Access to a network server without port forwarding

Posted by SdevDavid on Server Fault See other posts from Server Fault or by SdevDavid
Published on 2014-06-12T13:43:04Z Indexed on 2014/06/12 15:28 UTC
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Filed under:

networking

|

routing

|

sockets

I have a network with the following structure.

The server in PC2 is simple socket server TCP in 8080 port.

I need to access to PC2 from other external network by socket client. This socket client knows the public IP (85.xxx.xxx.x), the private IP (192.168.0.21) and the port.

How I can access PC2 without port forwarding on the router?

If possible, I would like to have a reference in any programming language of this case.

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