From: Italo Valcy <italo@dcc.ufba.br>
To: Pascal Hambourg <pascal.mail@plouf.fr.eu.org>
Cc: netfilter@vger.kernel.org
Subject: Re: How to use DNAT
Date: Thu, 17 Feb 2011 18:30:50 -0300 [thread overview]
Message-ID: <4D5D938A.4050000@dcc.ufba.br> (raw)
In-Reply-To: <4D5D7F74.3090809@plouf.fr.eu.org>
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Hi Pascal,
Em 17-02-2011 17:05, Pascal Hambourg escreveu:
>
> Target ? Do you mean the original destination address ?
Yes, that's it! ;)
> As long as incoming packets reach the interface, it does not matter how.
Yes, it just have to know how to reach the interface. Beacause of this
either I have to use the original destination address as a secondary
address of my firewall (machine running iptables) or start answer the
arp request for that IP. Right now, I'm using the secondary IP address
approach.
>
> Please provide some details about the rule, packets...
> Note that iptables' NAT ignores packets in the INVALID state.
Well... so could be this: INVALID state... The packets are about a
netflow traffic (9996/UDP) comming to the firewall, which should be
redirected to a internal host (through the DNAT). How can I debug these
possible INVALID packets?
Thanks!
- --
Saudações,
Italo Valcy :: http://wiki.dcc.ufba.br/~ItaloValcy
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.10 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
iEYEARECAAYFAk1dk4oACgkQfidLqjN6RNG2tACglYQeFkqjl2HMXpzzLh0tJ3bY
aWwAoJj6t8t3v8q9vU14kO3m7dof0O5s
=ORCq
-----END PGP SIGNATURE-----
next prev parent reply other threads:[~2011-02-17 21:30 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-17 18:47 How to use DNAT Italo Valcy
2011-02-17 19:03 ` Jan Engelhardt
2011-02-17 19:17 ` Italo Valcy
2011-02-17 20:05 ` Pascal Hambourg
2011-02-17 21:30 ` Italo Valcy [this message]
[not found] <184364666.3998.1297982398411.JavaMail.root@tahiti.vyatta.com>
2011-02-17 22:57 ` Steven Kath
2011-02-17 23:41 ` Pascal Hambourg
2011-02-18 12:50 ` Italo Valcy
2011-02-19 2:55 ` Atle Solbakken
2011-02-19 5:06 ` Pandu Poluan
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=4D5D938A.4050000@dcc.ufba.br \
--to=italo@dcc.ufba.br \
--cc=netfilter@vger.kernel.org \
--cc=pascal.mail@plouf.fr.eu.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