Configuration Guide     584
Configuring Network Security 802.1X Configuration
Switch(config)#interface gigabitEthernet 1/0/2
Switch(config-if)#dot1x
Switch(config-if)#dot1x port-method port-based
Switch(config-if)#dot1x port-control auto
Switch(config-if)#show dot1x interface gigabitEthernet 1/0/2
 Port           State          GuestVLAN     PortControl     PortMethod             Authorized         LAG
 ----             -----             ---------            --------               --------                 --------------      ---
 Gi1/0/2     enabled     disabled           auto                   port-based          unauthorized   N/A
Switch(config-if)#end
Switch#copy running-config startup-config