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this post was submitted on 07 Sep 2026
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The game server is probably behind a NAT. I'm standing in the same situation.
Got a small VPS with a TCP VPN to access all my devices despite location, and a comparably powerfull server behind a NAT which I would like to host UDP services on.
It needs to be said that we are talking actual VPNs here, and not "VPN-as-proxy" to spoof your location etc.
Yeah, that sort of thing.
I should say that I'm finally having some luck with using wireguard, so I'm making progress. Got a few rounds of Counter-Strike in with a friend about an hour ago!
Would that be CS 1.6? Can you get your game server to appear in the public list when you do it this way?
Yeah, CS 1.6!
I'm not sure about the master server list just yet, sorry.
Cool! I miss the CS 1.6 days when you'd have a favorite server or two where you'd play with familiar faces.
Some games have query ports for stuff like that. Maybe check for one.
Are you unable to port forward?
Can't port forward through the CGNAT of my ISP, only my own router's NAT.
That is, unless I buy a unique IPv4 from my ISP.
Have the ISP place their gateway/router into bridge mode. This will pass the public WAN IP directly to your router, allowing it to handle NAT, firewall policies, and port forwarding without double NAT.
I’ve been hosting public-facing servers for several years and regularly run dedicated servers for my son. I keep the ISP gateway in the setup because they provide a substantial discount for using their modem/router rather than connecting the UDM Pro directly to the fiber ONT.
I actually had that up and running before they changed our modem and threw us behind their regular CGNAT. I've tried bridging the modem, but it's no use if the bridge leads to their intermidiary network and not the public internet. :(
They problably hadn't realized (or didn't care) that we had a unique IPv4 before, so I was lucky enough that simply opening up the provided modem and my router was enough. Now they want 15€ a month for the same service, but at least it'll be static...
Gotcha by the balls, VPN would have the same problem unless you can host the VPN server on IPv6?
As I said, I've got a VPS. The VPS is not on my local net, but in a datacenter. As part of being a VPS it has a unique IPv4.
My VPN (which I currently use for TCP traffic) is hosted on the VPS, giving me access to (and from) all devices connected to my VPN regardless of whether they are behind a NAT or not.
I've also got a beefy server which hosts more power hungry services, though this one is behind multiple layers of NAT. I can forward and reverse-proxy TCP services from the beefy server through the VPN and out to the public net using another server with a unique IPv4 just fine.
What I (and OP) need, is to also be able to forward\reverse-proxy UDP services from a beefy NATed/firewalled server through a VPN and out to the public internet using another server which has a unique IPv4.