3COM 3CRWE825075A User Manual
Size:
1.6 Mb
Download

User Guide

Wireless LAN Access Points 8250/8500/8750

3CRWE825075A

3CRWE850075A

3CRWE875075A

(Models WL-450,WL-462,WL-463)

Version 2

http://www.3com.com/

http://www.3com.com/support/en_US/productreg/frontpg.html/

Published September, 2003

Version 2.3.3

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

Copyright © 2003 3Com Corporation. 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 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 DFAR252.227-7015(November 1995) or FAR52.227-14(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, the 3Com logo, and SuperStack are registered trademarks of 3Com Corporation.

Wi-Fiis a trademark of the Wireless Ethernet Compatibility Alliance.

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

EXPORT RESTRICTIONS: This product contains Encryption and may require US and/or Local Government authorization prior to export or import to another country.

Contents

1 Introduction

Product Features

6

 

 

Security

7

 

 

 

Performance and Reliability

7

Manageability

7

 

 

Wireless Network Standards

8

 

Far-Reaching 802.11g

8

 

High-Performance 802.11a

8

Network Configuration and Planning 9

Ad Hoc Wireless LAN

9

 

Infrastructure Wireless LAN

9

Infrastructure Wireless LAN for Roaming Wireless PCs 10

Terminology

11

 

 

 

2 Installing the Access Point

Installation Requirements 13

Power Requirements

14

Safety Information

14

Deciding Where to Place Equipment and Performing A Site Survey 15

16

 

Before You Begin

16

Connecting the Standard Antennas 16

Connecting Power

17

Using the Power Supply 18

Using a Power-Over-Ethernet LAN Port 19

Checking the LEDs

19

Mounting on a Wall

19

Flat Surface Installation 21

Selecting and Connecting a Different Antenna Model 22 Power Settings on the Access Point for External Antennas 23 Installing Software Utilities 24

3 System Configuration

Using the 3Com Wireless Device Manager

25

 

Launching a Wireless Device Configuration 25

 

Using the Pre-IP Configuration Wizard

27

 

Configuration Login

27

 

 

 

 

Setting the Country Code

27

 

 

 

Basic Setup

28

 

 

 

 

 

 

Advanced Setup

 

29

 

 

 

 

 

Identification

29

 

 

 

 

 

 

TCP/IP Settings

 

29

 

 

 

 

 

DHCP Client

29

 

 

 

 

 

Secure Web Server Connection 30

 

 

 

RADIUS

30

 

 

 

 

 

 

 

Authentication

31

 

 

 

 

 

Filter Control

33

 

 

 

 

 

 

Filtering by VLAN

34

 

 

 

 

Security Filters

34

 

 

 

 

Client List Timeout

35

 

 

 

Uplink Port MAC Address Filtering

35

 

 

Filtering by Ethernet Protocol Type

35

 

 

SNMP

36

 

 

 

 

 

 

 

 

Administration

36

 

 

 

 

 

System Log

38

 

 

 

 

 

 

Status

38

 

 

 

 

 

 

 

 

Radio Interface

39

 

 

 

 

 

Radio Settings

39

 

 

 

 

 

Security

41

 

 

 

 

 

 

 

Configuring Authentication 41

 

 

 

Configuring Encryption

42

 

 

 

WPA Configuration

42

 

 

 

WEP Configuration

43

 

 

 

How to setup the access point for RADIUS authentiction 44

 

How to setup the access point for WPA with 802.1x Session keys

45

How to setup the access point for WPA with Pre-Shared (PSK) Key

46

WPA Configuration for Windows XP

47

 

 

4

Troubleshooting

 

 

A

 

 

 

Technical Support

 

 

 

Obtaining Support for your Product

52

 

Register Your Product to Gain Service Benefits 52

 

Purchase Value-Added Services

52

 

Where To Go For Help

52

 

 

Troubleshoot Online

52

 

 

Access Software Downloads 53

 

 

Contact Us 53

 

 

 

Telephone Technical Support and Repair 53

Regulatory Compliance Information

Index

1 INTRODUCTION

The 3Com® Wireless LAN Access Points 8250, 8500, and 8750 offer a dual-modearchitecture that supports 802.11g, 802.11a and 802.11b wireless users on a single device. This means you can mix and match radio bands to meet different coverage and bandwidth needs within the same area. Different access point models give you the flexibility to choose to support both radio modes immediately or choose one radio mode now and upgrade to newer standards later as they become available with aneasy-to-installoptional Mini PCI upgrade kit.

With their flexibility and unfettered access, wireless LANs are changing the way people work. Now with 3Com’s enterprise-classwireless access points, you can build a cost effective, reliable, secure wireless network that provides users with seamless connectivity to the Internet, company intranet, and the wired corporate network from anywhere they happen tobe—conferenceroom, cafeteria or office.

3Com’s dual-modedesign supports 802.11g, 802.11a and 802.11b wireless standards on a single access point. This capability increases configuration and coverage flexibility and protects your network investment for both existing and emerging wireless standards.

Industry-leadingsecurity features and comprehensive management and performance features combine to make these enterprise class wireless access points an ideal choice for organizations ready to serve their increasingly mobile workforce.

PRODUCTFEATURES

nAccess Point 8250—Createsanenterprise-classwireless LAN supporting up to 250 simultaneous users. The single wireless interface 802.11g 2.4 GHz,54-Mbpsaccess point upgrades to802.11g-802.11adual mode with optional upgrade kit.

nAccess Point 8500—Createsahigh-performanceenterprise-classwireless LAN supporting up to 250 simultaneous users. The single wireless interface 802.11a 5 GHz,54-Mbpsaccess point upgrades to802.11b/g-802.11adual mode with optional upgrade kit.

6

nAccess Point 8750—Createsahigh-performanceenterprise-classdual-mode802.11g and 802.11a wireless LAN supporting up to 250 simultaneous users up to 100 meters (328 feet).

SECURITY

3Com offers one of the most robust suite of standards-basedsecurity on the market today. To protect sensitive data broadcast over the wireless LAN, 3Com supports Wireless Equivalent Privacy (WEP) RC4 40/64-bit,128-bitand152-bitshared-keyencryption. 3Com strengthens this basic security mechanism with additional security features, including MAC address access control lists, IEEE 802.1xper-portuser authentication with RADIUS server authentication support, Temporal Key Integrity Protocol (TKIP), Advanced Encryption Standard (AES), Wireless Protected Access (WPA) and Extensible Authentication Protocol (EAP) support:EAP-MD5,EAP-TLS,EAP-TTLS,and PEAP.

In addition to standards-basedsecurity, 3Com128-bitDynamic Security Link offers a high level of security, requiring a user name and password to access the wireless LAN.

PERFORMANCE ANDRELIABILITY

3Com wireless access point performance features ensure reliable and seamless connections for users wherever they roam. Automatic channel selection automatically finds the least loaded channel for interference-freecommunication. Auto network connect and dynamic rate shifting keep users connected through a wide variety of conditions by changing to the optimum connection speed as they move through the network.

MANAGEABILITY

3Com offers a wide range of standards-basedmanagement support, from SNMP to 3Com Network Supervisor and HP OpenView for seamless integration with your wired network.

Wireless Infrastructure Device Manager and Wireless LAN Device Discovery tools let you configure parameters, run diagnostics, backup and restore configurations, and monitor performance from anywhere on the network using an embedded web server browser. You can also update wireless device software on multiple devices using 3Com Network Supervisor to simplify bulk updates.

With Power over Ethernet (PoE) support, the same Category 5 cable that connects your access point to the data network also provides its power. A single cable installation dramatically improves your choice of mounting configurations because you no longer

7