Elm. Change ntp server.

Hi.
I have elm and cucm installed on the save virtual host. I want change ntp server address on that host. Do it need to generate net license after tha or not ?

Hi ,
No.
In case of VMWARE, use 8 to 9 parameters to generate a license MAC. Even if you change any one of the parameters, such as NTP Address or the Time Zone, the license MAC will change. Then, you need to procure new licenses. However, with this Enterprise License Manager in place, even if you made those changes you do not have to worry about the licenses. There is a product instance that has already been added to the ELM. Even if you make any changes, it will grab the required license from ELM.
you can also refer the link
https://supportforums.cisco.com/docs/DOC-27483
regds,
aman

Similar Messages

OVS 2.2.2 - change ntp server

Hi all,
Would like to get some advice on changing the ntp server on our ovs 2.2.2 and ovm 2.2.2 hosts. Due to an oversight, our ntp server was decommissioned some time ago and as it stands now, our ovs/ovm hosts are about 30 minutes behind the current (new) ntp server.
What would be the sequence of changing the ntp servers on the hosts? Do I change the master server first and then the rest of the ovs hosts with the manager last? Or the manager first, followed by the master server and the rest?
Do I need to take each host into maintenance mode before changing the ntp server on each? But if I do that, then the master server changes if I take it into maintenance. Unless I don't need to change the setting on each hosts in any particular order.
My worry is once a host syncs with the new ntp server, the 30 minute difference can cause some issues.
Your advice is much appreciated. Thanks.

Thanks for the reply. I was hoping the 30 minute difference wouldn't be a an issue. If it was just a few minutes, i would have "ntpd'ed" them already.
But thought I'll check here to see if there could be any idiosyncracies in ovs 2.2.2 that may spit the dummy if one of them is suddenly 30 minutes ahead.
Thanks again.

Does Phone NTP Server reference change my licensed files, (CUCM)?

Hi all,
Good day.
I just wanted to know of on my CUCM Admin web page, on PHONE NTP REFERENCE, if adding or deleting NTP's does make my CUCM to re-host my active licensed files.
Because I changed the NTP server on the CLI call manager, (delete it and added one). And now all my licenses are invalid
I have a few more questions.
Which are the differences between of the Phone NTP Reference Server and NTP reference servers (CLI)?
Which one I do not must change?
If mi licenses say "Invalid", what is the worst case scenario could happen with my current configurations of IP Phones/GW/GK/Trunks/CSS?
Thanks in advice.
John

I assume you are using a UCS server,,,
The license MAC is generated by hashing the following user-configured parameters:
◊ Time zone
◊ NTP server 1 (or ?none?)
◊ NIC speed (or ?auto?)
◊ Hostname
◊ IP Address (or ?dhcp?)
◊ IP Mask (or ?dhcp?)
◊ Gateway Address (or ?dhcp?)
◊ Primary DNS (or ?dhcp?)
◊ SMTP server (or ?none?)
◊ Certificate Information (Organization, Unit, Location, State, Country)
When you change any of the parameters that create the license MAC, the license that you obtained with it becomes invalid. You must request a rehosting of the license to obtain a valid license. The old license continues to work for a 30-day grace period.
To rehost your licenses, you must open a case with the licensing team. Contact the licensing team at [email protected]
During the grace period, you can change the settings back to the licensed values to make your original license valid again. If you need more than 30 days of grace period, change your settings back to the licensed values, then change them back to the new values that you want to use. You will get another 30- day grace period.
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W32tm always on "Local CMOS clock" on virtual domain controller - cannot change to NTP server

The domain controller (Server 2012R2) is hosted on Hyper-V (Server 2012R2). It is a PDC.
- firewall disabled
- cleaned up w32tm:
net stop w32time
w32tm /unregister
w32tm /register
net start w32time
- applied ifixit from http://support.microsoft.com/kb/816042 to enable external ntp server de.pool.ntp.org
- disabled
VMICTimeProvider in registry
(HKLM\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\VMICTimeProvider\Enabled = 0)
I can manually query the ntp server de.pool.ntp.org:
w32tm /stripchart /computer:de.pool.ntp.org /samples:5 /dataonly
de.pool.ntp.org wird verfolgt [131.188.3.221:123].
5 Proben werden gesammelt.
Es ist 24.04.2014 10:07:36.
10:07:36, +00.0115379s
10:07:38, -00.0025048s
10:07:40, -00.0008595s
10:07:42, -00.0010477s
10:07:44, -00.0014516s
But still, w32tm does NOT query the ntp server:
PS C:\Windows\system32> w32tm /query /source
Local CMOS clock
rosch

