Configuration Guide     615
Configuring Network Security Configuration Examples
3)  Disable 802.1X authentication on port 1/0/2 and port 1/0/3. Enable 802.1X 
authentication on port 1/0/1, set the control mode as auto, and set the control type as 
MAC based.
Switch_A(config)#interface gigabitEthernet 1/0/2
Switch_A(config-if)#no dot1x
Switch_A(config-if)#exit
Switch_A(config)#interface gigabitEthernet 1/0/3
Switch_A(config-if)#no dot1x
Switch_A(config-if)#exit
Switch_A(config)#interface gigabitEthernet 1/0/1
Switch_A(config-if)#dot1x
Switch_A(config-if)#dot1x port-method mac-based
Switch_A(config-if)#dot1x port-control auto
Switch_A(config-if)#exit
Verify the Configurations
Verify the global configurations of 802.1X authentication:
Switch_A#show dot1x global
 802.1X State:                      Enabled
 Authentication Method:             EAP
 Handshake State:                   Enabled
 Guest VLAN State:                  Disabled
 Guest VLAN ID:                     N/A
 802.1X Accounting State:           Disabled
 Quiet-period State:                Enabled
 Quiet-period Timer:                10 sec.
 Max Retry-times For RADIUS Packet: 3
 Supplicant Timeout:                3 sec.