Dial on demand (pppd, diald, ???)

[Manuel Zabelt <manu@adam.sax.de>]

ello!

I managed to get pppoe working, so I can uses ADSL.

Now i want to use the demand option of pppd or the diald. 

Can anyone helb me getting one of these two progs to work?
I think diald is what I need.
I need a programm, that creates a dummy-networkdevice (e.g. sl0)
and listens an this device. If something wants to connect to somewhere
with the help of this device (the default route will be set to sl0) then
I want diald just to start a tiny programm. 
The programm does all the rest.

thanks

manu