From owner-freebsd-doc Sun Jul 16 6:25:34 2000 Delivered-To: freebsd-doc@freebsd.org Received: from scientia.demon.co.uk (scientia.demon.co.uk [212.228.14.13]) by hub.freebsd.org (Postfix) with ESMTP id D96BA37B5C5 for ; Sun, 16 Jul 2000 06:25:28 -0700 (PDT) (envelope-from ben@scientia.demon.co.uk) Received: from strontium.scientia.demon.co.uk ([192.168.91.36] ident=exim) by scientia.demon.co.uk with esmtp (Exim 3.15 #1) id 13DoJm-0008dc-00; Sun, 16 Jul 2000 14:18:50 +0100 Received: (from ben) by strontium.scientia.demon.co.uk (Exim 3.15 #1) id 13DoJm-000C60-00; Sun, 16 Jul 2000 14:18:50 +0100 Date: Sun, 16 Jul 2000 14:18:50 +0100 From: Ben Smithurst To: "Chris D. Faulhaber" Cc: doc@FreeBSD.org Subject: Re: Suggested addition to PPP FAQ - solution for Macintoshes and Black Hole DSL routers Message-ID: <20000716141850.U84045@strontium.scientia.demon.co.uk> References: <3970B730.C4D28290@mac.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-md5; protocol="application/pgp-signature"; boundary="3wfpuDtTLg8/Vq6g" Content-Disposition: inline User-Agent: Mutt/1.2i In-Reply-To: Sender: owner-freebsd-doc@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org --3wfpuDtTLg8/Vq6g Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Chris D. Faulhaber wrote: > > - Why do my Windows 98 connections freeze when I run PPPoE on th= e gateway > + Why do Mac and Windows 98 connections freeze when running PPPo= E on the gateway > I think I'd say "MacOS" instead of "Mac" here. > > - This is due to what's called a "Black Hole" router. Windows 98 (and > - maybe other Microsoft OSs) is sending TCP packets with a requested > - segment size too big to fit into a PPPoE frame (MTU is 1500 by defau= lt > - for ethernet) and have the "don't fr= agment" > - bit set (default of TCP) and the Telco router is not sending ICMP "m= ust > + This is due to what's called a "Black Hole" router. MacOS and Windo= ws 98 > + (and maybe other Microsoft OSs) send TCP packets with a requested se= gment > + size too big to fit into a PPPoE frame (MTU is 1500 by default for > + ethernet) and have the "don't fragme= nt" bit > + set (default of TCP) and the Telco router is not sending ICMP "must I've reorganised that so fewer lines are changed (I think it's easier for translators that way). =2E.. - This is due to what's called a "Black Hole" router. Windows 98 (and - maybe other Microsoft OSs) is sending TCP packets with a requested + This is due to what's called a "Black Hole" router. MacOS and Windows= 98 (and + maybe other Microsoft OSs) send TCP packets with a requested segment size too big to fit into a PPPoE frame (MTU is 1500 by default =2E.. I'll commit your patch soon unless anyone objects, or you'd rather do it yourself. It's a bit better than the patch I created was, anyway. :-) --=20 Ben Smithurst / ben@FreeBSD.org / PGP: 0x99392F7D FreeBSD Documentation Project / --3wfpuDtTLg8/Vq6g Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: PGPfreeware 5.0i for non-commercial use MessageID: anmFXNT20Lf7ZYmREHfhYv9qp7OhDL7C iQCVAwUBOXG2OSsPVtiZOS99AQFTYgP+O3CuzKROKMo30OCYCzP0UjF6uDds5MsC tN2yBy8CtRa8iba9GieJ1xMwQUAdYfw8jF7DQAZxivK5xPN8aBfW14pErWinLJ+l rDMzrxXNqNCofI0rI2hwT9H2f8JP+SYp3H5fx09MK4rZiyLzYQdVLLcPF5Tv3jtH s96w7d0wpFQ= =tnHD -----END PGP SIGNATURE----- --3wfpuDtTLg8/Vq6g-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-doc" in the body of the message