Date: Thu, 16 Sep 2004 03:56:19 -0000 From: "Florian C. Smeets" <flo@kasimir.com> To: pf4freebsd@freelists.org Subject: [pf4freebsd] Re: nfsd send error 1 probably caused by pf ? Message-ID: <3FB3EBBA.5070405@kasimir.com> In-Reply-To: <20031113163911.GR17343@insomnia.benzedrine.cx> References: <3FB2ACA6.7030302@kasimir.com> <20031112220709.GO17343@insomnia.benzedrine.cx> <3FB2B203.1030704@kasimir.com> <3FB2B5AB.50601@kasimir.com> <20031113163911.GR17343@insomnia.benzedrine.cx>
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Daniel Hartmeier wrote: > On Wed, Nov 12, 2003 at 11:35:23PM +0100, Florian C. Smeets wrote: > > >>I get a lot of these BAD state messages with debug leve misc: >> >>Nov 12 23:32:25 bender kernel: pf: BAD state: TCP 172.30.1.1:2049 >>172.30.1.1:2049 172.30.1.2:1021 [lo=2879006265 high=2879023465 >>win=16588 modulator=0] [lo=1139973024 high=1139974122 win=17200 >>modulator=0] 4:4 A >> seq=1139974472 ack=2879006265 len=1448 ackskew=0 pkts=406886:392362 >>dir=in,rev > > > To prove this theory, you'd need a tcpdump -nvvvS of the entire > connection (or at least a couple of packets before the first BAD state > message). The connection doesn't use window scaling, so either the peer > is at fault or pf saw a packet reducing your window size which got lost > before the peer saw it. How regularly does this occur? > I'm going to test this in the weekend. I don't have much time at the moment. If i get the time i'm going to try to reproduce this at work tomorrow. Thanks alot for your help, flo
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