Avaya Wireless AP-3 User Manual

Copyrights

• Avaya is a registered trademark of Avaya Inc.

• Microsoft Windows is a registered trademark of the Microsoft

Corporation.

• All trademarks mentioned herein belong to their respective owners.

Publication Information

Part Number: 66222/A

Release: 2.3

Date: July 2003

Regulatory Information

See the Regulatory Flyer that came with your AP-3 unit or go to the CDROM to view the information.

Warranty

Avaya Inc. provides a limited warranty on this product. Refer to your sales agreement to establish the terms of the limited warranty. In addition, Avaya’s standard warranty language as well as information regarding support for this product, while under warranty, is available through the following website: www.avaya.com/support

Notice

While reasonable efforts were made to ensure that the information in this book was complete and accurate at the time of printing, Avaya can assume no responsibility for any errors. Changes and corrections to the information contained in this document may be incorporated into future reissues.

How to Get Help

For additional support telephone numbers, go to the Avaya support Web site: http://www.avaya.com/support. If you are:

• Within the United States, click the Escalation Management link. Then click the appropriate link for the type of support you need.

• Outside the United States, click the Escalation Management link. Then click the International Services link that includes telephone numbers for the international Centers of Excellence.

TCP/IP Facilities

Customers may experience differences in product performance, reliability and security depending upon network configurations/design and topologies, even when the product performs as warranted.

To order copies of this and other documents:

For the most current versions of documentation, go to the Avaya support Web site: http://www.avaya.com/support.

AP-3 User’s Guide Table of Contents

1. Introduction

In This Chapter .............................................................................1-1

Document Conventions .................................................................1-1

Introduction to Wireless Networking .............................................1-2

Site Survey .............................................................................1-3

Guidelines for Roaming ..........................................................1-4

Wireless Standard Support ..............................................1-4

Network Names ................................................................1-5

Security Settings ..............................................................1-5

Cell Coverage ..................................................................1-5

Data Rates .......................................................................1-6

Channels ..........................................................................1-6

IEEE 802.11 Specifications ...........................................................1-6

802.11b ...................................................................................1-7

802.11a ...................................................................................1-7

802.11g ...................................................................................1-7

Management and Monitoring Capabilities .....................................1-8

HTTP Interface .......................................................................1-8

Command Line Interface ........................................................1-8

How To Access the CLI ....................................................1-9

SNMP Management ...............................................................1-10

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AP-3 User’s Guide Table of Contents

2. Getting Started

In This Chapter .............................................................................2-1

Prerequisites .................................................................................2-1

Product Package ...........................................................................2-4

5 GHz Antenna Adapter or AP-3 11a Upgrade Kit .................2-5

System Requirements ...................................................................2-5

Hardware Installation ...................................................................2-7

AP-3 with Active Ethernet .......................................................2-7

AP-3 with Power Supply .........................................................2-10

5 GHz or AP-3 11a Upgrade Kit .............................................2-15

Initialization ...................................................................................2-19

ScanTool ................................................................................2-20

Default IP Address ...........................................................2-20

ScanTool Instructions .......................................................2-20

Setup Wizard ..........................................................................2-28

Setup Wizard Instructions ................................................2-28

Download the Latest Software ......................................................2-44

Setup your TFTP Server .........................................................2-45

Download Updates from your TFTP Server using

the Web Interface ...................................................................2-46

Download Updates from your TFTP Server using the

CLI Interface ...........................................................................2-47

Additional Hardware Features ......................................................2-48

Installing the AP in a Plenum ..................................................2-48

Installing/Removing the Metal Faceplate .........................2-49

Active Ethernet .......................................................................2-49

LED Indicators ........................................................................2-51

Related Topics ..............................................................................2-52

2 Avaya Wireless AP-3 User’s Guide

AP-3 User’s Guide Table of Contents

3. Status Information

In This Chapter .............................................................................3-1

Logging into the HTTP Interface ...................................................3-1

System Status ...............................................................................3-3

4. Advanced Configuration

In This Chapter .............................................................................4-1

Configuring the AP Using the HTTP Interface ..............................4-2

System ..........................................................................................4-6

Network .........................................................................................4-7

IP Configuration ......................................................................4-7

