Compaq WL110 Manuale utente

11Mbps Wireless LAN - User’s Guide i

Table of Contents

Introduction

About Compaq 11Mbps Wireless LAN ___________________________1-1

About Compaq 11Mbps Wireless LAN Tools ______________________1-1

About 11Mbps Wireless LAN Access Points_______________________1-3

WL410 Wireless SMB Access Point_________________________1-3

WL510 Wireless Enterprise Access Point ____________________1-3

About This User’s Guide _____________________________________1-3

About Icons used in this Document_________________________1-4

On-line Help Documentation______________________________1-5

Additional Files on your CD-ROM __________________________1-5

Other Sources of Information _____________________________1-5

Wireless Configurations

Introduction ______________________________________________2-1

Peer-to-Peer Workgroup_____________________________________2-1

Basic Infrastructure ________________________________________2-2

Stand Alone Configuration _______________________________2-2

Wireless Access to Ethernet Networks ______________________2-3

Advanced Infrastructures ____________________________________2-3

Multiple Channel Configuration____________________________2-3

Setting Up your LAN Administrator Station

Introduction ______________________________________________3-1

Assigning an LAN Administrator Station _________________________3-1

Minimum Requirements _________________________________3-1

Managing Peer-to-Peer Workgroups____________________________3-2

Managing Infrastructure Networks _____________________________3-2

Wired or Wireless? _____________________________________3-2

11Mbps Wireless LAN - User’s Guide

Installing 11Mbps Wireless LAN Software _______________________ 3-4

Client Manager _______________________________________ 3-4

AP Manager _________________________________________ 3-5

Configuration Scenarios_____________________________________ 3-7

Wired LAN Administrator Station __________________________ 3-7

Wireless LAN Administrator Station ________________________ 3-9

Uninstalling 11Mbps Wireless LAN Software ____________________ 3-10

Basic Network Configuration

Introduction______________________________________________ 4-1

Peer-to-Peer Workgroups _______________________________ 4-1

Infrastructure Networks ________________________________ 4-1

Configuring Infrastructure Networks ___________________________ 4-2

Basic Configuration ____________________________________ 4-2

Monitoring your 11Mbps Wireless LAN Network

Introduction______________________________________________ 5-1

11Mbps Wireless LAN Tools _____________________________ 5-1

Which Tool Should You Use? _____________________________ 5-2

Using the Client Manager____________________________________ 5-3

Monitoring Methods ___________________________________ 5-3

Link Test Window _____________________________________ 5-5

Site Monitor Window ___________________________________ 5-8

Logging Measurement Data_____________________________ 5-14

Diagnose Card_______________________________________ 5-16

Troubleshooting Site Monitor____________________________ 5-16

11Mbps Wireless LAN - User’s Guide iii

Using the AP Manager _____________________________________5-17

Monitoring Options____________________________________5-17

Connecting to Access Points ____________________________5-18

System Information ___________________________________5-19

Remote Link Test Window ______________________________5-20

Remote Statistics Tab _________________________________5-23

System Intervals _____________________________________5-25

Optimizing Performance

Introduction ______________________________________________6-1

Eliminating Redundant Traffic_________________________________6-1

Protocol Filtering ______________________________________6-2

Optimizing Wired Connections ____________________________6-4

Optimizing Wireless Connections __________________________6-6

Link Integrity ________________________________________6-17

Designing High Capacity Networks ____________________________6-18

About the CSMA/CA Protocol ____________________________6-18

Security

Introduction ______________________________________________7-1

Securing Access to Wireless Data______________________________7-1

Restrict Wireless Access to the Network ____________________7-2

Closing the Wireless Network_____________________________7-2

Access Control ________________________________________7-3

Wireless Data Encryption ____________________________________7-7

Enabling WEP Encryption ________________________________7-8

Securing Access Point Setup ________________________________7-12

Read and Read/Write passwords _________________________7-12

SNMP IP Access List __________________________________7-13

Trap Host Alerts ______________________________________7-14

11Mbps Wireless LAN - User’s Guide

Advanced Security Maintenance _____________________________ 7-15

Maintaining Access Control Tables _______________________ 7-15

