ZyXEL Communications NWA 1121-NI -, User Manual

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Chapter 6 Wireless LAN
NWA1121-NI User’s Guide
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In the figure above, wireless clients A and B are trying to access the Internet via the NWA1121-NI.
The NWA1121-NI in turn queries the RADIUS server if the identity of clients A and U are allowed
access to the Internet. In this scenario, only client
U ’s identity is verified by the RADIUS server and
allowed access to the Internet.
The RADIUS server handles the following tasks:
• Authentication which determines the identity of the users.
• Authorization which determines the network services available to authenticated users once
they are connected to the network.
• Accounting which keeps track of the client’s network activity.
RADIUS is a simple package exchange in which your AP acts as a message relay between the
wireless client and the network RADIUS server.
You should know the IP addresses, ports and share secrets of the external RADIUS server and/or
the external RADIUS accounting server you want to use with your NWA1121-NI. You can configure
a primary and backup RADIUS and RADIUS accounting server for your NWA1121-NI.
6.4 Wireless Settings Screen
Use this screen to choose the operating mode for your NWA1121-NI. Click Network > Wireless
LAN > Wireless Settings . The screen varies depending upon the operating mode you select.