said by Juggernaut:
Yep. I think it's on by default in pretty much every router. The funny thing is, I can't think of a reason why it should even be there.
In large, end users can be lazy at times and UPnP facilitates that laziness as people don't have to configure their NAT routers to have a new program.
Allegedly it's supposed to be so applications like games and whatnot can automatically set up port forwarding. Unfortunately some program vendors set their programs up to dynamically allocate ports, rather than statically set them so you can set up the port forwarding once manually and leave it.--
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