Date: Mon, 20 Aug 2007 19:18:21 +0100 From: David Malone <dwmalone@maths.tcd.ie> To: Anish Mistry <mistry.7@osu.edu> Cc: freebsd-current@freebsd.org Subject: Re: Can't create TCP connections to certain IP addresses Message-ID: <20070820181821.GA74449@walton.maths.tcd.ie> In-Reply-To: <200708201121.37098.mistry.7@osu.edu> References: <200708191147.10340.amistry@am-productions.biz> <200708191751.23094.amistry@am-productions.biz> <20070820084759.GA65560@walton.maths.tcd.ie> <200708201121.37098.mistry.7@osu.edu>
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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.
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