Basic IP Parameters ..................................................4-8

DNS Client .................................................................4-10

Advanced ...................................................................4-12

DHCP Server ..........................................................................4-12

Link Integrity ...........................................................................4-16

Interfaces ......................................................................................4-19

Wireless (802.11a) .................................................................4-19

Dynamic Frequency Selection (DFS) ...............................4-24

RTS/CTS Medium Reservation ........................................4-25

Wireless (802.11b) .................................................................4-27

Distance Between APs .....................................................4-35

Coverage ...................................................................4-36

Multicast Rate ..................................................................4-38

Wireless Distribution System (WDS) ................................4-40

Bridging WDS ............................................................4-42

WDS Setup Procedure ..............................................4-43

Wireless (802.11b/g) ..............................................................4-45

Ethernet ..................................................................................4-51

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Management .................................................................................4-52

Passwords ..............................................................................4-52

IP Access Table ......................................................................4-53

Services ..................................................................................4-55

SNMP Settings ..........................................................4-56

HTTP Access .............................................................4-56

Telnet Configuration Settings ....................................4-59

Serial Configuration Settings .....................................4-60

Filtering .........................................................................................4-61

Ethernet Protocol ....................................................................4-62

Static MAC ..............................................................................4-64

Example .....................................................................4-65

Creating an Entry .......................................................4-66

Static MAC Filter Examples ..............................................4-68

Prevent Two Specific Devices from

Communicating ..........................................................4-68

Prevent Multiple Wireless Devices From

Communicating With a Single Wired Device .............4-69

Prevent All Wireless Devices From Communicating

With a Single Wired Device .......................................4-70

Prevent A Wireless Device From Communicating

With the Wired Network .............................................4-70

Prevent Messages Destined for a Specific Multicast

Group from Being Forwarded to the Wireless LAN ...4-71

Advanced ................................................................................4-72

TCP/UDP Port ........................................................................4-73

Adding TCP/UDP Port Filters ...........................................4-74

Editing TCP/UDP Port Filters ...........................................4-75

Alarms ...........................................................................................4-75

Groups ....................................................................................4-76

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AP-3 User’s Guide Table of Contents

Severity Levels .................................................................4-85

Alarm Host Table ....................................................................4-86

Syslog .....................................................................................4-86

Setting Syslog Event Notifications ...................................4-87

Configuring Syslog Event Notifications ............................4-88

Bridge ............................................................................................4-89

Spanning Tree ........................................................................4-90

Storm Threshold .....................................................................4-91

Intra BSS ................................................................................4-92

Packet Forwarding ..................................................................4-93

Configuring Interfaces for Packet Forwarding...................4-93

Security .........................................................................................4-94

Authentication and Encryption Modes ....................................4-95

WEP Encryption ...............................................................4-95

802.1x Authentication .......................................................4-97

Authentication Process ..............................................4-99

Wi-Fi Protected Access (WPA) ........................................4-101

Configuring Security Settings ...........................................4-104

Enable WEP Encryption ............................................4-107

Enable 802.1x Security ..............................................4-108

Enable Mixed Mode (802.1x and

WEP Encryption) .......................................................4-109

802.1x Security and Wireless Distribution

Systems (WDS) .........................................................4-110

Enable WPA Mode ....................................................4-111

Enable WPA-PSK Mode ............................................4-112

MAC Access ...........................................................................4-113

RADIUS ........................................................................................4-116

MAC Access Control Via RADIUS Authentication ..................4-117

RADIUS Authentication with 802.1x .......................................4-121

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AP-3 User’s Guide Table of Contents

RADIUS Accounting ...............................................................4-123

Session Length ................................................................4-123

Configuring RADIUS Accounting .....................................4-124

VLAN/SSID ...................................................................................4-127

VLAN Overview ......................................................................4-127

VLAN Workgroups and Traffic Management ..........................4-131

Traffic Management .........................................................4-131

Typical User VLAN Configurations .........................................4-132

Configure Multiple VLAN/SSID Pairs ...............................4-133

Typical VLAN Management Configurations ............................4-135

Control Access to the AP .................................................4-135

Provide Access to a Wireless Host in the

Same Workgroup .............................................................4-136

Disable VLAN Management .............................................4-136

5. Monitor Information

In This Chapter .............................................................................5-1

Logging into the HTTP Interface ...................................................5-2

