using http://wiki.m0n0.ch/wikka.php?wakka=AccessingModemOutsideFirewall
as a basis, we got the local LAN to successfully access the remote
LAN.
This was done by giving the outbound NAT a /24 mask (the example in
the wiki has  a /32 mask)

Now we need to do that same with inbound NAT. However mono does not
allow inbound NATing to have a mask. It only allows inbound NAT to a
single host.

Is using the ipnat command is the way to go here? I mean to setup
inboinbound NAT...

sai