Parameters
interface
Enter one of the following keywords and slot/port or number 
information:
• For a Gigabit Ethernet interface, enter the keyword 
GigabitEthernet followed by the slot/port information.
• For a Fast Ethernet interface, enter the keyword 
FastEthernet followed by the slot/port information.
• For a Ten-Gigabit Ethernet interface, enter the keyword 
TenGigabitEthernet followed by the slot/port 
information.
mac-address
(Optional) MAC address of a supplicant.
Defaults none
Command Modes
• EXEC
• EXEC privilege
Command History
Version 8.3.12.0 Introduced on the S4810.
Version 8.4.2.1 Added the mac-address option on the C-Series and S-Series.
Version 7.6.1.0 Introduced on the C-Series, E-Series, and S-Series.
Usage 
Information
C-Series and S-Series only: Enter a supplicant’s MAC address using the mac-address 
option to display information only on the 802.1X-enabled port to which the supplicant is 
connected.
If you enable 802.1X multi-supplicant authentication on a port, additional 802.1X configuration 
details (Port Authentication status, Untagged VLAN ID, Authentication PAE state, and Backend 
state) are displayed for each supplicant, as shown in the Example below.
Example
FTOS#show dot1x int Gi 2/32
802.1x information on Gi 2/32:
-----------------------------
Dot1x Status:           Enable
Port Control:           AUTO
Port Auth Status:       UNAUTHORIZED
Re-Authentication:      Disable
Untagged VLAN id:       None
Guest VLAN:             Enable
Guest VLAN id:          10
Auth-Fail VLAN:         Enable
Auth-Fail VLAN id:      11
Auth-Fail Max-Attempts: 3
Tx Period:              30 seconds
Quiet Period:           60 seconds
ReAuth Max:             2
Supplicant Timeout:     30 seconds
Server Timeout:         30 seconds
Re-Auth Interval:       3600 seconds
Max-EAP-Req:            2
Auth Type:              SINGLE_HOST
Auth PAE State:         Initialize
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