The portal logout different-server enable command configures a device to process user logout requests sent by a Portal server other than the one from which users log in.
The undo portal logout different-server enable command restores the default configuration.
By default, a device does not process user logout requests sent by Portal servers other than the one from which users log in.
Usage Scenario
In a scenario where Portal server load balancing is configured, by default, a device does not process user logout requests sent by Portal servers other than the one from which users log in and responds ACK messages only to the Portal server from which users log in. Users in arrears then can still stay online. To prevent this problem, run portal logout different-server enable command to configure the device to process user logout requests sent by a Portal server other than the one from which users log in. Upon receipt of a user logout request from such a Portal server, the device starts a user logout process. After completing the logout event, the device responds an ACK message to the Portal server, thereby ensuring that the user logs out properly.
Precautions
The user logout requests that a device can process must be sent by Portal servers bound to an access interface. These servers include all the Portal servers configured in the master and backup Portal server templates bound to the interface.