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Date:      Thu, 24 Sep 2009 13:50:46 -0400
From:      Michael Proto <mike@jellydonut.org>
To:        =?ISO-8859-1?Q?Dag=2DErling_Sm=F8rgrav?= <des@des.no>
Cc:        freebsd-net@freebsd.org, freebsd-current@freebsd.org
Subject:   Re: Confused tcpdump
Message-ID:  <1de79840909241050h6b3233dcgbd07386d716dac7f@mail.gmail.com>
In-Reply-To: <86d45g4ffl.fsf@ds4.des.no>
References:  <86d45g4ffl.fsf@ds4.des.no>

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2009/9/24 Dag-Erling Sm=F8rgrav <des@des.no>:
> 15:50:42.622040 IP 10.0.0.10.871009576 > 10.0.0.4.2049: 192 lookup [|nfs]
> 15:50:42.622386 IP 10.0.0.4.2049 > 10.0.0.10.871009576: reply ok 236 look=
up [|nfs]
>
> I'm pretty sure 871009576 is not a valid port number...
>
> DES
> --
> Dag-Erling Sm=F8rgrav - des@des.no
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"
>

I've noticed this behavior since at least 4.3 as well, with the source
port being some obscenely-high number, when examining UDP-based NFS
traffic with tcpdump (32bit).

Not chiming-in on validity one way or the other as its never really
bothered my troubleshooting to-date, but it has been there quite a
while.


-Proto



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