Maintaining WEP Encryption Keys ________________________ 7-15

Advanced Network Configurations

Introduction______________________________________________ 8-1

Advanced Parameters ______________________________________ 8-1

Advanced Parameters __________________________________ 8-2

Bridge Parameters ____________________________________ 8-4

Access point IP Parameters______________________________ 8-8

SNMP Parameters ____________________________________ 8-11

Ethernet Interface ____________________________________ 8-13

Configuring Large Networks ________________________________ 8-14

Common Parameters__________________________________ 8-15

Unique Parameters ___________________________________ 8-15

Managing Configuration Consistency______________________ 8-15

Modifying the Configuration_________________________________ 8-18

Changing Common Parameters __________________________ 8-18

Restoring a Back-up Configuration ___________________________ 8-19

Dual WL110 Wireless PC Card Configuration ____________________ 8-19

About IP Addresses and Subnets _____________________________ 8-20

BOOTP and DHCP ____________________________________ 8-20

Start-up Configuration

Introduction______________________________________________ A-1

Factory-set Configuration ___________________________________ A-2

Troubleshooting

Introduction______________________________________________ B-1

Problem-solving Approach ______________________________ B-1

Rebooting Access Points ____________________________________ B-4

Manual Reboot _______________________________________ B-4

Remote Reboot _______________________________________ B-5

11Mbps Wireless LAN - User’s Guide v

Forced Reload Procedure

Introduction _____________________________________________ C-1

Performing a Forced Reload _________________________________ C-2

Step 1 - Preparations __________________________________ C-2

Step 2 - Set to “Forced Reload” Mode _____________________ C-3

Step 3 - Configuring and Uploading Files ___________________ C-4

Creating a Back-up File ________________________________ C-7

Upgrading Access Point Software

About the Access Point Software _____________________________ D-1

Upload Software__________________________________________ D-1

Upload Software, a Look under the Hood ___________________ D-2

11Mbps Wireless LAN - User’s Guide

Introduction 1-1

chapter 1

Introduction

About Compaq 11Mbps Wireless LAN

The Compaq 11Mbps Wireless LAN product family is a comprehensive set of

network equipment that enables you to build any type of network configuration,

from a small independent wireless network to a large, completely wireless

infrastructure. The Compaq 11Mbps Wireless LAN product family consists of:

■WL110 Wireless PC Card, for (mobile) computers that support the PC Card

Type II slot.

■WL210 Wireless PCI Card for desktop computers

■WL215 Wireless USB Adapter for computers that support USB

connections.

■WL310 Wireless Home Office Gateway for easy setup in Small Office /

Home Office (SOHO) environments.

■WL410 Wireless SMB Access Point and WL510 Wireless Enterprise

Access Point to connect wireless stations to existing Ethernet LAN

infrastructures.

The wireless network interface is not much different from the interface for wired

LANs. The operating system will not even notice the difference.

The wireless network interface supports all protocols that are supported by

standard Ethernet adapter cards. Like wired network interfaces, wireless

network interfaces are installed with a dedicated 11Mbps Wireless LAN driver,

but unlike wired network interfaces, wireless network interfaces do not need a

cable to connect them to the network. Only wireless network interfaces allow

you to relocate workstations without the need to change network cabling or

connections to patch panels or hubs.

About Compaq 11Mbps Wireless LAN Tools

The Compaq 11Mbps Wireless LAN software suite consists of a set of

management tools that enables you to:

■Display and modify the configuration of (remote) network components.

■Configure network components such as Access Points.

■Diagnose the network performance and, if necessary, identify and solve

network errors.

■Manage and optimize network performance.

1-2 Introduction

The Compaq 11Mbps Wireless LAN software suite consists of the following

tools:

■Client Manager

■AP Manager

The Compaq 11Mbps Wireless LAN tools can be installed on stations that run

the Microsoft Windows 95, 98, ME, NT 4.0 or 2000 operating systems.

Note: The Compaq 11MbpsWireless LAN products have been designed for

interoperability with all other wireless LAN products that use the direct

sequence radio technology, as identified in the IEEE 802.11 standard for

wireless LANs.

In addition, the 11Mbps Wireless LAN products are certified with the

Wi-Fi logo for proven interoperability with the major other 802.11

products.

This means that your 11Mbps Wireless LAN hardware will

communicate with other vendors’ IEEE 802.11 compliant wireless LAN

products.

