There ARE examples:

Forum: Linux IP NAT Forum
Re: IP NAT configuration (Karl S. Hagen)
Date: Mon, 22 Jun 1998 23:46:19 GMT
From: Michael Hasenstein <hasenstein@yahoo.com>

See my document (top of forum homepage) about NAT. Somewhere in the last 3rd there are various examples which should help you a lot.

Messages Inline: Outline:

1. Ok... Explain this.. :) by Karl S. Hagen, 7/06/98