Date: Thu, 10 Aug 2000 23:29:16 +0200 From: Guido van Rooij <guido@gvr.org> To: freebsd-net@freebsd.org Cc: John Polstra <jdp@polstra.com> Subject: Re: Perhaps a TCP stack problem? Message-ID: <20000810232916.A25672@gvr.gvr.org> In-Reply-To: <20000810230903.A25260@gvr.gvr.org>; from Guido van Rooij on Thu, Aug 10, 2000 at 11:09:03PM %2B0200 References: <20000810095049.C17481@gvr.gvr.org> <XFMail.000810065353.jdp@polstra.com> <20000810223937.A24172@gvr.gvr.org> <20000810230903.A25260@gvr.gvr.org>
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On Thu, Aug 10, 2000 at 11:09:03PM +0200, Guido van Rooij wrote: > On Thu, Aug 10, 2000 at 10:39:37PM +0200, Guido van Rooij wrote: > > A couple of days ago, I discovered that the cvsup server kept sending > > my system ACKs where my firewall in between thought that the connection > > was long gone. The firewall does have the policy to just send a RST > > in response. However, the RST sent was incorrect: > > > > 22:14:52.807104 AAA.BBB.CCC.DDD.5999 > UUU.VVV.WWW.XXX.1035: . 145135143:145135144(1) ack 40231428 win 17520 (DF) > > 22:14:52.808313 UUU.VVV.WWW.XXX.1035 > AAA.BBB.CCC.DDD.5999: R 4254735869:4254735869(0) ack 0 win 0 > > When looking further, the RST _is_ correct. It is just my tcpdump that was > broken. Here are the packets: Please disregard this second email. The first one was correct after all. (the sequence number of the RST should have been set to the ACK value of the first packet). -Guido To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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