bin/121059: [ntp] ntpd doesn't sync with servers after dhclient changes IP

[Hark]

>Number:         121059
>Category:       bin
>Synopsis:       [ntp] ntpd doesn't sync with servers after dhclient changes IP
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Feb 24 20:40:01 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator:     Domagoj Hranjec
>Release:        FreeBSD 6.3-RELEASE-p1 i386
>Organization:
>Environment:
System: FreeBSD spitfire.dionet.hr 6.3-RELEASE-p1 FreeBSD 6.3-RELEASE-p1 #0: Wed Feb 13 02:40:56 UTC 2008 root at i386-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC i386


	
>Description:
	After my IP address expires, ntpd doesn't sync with external NTP servers anymore.

Feb 22 18:03:49 spitfire ntpd[697]: ntpd 4.2.0-a Tue Jan 15 23:29:41 UTC 2008 (1)
Feb 22 18:15:37 spitfire ntpd[697]: time reset -0.853664 s
Feb 22 18:15:37 spitfire ntpd[697]: kernel time sync disabled 2041
Feb 22 18:38:05 spitfire ntpd[697]: kernel time sync enabled 2001
Feb 22 23:26:27 spitfire ntpd[697]: kernel time sync enabled 6001
Feb 22 23:27:52 spitfire ntpd[697]: kernel time sync enabled 2001
Feb 23 08:15:57 spitfire ntpd[697]: kernel time sync enabled 6001
Feb 23 08:51:15 spitfire ntpd[697]: kernel time sync enabled 2001
Feb 23 09:59:33 spitfire ntpd[697]: kernel time sync enabled 6001
Feb 23 10:16:38 spitfire ntpd[697]: kernel time sync enabled 2001
Feb 23 11:24:55 spitfire ntpd[697]: kernel time sync enabled 6001
Feb 23 11:40:50 spitfire ntpd[697]: kernel time sync enabled 2001
Feb 23 12:15:00 spitfire ntpd[697]: kernel time sync enabled 6001
Feb 23 12:32:04 spitfire ntpd[697]: kernel time sync enabled 2001
Feb 23 13:24:29 spitfire ntpd[697]: kernel time sync enabled 6001
Feb 23 13:40:20 spitfire ntpd[697]: kernel time sync enabled 2001
Feb 23 14:48:37 spitfire ntpd[697]: kernel time sync enabled 6001
Feb 23 15:05:41 spitfire ntpd[697]: kernel time sync enabled 2001
Feb 23 16:49:25 spitfire ntpd[697]: time reset -0.215929 s
Feb 23 17:31:14 spitfire ntpd[697]: time reset +0.160516 s
Feb 23 18:03:50 spitfire dhclient: New IP Address (rl0): xx.xxx.x.x
Feb 23 18:03:50 spitfire dhclient: New Subnet Mask (rl0): 255.255.252.0
Feb 23 18:03:50 spitfire dhclient: New Broadcast Address (rl0): 255.255.255.255
Feb 23 18:03:50 spitfire dhclient: New Routers (rl0): xx.xxx.x.x

ntpq> peers
     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
 zg1.ntp.CARNet. .INIT.          16 u 208m 1024    0    0.000    0.000 4000.00
 zg2.ntp.CARNet. .INIT.          16 u 212m 1024    0    0.000    0.000 4000.00

Remote servers stay in .INIT. and won't sync anymore. 

	
>How-To-Repeat:
	Configure dhclient and ntpd and wait for IP to expire.
	
>Fix:
	Perhaps this one?:
https://support.ntp.org/bugs/show_bug.cgi?id=51 
	


>Release-Note:
>Audit-Trail:
>Unformatted: