From mboxrd@z Thu Jan  1 00:00:00 1970
From: Pascal Hambourg <pascal.mail@plouf.fr.eu.org>
Subject: Re: no ssh on eth0
Date: Mon, 31 Jul 2006 15:44:01 +0200
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former03 | Baltasar Cevc a =E9crit :
>=20
>> Why ? What is the difference with or without NAT ?
>=20
> You can filter out all incoming packets to local IP addresses on the wa=
n=20
> interface before NAT is done;

No you can't, unless you intend to do filtering in PREROUTING chain of=20
the 'mangle' table.

> if you just use MASQUERADE for outgoing=20
> packets, "iptables -A INPUT -i eth0.-d 192.168.0.0/16 -j DROP".

I just don't see how it is different whether you have NAT/MASQUERADE or=20
not. To me filtering and NAT in iptables are fundamentally independent.