sockets to port at local network

Microsoft / Medion
February 5, 2009 at 21:55:28
Specs: Windows XP, 1024 MB
My question is when I'm having an application listening at a port at one of the computers on my local network which has access to the internet through a wireless router how will an application outside of this network be able to contact this computer through a port how will the application be able to contact it if there other computers on my local network. It must work since it work for example with progs like firefox (I can access the internet) my question is how will that happen my computer has an IP but as I said how will the application connect to the specific port on that one computer.
what must I maybe specify in my application which tries to connect in order for that connection to occur(the IP? I got no idea)

thanx in advance

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February 6, 2009 at 01:13:35
Look up port forwarding in the router manual. Just opening a port is not sufficient.

With firefox it is different as it is you initiating the communication from within the network, the router does all the work of deciding were to send the information.

It is the difference between solicited and unsolicited communication.


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