I did my own VPN setup on a CentOS box and it's working very nice and smooth. However I would like to add a feature that I open a specified port on the box for the incoming traffic that should be routed back to the connected client.
The service is only for me, however my home IP is not fix. My first idea would be to use a fix locale IP address on the box for the incoming traffic will be routed to. When I connect to the VPN service it should generate a rule to route everything from that fix IP to the connected client.
Is this how it should be done? How do I do that?