The Nintendo Switch has a feature it calls “local wireless multiplayer”, wherein two consoles can play a game together using a wireless connection without needing to be on a LAN, connecting directly to each other without a router. Some games only support this form of multiplayer, and not an online mode using the Internet.
My brother and I would like to play one of these games together, but we now live in different countries. Is it possible to set up some manner of relay or access point that would let us do this?
While trying to research this, I discovered what I think might be a solution: having a Raspberry Pi capture the wireless traffic from my Switch and send it over the Internet to my brother, where his Raspberry Pi broadcasts that traffic as if it was coming from my Switch in the room with him, and also captures his traffic and does the same in the other direction. But I don’t know if this is viable, or what the right term/description of it is so I can search and research further, or whether this requires four Raspberry Pis (one on each end to capture, another on each end to broadcast what the other person captured).
The fact that the console is called Switch, which happens to be a common piece of networking equipment, certainly doesn’t help in my searching, and nor does the fact that “local multiplayer” usually refers to playing on one console with two controllers.
I would be very appreciative if anyone who knows about networking could clarify whether this can be done and what terms or concepts I should be looking up to do it.
(The game is turn-based strategy, so latency isn’t a concern.)