Hi rosch,
Based on your description, please check if disable the "Time synchronization" Integration service. Please refer
to the following operation.
In Hyper-V Manager, right click the DC and select “Settings…”.
In the left panel of Settings, navigate to Integration Services and click it.
Then in the right panel, please uncheck Time synchronization.
By the way, please check if can connect to the time server and UDP port was opened for NTP.
If any update, please feel free to let me know.
Hope this helps.
Best regards,
Justin Gu

ASA5500 using Windows 7 computer as NTP server

I have an ASA5510 connected to a computer running Windows 7 (the NTP Server) on its "inside" interface.
Using the ASDM, I have configured the ASA5510 to use the Windows 7 as its NTP server (my architecture forces me to use a local machine as an NTP server):
     -IP address: 192.0.99.1 (the ASA5510 has an IP address of 192.0.99.40)
     -Interface: inside
     -Key number: None
     -Enable NTP authentication: no.
I have other Windows computers on the "inside" interface using the NTP Server, so NTP traffic is relayed without any problem. But somehow, the ASA5510 is not able to synchronize with the NTP Server.
I see the following log entry:
     -Source IP: 192.0.99.1
     -Source Port: 123
     -Destination IP: 192.0.99.40
     -Destination port: 65535
     -Description: Teardown UDP connection 3905 for inside: 192.0.99.1/123 to identity: 192.0.99.40/65535 duration 0:02:01 bytes 96
so it seems like the ASA5510 sends a request to the NTP Server, but I am not sure whether the reply doesn't get processed correctly, or the connection stays open too long (my UDP connection timeout is the default, 2 minutes).
I had trouble getting SonicWALL NSA2400s to use Windows 7 devices as NTP servers. I had to get a firmware version where there was no MD5 authentication (which I think is OK in this case), and change a setting in the Windows registry (HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/services/W32Time/Config/AnnounceFlags: from 0xa to 0x5)
any insight is welcome.
Pedro

I have turned on all ntp debugging, and run "show ntp status" and "show ntp assoc":
CCG-SHIP-FWL(config)# show debug
debug ntp adjust enabled at level 1
debug ntp authentication enabled at level 1
debug ntp events enabled at level 1
debug ntp packets enabled at level 1
debug ntp params enabled at level 1
debug ntp select enabled at level 1
debug ntp sync enabled at level 1
debug ntp validity enabled at level 1
CCG-SHIP-FWL(config)# show ntp status
Clock is unsynchronized, stratum 16, no reference clock
nominal freq is 99.9984 Hz, actual freq is 99.9984 Hz, precision is 2**6
reference time is 00000000.00000000 (06:28:16.000 GMT Thu Feb 7 2036)
clock offset is 0.0000 msec, root delay is 0.00 msec
root dispersion is 0.00 msec, peer dispersion is 0.00 msec
CCG-SHIP-FWL(config)# show ntp assoc
      address         ref clock     st when poll reach delay offset    disp
~192.16.99.1      .LOCL.            1   380 1024 337    73.0 255671    71.0
* master (synced), # master (unsynced), + selected, - candidate, ~ configured
CCG-SHIP-FWL(config)# NTP: xmit packet to 192.16.99.1:
leap 3, mode 3, version 3, stratum 0, ppoll 1024
rtdel 0000 (0.000), rtdsp 10400 (1015.625), refid 00000000 (0.0.0.0)
ref 00000000.00000000 (06:28:16.000 GMT Thu Feb 7 2036)
org d34ac42f.4609d99d (20:21:03.273 GMT Tue May 1 2012)
rec d34a6050.3598360c (13:14:56.209 GMT Tue May 1 2012)
xmt d34a6250.22e73ba2 (13:23:28.136 GMT Tue May 1 2012)
NTP: rcv packet from 192.16.99.1 to OWN_FWL_LAN_PORT on inside:
leap 0, mode 4, version 3, stratum 1, ppoll 1024
rtdel 0000 (0.000), rtdsp a0bf4 (10046.692), refid 4c4f434c (76.79.67.76)
ref d34abbb0.bb426e39 (19:44:48.731 GMT Tue May 1 2012)
org d34a6250.22e73ba2 (13:23:28.136 GMT Tue May 1 2012)
rec d34ac62f.3977adb6 (20:29:35.224 GMT Tue May 1 2012)
xmt d34ac62f.3977adb6 (20:29:35.224 GMT Tue May 1 2012)
inp d34a6250.233258a0 (13:23:28.137 GMT Tue May 1 2012)
NTP: nlist 0, allow 0, found 0, low 0.000000, high 0.000000
NTP: no select intersection
NTP: synchronization lost

