ctDhcpReclaimIP is a read-write object used to reclaim an abandoned IP address, normally reading 0.0.0.0, where writing a client's IP address from the active list removes that entry, intended for recovering addresses with long leases from clients that left the network without sending a release notice. An admin uses this to manually free up an address that a long-lease client is holding but is no longer actually using, without waiting for the lease to expire naturally. For example, an admin who confirms a decommissioned device's old address is still shown as leased would write that address into ctDhcpReclaimIP to immediately return it to the available pool.