Hi, awesome WG mailinglist!
My 18 year-old has recently moved out of home, and we're starting to yearn for one of our traditional Starcraft matches. I thought I should be able to do this easily with Wireguard.
The idea, generally, is that one of us would start up a game, and Wireguard - with a side serving of ProxyARP and IP forwarding - would help make all the other computers see that game. (or, at very worst, allow me to run a game that could be seen by his computer AND the other computers here).
-=-=-=-=-=-=-=-=-=-=-=-=-
On his computer: (LAN IP 192.168.1.x)
[Interface]
PrivateKey = {blah}=
ListenPort = 12457
Address = 192.168.88.3/24
[Peer]
PublicKey = {blah2}=
Endpoint = {my home}:12457
AllowedIPs = 0.0.0.0/0
On my computer: (LAN IP 192.168.88.x)
[Interface]
PrivateKey = {blah3}=
ListenPort = 12457
Address = 192.168.88.2/32
[Peer]
PublicKey = {blah4}=
AllowedIPs = 192.168.88.3/32
-=-=-=-=-=-=-=-=-=-=-=-=-
But it turns out not to be so easy. Starcraft sets up games over UDP 5353 and UDP 6112, and originally I thought it was a problem with forwarding UDP packets. However, I can see packets coming over the tunnel from his computer, but the packets are being forwarded to an address I don't know:
root@me:~# tcpdump -i home port 5353 or port 6112
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on home, link-type RAW (Raw IP), capture size 262144 bytes
20:02:35.744726 IP 192.168.88.3.6112 > 37.244.23.109.3478: UDP, length 10
20:02:35.759142 IP 192.168.88.3.6112 > 37.244.23.109.3478: UDP, length 10
20:02:35.759157 IP 192.168.88.3.6112 > 37.244.23.109.3478: UDP, length 10
20:02:36.045323 IP 37.244.23.109.3478 > 192.168.88.3.6112: UDP, length 19
20:02:36.099993 IP 37.244.23.109.3478 > 192.168.88.3.6112: UDP, length 19
20:02:36.100005 IP 37.244.23.109.3478 > 192.168.88.3.6112: UDP, length 19
20:03:05.964077 IP 192.168.88.3.6112 > 37.244.23.109.3478: UDP, length 10
20:03:05.964118 IP 192.168.88.3.6112 > 37.244.23.109.3478: UDP, length 10
20:03:05.987761 IP 192.168.88.3.6112 > 37.244.23.109.3478: UDP, length 10
Any ideas where I can start looking? I get similar behaviour whether I host the game on my computer or on his.
Thanks in advance for any help you guys can offer!
E
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