I have been trying for three days now to configure ntp in a Cisco router 3662 [(12.2(13)T16]. First i tried to obtain clock from a windows DC Server 2000 unsuccessful. The configuration is simple. I have added only the command ntp server <IP address>. I read somewhere that windows servers distribute clocking only to windows machines. Is that true? Then i tried to obtain clocking from a public ntp server. From debbuging i had activated i realized that no ntp reply was caming back. Can anyone help me...
Urgent....Thanks in advance!
I believe 172.16.1.53 is your windows server.
Again you must have in consideration that you cannot mix ntp client with sntp server, as you can see in the debug that the ntp client in your Cisco router does not accept your windows server as a valid time source.
If you dont need your router to have a time precision of less than 100ms, and if you dont need your router to act as a ntp time server itself, then you can use your windows server as the time source using sntp and maybe it is the best solution for you.
Try to check if your router accepts the "sntp server" command in cli configuration mode. I know of at least 3 different models from the 8xx series that has *both* features together, ntp and sntp.
In the event it does not have the sntp feature, you can look and find a public ntp server that best feats your situation (i.e. closest to your location) at http://www.pool.ntp.org