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cisco router didn't synchronized with ntp server

Posted on 2012-12-26
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Last Modified: 2013-05-15
hello experts
I can't get Cisco router synchronized with the ntp server.

#show run | in ntp
ntp source Vlan1
ntp server 195.168.200.195
ntp server 195.168.200.95

#show ntp associations
  address         ref clock       st   when   poll reach  delay  offset   disp
 ~195.168.200.195 .INIT.          16      -   1024     0  0.000   0.000 15937.
 ~195.168.200.95  .INIT.          16      -   1024     0  0.000   0.000 15937.
 * sys.peer, # selected, + candidate, - outlyer, x falseticker, ~ configured


#show ntp status
Clock is unsynchronized, stratum 16, no reference clock
nominal freq is 249.9433 Hz, actual freq is 249.9433 Hz, precision is 2**16
reference time is 00000000.00000000 (23:59:00.000 MSD Mon Jan 1 1900)
clock offset is 0.0000 msec, root delay is 0.00 msec
root dispersion is 1.03 msec, peer dispersion is 0.00 msec
loopfilter state is 'FSET' (Drift set from file), drift is 0.000000000 s/s
system poll interval is 64, never updated.
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Question by:ameriaadmin
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4 Comments
 
LVL 18

Expert Comment

by:Akinsd
ID: 38722868
Can you ping the ntp server (I can't ping it from my end)
Are the addresses valid or just not responding to pings

If yes
Is there any firewall policy blocking port 123
I'm assuming you have

Stratum 16?
That's too many generations -

Try linking to one of these Open Access Stratum servers closest to you.
http://support.ntp.org/bin/view/Servers/StratumOneTimeServers

I use these 2
*~128.9.176.30
+~216.218.254.202
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Author Comment

by:ameriaadmin
ID: 38723455
192.168.200.95 and 192.168.200.195 my local ntp servers. access permitted for clients.
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LVL 18

Accepted Solution

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Akinsd earned 1500 total points
ID: 38723822
Ok

I see your ntp servers have private IPs.

In your question, you typed
ntp server 195.168.200.195
ntp server 195.168.200.95
Both addresses are public addresses

In your reply, you typed private addresses
192.168.200.95 and 192.168.200.195

Which is the correct IP?

Looks like you may have typed the wrong ip address when configuring the ntp on your router.
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Author Comment

by:ameriaadmin
ID: 38726114
I have coped and paste, but I don't know why it shows 195. my addresses are 95.168.200.195
and 195.168.200.95. It is right in my configs.
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