From owner-freebsd-hackers  Sun Sep 21 17:34:26 1997
Return-Path: <owner-freebsd-hackers>
Received: (from root@localhost)
          by hub.freebsd.org (8.8.7/8.8.7) id RAA27757
          for hackers-outgoing; Sun, 21 Sep 1997 17:34:26 -0700 (PDT)
Received: from bitbox.follo.net (bitbox.follo.net [194.198.43.36])
          by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id RAA27712;
          Sun, 21 Sep 1997 17:34:13 -0700 (PDT)
Received: (from eivind@localhost)
	by bitbox.follo.net (8.8.6/8.8.6) id CAA24672;
	Mon, 22 Sep 1997 02:34:10 +0200 (MET DST)
Date: Mon, 22 Sep 1997 02:34:10 +0200 (MET DST)
Message-Id: <199709220034.CAA24672@bitbox.follo.net>
From: Eivind Eklund <perhaps@yes.no>
To: Brian Somers <brian@FreeBSD.ORG>
CC: hackers@FreeBSD.ORG
In-reply-to: Brian Somers's message of Sun, 21 Sep 1997 16:02:39 -0700 (PDT)
Subject: Re: cvs commit: src/usr.sbin/ppp lcp.c
References: <199709212302.QAA14109@freefall.freebsd.org>
Sender: owner-freebsd-hackers@FreeBSD.ORG
X-Loop: FreeBSD.org
Precedence: bulk

> 
> brian       1997/09/21 16:02:38 PDT
> 
>   Modified files:        (Branch: RELENG_2_2)
>     usr.sbin/ppp         lcp.c 
>   Log:
>   MFC: Sleep for a second before sending the first LCP
>        config request.  This stops us from squirting stuff
>        down a line that still has ECHO turned on because the
>        peer hasn't had a chance to start yet.
>        Lead to the cause by:	Greg Lehey <grog@lemis.com>

Isn't detecting this what the magic number more-or-less was introduced
for?  You can catch looping LCP-negotiation by looking for the same
magic number, and it really seems a pity to waste a second on
connection, as this could be running on really fast links (like TCP or
ISDN links).  Besides, if the other end is slow, 1 second might not be
enough.

Eivind.