Version ..........................................................................................5-5

ICMP .............................................................................................5-7

IP/ARP Table ................................................................................5-8

Learn Table ...................................................................................5-10

IAPP ..............................................................................................5-10

RADIUS ........................................................................................5-11

Interfaces ......................................................................................5-13

Link Test (802.11b APs Only) .......................................................5-16

6 Avaya Wireless AP-3 User’s Guide

AP-3 User’s Guide Table of Contents

6. Commands

In This Chapter .............................................................................6-1

Logging into the HTTP Interface ...................................................6-1

Download ......................................................................................6-5

Upload ...........................................................................................6-7

Reboot ..........................................................................................6-8

Reset .............................................................................................6-10

Help Link .......................................................................................6-11

7. Troubleshooting

In This Chapter .............................................................................7-1

Troubleshooting Concepts ............................................................7-2

Symptoms and Solutions ..............................................................7-4

Connectivity Issues .................................................................7-4

AP Unit Will Not Boot - No LED Activity ............................7-4

Serial Link Does Not Work ...............................................7-4

Ethernet Link Does Not Work ...........................................7-5

Basic Software Setup and Configuration Problems ................7-6

Lost AP, Telnet, or SNMP Password ................................7-6

Client Computer Cannot Connect ....................................7-6

AP Has Incorrect IP Address ...........................................7-7

HTTP (browser) or Telnet Interface Does Not Work ........7-8

HTML Help Files Do Not Appear ......................................7-9

Telnet CLI Does Not Work ................................................7-9

TFTP Server Does Not Work ...........................................7-10

Client Connection Problems ...................................................7-11

Client Software Finds No Connection ..............................7-11

Client PC Card Does Not Work ........................................7-11

Intermittent Loss of Connection .......................................7-12

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Client Does Not Receive an IP Address -

Cannot Connect to Internet ..............................................7-12

VLAN Operation Issues ..........................................................7-13

Verifying Proper Operation of the VLAN Feature .............7-13

VLAN Workgroups ...........................................................7-13

What if network traffic is being directed to a

nonexistent host? ......................................................7-14

I have just configured the Management ID and

now I can't manage the AP? ......................................7-14

Active Ethernet (AE) ...............................................................7-14

The AP Does Not Work ....................................................7-14

There Is No Data Link ......................................................7-15

“Overload” Indications ......................................................7-16

Recovery Procedures ...................................................................7-16

Reset to Factory Default Procedure .......................................7-17

Forced Reload Procedure ......................................................7-18

Download a New Image Using ScanTool .........................7-20

Preparing to Download the AP Image .......................7-20

Download Procedure .................................................7-21

Download a New Image Using the Bootloader CLI ..........7-22

Preparing to Download the AP Image .......................7-23

Download Procedure .................................................7-23

Setting IP Address using Serial Port ......................................7-26

Hardware and Software Requirements ............................7-26

Attaching the Serial Port Cable ........................................7-26

Initializing the IP Address using CLI .................................7-27

Related Applications .....................................................................7-30

RADIUS Authentication Server ...............................................7-30

TFTP Server ...........................................................................7-31

8 Avaya Wireless AP-3 User’s Guide

AP-3 User’s Guide Table of Contents

A. Command Line Interface

In This Appendix ...........................................................................A-1

General Notes ...............................................................................A-2

Prerequisite Skills and Knowledge .........................................A-2

Notation Conventions .............................................................A-2

Important Terminology ............................................................A-3

Navigation and Special Keys ..................................................A-5

CLI Error Messages ................................................................A-6

Command Line Interface (CLI) Variations......................................A-7

Bootloader CLI ........................................................................A-7

CLI Command Types ....................................................................A-11

Operational CLI Commands ...................................................A-11

? (List Commands) ...........................................................A-12

Example 1. Display Command list .............................A-13

Example 2. Display specific Commands ...................A-13

Example 3. Display parameters for set and show .....A-14

Example 3a. Display every parameter that

can be changed .........................................................A-15

Example 3b. Display parameters based

on letter sequence .....................................................A-16

Example 4. Display Prompts for

Successive Parameters .............................................A-17

done, exit, quit ..................................................................A-18

download ..........................................................................A-18

help ..................................................................................A-19

history ...............................................................................A-20

passwd .............................................................................A-20

reboot ...............................................................................A-21

search ..............................................................................A-21

