From owner-freebsd-current  Sun Jul 30 01:18:33 1995
Return-Path: current-owner
Received: (from majordom@localhost)
          by freefall.cdrom.com (8.6.11/8.6.6) id BAA27473
          for current-outgoing; Sun, 30 Jul 1995 01:18:33 -0700
Received: from mpp.minn.net (mpp.Minn.Net [204.157.201.242])
          by freefall.cdrom.com (8.6.11/8.6.6) with ESMTP id BAA27462
          for <current@freebsd.org>; Sun, 30 Jul 1995 01:18:28 -0700
Received: (from mpp@localhost) by mpp.minn.net (8.6.11/8.6.9) id DAA02235; Sun, 30 Jul 1995 03:18:21 -0500
From: Mike Pritchard <mpp@mpp.minn.net>
Message-Id: <199507300818.DAA02235@mpp.minn.net>
Subject: Re: Clunky telnet/rlogin performance
To: cml@aureus.mother.com (Chris)
Date: Sun, 30 Jul 1995 03:18:21 -0500 (CDT)
Cc: root@io.cts.com, current@freebsd.org
In-Reply-To: <199507300814.BAA07069@aureus.mother.com> from "Chris" at Jul 30, 95 01:14:07 am
X-Mailer: ELM [version 2.4 PL24]
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Content-Length: 922       
Sender: current-owner@freebsd.org
Precedence: bulk

Chris wrote:
> 
> $! 	FreeBSD -> [ISP] -> BSD/OS
> $! 
> $! It's like some kind of protocol compatibility problem, and it never gets
> $! better.
> $! 
> $! If an intermediate system is used, e.g.:
> $! 
> $! 	FreeBSD -> [ISP] -> SCO Unix -> BSD/OS
> $! 
> $! performance is excellent.  Take the intermediate site out and it's
> $! back to sluggish response.
> 
> Easy fix.
> 
> cd /usr/src/sys/netinet
> vi tcp_subr.c
> 	line 71,72, toggle the values of
> 	
> 		int     tcp_do_rfc1323 = 1; /* change to 0 */
> 		int     tcp_do_rfc1644 = 1; /* change to 0 */
> wq!
> 
> recompile kernel.
> reboot.
> end of problem.

If that is the problem, the easier solution is to edit /etc/sysconfig 
and set "tcp_extensions=NO".  That will run a couple of "sysctl"
commands in /etc/netstart to set the above two variables
to zero. 
-- 
Mike Pritchard
mpp@mpp.minn.net
"Go that way.  Really fast.  If something gets in your way, turn"