Anyone got NTP working with a Windows 2008 NTP server?

Hello,
I'm trying to sync the time on our routers and swithces with a Windows 2008R2 server, but it doesn't work. Has anyone managed to do this:
Config:
ntp master
ntp update-calendar
ntp server 192.168.2.164
sh ntp associations
address         ref clock         st   when   poll   reach    delay    offset     disp
*~127.127.1.1     .LOCL.         7     11     16      377      0.000   0.000      0.225
~192.168.2.164 .INIT.          16      -      1024     0       0.000    0.000    15937.
Windows 2008R2 server
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\NtpServer]"
"Enabled"=dword:00000001
restart server
w32tm /config /manualpeerlist:uk.pool.ntp.org,0x8 /syncfromflags:MANUAL
net stop w32time
net start w32time
Doesnt work
Woudl Linux like Ubuntu be better?
Thanks

I got this working from a cisco 2911 router to Windows 7 computer.
As per many articles, you are missing:-
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Config]"
"AnnounceFlags"=dword:00000005
But the one that allows Cisco kit to Sync is:-
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Config]"
"LocalClockDispersion"=dword:00000000
This article http://www.cisco.com/c/en/us/support/docs/ip/network-time-protocol-ntp/108076-ntp-troubleshoot.html talks about having a root-dispersion higher than 1000ms (1 second) causing Cisco IOS-NTP to unsynchronizes itself.
This article http://htluo.blogspot.co.uk/2009/02/ntp-network-time-protocol.html#comment-form was the only one I found that added to the normal enable ntp server registry keys information, stating to change ‘HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Config\LocalClockDispersion’ from 10 to 0
There was also articles that said that the Windows NTP implementation was version 3, and therefore you had to append ‘version 3’ to the routers ‘ntp server x.x.x.x’ command. This may be perhaps true for earlier windows versions?, but was NOT required for Windows 7.

3750 stack won't sync with NTP server

Any help greatly appreciated with this one - I can't for the life of me figure out what's going wrong here.
I'm working on a 3750 stack in Singapore (UTC +8) and I'm trying to get it to sync its clock with 3.sg.pool.ntp.org.
This is the weird part - "sh ntp associations" shows that it is syncing:
address         ref clock       st   when   poll reach delay offset   disp
*~199.195.193.200 203.117.180.36   2     52     64   377 80.936 -13895. 1.771
* sys.peer, # selected, + candidate, - outlyer, x falseticker, ~ configured
And "sh ntp associations de" shows that it's happy:
199.195.193.200 configured, our_master, sane, valid, stratum 2
ref ID 203.117.180.36, time D691F63E.C4B691CD (17:26:22.768 UTC Tue Jan 28 2014)
our mode client, peer mode server, our poll intvl 64, peer poll intvl 64
root delay 196.39 msec, root disp 592.71, reach 377, sync dist 944.69
delay 80.93 msec, offset -13895.2686 msec, dispersion 2.65
precision 2**20, version 4
org time D691FA8F.5FF29003 (17:44:47.374 UTC Tue Jan 28 2014)
rec time D691FA9D.5041E9C7 (17:45:01.313 UTC Tue Jan 28 2014)
xmt time D691FA9D.3B3524C8 (17:45:01.231 UTC Tue Jan 28 2014)
filtdelay =    82.20   80.93   82.17   81.49 155.78   81.08   84.67   82.09
filtoffset = -13897. -13895. -13899. -13900. -13901. -13872. -13876. -13876.
filterror =     0.00    0.99    1.98    2.94    3.94    4.92    5.87    6.81
minpoll = 6, maxpoll = 10
But the clock is stubbornly remaining unsynchronised ("sh ntp st"):
Clock is unsynchronized, stratum 16, reference is 199.195.193.20
nominal freq is 119.2092 Hz, actual freq is 119.2092 Hz, precision is 2**17
reference time is 00000000.00000000 (08:00:00.000 UTC Mon Jan 1 1900)
clock offset is -13895.2686 msec, root delay is 0.00 msec
root dispersion is 14.62 msec, peer dispersion is 3.26 msec
loopfilter state is 'CTRL' (Normal Controlled Loop), drift is 0.000000000 s/s
system poll interval is 64, never updated.
NTP-relevant config is as follows (no ACLs, outbound UDP 123 allowed on perimeter firewall):
clock timezone UTC 8 0
ntp server 3.sg.pool.ntp.org
I have configured a pair of stacks in Hong Kong for NTP (though that was a couple of months ago and I recall that those were a pain at the time as well) and those are working fine.

