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To: sos@freebsd.org
cc: brian@mpress.com, freebsd-current@freebsd.org
Subject: Re: tcp_extenions=NO between to FreeBSD Hosts!? 
In-reply-to: Your message of "Sun, 12 Jan 1997 09:58:32 +0100."
             <199701120858.JAA11995@ravenock.cybercity.dk> 
Date: Sun, 12 Jan 1997 11:06:08 +0100
Message-ID: <13445.853063568@critter.dk.tfs.com>
From: Poul-Henning Kamp <phk@critter.dk.tfs.com>
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In message <199701120858.JAA11995@ravenock.cybercity.dk>, sos@freebsd.org write
s:
>In reply to brian@mpress.com who wrote:
>> The following two hosts
>> 
>> FreeBSD top.mediacity.com 3.0-CURRENT FreeBSD 3.0-CURRENT #0: Sat Jan 11 01:
>17:49  1997     brian@research.mpress.com:/uss/src/sys-UP/compile/LAPTOP  i386
>  
>> 
>> FreeBSD garfield.panix.com 2.2-BETA_A FreeBSD 2.2-BETA_A #0: Sat Jan 11 20:3
>3:29 PST 1997     larry@garfield.panix.com:/usr/src/sys/compile/LAPTOP-PCD  i3
>86
>> 
>> cannot talk tcp between each other unless one of us has issued the command:
>> 
>> sysctl -w net.inet.tcp.rfc1644=0
>> 
>> so is the problem one of us, or a router in between us?
>
>I've seen this too, but here the culprit was IIRC an annex ISDN server.

In particular, it was probably related to VJ compression.

--
Poul-Henning Kamp           | phk@FreeBSD.ORG       FreeBSD Core-team.
http://www.freebsd.org/~phk | phk@login.dknet.dk    Private mailbox.
whois: [PHK]                | phk@tfs.com           TRW Financial Systems, Inc.
Power and ignorance is a disgusting cocktail.