Overview; Introduction To Local User Database; Introduction To Radius; Types Of Radius Messages - ZyXEL Communications ZyAIR G-3000 User Manual

Table 16 MAC Address Filter
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6.5 802.1x Overview
The IEEE 802.1x standard outlines enhanced security methods for both the authentication of
wireless stations and encryption key management. Authentication can be done using the local
user database internal to the ZyAIR (authenticate up to 32 users) or an external RADIUS
server for an unlimited number of users.

6.6 Introduction to Local User Database

By storing user profiles locally on the ZyAIR, your ZyAIR is able to authenticate wireless
users without interacting with a network RADIUS server. However, there is a limit on the
number of users you may authenticate in this way.

6.7 Introduction to RADIUS

RADIUS is based on a client-sever model that supports authentication and accounting, where
access point is the client and the server is the RADIUS server. The RADIUS server handles
the following tasks among others:
• Authentication
Determines the identity of the users.
• Accounting
Keeps track of the client's network activity.
RADIUS user is a simple package exchange in which your ZyAIR acts as a message relay
between the wireless station and the network RADIUS server.

6.7.1 Types of RADIUS Messages

The following types of RADIUS messages are exchanged between the access point and the
RADIUS server for user authentication:
• Access-Request
Sent by an access point, requesting authentication.
• Access-Reject
Chapter 6 Wireless Security
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ZyAIR G-3000 User's Guide
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