From mboxrd@z Thu Jan  1 00:00:00 1970
From: Pascal Hambourg <pascal.mail@plouf.fr.eu.org>
Subject: Re: Filtering in PREROUTING
Date: Fri, 19 Jan 2007 12:32:19 +0100
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george a =E9crit :
>=20
> One question arises - in Ch 6 it says connection tracking (coming in)
> happens between raw and mangle tables,

Yes. Same with outgoing locally generated packets.

> but in Ch 7 it says it's handled in PREROUTING.

This is a misuse of the name PREROUTING, to make things easier to=20
understand. PREROUTING is only an iptables built-in chain for some=20
tables, and of course connection tracking does not occur in any iptables=20
chain, as it is independent from iptables. Connection tracking of=20
incoming packets is called from the NF_IP_PRE_ROUTING hook (see=20
http://www.netfilter.org/documentation/HOWTO/netfilter-hacking-HOWTO-3.ht=
ml),=20
which is the same hook the PREROUTING chains of the various tables are=20
called from.