ZyXEL Communications Prestige 320W Support Notes page 45

P320W Support Notes
When the client supplies its identity, the authenticator begins its role as the intermediary, passing EAP
frames between the supplicant and the authentication server until authentication succeeds or fails. If the
authentication succeeds, the switch port becomes authorized. The specific exchange of EAP frames
depends on the authentication method being used. The figure below shows a message exchange initiated
by the client using the MD5 Challenge authentication method with a RADIUS server.
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