Hewlett Packard Enterprise WL565 Users manual

3Com 802.11g 54Mbps
Wireless LAN Building to
Building Bridge
User’s Guide

Version 2.0

Outdoor: 3CRWEASYG73

Indoor: 3CRWE920G73

Part No. DUA-ASYG73-AAA02
Published January 2005

3Com Corporation
350 Campus Drive
Marlborough
MA USA 01752-3064

Copyright © 2005, 3Com Technologies. All rights reserved. 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 Technologies.

3Com Technologies reserves the right to revise this documentation and to make changes in
content from time to time without obligation on the part of 3Com Technologies to provide
notification of such revision or change.

3Com Technologies 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.

Unless otherwise indicated, 3Com registered trademarks are registered in the United States and
may or may not be registered in other countries.

3Com and the 3Com logo are registered trademarks of 3Com Corporation. XRN is a trademark of
3Com Corporation IEEE and 802 are registered trademarks of the Institute of Electrical and
Electronics Engineers, Inc. Intel and Pentium are registered trademarks of Intel Corporation.
Microsoft, MS-DOS, Windows, and Windows NT are registered trademarks of Microsoft
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OpenView is a registered trademark of Hewlett Packard. JavaScript is a trademark of Sun
Microsystems. All other company and product names may be trademarks of the respective
companies with which they are associated.

ENVIRONMENTAL STATEMENT

It is the policy of 3Com Corporation to be environmentally-friendly in all operations. To uphold our
policy, we are committed to:

Establishing environmental performance standards that comply with national legislation and
regulations.

Conserving energy, materials and natural resources in all operations.
Reducing the waste generated by all operations. Ensuring that all waste conforms to recognized

environmental standards. Maximizing the recyclable and reusable content of all products.
Ensuring that all products can be recycled, reused and disposed of safely.
Ensuring that all products are labelled according to recognized environmental standards.
Improving our environmental record on a continual basis.

End of Life Statement

3Com processes allow for the recovery, reclamation and safe disposal of all end-of-life electronic
components.

Regulated Materials Statement

3Com products do not contain any hazardous or ozone-depleting material.

Environmental Statement about the Documentation

The documentation for this product is printed on paper that comes from sustainable, managed
forests; it is fully biodegradable and recyclable, and is completely chlorine-free. The varnish is
environmentally-friendly, and the inks are vegetable-based with a low heavy-metal content.

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CONTENTS

ABOUT THIS GUIDE 5

Purpose 5

Prerequisite Skills and Knowledge 5

Conventions Used in this Document 6

3Com Corporation Technical Support 6

1 INTRODUCTION 7

Product Overview 7

Operating Modes 8

2 INSTALLING THE WIRELESS BRIDGE 9

Overview 9

Scope of Delivery 9

Hardware Installation 10

Installing the 3CRWE920G73 Indoor Wireless Bridge 10
Installing the 3CRWEASYG73 Outdoor Wireless Bridge 14
Install

ing the 3CRWEASYG73/3CRWE920G73 Antenna 16

Antenna Specification 17
Connect to the Power Source and the Local Network 18

LED Indicators 19

Software Installation 20

Find your New Wireless Bridge 21

Using the Diagnostic Utility 23

Contents of CD 28

3 WIRELESS BRIDGE CONFIGURATION 29

Initialization 29

The first login 29
Accessing the Web Manager Interface 30

Setup Wizard 31

Wireless Setup 31
Security Setup 32
WDS Links Setup 34
Setup Finished 35

Device Summary 36

General 36
Internet 37
Wireless 38
Security 39

Save Configuration 40

Internet Settings 41

IP Setup 41

DHCP Server 42

Wireless Settings 43

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Wireless 43

Security 45

WDS links 48

Device Management 52

Device Information 52

System Access 53

STP 55

Time 56

SNMP 57

System tools 59

Backup/Restore 59

Upgrade 62

Reboot 65

Reset 65

Event Logs 66

Event Log Status 66

Event Log Setup 67

Event Log Filter 68

System Status 69

Statics 69

STP 71

STP Statics 71

STP Port 72

4 TROUBLESHOOTING 73

Reset to Factory Default procedure 73

Setting IP Address Using 3Com Wireless Infrastructure Device Manager
73

Hardware and software requirements 73

Discover the wireless bridge 73

Initializing the IP Address using 3Com Wireless Infrastructure Device
Manager 74

5 SPECIFICATIONS 75

Regulatory domains 75

Hardware Specification 76

Software Specification 77

6 GLOSSARY 78

REGULATORY INFORMATION 83

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ABOUT THIS GUIDE

Purpose

This document provides information and procedures on hardware installation, setup,
configuration, and management of the 3Com Corporation 802.11g Wireless Bridge.

