The 7705 SAR supports port-based network access control for Ethernet ports only. Each Ethernet port can be configured to operate in one of three different modes, controlled by the port-control command:
auto — enables 802.1x authentication. The port starts in the unauthorized state, allowing only EAPOL frames to be sent and received through the port. Both the authenticator and the host (supplicant) can initiate an authentication process as described earlier. The port will remain in the unauthorized state until the first supplicant is authenticated successfully. After this, traffic is allowed on the port for all connected hosts.
force-auth — disables 802.1x authentication and causes the port to transition to the authorized state without requiring any authentication exchange. The port transmits and receives normal traffic without requiring 802.1x-based host authentication. This is the default setting.
force-unauth — causes the port to remain in the unauthorized state, ignoring all attempts by the hosts to authenticate. The authenticator cannot provide authentication services to the host through the interface.