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From: Pascal Hambourg <pascal.mail@plouf.fr.eu.org>
To: netfilter@lists.netfilter.org
Subject: Re: no ssh on eth0
Date: Mon, 31 Jul 2006 15:44:01 +0200	[thread overview]
Message-ID: <44CE0921.7050103@plouf.fr.eu.org> (raw)
In-Reply-To: <f5cb25e84f751fd22816a75d4e6ba77b@former03.de>

former03 | Baltasar Cevc a écrit :
> 
>> Why ? What is the difference with or without NAT ?
> 
> You can filter out all incoming packets to local IP addresses on the wan 
> interface before NAT is done;

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

> if you just use MASQUERADE for outgoing 
> 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 
not. To me filtering and NAT in iptables are fundamentally independent.


  reply	other threads:[~2006-07-31 13:44 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-07-30  6:01 no ssh on eth0 varun
2006-07-30 10:12 ` Graham Murray
2006-07-30 11:44   ` Jan Engelhardt
2006-07-30 12:37     ` Pascal Hambourg
     [not found]       ` <facccfbd353e38901017e6dee5a54a99@former03.de>
     [not found]         ` <44CCE712.4070907@plouf.fr.eu.org>
2006-07-30 17:17           ` former03 | Baltasar Cevc
2006-07-30 20:04             ` Pascal Hambourg
2006-07-30 22:57               ` former03 | Baltasar Cevc
2006-07-31 13:44                 ` Pascal Hambourg [this message]
2006-07-31 15:51                   ` former03 | Baltasar Cevc
     [not found]                     ` <44CE7878.2020007@rtij.nl>
2006-07-31 21:54                       ` former03 | Baltasar Cevc
2006-08-02 14:15             ` varun
2006-07-30 10:41 ` Michael Weinert
2006-07-31 15:29   ` varun

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