Prerequisite Skills and Knowledge

To use this document effectively, you should have a working knowledge of Local
Area Networking (LAN) concepts and wireless Internet access infrastructures. In
addition, you should be familiar with the following:

♦ Hardware installers should have a working knowledge of basic electronics and

mechanical assembly, and should understand related local building codes.

♦ Network administrators should have a solid understanding of software

installation procedures for network operating systems under Microsoft
Windows 95, 98, Millennium Edition, 2000, NT, and Windows XP and general
networking operations and troubleshooting knowledge.

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Conventions Used in this Document

Table 1 and Table 2 list conventions that are used throughout this guide.

Table 1 Notice Icons

Icon Notice Type Description

Information note Information that describes important features or instructions.

Caution

Warning Information that alerts you to potential personal injury.

Table 2 Text Conventions

Convention Description

Information that alerts you to potential loss of data or potential
damage to an application, system, or device.

Screen displays
Syntax

Commands

The words “enter” and
“type”

Keyboard key names If you must press two or more keys simultaneously, the key names are

Words in italics Italics are used to:

3Com Corporation Technical Support

This typeface represents information as it appears on the screen.
The word “syntax” means that you must evaluate the syntax provided

and then supply the appropriate values for the placeholders that
appear in angle brackets. Example:
To change your password, use the following syntax:

system password <password>

In this example, you must supply a password for <password>.
The word “command” means that you must enter the

command exactly as shown and then press Return or Enter.
Commands appear in bold. Example:
To display IP information, enter the following command:

get ipaddr

When you see the word “enter” in this guide, you must type something,
and then press Return or Enter. Do not press Return or Enter when an
instruction simply says “type.”

linked with a plus sign (+). Example:

Press Ctrl+Alt+Del

■ Emphasize a point.

■ Denote a new term at the place where it is defined in the text.

■ Identify menu names, menu commands, and software button

names. Examples:
From the Help menu, select Contents.
Click OK.

If you encounter problems when installing or using this product, please consult the
3Com Corporation website at

http://www.3Com.com

for

♦ The latest software, user documentation and product updates.

♦ Frequently Asked Questions (FAQ).

♦ Direct contact to the 3Com Corporation support centers.

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1 INTRODUCTION

Thank you for choosing the 3Com Corporation 802.11g Wireless LAN Building to
Building Bridge.

This manual will give you a short introduction to the device and its hardware and
show you how to install and set up the Wireless Bridge.

Product Overview

Maximum Wireless Throughput

The 3Com Corporation 802.11g Wireless Bridge offers the fastest wireless
throughput in the 2.4GHz frequency band and delivers a data transmission rate up
to 54Mbps, which is faster than any 802.11b Bridge.

Wireless Access Security

The 3Com Corporation 802.11g Wireless Bridge provides high-level security with
full 128-bit RC4 data encryption or 64-bit WEP encryption. The Wireless Bridge
supports WPA-PSK and VPN pass through, which provide a more advanced data
protection during wireless transmission.

Install and Maintain

With an external antenna under point-to-point or point-to-multi-point mode, it
enables long range high speed link between buildings.

Power over Ethernet reduces installation expenses and increases location options
via a single Ethernet cable to provide both data and power to the unit.

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Operating Modes

Point to Point Bridge Link

The 3Com Corporation 802.11g Wireless Bridge can work in point-to-point and
point-to-multipoint bridge modes:

In these modes the Wireless Bridge connects two or more wired networks, for
example networks in different buildings with no wired connections. You will need a
3Com 802.11g 54Mbps Building to Building Bridge on both sides of the connection.
In this case, the Wireless Bridge acts as a network bridge between wireless and
wired networks. In bridge mode the Wireless Bridge can connect up to seven
remote networks.

