In continuation of my previous post, I am putting up this guide to explain Port Forwarding. Note, this is something you should do only if you have done this. Also you will have to perform these given steps every time you turn on your UT Starcom UT300R2U ADSL Modem. Well who said speed comes easy ?

Here goes.

  • Goto Start – Run, type into it “telnet 192.168.1.1″, without the quotes. It opens the command prompt, with the  following . For Linux users, type the same from terminal/konsole.BCM96338 ADSL Router
    Login:

    The login and password both are admin.

  • Once it gives you the prompt (>_), paste the following lines. What it means is explained later.
    iptables -I PREROUTING -t nat -p tcp --dport 8080 -i ppp_0_35_1 -j DNAT --to 192.168.1.11:8080
    iptables -I FORWARD -p tcp -d 192.168.1.11 --dport 8080 -i ppp_0_35_1 -o br0 -j ACCEPT
    iptables -I FORWARD -p tcp -s 192.168.1.11 --sport 8080 -i br0 -o ppp_0_35_1 -j ACCEPT
    The above three lines mean, a) Accept packets from any source to my computer, b) Send packets from my computer to any destination.
  • Make sure of 3 things
    1. Here 192…11 is my IP address. Substitute yours in that place. eg 192.168.1.10
    2. 8080 is the port that I have specified in my torrent client to be forwarded. Change them so that both are the same.
    3. Dont be a Pirate !
  • There maybe a problem though. It may happen that your IP address changes everytime you switch on your Modem. So int the Start – Run menu, type ipconfig and see your IP address. Accordingly make changes to the above three lines.

Happy S(p)eeding !