Date: Tue, 30 Jan 2007 15:16:34 +0200 From: Alexander Motin <mav@alkar.net> To: Nikos Vassiliadis <nvass@teledomenet.gr> Cc: net@freebsd.org Subject: Re: ng_pptpgre problems: tcp connections reset unexpectedly. TCP guru needed! Message-ID: <45BF4532.7060203@alkar.net> In-Reply-To: <200701301226.35612.nvass@teledomenet.gr> References: <1169850194.00677461.1169839202@10.7.7.3> <1170080583.00678976.1170067803@10.7.7.3> <45BE3C17.3070606@alkar.net> <200701301226.35612.nvass@teledomenet.gr>
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Nikos Vassiliadis wrote: >>>It seems to work with disabled windowing. If you are interested in >>>tracking down this, I would be glad to help. >> >>I will try to look into it. If you will have some more interesting >>results send them to me. > > I can provide you a pptp peer to connect to. I can reproduce it > easily from home, I am opening a pptp tunnel over the pppoe > connection and it happens frequently. Last night I was thinking of it and I was able to reproduce this sometimes, but it was not predictable. For this moment I have no idea about reason of this problem. There is one problem with windowing in ng_pptpgre and I am now working on it, but it can only results in packet losses, but not in connection reset. I think we need some TCP guru to understand this. -- Alexander Motin mav@alkar.net Optima Telecom
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