Port forwarding in C#/software possible? Isn't it only managed by the router?

Posted by Rudi on Stack Overflow See other posts from Stack Overflow or by Rudi
Published on 2010-05-23T18:54:30Z Indexed on 2010/05/23 19:00 UTC
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portforwarding

Isn't port forwarding managed by the router? Like, I've googled up some software applications that seem to port forward with great success, but it technically seems to be impossible. The packet must first go to the router. The router must forward it to the correct computer based on port forwarding rules. So how can a software application manage port forwarding if the packet must GO to the computer running this software application in the first place, meaning that port forwarding already is successful in the first place?

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