what is port forwarding and why is it used?
In: 7
you can think of it as a sort of a “tunnel” between a machine on your LAN (not visible on the Internet – because LANs use *non-routable addresses* which every sane internet router discards) and a machine/device visible on the Internet (one having a routable/public IP address) which is your router (must have 2 network interfaces to be one).
it’s primary use is to expose a machine behind a router (NAT) to outside Internet – could be gaming, webserver, torrent traffic, remote desktop, whatever. anything that requires “visibility” on the net.
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