Avaya Business Secure Router 252 Configuration - Basics Instrukcja Użytkownika Pobierz pdf (Strona 312)

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312 Chapter 16 IEEE 802.1x

NN47923-500

• Access-Request

Sent by the Business Secure Router requesting authentication.

• Access-Reject

Sent by a RADIUS server rejecting access.

• Access-Accept

Sent by a RADIUS server allowing access.

• Access-Challenge

Sent by a RADIUS server requesting more information in order to allow

access. The Business Secure Router sends a proper response from the user and

then sends another Access-Request message.

The following types of RADIUS messages are exchanged between the Business

Secure Router and the RADIUS server for user accounting:

• Accounting-Request

Sent by the Business Secure Router requesting accounting.

• Accounting-Response

Sent by the RADIUS server to indicate that it has started or stopped

accounting.

In order to ensure network security, the Business Secure Router and the RADIUS

server use a shared secret key, which is a password they both know. The key is not

sent over the network. In addition to the shared key, password information

exchanged is also encrypted to protect the network from unauthorized access.

EAP Authentication overview

EAP (Extensible Authentication Protocol) is an authentication protocol that runs

on top of the IEEE 802.1x transport mechanism in order to support multiple types

of user authentication. By using EAP to interact with an EAP-compatible

RADIUS server, the Business Secure Router helps a user’s computer and a

RADIUS server perform authentication.

The type of authentication you use depends on the RADIUS server or the AP.

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