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Date: Mon, 20 Aug 2007 19:18:21 +0100
From: David Malone <dwmalone@maths.tcd.ie>
To: Anish Mistry <mistry.7@osu.edu>
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Cc: freebsd-current@freebsd.org
Subject: Re: Can't create TCP connections to certain IP addresses
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On Mon, Aug 20, 2007 at 11:21:28AM -0400, Anish Mistry wrote:
> There doesn't seem to be checksum offloading on the sender ath0
> sender: tcpdump -s0 -v 
> http://am-productions.biz/debug/littleguy.tcpdump.txt
> 
> Far end: tcpdump -s0 -v host 192.168.1.188
> http://am-productions.biz/debug/bigguy.tcpdump.txt

It looks like you might be generating packets with bad checksums
some times. There's an open PR about this, but it depends on what
CFLAGS you used to compile your kernel. Could you check and see
what flags you are using?

	David.