Damian Gardner
asked on
DHCP question
Hello -
I’m trying to free up IPs in my 1st subnet (there’s 2) and I’m down to 1 free address, according to the statistics on the scope. Weird thing is that when I successfully moved 4 static IP printer addresses over to the other subnet, and deleted their reservations, the statistics do not increase by 4 addresses – it still shows only 1 available address. I double-checked the active leases and do not see my 4 printer addresses leased – statically nor dynamically. I restarted the DHCP server service thinking maybe the server just hasn’t recognized the open addresses yet – didn’t help. Wondering why it's not releasing the addresses back into the pool.
Thanks for your help
I’m trying to free up IPs in my 1st subnet (there’s 2) and I’m down to 1 free address, according to the statistics on the scope. Weird thing is that when I successfully moved 4 static IP printer addresses over to the other subnet, and deleted their reservations, the statistics do not increase by 4 addresses – it still shows only 1 available address. I double-checked the active leases and do not see my 4 printer addresses leased – statically nor dynamically. I restarted the DHCP server service thinking maybe the server just hasn’t recognized the open addresses yet – didn’t help. Wondering why it's not releasing the addresses back into the pool.
Thanks for your help
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ASKER
so - there's no lease anywhere to be seen for these static reservation IP's. also, they were not Windows clients that had the addresses - they were printers - so I wouldn't be able to issue any "release" ipconfig command. the goofy thing is in spite of the reservation being gone - and there being NO lease for the specific addresses - AND the scope including those IP's that were free'd up.....the scope does not add them back into the pool.
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ASKER
thanks for weighing in guys. The reservations had to be made in the past in order to keep the DHCP from using them - so they were inside the scope. Lease time is currently 24 hours, but I like your idea of reducing them to 12 hours. I performed a "Reconcile" on the scope, and then waited. over time (not sure how long), it released 27 addresses for me. so I think I'm out of the woods. thanks everybody!
ASKER
thanks