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CHAPTER 9: 802.1X AUTHENTICATION APPLICATION
Authentication Behavior
The supplicant should pass the authentication process in order to use any service. After the supplicant enters a correct account and
password stored in RADIUS server, it can be authenticated successfully.
Supplicant (client) Industrial Ethernet
Switch
RADIUS server
EAPOL — Start
EAP — Request/Identity
EAP — Response/Identity
EAP — Request
EAP — Response
EAP — Success
RADIUS — Access/Request
RADIUS — Access/Challenge
RADIUS — Access/Request
RADIUS — Access/Accept
Port Authorized
FIGURE 9-4. AUTHENTICATION PROCESS
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