FreeBSD and Broadband network connection

[subbu 4u]

Hi,
  My name is Subburaj from India, I bought a broadband internet connection and 
tried to connect with Freebsd system, I edited the /etc/ppp/ppp.conf with my 
username, password and i.p address that my ISP gave me but its not going 
through.  I tried to troubleshoot with freebsd handbook and also with forums but 
its not working but my internet connection is working with windows 7 systems.  
The freeBSD were able to detect my ethernet card as vr0 and also my external 
modem is working with freebsd but there is no connection when I ping.  Kindly 
help.

Thank you