Tuesday, September 25, 2018

Tool to scan for subnets that overlap?

We have to do an audit on several hundred networks, I am wondering if anyone knows of a tool to search a list of subnets, and see if there is any overlap, i.e. 192.168.1.100 is part of 192.168.1.0/24 and 192.168.1.64/26.

It would be quite time consuming to check all of these IP addresses, thanks.



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