless bridge unit name to show the configuration

options available for it.

2Select Configure.

The Wireless Bridge Configuration screen appears (see the next figure),

displaying tabs for Network / Security, Options, Tools, and Info. The

functions of these tabs are described in detail in the user guide.

Quick Start Guide

Setting Network and Security Values

You can change network and security settings for the wireless bridge in the

Network / Security tab of the Wireless Bridge Configuration screen.

Network Values

Network settings determine the wireless network with which the bridge can

associate. To change the Network / Security tab settings:

1Enter the name of a WLAN Service Area.

The WLAN service area (ESSID) is used to specify a unique wireless

network. The service area name can be up to 32 alphanumeric characters

long. Only bridges with the same WLAN service area can associate with

each other; they cannot communicate with bridges that have different

WLAN service areas.

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