Since you mentioned that the system was embedded Linux, see http://lartc.org/howto/ in particular Chapter 11. Some combination of packet marking and policy routing should get you taken care of. Good luck, Ed Christian Gagneraud wrote: > > Finally, my problem is that i would like to simply force the reverse > tunnel to use only ppp0. And at the same time i need the default route > to go through eth0 (that is needed for the main programs running on this > box) >