ZyXEL Communications MAX-206M1R User Manual

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 Chapter 7 The WAN Configuration Screens
User’s Guide
79
Authentication
When authenticating a user, the base station uses a third-party RADIUS or 
Diameter server known as an AAA (Authentication, Authorization and Accounting) 
server to authenticate the mobile or subscriber stations. 
The following figure shows a base station using an AAA server to authenticate 
mobile station MS, allowing it to access the Internet.
Figure 26   Using an AAA Server
In this figure, the dashed arrow shows the PKM (Privacy Key Management) 
secured connection between the mobile station and the base station, and the solid 
arrow shows the EAP secured connection between the mobile station, the base 
station and the AAA server. See the WiMAX security appendix for more details.