Active directory missing subnets

Thomas_1991 used Ask the Experts™
At a costumer AD i have many missing subnets. maybe a few hundred.

is there an eventlog or something else where i can get the subnet informations of clients which are not in a subnet which is known from the AD?

i wanted to write a script and get this information from netlogon.log, but as there is just the IP address it´s not really helpfull.

Best regards
Watch Question

Do more with

Expert Office
EXPERT OFFICE® is a registered trademark of EXPERTS EXCHANGE®
Can be found in netlogon logs

to check is the given IP is added on the AD and in which subnet


yes the problem is to get the subnet information for these IP addresses from netlogon.

any suggestions how to get this information?
You have the IP list and it's easy to convert to Subnet, mostly it's /24
Change the last bit to 0 and add /24 on each IP

Do more with

Expert Office
Submit tech questions to Ask the Experts™ at any time to receive solutions, advice, and new ideas from leading industry professionals.

Start 7-Day Free Trial