To implement 802.1x authentication, you must configure the RADIUS server and the WAP to implement RADIUS.
In a Microsoft network, Network Protection Services (NPS) provides RADIUS capabilities on the network. To deploy NPS for wireless networking, you must do the following:
Install the RADIUS server.
Add the RADIUS server to the RAS and IAS Servers group.
Define the RADIUS clients.
Define a Wireless Computer network access policy.
Define a Wireless User network access policy.
In Windows Server 2008, Internet Authentication Services no longer exists. Instead, the RADIUS features are deployed as a component of Network Policy Server (NPS). To install NPS on the computer ...