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Date:      Tue, 17 Feb 2004 10:52:26 -0800 (PST)
From:      Doug White <dwhite@gumbysoft.com>
To:        Bruce M Simpson <bms@spc.org>
Cc:        freebsd-current@freebsd.org
Subject:   Re: Unusual fxp behaviour with link0 flag
Message-ID:  <20040217104801.V29882@carver.gumbysoft.com>
In-Reply-To: <20040215072250.GE22136@saboteur.dek.spc.org>
References:  <20040215072046.GD22136@saboteur.dek.spc.org> <20040215072250.GE22136@saboteur.dek.spc.org>

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On Sun, 15 Feb 2004, Bruce M Simpson wrote:

> It might help if I mentioned what it was! Truncated IP datagrams. That is,
> only the first 40 bytes or so of every packet were making it through. This
> had the effect that I could ping the box, but TCP segments were mysteriously
> Going Nowhere, and tcpdump revealed a lot of [|ip].

tcpdump shows the [|foo] when you're using the default snarflen and it
thinks there's more data to look at. The default snarflen is 68.  But TCP
stuff should have been ID'd as [|tcp] and not [|ip], so I suppose it had
the intended effect :)

-- 
Doug White                    |  FreeBSD: The Power to Serve
dwhite@gumbysoft.com          |  www.FreeBSD.org



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