From: Pascal Hambourg <pascal.mail@plouf.fr.eu.org>
To: netfilter@vger.kernel.org
Subject: Re: NAT overlaps with ports
Date: Wed, 23 Sep 2009 15:45:57 +0200 [thread overview]
Message-ID: <4ABA2695.3030804@plouf.fr.eu.org> (raw)
In-Reply-To: <4ABA0329.70102@edu.physics.uoc.gr>
Kapetanakis Giannis a écrit :
>
> What I'm worried of is than a random connection could be created which uses
> the mapping of port 8080 of 192.168.1.1 and then the internal server
> would not be available.
> But I guess this is not a problem since a connection has 4 parameters
> src/dst ip/port.
Indeed, if some random outgoing connection to a remote host is mapped on
source port 8080 it is very unlikely to disrupt access to the internal
server, and it would only affect access from that remote host during a
short delay after the connection has been terminated (until the mapping
is deleted).
prev parent reply other threads:[~2009-09-23 13:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-23 9:51 NAT overlaps with ports Kapetanakis Giannis
2009-09-23 10:46 ` Pascal Hambourg
2009-09-23 11:14 ` Kapetanakis Giannis
2009-09-23 13:45 ` Pascal Hambourg [this message]
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=4ABA2695.3030804@plouf.fr.eu.org \
--to=pascal.mail@plouf.fr.eu.org \
--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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.