According to the instructions, I can add a gateway, OR to route some address to the my local network. Which one should I do for minimal effect on the network (I don't want to mess up anything)?
How to fix problems related to the Local Area Network option?
If you try to play using the Local Area Network option, and do not see a game hosted from your machine on another or vice versa, and you are in the same subnet, this is likely caused by not having a default gateway. The game relies on sending UDP packets to the broadcast address and Linux will not send them unless there is a default gateway or another rule to handle them. To fix it, there are two methods:
Add a default gateway.
- OR -
Route 255. 255. 255. 255 to your local network.