cisco certification online exam

cisco certification online exam.Session authentication phase: The authenticator first extracts the EAP message from the EAPoL frame and then sends a RADIUS Access-Request message to the authentication server, while adding the EAP information to the AV pair of the RADIUS message. The authenticator and the applicant agree on the authentication method (e.g., EAPTLS) based on the EAP information. The applicant will provide a password, certificate, token, etc. based on the negotiated authentication method.3. Session authorization phase: If the applicant successfully passes the authentication server, the authentication server will send a RADIUS Access-Accept message to the authenticator, which will contain additional authorization information, such as, VLAN number, downloadable access control list, and other information. The authenticator sends an EAP Success message to the applicant, and the applicant can start sending traffic.4. Session accounting phase: the RADIUS accounting message exchanged between the authenticator and the authentication server.Figure 4-19 shows the protocol messages exchanged between the three participating 802.IX devices during the four phases of 802.1X port access control.4.10 Implementation of Identity and Access Control Mechanisms 211authenticator Session Initiation Phase EAPoL Start ->! Discovery EAPoL: EAP Request-Identity iL I Zhu Pi WP-ResPsse: Alice RADIUSAccess-Request J[ ] [AVP: EAP-Response: Alice] * :EAPoL: EAP-Request: PEAP?O 2!- session authentication phase rEAPoL:EAP-Response:PEAPOK": [AVP: EAP-Request: PEAP?];; -----------------------------------------------RADIUS Access-Request [; : [AVP:EAP-Response:PEAPOK] M.