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AP-3 User’s Guide Table of Contents

upload ..............................................................................A-22

Parameter Control Commands ...............................................A-23

“show” CLI Command ......................................................A-23

“set” CLI Command ..........................................................A-24

Configuring Objects that Require Reboot ........................A-25

Example 1: Configuring objects that require the

device to be rebooted ................................................A-25

Example 2: Executing the “exit”, “quit”, or “done” commands when an object that requires reboot has

been configured .........................................................A-26

“set” and “show” Command Examples .............................A-27

Example 1 - Set the Access Point IP

Address Parameter ....................................................A-27

Example 2 - Create a table entry or row ....................A-28

Example 3 - Modify a table entry or row ....................A-28

Example 4 - Enable, Disable, or Delete a

table entry or row .......................................................A-29

Example 5 - Show the Group Parameters .................A-30

Example 6 - Show Individual & Table Parameters A-31

Using Tables & User Strings .........................................................A-32

Working with Tables ...............................................................A-32

Using Strings ..........................................................................A-34

Configuring the AP using CLI commands .....................................A-36

Log into the AP using HyperTerminal .....................................A-36

Log into the AP using Telnet ..................................................A-37

Set Basic Configuration Parameters .............................................A-38

Set System Name, Location and Contact Information .....A-38

Set Static IP Address for the AP ......................................A-39

Change Passwords ..........................................................A-40

Set Network Names for the Wireless Interface ................A-40

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AP-3 User’s Guide Table of Contents

Set WEP Encryption for the Wireless Interface ................A-42

Download an AP Configuration File from your

TFTP Server .....................................................................A-43

Backup your AP Configuration File ..................................A-44

Other Network Settings .................................................................A-45

Configure the AP as a DHCP Server ................................A-46

Configure the DNS Client .................................................A-47

Maintain Client Connections using Link Integrity .............A-48

Change your Wireless Interface Settings .........................A-48

Operational Mode (802.11b/g) ...................................A-49

Autochannel Select (ACS) .........................................A-49

Enable/Disable Closed System .................................A-49

Enable/Disable Interference Robustness

(802.11b Only) ...........................................................A-49

Enable/Disable Load Balancing (802.11b Only) ........A-50

Enable/Disable Medium Density Distribution

(802.11b Only) ...........................................................A-50

Set the Distance Between APs (802.11b Only)..........A-50

Set the Multicast Rate (802.11b Only) .......................A-51

Set Ethernet Speed and Transmission Mode....................A-51

Set Interface Management Services ................................A-52

Edit Management IP Access Table ...........................A-52

Configure Management Ports ....................................A-52

Set Communication Ports ..........................................A-53

Set Telnet Session Timeouts .....................................A-53

Configure Serial Port Interface ..................................A-53

Configure Syslog ..............................................................A-54

Configure Intra BSS .........................................................A-54

Configure MAC Access Control .......................................A-55

Setup MAC (Address) Access Control ......................A-55

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AP-3 User’s Guide Table of Contents

Add an Entry to the MAC Access Control Table ........A-55

Disable or Delete an Entry in the MAC

Access Control Table ................................................A-55

Configure Authentication Mode ........................................A-56

Set Pre-Shared Key (WPA-PSK Mode) .....................A-57

Set RADIUS Parameters ..................................................A-57

Configure RADIUS Authentication server ..................A-57

Enable RADIUS MAC Access Control .......................A-58

Set MAC Address Format Type .................................A-58

Set Authorization Lifetime ..........................................A-58

Enable RADIUS Accounting ......................................A-59

Configure RADIUS Accounting server .......................A-60

Set VLAN/SSID Parameters ............................................A-60

Enable VLAN Management .......................................A-61

Disable VLAN Management .......................................A-61

Add an Entry to the VLAN ID Table ...........................A-61

CLI Monitoring Parameters ............................................................A-62

Parameter Tables .........................................................................A-63

System Parameters ................................................................A-66

Inventory Management Information .................................A-68

Network Parameters ...............................................................A-68

IP Configuration Parameters ............................................A-68

DNS Client for RADIUS Name Resolution ................A-69

DHCP Server Parameters ................................................A-70

DHCP Server table for IP pools .................................A-70

Link Integrity Parameters .................................................A-72

Link Integrity IP Target Table ....................................A-72

Interface Parameters ..............................................................A-73

