From: Harald Welte <laforge@netfilter.org>
To: Olivier GRALL <olivier.grall@neotip.com>
Cc: netfilter-devel@lists.netfilter.org
Subject: Re: [IPTABLES] Symmetric NAT?
Date: Sun, 16 Oct 2005 16:33:52 +0200 [thread overview]
Message-ID: <20051016143351.GC17257@rama.0sec> (raw)
In-Reply-To: <434FA046.8050708@neotip.com>
On Fri, Oct 14, 2005 at 02:10:46PM +0200, Olivier GRALL wrote:
> Hi,
>
> I was making some tests with STUN when I realize that my NAT box was a simple Linux Box with an IPTABLES
> rule with a MASQ target. What seemed strange to me was that the STUN result was "Port restricted cone ".
>
> I made a new with NATcheck.exe... same result.
> http://midcom-p2p.sourceforge.net/
>
> I was sure IPTABLES NAT was Symmetric and not Port restricted cone. What about it ?
> In the "Procceding of NetFilter Developer WorkShop 2004", Harald Welte reported "
>
> netfilter however implements (SNAT and MASQ) as ssymmetric.
> "
iptable_nat implements a fully symmetric port-overloading NAT.
--
- Harald Welte <laforge@netfilter.org> http://netfilter.org/
============================================================================
"Fragmentation is like classful addressing -- an interesting early
architectural error that shows how much experimentation was going
on while IP was being designed." -- Paul Vixie
next prev parent reply other threads:[~2005-10-16 14:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-14 12:10 [IPTABLES] Symmetric NAT? Olivier GRALL
2005-10-16 14:33 ` Harald Welte [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-10-18 7:07 [IPTABLES] Symmetric NAT ? Olivier GRALL
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