Re: w32Time - External Source Sinc - HELP!!

Thanks to you Cary and to strongline to spend some of your time on this.

My DC is behind an ISA 2004 EE Array consisting on two nodes, I've created
the rules:

Allow "All Outbound Traffic" from "Internal" to "External".
Allow "NTP(UDP) - Port 123" from "External" to "Internal"

The firewall does not log any acces denied event in any direction, besides
that I continue receiving the same Events.

About monitoring network traffic (by strongline) I'm not sure how to
accomplish this task using "netmon". I can't realize how to create a filter
to watch only significant network frames for my issue.

Any further ideas?
Thanks a lot!!!

Beto.

"Cary Shultz" <cwshultz@xxxxxxxx> wrote in message
news:uvPE9$mpGHA.4268@xxxxxxxxxxxxxxxxxxxxxxx
Try looking at your Firewall and making sure that port 123 for UDP is open
in both directions....

--
Cary W. Shultz
Roanoke, VA 24012
"beto @ southworks" <beto@southworks> wrote in message
news:uwVqn$cpGHA.220@xxxxxxxxxxxxxxxxxxxxxxx
Hi! I've folowed (step by step) this MS Article to configure my forest
root domain controller to sync with an external source:
http://support.microsoft.com/?scid=kb%3Ben-us%3B816042&x=8&y=12
Mi DC is a VPC hosted on Virtual Server 2005 R2.

I've tried both configurations:
* Configure the W32time service to send symmetric active mode packets
and (by editing the registry)
* to send client mode packets to my NTP server list (by using "w32tm
/config /manualpeerlist:peers /syncfromflags:manual" )
Anyway I'm getting the following Events:


Event Type: Error
Event Source: W32Time
Event Category: None
Event ID: 29
Date: 12/07/2006
Time: 05:51:02 a.m.
User: N/A
Computer: PDC
Description:
The time provider NtpClient is configured to acquire time from one or more
time sources, however none of the sources are currently accessible. No
attempt to contact a source will be made for 240 minutes. NtpClient has no
source of accurate time.

<<One for each external source configured>>
===============================
Event Type: Warning
Event Source: W32Time
Event Category: None
Event ID: 47
Date: 12/07/2006
Time: 05:51:02 a.m.
User: N/A
Computer: PDC
Description:
Time Provider NtpClient: No valid response has been received from
manually configured peer tick.nap.com.ar,0x1 after 8 attempts to contact it.
This peer will be discarded as a time source and NtpClient will attempt to
discover a new peer with this DNS name.

<<One for each external source configured>>
==============================
Event Type: Information
Event Source: W32Time
Event Category: None
Event ID: 38
Date: 12/07/2006
Time: 04:36:01 a.m.
User: N/A
Computer: PDC
Description:
The time provider NtpClient cannot reach or is currently receiving invalid
time data from tick.nap.com.ar (ntp.m|0x1|10.1.0.12:123->200.10.140.2:123).



The Hotfix Q830092 does not apply to my server since its a Windows 2003
Server EE R2 (wich already includes a newer version of the w32time.dll
included shiiped with the Q830092).
I've tested all the selected NTP Servers and are fully functional, so I've
turned on w32tm.dll debugging, getting this dump for each time it tries to
get a timestamp from the listed NTP Servers.


Polling peer 216.244.192.3 (ntp.m|0x0|10.1.0.12:123->216.244.192.3:123)
Sending packet to 216.244.192.3
(ntp.m|0x0|10.1.0.12:123->216.244.192.3:123) in Win2K detect mode, stage 1.
No response from peer 216.244.192.3
(ntp.m|0x0|10.1.0.12:123->216.244.192.3:123).
5 Age:5 Ofs:+00.0000000s...
4 Age:4 Ofs:+00.0000000s...
3 Age:3 Ofs:+00.0000000s...
2 Age:2 Ofs:+00.0000000s...
1 Age:1 Ofs:+00.0000000s...
0 Age:0 Ofs:+00.0000000s...
Logging information: NtpClient cannot reach or is currently receiving
invalid time data from 216.244.192.3
(ntp.m|0x0|10.1.0.12:123->216.244.192.3:123).
Peer poll: Max:32.0000000s Cur:00.0000000s
PeerPollingThread: waiting 31.970s


I'ts driving me crazy since I've tried every article found on the web and
still cannot find what my issue.
Any (I mean ANY) help will be appreciated!!
Thanks a lot!!

Beto.






.

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