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Sometimes we need portforwarding, which helps you to open up a port in your firewall or router so that you can accept incoming connections making your download (application oriented) fast or can play online games, host a web server or ftp server. For more info check here or here.

Here this tutorial is concerned with opening up a port for utorrent, the smallest bittroent client for making our download fast (depends on your connection and configuration). The speed may increase from 2-10 KBps for a normal broadband connection. This method can be applied to any other application. Basically this tut is all about opening a port for incoming connection.

There are two methods, first one is through router's/modem's interface page which is quite easy than the other one which is through Telnet.
I am going to discuss it the first one first and second in later posts.

The screenshots below may vary depending on your ISP and modem. I am currently using MTNL (India) with modem UT 300R2U.

1. Open your Router's home page in your browser like http://192.168.1.1/main.html or simply http://192.168.1.1

2. Click on Advance Setup and then on " NAT ".
There you'll see the table showing port address and its detail.


3.Now we are going to add one for our use. Click on "Add". A new page will open.
Enter/fill the following details :
a) There you can choose "Service", if you want to open a port for a speicfic service.
But here i am going to select "Custom Server", for all. Name it, anything you want like xyz.
b) Enter your "ip address". Get this from Run > cmd > ipconfig.
c) Both External Port Start/end and Internal Port End : any number around 60,000. Say, 61111.
d) Protocol : TCP/UDP.
e) Save the settings.

Now in the NAT table, you'll see the abc server details.

Now save & reboot your router to take the changes. (Go to Management> Save & Reboot).
That's it. All Done...!!!
For more info and router specific port forwarding check here.
Now enter this port no in your application/program. :)

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