Point to Multi-Point “Star Configuration”

Point to Multi-Point “In-Line Configuration”

19° Beam

Angle

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2 INSTALLING THE WIRELESS BRIDGE

Overview

This chapter provides installation instructions for the hardware and software
components of the 3Com Corporation 802.11g Wireless Bridge. It also includes the
following information:

♦ Package content

♦ Hardware installation

♦ Software installation

Scope of Delivery

Please ensure that the package is complete before beginning with the installation.
The package should include the following:

♦ 3Com 802.11g Wireless Bridge

♦ Mounting kit for wall or mast mount (indoor / outdoor respectively)

♦ CD-ROM containing software and documentation

♦ Power over Ethernet Power Injector

♦ Lightning arrestor (outdoor bridge only)

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Hardware Installation

Installing the 3CRWE920G73 Indoor Wireless Bridge

On a flat surface

1. Find a surface that is clear of debris.

2. Set the bridge down on its four rubber feet.

On a wall

1. Use the mounting template as a guide to make two marks 7.40cm (2.91 inches)
apart on the wall.

Use the vertical line on the template to ensure that the placement of the marks
is plumb to the wall.

2. Drill holes at the marks.
Use a 5-mm (3/16-inch) drill bit if using the provided screw anchors; use a

3-mm (1/8-inich) drill bit if using the screws only.

3. Install the two flathead screws at the marks on the wall.
Leave the screw heads protruding 6-mm (1/4 inch) from the surface of the wall.

4. Hang the bridge on the screws, using the mounting holes on the back of the
bridge.

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On an acoustical ceiling

1. Attach the mounting bracket to the back of the bridge with two number 6
panhead screws.

2. Align the T-rail grips with the ceiling T-rail, and adjust them so that they grip the
T-rails securely.

3. Tighten the screws on each T-rail grip.

After installation, there may be some play in the fit of the T-rail grips if the T-rails are
very narrow. If necessary, add a shim to achieve a secure grip.

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Connect the antenna

1. Connect one end of the antenna cable to the antenna.

2. Connect the free end of the antenna cable to the connection on the bridge.

Follow the instructions that come with the antenna and follow these general
guidelines:

♦ For best performance, place the antenna using the mounting hardware

provided with the antenna. Outdoor placement is especially important if the
building is of metal construction or has metal siding. If necessary, you can
mount an antenna inside a building; however, indoor placement reduces the
antenna’s effective range. For indoor antenna use, try to mount antenna near a
window with line of sight to opposite bridge.

♦ To ensure the physical safety of anyone near the antenna and to prevent

damage to the bridge, follow the building codes for antenna installations in your
area.

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♦ Position the antenna so that there are minimal obstacles between it and any

other antenna with which it will communicate. While maintaining a direct line of
sight between antennas is not strictly necessary, such an arrangement helps to
ensure a strong signal. Ensure that access is available for routing the antenna
cable from the antenna to the bridge.

♦ Make certain that the antenna and antenna mast are appropriately grounded.

Proper grounding prevents injury or damage from lightning strikes. To minimize
risk of damage to your network equipment, install and properly ground the
included lightning arrestor on the outdoor bridge.

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Installing the 3CRWEASYG73 Outdoor Wireless Bridge

Mount the Unit to a Mast

Follow the instructions that come with the bridge mounting hardware and follow the
general guidelines listed below.

NOTE:

Mast should extend above bridge 1
meter (3 ft)

Recommended Pole Diameter
= 2” – 2.5”

Maximum Pole Diameter = 3”

Bridge may be installed to
freestanding or roof mounted mast

♦ For best performance, place the antenna outdoors using the mounting

hardware provided with the antenna. Placement is especially important if the
building is of metal construction or has metal siding. If necessary, you can
mount an antenna inside a building; however, indoor placement reduces the
antenna’s effective range.

♦ To ensure the physical safety of anyone near the antenna and to prevent

damage to the bridge, follow the building codes for antenna installations in your
area. This is another good reason to make sure that only a professional
performs the installation.

♦ Keep in mind that in order to comply with FCC radio-frequency radiation

exposure guidelines, a minimum body to antenna distance of 2 meters (6 feet)
must be maintained while operating this device.

♦ Ensure that access is available for routing the Ethernet cable from the bridge to

the Ethernet connection inside.

♦ Make certain that the antenna mast is appropriately grounded. Proper

grounding can prevent injury or damage from lightning strikes.

♦ After installing the bridge, the highest allowable power level is automatically set

when country selection is configured. Adhering to this configuration ensures
compliance with national laws.

