I am in the very early stages in planning a program for monitoring a VPN connection and am currently catching all ipv4 addresses from the adapters. When I am connected to my VPN it is always starting with 10 - so something like: 10.8.1.202 and every VPN I have ever used has always used this.
What I am thinking of doing is getting a list of all the ipv4 addresses and then checking to see if any begin with ( 10 ) then mark it as a possible VPN to monitor.
Do ALL Virtual Private Networks use this range? or are there others I should be aware of?