ipnat

[Koala <magma@toxygene.dope.org>]

hi, i am writing about ipnat.rules. I have read all examples about it
and the manual pages.
I did many try and get always an "invalid map rules" or "invalid
netmask" at the boot.
so, if someone know well ipnat rules, your help will be appreciate.
I wanna share all tcp connections from ppp0 interface to the ethernet
address 10.0.0.2
(ed4 interface).My connection to the net is dynamic
what is the exact syntax i have to put in the ipnat.rules file.
thanks.