Bridge Setting - ADSL - Airtel Router

Airtel braodband connection comes with the default router and the dynamic ip is assigned to the router. If you want to run a webserver and make it public, then ip has to assigned to the system connected to the router instead of router itself. This can be achieved through by changing the setting in Router Configuration.

Go to whatismyip.com and find out the dynamic ip assinged to the router.
http:///
Go to "Advanced Setup", "Wan" and change the settings to "bridge" connection.
Then setup a dialer from your system to connect to the broadband connection using the username and password provided by the airtel connection.

Note : username and password for setting wifi connection in vista is different from the dialer username & password.