I thought I saw a tool like this once upon a time, but can't find it anymore...
Anyone know a tool that would take a free range of IP addresses (as in start / end) and calculate a set of submasks that match the given range exactly?
I'm specifically looking for a tool that does not comply to class subnetting. So, for example, given an IP range like:
10.0.1.255 - 10.0.2.255
The tool should be able to return with two masks to match the exact range: