[LARTC] adsl on/off

[Eddie]

Good day all
Now I'm from South-Africa,here we have adsl router/modems
You set the router to do the dialup and authentication and the set it as
your gateways box's gateway.Now sometimes the links gets drop and is off
for a while.Are there any way,for linux,my gateway of letting me now
that the link was/is down.Note that the box is not dialing so there is
no adsl-status.

What I NEED to do it be able to know if the link is down,and if the link
is down use a modem dialup and when the link get back up stop the
modem.Any Ideas
Thanks