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From: Fabio Marcone <fabio.marcone@duet.it>
To: netfilter@vger.kernel.org
Subject: Re: postrouting and mac address
Date: Tue, 21 Jul 2009 15:10:55 +0200	[thread overview]
Message-ID: <4A65BE5F.4090007@duet.it> (raw)
In-Reply-To: <c7a3bdd5fcb7f7152ae1a453651aa9d1@localhost>

Hi!
there was a misunderstanding: "filter" I mean "recognize". I don't want 
to drop packets in postrouting, I know it is impossible, but I need to 
recognize in postrouting packet of a certain source (by mac address, not 
by ip).

I don't know when packets source mac address is modified by router.

Thanks,
Fabio
> Hi Fabio,
>
> I don't think you can filter packets in postrouting.
> The only tables available in POSTROUTING are mangle and nat.
>
> To filter packets in a router, I think you have to do it in the FORWARD
> chain.
>
> see: http://jengelh.medozas.de/images/nf-packet-flow.png
>
> Julien
>
>   


  reply	other threads:[~2009-07-21 13:10 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-07-21 12:05 postrouting and mac address Fabio Marcone
2009-07-21 12:20 ` Julien Vehent
2009-07-21 13:10   ` Fabio Marcone [this message]
2009-07-21 13:24     ` Fabio Marcone
2009-07-21 13:30     ` Pascal Hambourg
2009-07-21 13:36       ` Fabio Marcone
2009-07-21 13:53         ` Gáspár Lajos
2009-07-21 13:59         ` Pascal Hambourg

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