Configuring the re-authentication period

After a successful authentication, a user remains authenticated for a duration of time. At the end of this duration, the host is automatically logged off. The user must be re-authenticated again. To set the number of seconds a host remains authenticated before being logged off, enter a command such as the following.

device(config-vlan-10-webauth)# reauth-time 10

You can specify 0 through 128000 seconds. The default is 28800 seconds, and 0 means the user is always authenticated and will never have to re-authenticate, except if an inactive period less than the re-authentication period is configured on the Web Authentication VLAN. If this is the case, the user becomes de-authenticated if there is no activity and the timer for the inactive period expires.