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I would like to create a match making server framework for online communication between multiple machines in different LANs. To keep the delays add low as possible I want to be able to create a peer to peer connection, but based on what I know about TCP you would need to forward ports to make this happen; I don't want this if it can be helped. So I was wondering if there is any way to take two separate connections to a server and turn it into one connection between the clients, without the server being involved.

TL;DR Can I make client-server-client become client-client?

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  • Take a look at STUNT. It is made for helping connect clients through NATs. It doesn't always work (depending on both types of NATs), but I know it is used in some successful products.
    – Joel C
    Nov 5, 2015 at 18:06

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After doing more research it appears that I want to implement a "hole punching" system. While this will not preserve the current streams/sessions it will do what I want.

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