Configuring Periodic Re-Authentication
You can enable periodic 802.1x client re-authentication and specify how often it occurs. If you do not specify
a time period before enabling re-authentication, the number of seconds between attempts is 3600.
Beginning in privileged EXEC mode, follow these steps to enable periodic re-authentication of the client and
to configure the number of seconds between re-authentication attempts. This procedure is optional.
SUMMARY STEPS
1.
configure terminal
2.
interface interface-id
3.
authentication periodic
4.
authentication timer {{[inactivity | reauthenticate | restart]} {value}}
5.
end
DETAILED STEPS
PurposeCommand or Action
Enters the global configuration mode.configure terminal
Example:
Switch# configure terminal
Step 1
Specifies the port to be configured, and enter interface configuration
mode.
interface interface-id
Example:
Switch(config)# interface
Step 2
gigabitethernet2/0/1
Enables periodic re-authentication of the client, which is disabled by
default.
authentication periodic
Example:
Switch(config-if)# authentication
Step 3
The default value is 3600 seconds. To change the value of the
reauthentication timer or to have the switch use a
RADIUS-provided session timeout, enter the authentication
timer reauthenticate command.
Note
periodic
Sets the number of seconds between re-authentication attempts.authentication timer {{[inactivity |
reauthenticate | restart]} {value}}
Step 4
The authentication timer keywords have these meanings:
Example:
Switch(config-if)# authentication
• inactivity—Interval in seconds after which if there is no activity
from the client then it is unauthorized
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)
1368
How to Configure 802.1x Port-Based Authentication
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