Date: Fri, 30 Jun 2000 08:58:56 -0400 (EDT) From: Michael Lucas <mwlucas@blackhelicopters.org> To: freebsd-security@freebsd.org Subject: Re: ipfilter & pptp & freebsd Message-ID: <200006301258.IAA20130@blackhelicopters.org> In-Reply-To: <Pine.LNX.4.21.0006291643350.28006-100000@jason.argos.org> from Mike Nowlin at "Jun 29, 2000 4:49:29 pm"
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(I'm answering this one message and copying the list, rather than copying the list on *all* the replies.) An interface mismatch doesn't appear to be the problem; other transfers go lickety-split. I can download huge files without difficulty. It doesn't appear to be packet loss. netstat -i doesn't show anything unusual. I've pulled all the firewall rules, leaving only a "pass any to any" and the NAT. No better. Also, I've tried a bimap. No change. One other thing: according to the little PPTP box on Windows (for what it's worth), the speed starts off quick. It just slows down gradually, until it reaches a dead crawl. The firewall packet log seems to agree, although I haven't done a detailed line-by-line analysis to see how many packets pass at any given second. Might ipfw/natd work better? Anyone have any other ideas? ==ml > Speed issues like this can be caused by half/full duplex mismatching on > the ethernet interfaces. I had one the other day that had been running > for several months (with occasional reboots without any problems), and > then after the last reboot, the auto-negotiation failed between the switch > and the fxp card -- the switch was running 100-half, and the fxp card was > running 100-full... Result? Estimated 27 hours to transfer a 1.3gig > file. Rebooted & forced the parameters on both switch & fxp to 100-full, > and the transfer took no time at all. > > You may want to try doing some large transfers between the FBSD<->Windows > box and FBSD<->OutsideWorld to see what happens. If this is your problem, > one or both of these will be cripplingly slow. > > mike > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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