From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Mojgan Masroor" <masroor@cc.iut.ac.ir>
Subject: Howto Make Gateway with iptables?
Date: Wed, 10 Mar 2004 11:05:17 +0330
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Hi, 
 I have a linux redhat9.0 - I want to create an gateway between our 
sections  and central site. 
It have 4 ethernet cards. 2 cards for internal LANs with 2 invalid sunbet 
192.168.101.x and 192.168.102.x range. 3th card for intranet use such connect 
to our web-server or email-server, 4th card for internet connection and when 
they want go to internet.i want also close all extra ports and close udp + 
icmp protocols. 
How i could do this with IPTABLES Rules? Anybody have such this schema? 
Any help would be appriciated 

thanks a lot, 
mojgan