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From: Hannes Frederic Sowa <hannes@stressinduktion.org>
To: Stuart Kendrick <stuart.kendrick.sea@gmail.com>
Cc: netdev@vger.kernel.org
Subject: Re: unable to send TCP SYNs from ports below 1024
Date: Wed, 15 Jan 2014 12:47:15 +0100	[thread overview]
Message-ID: <20140115114715.GC19945@order.stressinduktion.org> (raw)
In-Reply-To: <CAACXELm1Yfv+=oC-N+nnR7apHc+gtZSVpqSbX2Rtkiq6-Y1QtA@mail.gmail.com>

On Tue, Jan 14, 2014 at 05:37:03PM -0800, Stuart Kendrick wrote:
> VALIDATION
> I verify the problem by using netcat plus two instances of tcpdump,
> one running on the box itself, the other running on a second box
> plugged into a SPAN port on the local Ethernet switch

This sounds strange. Could you try to skip the switch and plug the
boxes together directly. Maybe a switch policy? They can filter such
things nowaday.

Greetings,

  Hannes

  reply	other threads:[~2014-01-15 11:47 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-15  1:37 unable to send TCP SYNs from ports below 1024 Stuart Kendrick
2014-01-15 11:47 ` Hannes Frederic Sowa [this message]
2014-01-16 13:37   ` Stuart Kendrick

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