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Date:      Thu, 13 Dec 2001 15:50:01 -0800 (PST)
From:      Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
To:        freebsd-bugs@FreeBSD.org
Subject:   bin/32816: ntpd/ntpdc incompatibility across the last two versions
Message-ID:  <200112132350.fBDNo1I94041@freefall.freebsd.org>

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The following reply was made to PR bin/32816; it has been noted by GNATS.

From: Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
To: Yar Tikhiy <yar@comp.chem.msu.su>
Cc: FreeBSD-gnats-submit@FreeBSD.ORG
Subject: bin/32816: ntpd/ntpdc incompatibility across the last two versions
Date: Thu, 13 Dec 2001 18:47:00 -0500 (EST)

 <<On Fri, 14 Dec 2001 02:23:32 +0300 (MSK), Yar Tikhiy <yar@comp.chem.msu.su> said:
 
 > If the older ntpdc is used to talk to the newer ntpd or vice versa,
 > a packet format error occurs.  That's while no such incompatibility
 > has been announced.
 
 ntpdc is never compatible across versions of ntpd, except by
 fortuitous coincidence.  Dave Mills has made it clear that ntpdc's
 mode 7 control messages are specific to the version of ntpd.
 
 -GAWollman
 

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