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Catalyst 6500 Series Switch Cisco IOS Software Configuration Guide—Release 12.1 E
78-14099-04
Chapter 25 Configuring IEEE 802.1X Port-Based Authentication
Displaying 802.1X Status
To allow multiple hosts (clients) on an 802.1X-authorized port that has the dot1x port-control interface
configuration command set to auto, perform this task:
This example shows how to enable 802.1X on Fast Ethernet interface 5/1 and to allow multiple hosts:
Router(config)# interface fastethernet 5/1
Router(config-if)# dot1x port-control auto
Router(config-if)# dot1x multi-hosts
Resetting the 802.1X Configuration to the Default Values
To reset the 802.1X configuration to the default values, perform this task:
Displaying 802.1X Status
To display global 802.1X administrative and operational status for the switch, use the show dot1x
privileged EXEC command. To display the 802.1X administrative and operational status for a specific
interface, use the show dot1x interface interface-id privileged EXEC command.
For detailed information about the fields in these displays, refer to the Catalyst 6500 Series Switch
Cisco IOS Command Reference publication.
Command Purpose
Step 1
Router(config)# interface type
1
slot/port
1. type = ethernet, fastethernet, gigabitethernet, or tengigabitethernet
Selects an interface to configure.
Step 2
Router(config-if)# dot1x multi-hosts
Allows multiple hosts (clients) on an 802.1X-authorized
port.
Make sure that the dot1x port-control interface
configuration command set is set to auto for the specified
interface.
Router(config-if)# no dot1x multi-hosts
Disables multiple hosts on the port.
Step 3
Router(config-if)# end
Returns to privileged EXEC mode.
Step 4
Router# show dot1x interface type
1
slot/port
Verifies your entries.
Command Purpose
Step 1
Router(config)# interface type
1
slot/port
1. type = ethernet, fastethernet, gigabitethernet, or tengigabitethernet
Selects an interface to configure.
Step 2
Router(config-if)# dot1x default
Resets the configurable 802.1X parameters to the default
values.
Step 3
Router(config-if)# end
Returns to privileged EXEC mode.
Step 4
Router# show dot1x all
Verifies your entries.
