Users Guide

Security Commands 1079
authentication periodic
Use the authentication periodic command in Interface Configuration mode
to enable periodic re-authentication of the client. To return to the default
setting, use the no form of this command.
Syntax
authentication periodic
no authentication periodic
Default Configuration
Periodic reauthentication is disabled.
Command Mode
Interface Configuration (Ethernet) mode
User Guidelines
It is possible to configure the periodic re-authentication timer by sending the
IETF Session-Timeout attribute in the RADIUS Access-Accept. If periodic
re-authentication is not enabled, the session will be terminated and the
802.1X client will need to authenticate again to access the network.
If re-authentication is enabled, the switch will initiate re-authentication and
terminate the session only if the client fails re-authentication.
Command History
Command updated in version 6.6 firmware.
Example
The following example enables periodic reauthentication of the client.
console(config)# interface gigabitethernet 1/0/16
console(config-if-Gi1/0/16)# authentication periodic