Wireless Interface Parameters .........................................A-73

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AP-3 User’s Guide Table of Contents

Common Parameters to 802.11a, 802.11b,

and 802.11b/g APs ....................................................A-73

802.11a Only Parameters ..........................................A-74

802.11b Only Parameters ..........................................A-75

802.11b/g Only Parameters .......................................A-77

Wireless Distribution System (WDS) Parameters

(802.11b Only) ...........................................................A-81

Ethernet Interface Parameters .........................................A-81

Management Parameters .......................................................A-82

SNMP Parameters ...........................................................A-82

HTTP (web browser) Parameters ....................................A-83

Telnet Parameters ............................................................A-84

Serial Port Parameters .....................................................A-85

TFTP Server Parameters .................................................A-86

IP Access Table Parameters ............................................A-87

Filtering Parameters ...............................................................A-87

Ethernet Protocol Filtering Parameters ............................A-88

Ethernet Filtering Table .............................................A-89

Static MAC Address Filter Table .......................................A-90

Proxy ARP Parameters ....................................................A-91

IP ARP Filtering Parameters ............................................A-91

Broadcast Filtering Table ..................................................A-92

TCP/UDP Port Filtering ....................................................A-93

TCP/UDP Port Filtering Table ...................................A-93

Alarms Parameters .................................................................A-96

SNMP Table Host Table Parameters ................................A-96

Syslog Parameters ...........................................................A-97

Syslog Host Table .....................................................A-98

Bridge Parameters ..................................................................A-99

Spanning Tree Parameters ..............................................A-99

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AP-3 User’s Guide Table of Contents

Spanning Tree Priority and Path Cost Table .............A-100

Storm Threshold Parameters ...........................................A-101

Storm Threshold Table ..............................................A-101

Intra BSS Subscriber Blocking .........................................A-102

Packet Forwarding Parameters ........................................A-102

Security Parameters ...............................................................A-104

Pre-Shared Key Configuration Table

(WPA-PSK Mode) .....................................................A-105

Wireless Interface Security Parameters ...........................A-106

Security Encryption Key Length Table ......................A-107

MAC Access Control Parameter ......................................A-107

MAC Access Control Table .......................................A-108

RADIUS Parameters ..............................................................A-108

Primary and Backup RADIUS Server

Table Parameters .............................................................A-108

General RADIUS Parameters ....................................A-109

RADIUS Authentication .............................................A-110

RADIUS Accounting ..................................................A-111

VLAN/SSID Parameters .........................................................A-112

VLAN ID Table ..................................................................A-113

Other Parameters ...................................................................A-114

IAPP Parameters .............................................................A-114

SpectraLink VoIP Parameters (802.11b Only) ..................A-115

B. ASCII Character Chart

Description ....................................................................................B-1

14 Avaya Wireless AP-3 User’s Guide

AP-3 User’s Guide Table of Contents

C. Specifications

In This Appendix ...........................................................................C-1

Software Features .........................................................................C-1

Management Functions ..........................................................C-2

Advanced Bridging Functions .................................................C-3

Medium Access Control (MAC) Functions .............................C-3

Security Functions .................................................................C-4

Network Functions .................................................................C-5

Advanced Wireless Functions ...............................................C-6

Hardware Specifications ...............................................................C-7

Physical Specifications .....................................................C-7

AP-3 Unit ...................................................................C-7

802.11a Antenna Adapter ..........................................C-7

Electrical Specifications ....................................................C-7

Without Active Ethernet Module ................................C-7

With Active Ethernet Module .....................................C-7

Environmental Specifications ...........................................C-8

AP-3 Unit ...................................................................C-8

802.11a Antenna Adapter ..........................................C-8

Ethernet Interface .............................................................C-8

Serial Port Interface .........................................................C-8

Active Ethernet Interface ..................................................C-9

HTTP Interface .................................................................C-9

Radio Specifications .....................................................................C-9

802.11a Channel Frequencies ...............................................C-10

802.11b Channel Frequencies ...............................................C-12

802.11g Channel Frequencies ...............................................C-13

Wireless Communication Range ............................................C-15

802.11b Wireless Communication Ranges ......................C-16

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AP-3 User’s Guide Table of Contents

