I can't get a Windows Client to sync to my NTP server.  All Linux
clients work fine.

Here is the info from my ntp.conf:

driftfile /var/lib/ntp/drift
restrict 127.0.0.1
restrict <my-internal-net> mask 255.255.224.0 nomodify notrap 
server 0.rhel.pool.ntp.org iburst
server 1.rhel.pool.ntp.org iburst
server 2.rhel.pool.ntp.org iburst


Here is the tcpdump and ntpd -d info:

TCP DUMP OUTPUT:

13:02:19.440054 IP <srvr>.ntp > <windows-client>.ntp: NTPv3, symmetric
active, length 48


ntpd -d output

receive: at 447 cent.ntp<-winclient mode 1 code 5 auth 0
transmit: at 447 cent.ntp->winclient mode 1


IPTables is off for testing

Any suggestions?

Thanks

Perhaps authentication is causing some trouble.

Try adding "disable auth" temporarily to help
narrow it down.

"Matthew Lind" <mlind@ccsnh.edu> wrote in message
news:1206727876.17924.33.camel@wh-124138.admin.nhti...

> I can't get a Windows Client to sync to my NTP server.
> All Linux clients work fine.
[...]
> TCP DUMP OUTPUT:
>
> 13:02:19.440054 IP <srvr>.ntp > <windows-client>.ntp: NTPv3,
> symmetric active, length 48
  ^^^^^^^^^^^^^^^^

Don't do that. W32Time is asking to be a peer, which it has absolutely
no business to.

There have been recent posts (last two weeks or so) about how
to add a byte at the end of the name to request a less abusive
relationship with the NTP server.

Groetjes,
Maarten Wiltink

starlight@binnacle.cx wrote:
> Perhaps authentication is causing some trouble.
> 
> Try adding "disable auth" temporarily to help
> narrow it down.

That won't help.

w32time does not support the same authentication as ntpd. Also,
authentication in ntpd is used to let the client verify the reply it
receives has really been sent by the configured NTP server.

When the server receives a request without signature it also just sends a
reply without signature.

If the w32time client sends "symmetric active" requests it should be
re-configured to send normal "client" requests, as expected for this type
of operation. See:
http://www.meinberg.de/english/faq/faq_28.htm

Martin
-- 
Martin Burnicki

Meinberg Funkuhren
Bad Pyrmont
Germany