[pkg-ntp-maintainers] Bug#616717: ntpdate in squeeze not working older v3 ntp servers

[Sven Verluyten]

Package: ntpdate
Version: 1:4.2.6.p2+dfsg-1+b1


Hi,

A very consistent and easy to reproduce issue:

Affecting: Debian Squeeze (not lenny or older, Sid untested)
Package: ntpdate
Version: 1:4.2.6.p2+dfsg-1+b1

Issue: ntpdate to a server using v3 (for example any windows domain
controller offering ntp service on port 123/udp), forcing version option
changes nothing.
The very same command using v3 ntpdate to the same servers from an Etch or
Lenny work flawlessly
Both the squeeze and lenny test show same tcpdump output, no difference
there.


The debug messages show no error but a clear difference:
- Working update via v4 ntp server:
$ ntpdate ip-of--v4-ntp-server

originate timestamp: d11e76b8.9d3a3be8  Sun, Mar  6 2011 22:10:16.614
transmit timestamp:  d11e76b8.994decb6  Sun, Mar  6 2011 22:10:16.598
filter delay:  0.02640  0.02605  0.02605  0.02605 
         0.00000  0.00000  0.00000  0.00000 
filter offset: 0.015105 0.015042 0.015068 0.015085
         0.000000 0.000000 0.000000 0.000000
delay 0.02605, dispersion 0.00002
offset 0.015042
 6 Mar 22:10:18 ntpdate[24537]: adjust time server x offset 0.015042 sec


- Not working update via any v3 windows ntp server you may find:
$ ntpdate ip-of-windows-v3-ntp-server
reference time:    d11e74fc.b978e91f  Sun, Mar  6 2011 22:02:52.724
originate timestamp: d11e7739.c5811a46  Sun, Mar  6 2011 22:12:25.771
transmit timestamp:  d11e7739.c0018479  Sun, Mar  6 2011 22:12:25.750
filter delay:  0.00000  0.00000  0.00000  0.00000 
         0.00000  0.00000  0.00000  0.00000 
filter offset: 0.000000 0.000000 0.000000 0.000000
         0.000000 0.000000 0.000000 0.000000
delay 0.00000, dispersion 64.00000
offset 0.000000
 6 Mar 22:12:27 ntpdate[24539]: no server suitable for synchronization found




Regards
Sven