Configuring 802.1X With Vlan Assignment - Cisco Catalyst 4500 series Administration Manual

Chapter 46 Configuring 802.1X Port-Based Authentication
Switch# clear errdisable interface
Switch(config)# interface interface-id
Switch(config-if)# shutdown
Switch(config-if)# end
Switch# show errdisable detect
Switch# copy running-config startup-config
This example shows how to configure the switch to shut down any VLAN on which a security violation
error occurs:
Switch(config)# errdisable detect cause security-violation shutdown vlan
This example shows how to re-enable all VLANs that were error disabled on port Gi4/0/2:
Switch# clear errdisable interface GigabitEthernet4/0/2 vlan
You can verify your settings by entering the show errdisable detect privileged EXEC command.

Configuring 802.1X with VLAN Assignment

For enabling dynamic VLAN assignment, no additional configuration is required in the switch. For
information on configuring Multiple- authentication (MDA), refer to the
Authentication and Multiple Authorization" section on page
must configure the Cisco ACS server.
To enable 802.1X with VLAN assignment, perform this task:
Command
Step 1
Switch# configure terminal
Step 2
Switch(config)# interface
interface-id
Step 3
Switch(config-if)# switchport
access vlan-id
Step 4
Switch(config-if)# switchport mode
access
Step 5
Switch(config-if)# switchport voice
vlan vlan-id
Step 6
Switch(config-if)# authentication
host-mode multi-domain
Step 7
Switch(config-if)# authentication
port-control auto
Step 8
Switch(config-if)# dot1x pae
authenticator
Step 9
Switch(config)# end
Step 10
Switch# show dot1x interface
interface-id details
Step 11
Switch# copy running-config
startup-config
OL_28731-01
interface-id
vlan
Purpose
Enters global configuration mode.
Enters interface configuration mode.
Sets the VLAN for a switched interface in access mode.
Specifies a nontrunking, nontagged single VLAN Layer 2 interface.
Sets the voice VLAN for the interface.
Enables MDA on the interface.
Enables 802.1X authentication on the interface.
Enables 802.1X authentication on the port with default parameters.
Refer to the "Default 802.1X Configuration" section on page
Returns to privileged EXEC mode.
(Optional) Verifies your entries.
(Optional) Saves your entries in the configuration file.
Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E
Configuring 802.1X Port-Based Authentication
vlan-list
[ ]
"Configuring Multiple Domain
46-36. To enable VLAN assignment, you
46-30.
46-77