8-14
Cisco ME 3400 EthernetAccess Switch SoftwareConfiguration Guide
78-17058-01
Chapter8 Configuring IEEE 802.1x Port-Based Authentication
Configuring IEEE 802.1x Authentication
This example shows how to enable periodic re-authentication and set the number of seconds between
re-authentication attempts to 4000:
Switch(config-if)# dot1x reauthentication
Switch(config-if)# dot1x timeout reauth-period 4000
Manually Re-Authenticating a Client Connected to a Port
You can manually re-authenticate the client connected to a specific por t at any time by entering the dot1x
re-authenticate interface interface-id privileged EXEC command. This step is optional. If you want to
enable or disable periodic re-authentication, see the “Configuring Periodic Re-Authentic ation ” section
on page 8-13.
This example shows how to manually re-authenticate the client conne cte d to a p ort:
Switch# dot1x re-authenticate interface gigabitethernet0/1
Changing the Quiet Period
When the switch cannot authenticate the client, the switch remains idle for a set period of time and then
tries again. The dot1x timeout quiet-period interface configuration command controls the idle pe riod.
A failed authentication of the client might occur because the cl ient provi ded a n invalid password. You
can provide a faster response time to the user by entering a smaller number than the default.
Beginning in privileged EXEC mode, follow these steps to change the quiet per iod. T his pro cedur e is
optional.
To return to the default quiet time, use the no dot1x timeout quiet-period interface configuration
command.
This example shows how to set the quiet time on the switch to 30 seconds:
Switch(config-if)# dot1x timeout quiet-period 30
Command Purpose
Step1 configure terminal Enter global configuration mode.
Step2 interface interface-id Specify the port to be configured, and enter interface configuration mode.
Step3 dot1x timeout quiet-period seconds Set the number of seconds that the switch remains in the quiet state
following a failed authentication exchange with the client.
The range is 1 to 65535 seconds; the default is 60.
Step4 end Return to privileged EXEC mode.
Step5 show dot1x interface interface-id Verify your entries.
Step6 copy running-config startup-config (Optional) Save your entries in the configuration file.