Configuring Your Router.
BitTorrent NAT/Router problems
You need to forward your ports if you have NAT in order to get optimal speeds. This is one of the most common issues people fail to configure when they use BitTorrent.
To Find out if you have a NAT issue go here. If you get a message of "It would appear that your machine does use NAT", then this section is for you.
The way to resolve this is by forwarding ports. BitTorrent default use are ports in the range of 6881-6999. (TCP ports) The client starts at the first port in the range(6881) and sequentially tries higher ports until it can find one to which it can bind. So you only need to open as many ports as simultaneous BitTorrent clients you would ever have open.
If you have one of these broadband router/NAT devices (such as the Linksys BEFSR41, D-Link DI-701/704, Netgear RT311, SMC Barricade, 3Com Home Ethernet Gateway, etc.) you will usually need to enter the web configuration of the device. If you're not sure, try http://192.168.1.1/ or sometimes http://192.168.0.1/.
http://192.168.1.1/ (Asus, Draytek, Linksys, Zyxel, Cisco,WooWeb-Pro)
http://192.168.2.1/ (Belkin,SMC (some browsers need :88 added))
http://192.168.0.1/ (DLink, NetGear,Nexland)
If you can't figure it out, try the manual for the device -- they are often on the manufacturer's web site in PDF form
Valuable link for port-forwarding help!!
BiTorrent, torent, bit torent, bittorent, bitorent.
