You cant use NAT and Masquerading at the same time
Linux IP NAT Forum
Problem with MASQ and NAT -- (without arp patch) (rich)
Date: Thu, 23 Jul 1998 06:43:06 GMT
From: Rolf Cronberg <firstname.lastname@example.org>
As far as I know you cant use NAT and ip masquerading on the same machine. I think that you should use redirect for incoming connections instead of NAT.
Maybe with aliasing by email@example.com, 7/23/98