the demo / tracker scene.
wow.
Since we're all here on a computer forum, we probably all have BBS stories to tell ;) Yes, I used to run an "3l33t" 3 nodes 0 day bbs back in the late 90s.
Thanks for making me fell real old now!
There's only one router needed:
The WAN port (was meant to) connect to the internet for the INITIAL D.NET network.
The LAN ports of the router should be used to connect your 2 games + the server box.
Perhaps the previous owner had a different setup ? ... you don't really need more than a...