问题
I have a client and server application in two computers. i am trying to connect them through internet TCP connection. the problem im facing is.
Client (192.168.1.2) -> [router] (124.43.224.112) --
-> (internet) -> [router] (124.43.190.63) -> Server (192.168.1.3)
How do i establish a TCP connection ?
回答1:
Internet 101:
- Network Address Translation http://en.wikipedia.org/wiki/Network_address_translation
- Port Forwarding http://en.wikipedia.org/wiki/Port_forwarding
The router 124.43.190.63 must be configured to do port forwarding to 192.168.1.3. Client connects to 124.43.190.63.
You must understand these basics if you're writing a networking application.
回答2:
In order for the client to connect to a server that is hidden behind a router you need to setup port forwarding on the server's router. That way when the client attempts to connect to a configured port on the server's router, the request is forwarded onto the server.
来源：https://stackoverflow.com/questions/4111909/c-sharp-how-to-connect-a-tcplistener-server-behind-a-router