Cisco NM-8B-U - HW ROUTERS L-M User Manual page 66

Configuration Tasks
Enabling Multiple Hosts
You can attach multiple hosts to a single 802.1x-enabled port as shown in
mode, only one of the attached hosts must be successfully authorized for all hosts to be granted network
access. If the port becomes unauthorized (reauthentication fails, and an EAPOL-logoff message is
received), all attached clients are denied access to the network.
Beginning in privileged EXEC mode, follow these steps to allow multiple hosts (clients) on an
802.1x-authorized port that has the dot1x port-control interface configuration command set to auto.
Command
Step 1
configure terminal
Step 2
interface interface-id
Step 3
dot1x multiple-hosts
Step 4
end
Step 5 show dot1x interface interface-id
Step 6
copy running-config startup-config
To disable multiple hosts on the port, use the no dot1x multiple-hosts interface configuration command.
Resetting the 802.1x Configuration to the Default Values
You can reset the 802.1x configuration to the default values with a single command.
Beginning in privileged EXEC mode, follow these steps to reset the 802.1x configuration to the default
values:
Command
Step 1 configure terminal
Step 2 dot1x default
Step 3
end
Step 4
show dot1x
Step 5 copy running-config startup-config
Displaying 802.1x Statistics and Status
To display 802.1x statistics for all interfaces, use the show dot1x statistics privileged EXEC command.
To display 802.1x statistics for a specific interface, use the show dot1x statistics interface interface-id
privileged EXEC command.
To display the 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.
Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ
66
16- and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series
Purpose
Enters global configuration mode.
Enters interface configuration mode, and specify the interface to which
multiple hosts are indirectly attached.
Allows multiple hosts (clients) on an 802.1x-authorized port.
Make sure that the dot1x port-control interface configuration command
is set to auto for the specified interface.
Returns to privileged EXEC mode.
Verifies your entries.
(Optional) Saves your entries in the configuration file.
Purpose
Enters global configuration mode.
Resets the configurable 802.1x parameters to the default values.
Returns to privileged EXEC mode.
Verifies your entries.
(Optional) Saves your entries in the configuration file.
Figure 3 on page 12. In this