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Date:      Fri, 7 Mar 2008 18:52:39 -0500 (EST)
From:      Mike Silbersack <silby@silby.com>
To:        Jake Rizzo <rizzojake@gmail.com>
Cc:        freebsd-net@freebsd.org
Subject:   Re: RELENG-7 tcp connectivity problems with certain clients
Message-ID:  <20080307185203.J27119@niwun.pair.com>
In-Reply-To: <b07c271a0803071455q4c44b626hf93ccad27ffed5ec@mail.gmail.com>
References:  <b07c271a0803071455q4c44b626hf93ccad27ffed5ec@mail.gmail.com>

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On Fri, 7 Mar 2008, Jake Rizzo wrote:

> Hi,
>
> I had two 6.3-STABLE boxen which have been happily running away for months
> on end now without any problems. Last week I upgraded  (via buildworld) both
> boxes to 7.0-STABLE.  Since then I've had reports of some clients being
> unable to connect via tcp.  I've seen this happen first hand on an affected
> remote machine. Traceroute & ping gets to the machine just fine
> but connecting to an open tcp port on the machine just times out.  The
> remote box was a XP machine and so I didn't have the luxury of tcp dump on
> that end, however I did get a chance to run it at the freebsd end:

Try this change; it was too late to be put in 7.0, but it will be merged 
to 7-stable in a few days:

http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/netinet/tcp_var.h.diff?r1=1.160;r2=1.161

-Mike



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