From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mattia Martinello <m.martinello@iol.it>
Subject: Nat
Date: Sun, 08 Sep 2002 22:43:51 +0200
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Hi.

I wish to create a nat with masquerading to allow my LAN to access to 
Internet.
I have two LANs: 192.168.1.x and 192.168.2.x. The server wich will make 
the masquerading has both two LANs with two ethernet card.
How I can allow only one LAN to access Internet with ppp0 on the server?
I tried these lines, but it doesn't work:

iptables -t nat -F POSTROUTING
iptables -t nat -A POSTROUTING -j DROP
iptables -t nat -A POSTROUTING -s 192.168.1.0/255.255.255.0 -o ppp0 -j 
MASQUERADE

What I can do?

Thank you very much
Bye
Mattia Martinello