802.11a (5 GHz Upgrade Kit) Wireless

Communication Ranges ...................................................C-17

802.11a (11a Upgrade Kit) Wireless Communication

Ranges .............................................................................C-18

802.11b/g Wireless Communication Ranges ...................C-19

D. Technical Support

Before You Seek Help ..................................................................D-1

16 Avaya Wireless AP-3 User’s Guide

Introduction

In This Chapter

The following topics are covered in this section:

• Document Conventions

• Introduction to Wireless Networking

• IEEE 802.11 Specifications

• Management and Monitoring Capabilities

Document Conventions

• The term, AP, refers to an Access Point.

• The term, 802.11, is used to describe features that apply to the

802.11a, 802.11b, and 802.11g wireless standards.

• A Dual-radio AP is an Access Point that includes two radios; it can support one or two IEEE radio standards (depending on the type of radios installed). The AP-3 is a Dual-radio AP.

• An 802.11a AP is an Access Point that supports the IEEE 802.11a standard.

• An 802.11b AP is an Access Point that supports the IEEE 802.11b standard.

• An 802.11b/g AP is an Access Point that supports the IEEE 802.11g

Avaya Wireless AP-3 User’s Guide 1-1

Introduction to Wireless Networking

standard.

• Blue text indicates a link to a topic or Web address. If you are

viewing this documentation on your computer, click the blue text to jump to the linked item.

NOTE:

A Note indicates important information that helps you make better use of your computer.

CAUTION:

A Caution indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.

Introduction to Wireless Networking

An AP extends the capability of an existing Ethernet network to devices on a wireless network. Wireless devices can

• connect to a single Access Point, or

• move between multiple Access Points located within the same

vicinity. As wireless clients move from one coverage cell to another, the devices maintain network connectivity.

1-2 Avaya Wireless AP-3 User’s Guide

Introduction to Wireless Networking

Site Survey

To determine the best location for an Access Point, Avaya recommends conducting a Site Survey before placing the device in its final location. For information about how to conduct a Site Survey, contact your local reseller.

Before an Access Point can be configured for your specific networking requirements, it must first be initialized. See Getting Started for details.

Figure 1-1. Typical wireless network access infrastructure

Avaya Wireless AP-3 User’s Guide 1-3

Introduction to Wireless Networking

Once initialized, the network administrator can configure each unit according to the network’s requirements. The AP functions as a wireless network access point to data networks. An AP network provides:

• Seamless client roaming

• Easy installation and operation

• Over-the-air encryption of data

• High speed network links

To be fully operational, the AP-3 needs at least one wireless card installed.

Guidelines for Roaming

Wireless Standard Support

An AP can only communicate with client devices that support its wireless standard. For example, an 802.11a client cannot communicate with an

802.11b AP and an 802.11b client cannot communicate with an 802.11a AP. However, both 802.11b and 802.11g clients can communicate with an 802.11b/g AP.

1-4 Avaya Wireless AP-3 User’s Guide

Introduction to Wireless Networking

Network Names

• All Access Points must have the same Network Name to support client roaming.

• All workstations with an 802.11 client adapter installed must use either a Network Name of “any” or the same Network Name as the Access Points that they will roam between. If an AP has Closed System enabled, a client must have the same Network Name as the Access Point to communicate (see Interfaces).

Security Settings

All Access Points and clients must have the same security settings to communicate.

Cell Coverage

• The Access Points’ cells must overlap to ensure that there are no gaps in coverage and to ensure that the roaming client will always have a connection available.

• The coverage area of an 802.11b or 802.11b/g AP is larger than the coverage area of an 802.11a AP. The 802.11b and 802.11b/g APs operate in the 2.4 GHz frequency band; the 802.11a AP operates in the 5 GHz band. Products that operate in the 2.4 GHz band offer greater range than products that operate in the 5 GHz band.

Avaya Wireless AP-3 User’s Guide 1-5

IEEE 802.11 Specifications

Data Rates

An 802.11a or 802.11b/g AP operates at faster data rates than the

802.11b AP. 802.11a and 802.11g products operate at speeds of up to 54 Mbits/sec; 802.11b products operate at speeds of up to 11 Mbits/sec.

