Hi Arun:
If you ask about the possibility then the answer "Yes it is possible".
However, you need a device that supports that the authentication method you use.
For example, if you use PPPoE connection to provide your username and password then you need to get a wireless router that supports that.
Usually smallbusiness wireless routers have couple of options.
You need to check with your provider what is the auth method in use and then buy a wireless router that supports that method.
HTH
Amjad
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