Deal with DHCP Server IP Exhausted

Recently, I have a problem with DHCP Server service run on Windows Server 2003 that use full ip address ranges, alot of IP used by strange mac address (3139…, longer than 12 charater) with type DHCP/BOOTP, even my DHCP server have mac address filter add-in and assign IP option is DHCP only. No special info in event log, Google return no clear root cause and solution.

Some strange address

this happen not just with Windows S2K3 also with S2K8 or 2012 too. Continue reading “Deal with DHCP Server IP Exhausted”