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Router 2901 as NTP Server for Windows 2003 Network

Hello. I am trying to configure a 2901 router to act as NTP server on my network.

This set "ntp master" in the router.

I have no possibility to access an NTP server on the Internet.

# show ntp Associations

   address ref clock st poll reach delay offset When NowNot

* ~ LOCL. 7 10 16 377 0,000 0,000 0,245

  * Sys.peer, # selected, + candidate, - outlyer, x falseticker, ~ configured

Now I want to configure a Windows 2003 DC to update the time from the NTP Server (router 2901).

But I have some doubts:

In Windows 2003, the registry value "NtpServer" may have to be IP addresses or FQDN? (In my case I put router_ip_address, 0x1) 0x1 = use this "SpecialPollInterval" to update the time?

In the router I have this debug:

Sep 20 20:05:50.655: NTP message received from W2K3_SERVER_IP on interface 'GigabitEthernet0 / 1' (ROUTER_2901_IP).

Sep 20 20:05:50.655: NTP Core (DEBUG): ntp_receive: message received

Sep 20 20:05:50.655: NTP Core (DEBUG): ntp_receive: peer is 0x00000000, next action is 3.

Sep 20 20:05:50.655: NTP Core (DEBUG): ntp_receive: doing fast answer to client.

Sep 20 20:05:50.655: NTP message sent to W2K3_SERVER_IP, from interface 'GigabitEthernet0 / 1' (ROUTER_2901_IP).

Where you can find that these actions mean "next action is 3"??

In Event Log in Windows 2003 DC receipt Event ID 35:

The time service is now synchronizing the system time with the time source ROUTER2901_IP (ntp.m | 0x1 | W2K3_SERVER_IP: 123 -> ROUTER2901_IP: 123).

Configure "SpecialPollInterval" in 10 seconds.

But the time on the Windows Server 2003 DC continuous five minutes ahead of time compared to the 2901 router.

What am I doing wrong? or how I can check if it is working or not?


Jeff Van Houten

Windows. 2003 uses sntp, not ntp. Not going to work.

Sent from Cisco Technical Support iPad App

Windows server 2003 is supposed to support NTP:

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