Hi,
this implies a 1:1 correspondence between the packets on enc0 and the,
in my case, ESP packets on the real interface, and the sequence of
operation: Packet -> enc0 -> real interface. I'm not sure whether or
not that is a wise assumption (what about fragmentation and
reassembly?), but if it is, there'd not be a problem. It also requires
the use of labels, if I understand correctly.
Kind regards,
--Toni++