Linux Netfilter discussions
 help / color / mirror / Atom feed
From: prabha <prabha@multitech.co.in>
To: "netfilter@lists.netfilter.org" <netfilter@lists.netfilter.org>
Subject: Re: [Re: Logging packets with original address]
Date: Thu, 04 Mar 2004 12:05:55 +0530	[thread overview]
Message-ID: <4046CE4B.5D39CF03@multitech.co.in> (raw)

Hi
    I can have the log in the PREROUTING chain. But, I have to log
ACCEPTed
and DROPped packets in the INPUT / FORWARD chains separately.
I use the options in the LOG target to tag the ACCEPTed and DROPped
packets.
So, I cannot have them logged in the PREROUTING chain, where we will not
know
whether the packet is going to be accepted or dropped.
    I have to log the messages in the INPUT or FORWARD chains, but with
the
original addresses.

Regards
Prabha

From Antony@Soft-Solutions.co.uk  Wed Mar  3 09:53:24 2004
>From: Antony@Soft-Solutions.co.uk (Antony Stone)
>Date: Wed, 3 Mar 2004 09:53:24 +0000
>Subject: Logging packets with original address
>In-Reply-To: <4045A0F1.F7366A69@multitech.co.in>
>References: <4045A0F1.F7366A69@multitech.co.in>
>Message-ID: <200403030953.24832.Antony@Soft-Solutions.co.uk>

>On Wednesday 03 March 2004 9:10 am, prabha wrote:

> Hi
>     I want to log some packets in the INPUT and FORWARD chains, but
with
> the original address of the packets. (ie) with the destination address

> before any DNAT rule has been applied on the packet in the PREROUTING
>chain.

>You cannot do this because packets pass through the INPUT chain after
they
>pass through PREROUTING.

>     When the packet comes to the INPUT / FORWARD chains, it will be
> after any DNAT has been applied.

>Correct.

> I do not want the NATted address to be present in the logs, but the
original
> address as the received interface saw it. Is this possible?

>Put the LOG rule in the PREROUTING chain.

>Regards,
>
>Antony.



                 reply	other threads:[~2004-03-04  6:35 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=4046CE4B.5D39CF03@multitech.co.in \
    --to=prabha@multitech.co.in \
    --cc=netfilter@lists.netfilter.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox