Cisco Systems 3560-X, 3750-X - page 345

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Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-21521-01
Chapter 11 Configuring IEEE 802.1x Port-Based Authentication Configuring 802.1x Authentication
To return to the RADIUS server default settings, use the no radius-server dead-criteria, the no
radius-server deadtime, and the no radius-server host global configuration commands. To return to
the default settings of inaccessible authentication bypass, use the no dot1x critical {eapol | recovery
delay} global configuration command. To disable inaccessible authentication bypass, use the no dot1x
critical interface configuration command.
This example shows how to configure the inaccessible authentication bypass feature:
Switch(config)# radius-server dead-criteria time 30 tries 20
Switch(config)# radius-server deadtime 60
Switch(config)# radius-server host 1.1.1.2 acct-port 1550 auth-port 1560 test username
user1 idle-time 30 key abc1234
Switch(config)# dot1x critical eapol
Switch(config)# dot1x critical recovery delay 2000
Switch(config)# interface gigabitethernet 1/0/1
Switch(config)# radius-server deadtime 60
Step 5 dot1x critical {eapol | recovery
delay milliseconds}
(Optional) Configure the parameters for inaccessible authentication bypass:
eapol—Specify that the switch sends an EAPOL-Success message when the
switch successfully authenticates the critical port.
recovery delay milliseconds—Set the recovery delay period during which the
switch waits to re-initialize a critical port when a RADIUS server that was
unavailable becomes available. The range is from 1 to 10000 milliseconds. The
default is 1000 milliseconds (a port can be re-initialized every second).
Step 6 interface interface-id Specify the port to be configured, and enter interface configuration mode. For the
supported port types, see the “802.1x Authentication Configuration Guidelines”
section on page 11-36.
Step 7 authentication event server
dead action [ authorize |
reinitialize ] vlan vlan-id
Use these keywords to move hosts on the port if the RADIUS server is
unreachable:
• authorize–Move any new hosts trying to authenticate to the user-specified
critical VLAN.
• reinitialize–Move all authorized hosts on the port to the user-specified
critical VLAN.
Step 8 dot1x critical [recovery action
reinitialize | vlan vlan-id]
Enable the inaccessible authentication bypass feature, and use these keywords to
configure the feature:
• recovery action reinitialize—Enable the recovery feature, and specify that
the recovery action is to authenticate the port when an authentication server
is available.
• vlan vlan-id—Specify the access VLAN to which the switch can assign a
critical port. The range is from 1 to 4094.
Step 9 end Return to privileged EXEC mode.
Step 10 show authentication
interface-id
or
show dot1x [interface
interface-id]
(Optional) Verify your entries.
Step 11 copy running-config
startup-config (Optional) Save your entries in the configuration file.
Command Purpose