How to avoid booting PC to reconnect broadband

[Stephen Liu]

Hi folks,

FreeBSD 5.2
ADSL, pppoe
Connection: via ADSL modem

If broadband connection dies accidentally due to unsecured plug how to 
re-activate it avoiding rebooting PC.  Occasionally re-securing the plug and 
waiting for a while the broadband connection will reactivate automatically.

kindly advise.  TIA

B.R.
Stephen Liu