We are trying to recoup wasted IPs, namely reserved ones which havent been seen for say 60 days and its very likely that the device no longer exists or has been relocated.
Currently, all of our reserved IPs says "Last Response" with today's date (we have only just today started a trial), but if I ping, I get no response, so this is a little misleading. We would estimate that we are perhaps wasting at least 5-10% of our lease pools on reservations for devices that simply dont exist.
I was expecting it to be marked as Transient, then if I set this period to 60 days it could then show as available, but I dont think this is the case.
Cheers