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From: Anders Fugmann <afu@fugmann.dhs.org>
To: netfilter@lists.samba.org
Subject: mangle tables.
Date: Tue, 10 Sep 2002 08:49:56 +0200	[thread overview]
Message-ID: <3D7D9614.1040205@fugmann.dhs.org> (raw)

Hi all

I'm lookin at the new mangles tables as of 2.4.18, and fail to
understand excatly packets traverse these chains.

the manpage says:
      Since kernel 2.4.18, three other built-in chains are  also
      supported  :  INPUT  (for  packets  coming  into the box itself),
      FORWARD (for altering packets being routed through the box), and
      POSTROUTING (for altering packets as they are about to go out).

Am I correct in the following:
Packets going through the firewall (forwarded):
PREROUTING,....,FORWARD,....,POSTROUTING.

Packets originating from the firewall itself:
	OUTPUT,...,POSTROUTING.

Packets destined for the firewall itself:
	PREROUTING,...,INPUT.

Next, is the above is correct, when does packets hit the chains,
e.g. what chains are traversed between PREROUTING and FORWARD and 
POSTROUTING, in the forwarding example?

Thanks in advance
Anders Fugmann

-- 
Author of FIAIF
FIAIF Is An Intelligent/Iptables Firewall
http://fiaif.fugmann.dhs.org



             reply	other threads:[~2002-09-10  6:49 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-09-10  6:49 Anders Fugmann [this message]
2002-09-10  9:38 ` mangle tables Antony Stone
2002-09-10 10:05   ` Anders Fugmann
2002-09-10 10:12     ` Antony Stone
2002-09-10 10:41     ` Stewart Thompson
2002-09-10 11:09       ` Antony Stone
2002-09-10 13:04       ` Anders Fugmann
2002-09-10 20:18         ` Stewart Thompson
2002-09-10 22:18           ` Anders Fugmann

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