From owner-freebsd-questions Thu Nov 9 22: 7: 6 2000 Delivered-To: freebsd-questions@freebsd.org Received: from draenor.org (draenor.org [196.36.119.129]) by hub.freebsd.org (Postfix) with ESMTP id 5B98A37B479 for ; Thu, 9 Nov 2000 22:06:54 -0800 (PST) Received: from marcs by draenor.org with local (Exim 3.16 #1) id 13u7Ix-00025R-00; Fri, 10 Nov 2000 08:04:51 +0200 Date: Fri, 10 Nov 2000 08:04:51 +0200 From: Marc Silver To: Tim McMillen Cc: nathan , "John E. Adams" , freebsd-questions@FreeBSD.ORG Subject: Re: Packet size Message-ID: <20001110080451.A6201@draenor.org> References: <3A0AD173.7556935@telecom.ksu.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: ; from timcm@umich.edu on Thu, Nov 09, 2000 at 12:42:33PM -0500 X-Operating-System: FreeBSD 4.1-STABLE Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG From what I recall, you're right Tim. The problem comes when you have a larger MTU under FreeBSD than Windows can cope with by default. What ends up happening is that the packet sizes are too large for the Windows machines and so you have data loss between windows machines using FreeBSD as a gateway etc. Cheers, Marc On Thu, Nov 09, 2000 at 12:42:33PM -0500, Tim McMillen wrote: > > That may be how you do it, but correct me if I'm wrong, it's not a very > good idea. I saw a message regarding this and I don't know what the > reason was. Something about it's already where it's supposed to be, and > changing it can cause instabilities. It is possible the message was > refferring to something more specific than TCP. So like I said if > somebody knows, correct me. > > Tim > > On Thu, 9 Nov 2000, nathan wrote: > > > i love the mailing list archives. > > searching for "tcp window" i found: > > > > --snip-- > > freebsd, you can set many system parameters using sysctl. > > If I remember correctly, you want to set the parameter > > net.inet.tcp.receivespace. You can get a complete list of > > settings with command sysctl -A. > > --snip-- > > > > eg on my box: > > > > sysctl -A | grep net > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-questions" in the body of the message > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message -- Change will happen whether we're still or moving... -- Toad the Wet Sprocket To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message