Date: Sat, 17 Nov 2001 23:22:54 -0500 From: "Matthew Emmerton" <matt@gsicomp.on.ca> To: <freebsd-questions@FreeBSD.ORG>, <jacks@sage-american.com> Subject: Re: More PPPoE DSL Message-ID: <048e01c16fe8$b613eee0$1200a8c0@gsicomp.on.ca> References: <3.0.5.32.20011117220014.00f8efc0@mail.sage-american.com>
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> As an update to earlier posts, I finally configured the PPP and have made > connection on a PPPoE DSL 4.4-STABLE setup, but have not pinged out yet. > I've had to stop there for now for other duties. > > In the meantime, back to normal work using a Win2K DSL gateway setup for > the LAN which includes Win2K and FreeBSD stations. It's a dynamic IP ISP > connection. The gateway Win2K machine with the DSL has NO problems with any > applications. > > BUT, with the other machines on the LAN, there are a couple of problems... > only with email replies and FTP UPloading. While I don't have any problems > whith downloading using the BSDs (or the Win2Ks either), I can't upload... > it starts, then locks up & has to be rebooted to break the connections. I > suspect MTU size packets may be the culprit. It should be set to 1492, but > the ifconfig -a shows the BSD interface set at 1500. It's quite possible that when using the Win2K machine as your gateway, traffic from other hosts on the LAN isn't getting handle properly out on the Internet, and never makes it back to your LAN. This is known as the TCP MSS bug, and is explained here (http://www.daemonnews.org/200101/pppoe.html, see section 6.3), along with instructions on how to fix your Win2K machine. (Ignore the 'enable tcpmssfixup' stuff -- it's the default in FreeBSD's PPP now.) -- Matt Emmerton To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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