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Align and Polarize the Units

For optimal performance, position the antenna so that there are minimal obstacles
between it and any other antenna with which it will communicate. While maintaining
a direct line of sight between antennas is not strictly necessary, such a
configuration helps to ensure a strong signal. As mentioned earlier, this is not
always possible in long distance configurations.

Any two bridge units that are to communicate with each other must be set for the
same polarization, either horizontally or vertically. If cross-polarization occurs, the
link with either work poorly or not at all. Please refer to the “Polarization” section of
the User Guide for further details. The following illustration shows proper alignment,
orientation and polarization for optimal performance.

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Installing the 3CRWEASYG73/3CRWE920G73 Antenna

The installation of indoor wireless links requires technical expertise. At the very
least, you should be able to:

• Install and configure the network components, such as the 3Com wireless bridge

hardware.

• Understand, or have a working knowledge of, installation procedures for network

operating systems using Microsoft Windows.

• Mount the indoor antenna. Antenna installation must be provided by professional

installers.

WARNING!

The indoor antennas to be used with these products are intended for mounting on
an antenna tower, on a roof, or on the side of a building. Installation is not to be
attempted by someone not trained or experienced in this type of work. The
antenna must be installed by a suitably trained professional installation technician
or by a qualified antenna installation service. The site prerequisites must be
checked by a person familiar with the National Electrical Code and with other
regulations governing this type of installation.

Local radio regulations or legislation may impose restrictions on the use of specific
combinations of:

• Low-loss antenna cables and indoor antennas

• Radio channels selected at the radios that are connected to specific indoor

antennas

Note: A basic rule for selecting a combination of cables and antennas is that no
combination is allowed unless explicitly approved in the 3Com wireless bridge
User Guide for your product. Therefore, always use 3Com recommended
antennas in page 16 of User Guide to select the correct type of antenna
equipment and to inform your antenna installer and LAN administrator about the
impact of regulatory constraints on their job or activities.

CAUTION: At all times, it is the customer’s responsibility to ensure that an
indoor antenna installation complies with local radio regulations.
The customer must verify that:

The antenna installer is aware of these regulations.

The correct cable type and surge arrestor have been used, according to the
instructions described in the user guide. 3Com Corporation and its resellers or
distributors are not liable for any damage or violation of government regulations
that may arise from failing to comply with these guidelines.

1

In case you are not certain about the regulations that apply in your country, consult your local 3Com

representatives.

1

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Antenna Specification

3CWE492 2.5dBi ceiling mount 3CWE490 4 dBi Omni-directional 3CWE491 8 dBi Omni-directional

The following antennas and cables are available from 3Com Corporation:

♦ Antennas

3CWE495 13 dBi Sector-Panel

3CWE498 8 dBi sector panel

3CWE497 4dBi bi-directional Antenna Cables:

Directional

3CWE496 18 dBi Sector-Panel

Directional

NOTE: Because of power level restrictions, use of the 3CWE495 13dBi and
3CWE496 18dBi antennas is not allowed in some countries.

The highest allowable power level is set automatically when you configure antenna
selection after installing the bridge.

To comply with power restrictions, identical antennas using 6-foot cable must be

separated by at lease the minimum distances shown below:

Minimum Distance for Full Throughput (approximate)

Antenna (dBi) Meters Yards

18 200 218
13 50 55

8 10 11
4 2 2

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Connect to the Power Source and the Local Network

Connect a twisted pair CAT5
Ethernet cable from the ”To
Hub/Switch” port of the PoE
Adapter to a free port on the hub
or switch within the local
network

3CRWE920G73 Indoor Wireless Bridge

3CRWEASYG73 Outdoor Wireless Bridge

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LED Indicators

After the correct connection, the power LED and the LAN link LED of the
3CRWE920G73 indoor bridge should light up. On the front of the Wireless Bridge
you will find three LEDs.

POWER

WIRELESS

ETHERNET

1. POWER LED
Off: Power supply connection not available or broken
On: Power supply connection OK

2. WIRELESS activity LED
Off: No activity
Blinking: Sending and receiving data

3. ETHERNET LAN link LED
Off: No LAN connection available
On: LAN connection OK

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Software Installation

Insert the installation CD-ROM delivered with the 3Com WLAN Building to Building
Bridge into your CD-ROM drive

The installation wizard starts automatically and will guide you through the rest of the
installation process. If the installation wizard does not start automatically, run
“setup.exe” from the root directory of the installation CD. Then choose to install the
3Com Wireless Infrastructure Device Manager (WIDMAN) utility for helping you find
the Bridge and configuring its IP address.

