From: Tom van Leeuwen <tom.van.leeuwen@saasplaza.com>
To: Anand Raj Manickam <anandrm@gmail.com>,
"Rob Sterenborg (lists)" <lists@sterenborg.info>
Cc: "netfilter@vger.kernel.org" <netfilter@vger.kernel.org>
Subject: Re: nat ftp helper bypass
Date: Tue, 08 Oct 2013 10:17:39 +0200 [thread overview]
Message-ID: <5253BFA3.50206@saasplaza.com> (raw)
In-Reply-To: <CAEyr1FQEDmcb_Gr_7BV0oXN4=Un0+jPJg8rxkoTOG-vE1p3sDQ@mail.gmail.com>
Unfortunately I don't know how to solve your problem using iptables.
Could you satisfy my curiosity and tell me why you want this? Maybe
there's another path to take.
Regards,
Tom
On 10/08/2013 09:42 AM, Anand Raj Manickam wrote:
> On Tue, Oct 8, 2013 at 1:06 PM, Rob Sterenborg (lists)
> <lists@sterenborg.info> wrote:
>> On 10/08/2013 07:46 AM, Anand Raj Manickam wrote:
>>> Is there a way to bypass nat ftp helper for a few connections and
>>> allow the rest of the FTP connections to NAT with the FTP helper
>>> module ?
>>> The need is to NAT the FTP control and data connections without
>>> conntrack-helpers .
>>
>> See man iptables, specifically the raw table:
>>
>> raw:
>> This table is used mainly for configuring exemptions from connection
>> tracking in combination with the NOTRACK target. It registers at the
>> netfilter hooks with higher priority and is thus called before ip_conntrack,
>> or any other IP tables. It provides the following built-in chains:
>> PREROUTING (for packets arriving via any network interface) OUTPUT (for
>> packets generated by local processes)
>>
>>
>> --
>> Rob
>>
> Thanks for your response Rob.
>
> The setup is a router and I m tryin to SNAT so the choice i have is on
> FORWARD / POSTROUTING chain.
> I need connection tracking as i need to NAT the traffic without the
> nat ftp helper module .
> --
> To unsubscribe from this list: send the line "unsubscribe netfilter" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2013-10-08 8:17 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-08 5:46 nat ftp helper bypass Anand Raj Manickam
2013-10-08 7:36 ` Rob Sterenborg (lists)
2013-10-08 7:42 ` Anand Raj Manickam
2013-10-08 8:17 ` Tom van Leeuwen [this message]
2013-10-08 8:34 ` Anand Raj Manickam
2013-10-08 13:43 ` Rob Sterenborg (lists)
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=5253BFA3.50206@saasplaza.com \
--to=tom.van.leeuwen@saasplaza.com \
--cc=anandrm@gmail.com \
--cc=lists@sterenborg.info \
--cc=netfilter@vger.kernel.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;
as well as URLs for NNTP newsgroup(s).