Enabling client offline detection on the DHCP server

The client offline detection feature reclaims an assigned IP address and deletes the binding entry when the ARP entry for the IP address ages out.

The feature does not function if an ARP entry is manually deleted.

1. Enter system view.

   system-view

2. Enter interface view.

   interface interface-type interface-number

3. Enable client offline detection.

   dhcp client-detect

   By default, client offline detection is disabled on the DHCP server.