802.1X authentication
802.1X uses Extensible Authentication Protocol (EAP) to transport authentication information for the client, the authenticator, and the authentication server.
802.1X defines EAP over LAN (EAPOL) for passing EAP packets between the client and the authenticator over a WLAN. Between the authenticator and the authentication server, 802.1X delivers authentication information by using one of the following methods:
Encapsulates EAP packets in RADIUS by using EAP over RADIUS (EAPOR), as described in "EAP relay."
Extracts authentication information from the EAP packets and encapsulates the information in standard RADIUS packets, as described in "EAP termination."
For information about EAP packet encapsulation, see Security Configuration Guide.