Allied-telesis AT 8000/8POE User Manual download pdf (Page 176)

Chapter 13: 802.1x Network Access Control

176 Section I: Using the Menus Interface

802.1x Network Access Control Overview

802.1x Network Access Control (IEEE 802.1x) is used to control who can

send traffic through and receive traffic from a switch port. With this feature,

the switch will not allow an end node to send or receive traffic through a

port until the user of the node logs on by entering a username and

password.

This feature can prevent an unauthorized individual from connecting a

computer to a switch port or using an unattended workstation to access

your network resources. Only those users to whom you have assigned a

username and password will be able to use the switch to access the

network.

This feature must be used with the RADIUS authentication protocol and

requires that there be a RADIUS server on your network. The RADIUS

server performs the authentication of the username and password

combinations.

Note

RADIUS with Extensible Authentication Protocol (EAP) extensions

is the only supported authentication server for this feature.

Following are several terms to keep in mind when using this feature.

 Supplicant - A supplicant is an end user or end node

that wants to access the network through a switch port.

A supplicant is also referred to as a client.

 Authenticator - The authenticator is a port on the

switch that prohibits network access by a supplicant

until the network user has entered a valid username

and password.

 Authentication server - The authentication server is the

network device that has the RADIUS server software.

This is the device that does the actual authenticating of

the user names and passwords from the supplicants.

The AT-8000/8POE Fast Ethernet switch does not authenticate the

usernames and passwords from the end users. Rather, the switch acts as

an intermediary between a supplicant and the authentication server during

the authentication process.

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Allied-telesis AT 8000/8POE User Manual Page 176