Configure Your 7721r+ modem to bridge mode
1 log in the address provided (192.168.1.1 most of times) in web browser.
2 Click on wan then click edit then next then select bridging and save it.
3 Reboot the modem.
4 In ur pc when connected to modem click on status icon properties in toolbar.
5 Change the tcp/ip settings to obtain ip address automatically.
Log In to the VT2442
1 On a computer connected to the VT2442, open a Web browser.
2 In the Address or Location field, type 192.168.15.1 and press ENTER to display:
3 In the Username field, type router.
4 In the Password field, type the password (the default is “router”).
5 Click Log In to display the HOME page:
Click on SETUP Goto WAN Configuration
1 Log in to the VT2442 (see “Logging In to the VT2442” on page 13).
2 Click SETUP.
3 Click WAN Configuration.
4 From the Type drop-down list, choose PPPoE(PPPoE is used with all DSL modems)
5 Enter Username & Password provided by Tata Indicom to you.
6 Click on Connect & save.
Switch off everything and switch it on.