Solved

cisco router didn't synchronized with ntp server

Posted on 2012-12-26
4
1,795 Views
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.
0
Comment
Question by:ameriaadmin
  • 2
  • 2
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
0
 

Author Comment

by:ameriaadmin
ID: 38723455
192.168.200.95 and 192.168.200.195 my local ntp servers. access permitted for clients.
0
 
LVL 18

Accepted Solution

by:
Akinsd earned 500 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.
0
 

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.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
checking for updates 11 59
Port 808 is being blocked 9 63
Routing 2 local networks together 8 72
NAS with google authentication 6 63
How to set-up an On Demand, IPSec, Site to SIte, VPN from a Draytek Vigor Router to a Cyberoam UTM Appliance. A concise guide to the settings required on both devices
Shadow IT is coming out of the shadows as more businesses are choosing cloud-based applications. It is now a multi-cloud world for most organizations. Simultaneously, most businesses have yet to consolidate with one cloud provider or define an offic…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
This video gives you a great overview about bandwidth monitoring with SNMP and WMI with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're looking for how to monitor bandwidth using netflow or packet s…

895 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

11 Experts available now in Live!

Get 1:1 Help Now