I bought a DLINK DSL 2520U Modem to replace my faulty Beetel Modem. ( My broadband connection is two years old and Airtel provides replacement warranty only up to one year. )
Here is the steps that i followed to configure the new modem with Airtel Broadband connection.
Connected the modem with my pc though the Ethernet port. I could able access the modem configuration page through URL: http://192.168.1.1, and authorised with below credentials.
default username : admin default password : admin
I changed the highlighted values on the SETUP screen and kept default values for the remaining.
1. Select PPPoE/PPPoA in MANUAL ADSL CONNECTION SETUP
2. I was not remembering the PPP username/password , which was configured long back. I called Airtel customer care , and they provided this information.
Service Name can be anything. Keep the Connection Type as PPPoE LLC. Make sure the Authentication is Auto and NAT is enabled.
3. Change VPI to 1 and VCI to 32.
Save the settings by clicking the button at the end of the screen. Reboot the modem.You will be all setup to use the internet connection.