From: Pascal Hambourg <pascal@plouf.fr.eu.org>
To: "megacrabogoahell ." <megakrabo@gmail.com>
Cc: netfilter@vger.kernel.org
Subject: Re: TFTP conntrack research.
Date: Fri, 27 Jun 2014 11:55:17 +0200 [thread overview]
Message-ID: <53AD3F85.8010105@plouf.fr.eu.org> (raw)
In-Reply-To: <CALHVu_7PJtvZJxOEZKQSYFJth5zwizecHntiu2oT_ox0J5oUJQ@mail.gmail.com>
Hello,
megacrabogoahell . a écrit :
> I'm researching the stateful FW. I've got an interesing situation of
> how does the TFTP passes FW rules. It's clear to me how does
> nf_conntrack_tftp works. But could you please answer me, how many
> sessions does the TFTP transfer requiers?
> I mean, when the client asks server for a transfer with WRQ or RRQ,
> the src ip/port and dst ip/port are not same when tftp reply came back
> to the client. Does this packet belongs to the session of 1st
> packet(RQ creates NEW session, and then it goes as ESTABLISHED?), or
> it belongs to the new session.
The data tranfer creates a RELATED connection.
prev parent reply other threads:[~2014-06-27 9:55 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-27 9:05 TFTP conntrack research megacrabogoahell .
2014-06-27 9:55 ` Pascal Hambourg [this message]
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