ADSL redial

Hi, I already post another message with same question in this list. I'm going to try with another title :-) I have a permanent ADSL connection. Sometimes it falls. Using rcppoed to start ADSL connection, what can I do to "redial" when the connection is broken??? I am not speaking of dial-up redial (when a client requests something from outside network). I need to be always online even when I do no request to internet... I am suposed to receive some request from internet. In other words I need redial just after the connection is broken. Seems to be simple as adding a parameter in pppoed.conf, but could't find the way. Thanks guys,