Well, I was doing a bit of port forwarding on my Belkin router, and found that in it's preset list of ports, it has "bungie.net" listed, and it will open up port 3453. My question, what would bungie.net be doing using port 3453? Is that for like uploading something to it? I am curious for this... tl;dr What would bungie.net need with port 3453?
Bungie cannot just foreward ports on your network. Someone had to setup that port forewarding manually. Bungie.net has no reason to communicate on that port Bungie.net communicates on port 80