Generic Configuration of a ADSL Modem/Router  in Dialer/Router Mode:-

(For step by step configuration of some models, the screenshots are available in the Right Hand Side Submenu.  Please see if you own any of those models so that you can go through detailed configuration)


The modem supplied by BSNL is basically a router with minimalist features.  I would like to call it a Modem Router.   It has both the functions.  Depending on the type of modem/router, one can get connected to internet both in wired condition and wireless condition.  We will discuss the wired connection now.  Again, there are two ways of connecting a BSNL (through Ethernet cable and through USB) modem to internet.   Ethernet connection is again very simple and for connecting through the USB, one needs to install the drivers provided alongwith the modem/router.  Either through USB or Ethernet one can use the following two methods to connect to internet:-




Dialer Mode :-  In this mode, one connects from the computer.   One keys in the username and password and gets authenticated and connected.  It is a simple way of connecting to Internet and has no complications.   All that one needs is to create a link on the desktop.  This is also referred as a bridge mode operation. 


Depending on the type of operating system, one needs to create a link on the desktop for the same.  Some of the operating systems are discussed below:-


(i)                 Windows 9x/me/2000:-  On needs to install a software known as PPPoE for creating a link on one's desktop.  The software can be downloaded from downloads section of this site.


(ii)                Windows XP/Windows 2003 Server/Vista:-  One needs to create a link as given below:-


Click on START button and then click on Run  for Windows XP/2003 and in the white bar just above the START button on vista and enter "ncpa.cpl" and click OK.  Then a Network Connections window will open.  Click on File > New Connection to a see a new connection wizard popping up.


Now for Windows XP/2003, just click on the NEXT button and the second window will appear.   You can see "Connect to internet" option is already selected and simply click Next button again.  The third window will appear now and will ask you to choose the type of connection to choose.   Please select Setup my connection manually and then click on NEXT again.  Fourth window will now popup and please select Connect using a broadband connection that requires a username and password and then click NEXT.  The fifth window will appear and now key in any name of your choice as ISP name.  There is absolutely no problem with the name one chooses here as it is going to be the name of the link on the desktop and has nothing to do with internet service provided.  However, it makes sense to name it as BSNL Dataone.  Once you key in the name, please click NEXT again.  The sixth window will appear now asking you for your username and password.  The password needs to be typed two times for verifying the correctness since you can see only dots appearing.  Once you finish the keying in of the username and password, please click NEXT to go to the final window i.e. the seventh window.   Check the check box which says "Add a shortcut to the desktop for this connection" without which you will not be able to have an icon placed on the desktop.  That is all.   Now check all your connections to the modem are alright and check for the stable DSL indication before you double click the icon that you have just created and click Connect to login to the internet. 


In case of Vista, it is bit different.  Click on START button and then click type the command "ncpa.cpl" and click ENTER..  Then a Network Connections window will open.  Click on File > New Connection to a see a new connection wizard popping up.


Now, just click on the NEXT button and the second window will appear. Here you will be presented with a different style of menu with few options.  Please select the option PPPoE  and then click NEXT.  You will be asked for a username and password and then when you enter them and click NEXT, vista will try to connect to internet and display the status of the connection.  Once the connection is through, you need to just open the Internet Explorer next time when you want to get connected to internet and you will find the connection automatically comes up..


Router Mode (Auto Dialer Mode):-  This is a bit complicated  method but has some advantages over the normal bridge mode.   Some of the modem/routers have stealth setting i.e. the IP of the computer is not visible to the internet and hence there are fewer chances of getting exploited.  Also, the built in firewall, would block certain ports so as to improve the security aspect.  However, some ports need to be forwarded in case of some applications which need ports be forwarded.  Detailed concept of port forwarding is available at Port Forwarding section of the same site.  For a multiuser connection, the modem/router is plugged in to another router/switch for further distribution of internet to number of terminals. 

Firstly, connect the modem/router to the CPU and switch ON the supply to the modem.  You will see "Local area connected" icon appearing in the tray.  Even if you do not find it, do not worry.

Click on START and then click on Run and type cmd and click OK.  For vista, you know where to type the command.  If it is Windows 98/me, you need to type command.   Now, in the resulting window type ipconfig and you will see some display coming up.  It will mainly consist of three things.  They are, namely,  IP number, subnet mask and the default gateway.  IP number should be normally 192.168.1.x order and the subnet mask would be  The gateway would normally be  Now it is the time to check the connectivity of your local cable and the LAN card.   Issue the command ping and press ENTER.  You should see a reply coming from the router.  This confirms the basic connectivity from your modem to your computer.

If you find any other IP number instead of the above, please check two thngs.  Take the user manual and checkup what is the IP of the modem.  The IP of the modem should be your default gateway.   If not, you will have to change the settings.  To change the settings do the following :-

Click START and click Run.  Then type ncpa.cpl.  Check for the required local area connection and right click on it, click rename and change the name to ethernet.  The name ethernet is to avoid  typing some thing like "Local Area Connection 3" and has no other purpose.  Also it is a good practice to change the name of the local area connection for improved identification in case there are other local area connections like blue tooth or USB or some other form of local area connection.  Just by looking at the local area connection we could easily identify some thing as ethernet or usb or bluetooth..  If you dont mind typing "local area connection" correctly in the command mentioned below, there is not a need on earth to change the name.  Then click    START and click Run.  Then type cmd.   In the resulting window, please type the following and press ENTER.   

netsh interface ip set address name=ethernet source=dhcp

(Please replace "ethernet" with the actual name like "Local Area Connection" if you have not renamed)


That is all.   Your computer will receive the IP address from the modem/router now.   Now just open your favourite browser and key in in the address bar and hit <ENTER>.   Now, you will see a login prompt.   Login with the username admin and password admin and press <ENTER>..

 There are three things that are important.

  • Firstly, VPI (Virtual Path Identifier) and VCI (Virtual Circuit Identifier),  VPI = 0 and VCI = 35
  • Secondly, select PPPoE (The connection type), you will see text boxes for User name and Password.  
  • Lastly, the encapsulation mode should be  LLC.

That is all to it.   You will have to save and reboot the configuration.   Only one thing that is to be ensured is NAT = ON.

Once the modem reboots, it gets connected to internet automatically.  Open the browser and you will see your home page coming up.

Design downloaded from Free Templates - your source for free web templates