Channels

• All Access Points in the same vicinity should use a unique, independent Channel. By default, the AP automatically scans for available Channels during boot-up but you can also set the Channel manually (see Interfaces for details).

• Access Points that use the same Channel should be installed as far away from each other as possible to reduce potential interference.

IEEE 802.11 Specifications

In 1997, the Institute of Electrical and Electronics Engineers (IEEE) adopted the 802.11 standard for wireless devices operating in the 2.4 GHz frequency band. This standard includes provisions for three radio technologies: direct sequence spread spectrum, frequency hopping spread spectrum, and infrared. Devices that comply with the 802.11 standard operate at a data rate of either 1 or 2 Megabits per second (Mbits/sec).

1-6 Avaya Wireless AP-3 User’s Guide

IEEE 802.11 Specifications

802.11b

In 1999, the IEEE modified the 802.11 standard to support direct sequence devices that can operate at speeds of up to 11 Mbits/sec. The IEEE ratified this standard as 802.11b. 802.11b devices are backwards compatible with 2.4 GHz 802.11 direct sequence devices (that operate at 1 or 2 Mbits/sec). Available Frequency Channels vary by regulatory domain and/or country. See 802.11b Channel Frequencies for details.

802.11a

Also in 1999, the IEEE modified the 802.11 standard to support devices operating in the 5 GHz frequency band. This standard is referred to as

802.11a. 802.11a devices are not compatible with 2.4 GHz 802.11 or

802.11b devices. 802.11a radios use a radio technology called Orthogonal Frequency Division Multiplexing (OFDM) to achieve data rates of up to 54 Mbits/sec. Available Frequency Channels vary by regulatory domain and/or country. See 802.11a Channel Frequencies for details.

802.11g

In 2003, the IEEE introduced the 802.11g standard. 802.11g devices operate in the 2.4 GHz frequency band using OFDM to achieve data rates of up to 54 Mbits/sec. In addition, 802.11g devices are backwards compatible with 802.11b devices. Available Frequency Channels vary by regulatory domain and/or country. See 802.11g Channel Frequencies for details.

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Management and Monitoring Capabilities

There are three management and monitoring interfaces available to the network administrator to configure and manage an AP on the network:

• HTTP Interface

• Command Line Interface

• SNMP Management

HTTP Interface

The HTTP Interface (also known as the Web browser Interface) provides easy access to configuration settings and network statistics from any computer on the network. You can access the HTTP Interface:

• over your LAN (switch, hub, etc.),

• over the Internet, or

• with a “crossover” Ethernet cable connected directly to your

computer’s Ethernet Port.

Command Line Interface

The Command Line Interface (CLI) is a text-based configuration utility that supports a set of keyboard commands and parameters to configure and manage an AP.

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Management and Monitoring Capabilities

Users enter Command Statements, composed of CLI Commands and their associated parameters. Statements may be issued from the keyboard for real time control, or from scripts that automate configuration.

For example, when downloading a file, administrators enter the download CLI Command along with IP Address, file name, and file type parameters.

How To Access the CLI

You access the CLI over a HyperTerminal serial connection or via Telnet.

During initial configuration, you can use the CLI over a serial port connection to configure an Access Point’s IP address.

When accessing the CLI via Telnet, you can communicate with the Access Point from over your LAN (switch, hub, etc.), from over the Internet, or with a “crossover” Ethernet cable connected directly to your computer’s Ethernet Port.

See Command Line Interface (CLI) for more information on the CLI and for a list of CLI commands and parameters.

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Management and Monitoring Capabilities

SNMP Management

You can also manage and configure an AP using the Simple Network Management Protocol (SNMP).

NOTE:

This requires an SNMP manager program, like HP Openview or Castlerock’s SNMPc.

The AP supports several Management Information Base (MIB) files that describe the parameters that can be viewed and/or configured over SNMP:

• MIB-II (RFC 1213)

• Bridge MIB (RFC 1493)

• Ethernet-like MIB (RFC 1643)

• 802.11 MIB

• Avaya Wireless Enterprise MIB

Avaya provides these MIB files on the CD included with each Access Point. You need to compile one or more of the above MIBs into your SNMP program’s database before you can manage an Access Point using SNMP. Refer to the documentation that came with your SNMP manager for instructions on how to compile MIBs.

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