port forwarding - but reversed
I have been googling on this but i cannot seem to find an answer to my question, possibly I am looking for the wrong keywords.
I understand the principle of port forwarding: the router receives a connection on port x on the router and the router forwards the communication to port Y on PC Z in the network.
I need to connect a PC in my intranet to another PC over the internet. My ISP blocks the port that is used by the software on my PC. So - considering the possibilities of port forwarding - I thought it'd be possible to have the router change the outgoing communication from my PC on port x to port Q
Is this possible?