Basic sequence (initiate EAP) Client Server NAS Diameter-EAP-RequestEAP-Payload(EAP start) Diameter-EAP-AnswerResult-Code=SUCCESSEAP-Master-Session-Key EAP-Payload(Success) EAPOL(Request(…)) EAPOL(Success) Diameter-EAP-AnswerResult-Code=MULTI_ROUND_AUTHEAP-Payload(Request(…)) Diameter-EAP-RequestEAP-Payload(Response(…)) EAPOL(Response (…)) (4-way handshake) |