Date: Sun, 16 Jul 2000 14:18:50 +0100 From: Ben Smithurst <ben@FreeBSD.org> To: "Chris D. Faulhaber" <jedgar@fxp.org> 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> In-Reply-To: <Pine.BSF.4.21.0007151706280.93031-200000@pawn.primelocation.net> References: <3970B730.C4D28290@mac.com> <Pine.BSF.4.21.0007151706280.93031-200000@pawn.primelocation.net>
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Chris D. Faulhaber wrote:
> <question>
> - <para>Why do my Windows 98 connections freeze when I run PPPoE on th=
e gateway</para>
> + <para>Why do Mac and Windows 98 connections freeze when running PPPo=
E on the gateway</para>
> </question>
I think I'd say "MacOS" instead of "Mac" here.
> <para>
> - 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) <emphasis remap=3Dbf>and</emphasis> 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) <emphasis remap=3Dbf>and</emphasis> 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..
<para>
- 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 /
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