The 3Com Installation CD contains the following tools and utilities:
3Com Wireless Infrastructure Device Manager (WIDMAN) – an administration

tool that helps you select 3Com wireless LAN devices and launch their
configurations in your Web browser.

3Com 3CDaemon Server Tool – a firmware upgrade tool that can act in four
different capacities:

♦ As a TFTP Server, necessary for firmware upgrades, and backup and restore

♦ As a SysLog Server, which is necessary to view SysLog messages.

♦ As an optional TFTP Client.

♦ As an optional FTP Server.

To install one of the tools on your computer:

1. Turn on the computer;

2. Insert the 3Com Installation CD in the CD-ROM drive;

The setup menu appears. If it does not appear, you can start the setup menu from
the Windows Start menu. For example: Start > Run > d:setup.exe .

3. In the menu, click Tools and Utilities.

4. In the next screen, click the tool you want to install.

5. Follow the instructions on the screens to complete the

Reboot the computer if prompted to do so.

6. Launch the tool from the Windows Start menu.

functions. Use this option if you do not have a TFTP server set up.

NOTE: It is recommended that you install the 3CDaemon Server tool if you do not
already have a firmware tool for upgrades on your computer.

installation.

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Find your New Wireless Bridge

To find your new Wireless Bridge, open the 3Com Wireless Infrastructure Device
Manager (WIDMAN) utility. On start up, the dialog box will look like the Figure
below:

Click the ‘Refresh’ button and the 3Com Wireless Infrastructure Device Manager
(WIDMAN) utility will begin to discover devices. After finding the new Wireless
Bridge, it will appear in the list box.

Choose the Wireless Bridge in the list box, and then click the ‘Configure…’ button. If
3Com Wireless Infrastructure Device Manager (WIDMAN) finds that your PC
cannot connect to the Wireless Bridge by IP, it would pop-up a dialog requesting
that you change the IP address of the device. Then the utility will prompt you to
enter the password of the bridge. [Note: default password is “blank”]

NOTE: It can take up to 60 seconds for the 3Com Building to Building Bridge to
boot up after power has been connected. The Bridge will not appear in the
WIDMAN utility unit boot up is complete. Click the REFRESH button occasionally
until the Bridge appears.

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After setting up a correct IP address for the device, you will be able to configure it
through the WEB UI.

The first time you configure the Wireless Bridge, you will see an initial Settings page.
In this page, you will setup the username/password for administrator access. And
you will select Country, antenna and cable Settings on this page as well.

NOTE:1. Default USERNAME and PASSWORD are both ‘admin’.

2. Antenna and Cable settings only apply to indoor bridge.

After changing these settings, you will be redirected to the Login page. Please input
the username and password that you setup on the initial page, and then you will
login in the device successfully.

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Using the Diagnostic Utility

The Diagnostic Utility will help you review the status of 3Com wireless bridge, do a
site survey for discovering wireless device around the wireless bridge.

The Diagnostic Utility must be installed on a computer that:

♦ Has a working Ethernet adapter.

♦ Is running one of the Windows operating systems of Win2000 and Win XP.

♦ Is on the same subnet as the wireless bridge.

The device to be diagnosed using the Diagnostic Utility must be:

♦ Connected to power.

♦ Wired to the network, associating with the wireless network, or, in some cases

with the bridge, connected directly to the computer.

Before you connect to the device using the Diagnostic Utility, make sure the device
IP address is in the same subnet with your computer.

To use the Diagnostic Utility, launch it by selecting Start > Programs >Diagnostic
Utility > Diagnostic Utility.

The Diagnostic Utility will pop up a dialog to let you input the wireless bridge IP
address and SNMP community for access the wireless bridge.

Figure 1 – Input IP address and SNMP community

If the Diagnostic Utility connects to the wireless bridge successfully, it will open a
property page dialog window.

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Figure 2 – Diagnostic Utility Main Page

On the SysInfo page, you will see the system uptime, bridge MAC address and the
Firmware version number.

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To check the system performance information, click the Performance tab.

Figure 3 – System Performances

The Performance tab displays the CPU and memory usage information.

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