I tried simplifying the problem statement, it appears to be counter productive. So here is the full story. I have a server (A) behind NAT, in a country that blocks a lot of websites and performs DPI.

Hi. I have a rather technical and specific problem, and I know it's the wrong thing to do (especially since it doesn't work), but I'm trying to learn WHY it doesn't work. All subnets are 255.255.255.0 ...