User's Manual Part 5

Access / One

Network

190 Glossary of Terms

OFDM

(Orthogonal Frequency Division Multiplexing) A technique that splits a wide

frequency band into a number of narrow frequency bands and sends data across

the sub-channels. The 802.11a and 802.11g standards are based on OFDM. See

also, 802.11a and 802.11g.

open system authentication

The IEEE 802.11 default authentication method. The device sends an

authentication management frame containing the sender's identify in the clear

to the authenticating device which sends back a clear frame alerting whether it

recognizes the identity of the requesting device. See also, 802.11x.

PAN

(Personal Area Network) A personal area network is used to interconnect

devices used by an individual or in their immediate proximity, including devices

they are carrying with them and devices that are simply nearby. According to

the IEEE, PANs must be capable of supporting segments at least 10 meters in

length.

PAP

(Password Authentication Protocol) One of two authentication methods that is

part of PPP (CHAP is the other). PAP is a method for a device to authenticate

itself with a two-way handshake. Note that PAP sends its authentication

information in the clear; that is, not encrypted. PAP is defined in RFC 1334.

PCI devices

Devices that adhere to the Peripheral Component Interconnect/Interface.

PEAP

(Protected Extensible Authentication Protocol) An extension to the Extensible

Authentication Protocol with Transport Layer Security (EAP-TLS), developed by

Microsoft Corporation. TLS is used in PEAP Part 1 to authenticate the server

only, and thus avoids having to distribute user certificates to every client. PEAP

Part 2 performs mutual authentication between the EAP client and the server.