However, you may not always be able to use the 11Mbps Wireless LAN

software suite in combination with other vendors’ products, due to the

following reasons:

■The IEEE 802.11 standard for wireless LANs does not identify

standards for diagnostic or management tools; i.e. each vendor may

have designed a customized tool to configure and/or manage the

IEEE 802.11 wireless network.

■The Compaq 11MbpsWireless LAN software suite has been

designed to offer an enhanced set of tools to monitor and analyze a

wide range of diagnostic tallies.

Some of these tools require additional functions in the hardware that

(by default) is supported by all Compaq 11Mbps Wireless LAN

products, but may not be supported by the other vendors’ products.

If other vendors’ products do not allow you to display communications

quality or configuration parameters using the 11MbpsWireless LAN

software suite, please refer to the documentation that was shipped with

the other vendors’ product.

Client Manager

The Client Manager is a diagnostic tool to monitor wireless radio

communication between a wireless station and its Access Point, or to monitor

the link between two wireless stations in an independent network.

Furthermore it can be used as a site monitor to show the coverage of the installed

Access Point in a certain area.

AP Manager

Introduction 1-3

The AP Manager is primarily a tool for LAN administrators or system

supervisors. You can use the AP Manager program to configure Access Points

and to monitor the performance of your wireless network. It can be run on any

station in the network, either wired or wireless.

About 11Mbps Wireless LAN Access Points

The Access Points are identified by either one of the following MAC addresses:

■The universal MAC address of (one of) the Wireless Network Interface(s)

used by the Access Point, or

■The universal MAC address of the Ethernet Interface.

There are two 11Mbps Wireless LAN Access Points:

■WL410 Wireless SMB Access Point

■WL510 Wireless Enterprise Access Point

WL410 Wireless SMB Access Point

The WL410 Access Point is a transparent bridge device equipped with:

■An integrated Wireless Network Interface to connect Wireless Stations to a

(wired) network.

Note: The integrated Wireless Network Interface of the WL410 Wireless SMB

Access Point is called interface ‘A’ in this guide.

■A 10Base-T Ethernet Interface, that can be used to connectWireless

Stations to an Ethernet network.

WL510 Wireless Enterprise Access Point

The WL510 Access Point is a transparent bridge device equipped with two PC

Card slots A and B. Wireless Network Interfaces A and B are corresponding to

slot A and B ofthe WL510 Wireless Enterprise Access Point, into which WL110

PC Cards can be inserted.

For information concerning all Compaq products, please refer to the

documentation that was included with your product, or visit our website at: http:/

/www.compaq.com/support/files/networking/wlan/

About This User’s Guide

This guide describes how to use the 11MbpsWireless LAN tools to configure

and monitor wireless LANs built with 11MbpsWireless LAN products.

In this manual, you will find the following:

■chapter 1 “Introduction” describes the 11Mbps Wireless LAN tools and the

sources for finding more information.

■chapter 2 “Wireless Configurations” describes network scenarios that will

be used throughout this document.

1-4 Introduction

■chapter 3 “Setting Up your LAN Administrator Station” describes how to

select a station to manage your 11Mbps Wireless LAN network, and how to

install the necessary software.

■chapter 4 “Basic Network Configuration” explains how to configure your

particular network, using three network scenarios, from simple to

sophisticated.

■chapter 5 “Monitoring your 11Mbps Wireless LAN Network”, describes

how to monitor and diagnose communications quality.

■chapter 6 “Optimizing Performance” presents a number of considerations to

help you sort through the complex factors that determine the performance of

your wireless LAN.

■chapter 7 “Security” describes how to enhance security and minimize

unauthorized use of your 11Mbps Wireless LAN network.

This document does not describe every possible option supported by the

11Mbps Wireless LAN software suite. It should serve as a general guideline to

help you to decide which tool can help you to accomplish a specific task.

For more information about specific software screens or options, you are

advised to consult the on-line help documentation.

About Icons used in this Document

Throughout this document we use the following icons to represent the various

networking devices:

Icon Description

Wireless computer

Equipped with:

• WL110 Wireless PC Card

• WL215 Wireless USB Adapter

• WL210 Wireless PCI Card

Access Point

- WL310 Wireless Home Office Gateway

- WL410 Wireless SMB Access Point, or

- WL510 Wireless Enterprise Access Point

Server station

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