Linux Netfilter discussions
 help / color / mirror / Atom feed
From: "Vitor António das Neves Pinto" <vpinto@av.it.pt>
To: netfilter@vger.kernel.org
Subject: Iptables special config
Date: Thu, 12 Mar 2009 11:32:50 +0000	[thread overview]
Message-ID: <web-35205651@av.it.pt> (raw)

Dear all,

I have a question regarding a special configuration with 
iptables, I hope you can help me:
- Behind the NAT there’s a terminal with IP1 that sends a 
UDP packet to a host outside the NAT with IP2 (Source 
port=1033 Dport= 123)
- The response to this packet (due to load balancing 
issues) comes from a machine outside the NAT with IP3 (not 
from IP2!!) with Source port=123 Dport=1033

Since iptables is configured as a port restricted NAT the 
response packet is dropped not reaching terminal with IP1… 
Any idea how to make the packet reach the terminal with 
IP1?
I know that with a full cone nat this wouldn’t happen…

Best regards,
Vitor Pinto

             reply	other threads:[~2009-03-12 11:32 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-03-12 11:32 Vitor António das Neves Pinto [this message]
2009-03-12 14:41 ` Iptables special config Покотиленко Костик
  -- strict thread matches above, loose matches on Subject: below --
2009-03-11 18:09 Vitor António das Neves Pinto

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=web-35205651@av.it.pt \
    --to=vpinto@av.it.pt \
    --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