tcp - Android: Is it possible to connect to a server without configuring router's NAT? -

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i'm trying find way establish tcp connection (socket) between android device , server without having setup server's router nat.

android device -> internet -> router (with fixed external ip address) -> server (with fixed lan ip address)

something like: "connect 200.111.222.333 (with local address 192.168.1.1) on port 5000".

you have use turn or stun or other intermediate connectivity solution, in general isn't possible declaratively specify internal target behind nat device generic tcp connection on platform (not android).


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