I'm trying to configure a PPTP VPN network to play LAN games. The structure is shown in the picture below:
As you can see, Client 1, Client 2 and Client 3 establish a VPN connection (using the standard VPN interface integrated in Windows) to the VPN server (Windows Server 2012, which uses the default "Incoming connection" interface to accept incoming VPN requests), so there's no third party software.
The connection is successfully established (the port 1723 is already forwarded on each router), but when a client tries to host a game, the other clients cannot see it (the exception for the ports used by the game is already set on the firewall of each client), so I assume that there is no direct communication between each client.
I've tried to uncheck the "Use default gateway on remote network" on each client, but this did not solve the issue.
What I'm trying to do now is add some static routes, but I did not fully understand how they work...
Any help will be appreciated.