AirLive WT-2000PCI User Manual download pdf (Page 21)

AirLive WT-2000PCI User’s Manual

The IEEE 802.1X specification describes a protocol that can be used for authenticating both clients and

servers on a network. The authentication algorithms and methods are those provided by the Extensible

Authentication Protocol (EAP), a method of authentication that has been in use for a number of years

on networks that provide Point-to-Point Protocol (PPP) support as many internet service providers and

enterprises do.

When an AP acting as an authenticator detects a wireless station on the LAN, it sends an EAP-Request

for the user's identity to the device. (EAP, or the Extensible Authentication Protocol, is an authentication

protocol that runs before network layer protocols transmit data over the link.) In turn, the device

responds with its identity, and the AP relays this identity to an authentication server, which is typically

an external RADIUS server.

An example for MD5 Authentication

RADIUS

Server

Windows 2000 IAS

(Internet Authentication

Service)

IEEE 802.1x

Access Client

Access Point

RADIUS

Client

(2) Login with username,

password.

(1) Client requests to login the

network.

(4) Approve or deny user

(3) Send username, password to

RADIUS server.

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AirLive WT-2000PCI User Manual Page 21