i don't really understand what you are saying now...
I'm having the same problem, under the services tab i defined that tcp port 80 should be forwarded to ip 192.168.0.2:80... from the green network i can access the orange server, but i cannot acces my orange server from the internet...
GREEN --> 10.0.0.x (subnet 255.255.0.0)
ORANGE-->192.168.0.x (subnet 255.255.0.0)
Smoothwall can ping the orange server
When pinging from orange machine i get:
Reply from 192.168.0.1: Destination port unreachable.
I double checked the tcp/ip settings on both machines, and those are fine.