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Date:      Mon, 15 Jan 2001 23:55:10 -0900
From:      Beech Rintoul <akbeech@anchoragerescue.org>
To:        Bill Moran <wmoran@mail.iowna.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: natd & failed to write packet back
Message-ID:  <01011523551000.02838@galaxy.anchoragerescue.org>
In-Reply-To: <3A63C754.AEA088A@mail.iowna.com>
References:  <3A63C754.AEA088A@mail.iowna.com>

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I had the same problem. I found that blocking non routeable IP's on my 
external interface cured it.

192.168.0.0/16
172.16.0.0/12
10.0.0.0/8
127.0.0.0/8

Hope this helps...

On Monday 15 January 2001 19:00, you wrote:
> Hi all,
>
> A proxy/firewall/nat box I recently set up is constantly spewing out an
> error from natd:
> failed to write packet back [host is down]
>
> What exactly is happening here? This is pretty ambiguous, I mean - what
> host? It seems to indicate that a machine that was using natd went
> offline before the communication completed, but it's occurring
> constantly (I see the message a few times a minute at times)
>
> Is this indicative of any type of problem, misconfig?
>
> TIA,
> Bill
>
>
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