Subject: Re: [ntp:hackers] ifconfig if down .. up -> ntpd loses
To: Frank Kardel <>
From: Brad Knowles <>
List: current-users
Date: 08/16/2005 23:01:14
At 10:48 PM +0200 2005-08-16, Frank Kardel wrote:

>  Am I the only one seeing this ? This does not seem right as the
>  previous address is gone it doesn't seem to make sense that udp
>  endpoints remain stuck on invalid addresses. Not even an error is
>  reported in ntpd. Applications seem to be kept in the dark about
>  being disconnected from the sane world.

	Known problem.  I can just about quote the bug from memory now -- 
I think it's #52.  The issue is that ntpd only scans the interfaces 
to see which ones to bind to on startup, and doesn't re-scan the 
interfaces later.

	If you search the archives of the 
mailing list (or the comp.protocols.time.ntp newsgroup), you should 
see just about every third post coming up with this same issue.

	Anyway, it's a known bug, and will be fixed in the relatively 
near future.  But maybe not until after 4.2.1 is released (hopefully 
within a couple of weeks).

Brad Knowles, <>

"Those who would give up essential Liberty, to purchase a little
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     -- Benjamin Franklin (1706-1790), reply of the Pennsylvania
     Assembly to the Governor, November 11, 1755

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