How to connect to a wireless modem in ubuntu

[Hithit]

i have a samsung laptop.i recently installed ubuntu 11.04 on it.

I have a huawei WA1003A modem .In windows i connect to my modem wirelessly using (WLAN) facility after connecting it shows it has limited connectivity with the modem and then i connect to BSNL using username and password..then i get connected to internet..

In ubuntu I conncted to internet using the cable by making a new dsl connection i provided my user name and password. and then i switched on the modem connected the cable and connected to dsl connection and internet was connected.. . i want to connect it wirelessly..Please suggest me how ..PLz

please help!!!!!!

[dineshs]

I have a huawei WA1003A modem .In windows i connect to my modem wirelessly using (WLAN) facility after connecting it shows it has limited connectivity with the modem

Reason:WA1003A modem is not DHCP enabled by default.

In ubuntu I conncted to internet using the cable by making a new dsl connection i provided my user name and password

Reason:Your modem is in bridge mode

. i want to connect it wirelessly

Pl see this
OR
Configure your modem in PPPoE mode

[Hithit]

Thanks a lot !!