Given: ABC Company has recently installed a WLAN controller and configured it to support WPA2-Enterprise...

The WLAN controller polls the RADIUS server for a complete list of authenticated users and groups after each user authentication.

The RADIUS server sends a group name return list attribute to the WLAN controller during every successful user authentication.

The RADIUS server forwards the request for a group attribute to an LDAP database service, and LDAP sends the group attribute to the WLAN controller.

The RADIUS server sends the list of authenticated users and groups to the WLAN controller as part of a 4-Way Handshake prior to user authentication.