Much to my annoyance, the switch stack is now synchronised. No configuration changes were made in the interim; it just looks like it needed a long time (well over an hour in this case) to start syncing properly.

NTP Server Modification

Hi There,
I am having on DC & ADC both are virtual machines and configured on HYPER -V environment.
Now during the time of implementation DC is made as the NTP server for the entire domain.
Now i need to check the configuration of NTP Server and needs to change the time setting in that.
Regards, Ravi Kumar

Hi,
In order to query or change windows time settings we can use w32tm tool.
Configure the Windows Time service on the PDC emulator in the Forest Root Domain
http://technet.microsoft.com/en-us/library/cc786897(v=ws.10).aspx
Hope this helps.

NTP Server Edition in Configuration

Hi,
I need to have this information that if i do some correction in the existing NTP Server that is my DC (only) so is there any impact on the running application on the rest of the servers in the domain.
request for few suggestions over this.
Regards, Ravi Kumar

Hi,
Based on your description, I understand that you want to correct some NTP server configurations. Please
refer to following thread and check if can help you.
Possible
Impact changing NTP
If anything I misunderstand or any update, please don't hesiate to to let me know.
Hope this helps.
Best regards,
Justin Gu

Error: Cannot connect to NTP server or NTP server is not running - Cisco IPS

This is different scenario here:
I have two Cisco IPS 4260-k9 and both are in production now.
One of the IPSs is configured with NTP and works fines, but another one is not.
When tried to configure when the device is ON and live in production and got the following error,
Error from CLI:
" Error: Cannot connect to NTP server or NTP server is not running "
Error from IME:
" Delivery failed.
err Unaccepable Value - cannot connect to the NTP server or NTP server is not running"
I am able to reach the NTP server, also the same NTP is working fine with other devices....
Am I doing anything wrong?
Please advise

Hi,
Now the error has changed:
Session.connect: java.net.SocketTimeoutException: Read timed out
I have increased the pooling interval to 1 Hr from 1 Min. Waiting for the next pooling interval result.
Guide me if I am heading right.... or anything else needs to be done.
Regards,
Krishna Chauhan

Microsoft Windows Server 2003 as NTP server for IOS clients

I am trying to synchronize the clock in my switches using a Windows 2003 ntp server. Debugging shows that the switch receives an answer from the server, but will not accept it. Debugging shows "Failed validity tests 20" which I think means "bogus packet received".
On the server side I have changed the registry key HKLM\SYSTEM\CurrentControlSet\Services\W32Time\Config\LocalClockDispersion from the default value 10 to 0, found that tip on the web. I also adjusted the switch clock manually so that the difference was less than a minute. Did not help.
I am currently testing with a 2960G with IOS 12.2(25)SEE3
Here is the debug output: (ntp events, ntp packets, ntp validity)
May 14 16:07:25: NTP: xmit packet to <server ip address> :
May 14 16:07:25: leap 3, mode 3, version 3, stratum 0, ppoll 64
May 14 16:07:25: rtdel 0000 (0.000), rtdsp 10001 (1000.015), refid 00000000 (0.0.0.0)
May 14 16:07:25: ref 00000000.00000000 (01:00:00.000 CET Mon Jan 1 1900)
May 14 16:07:25: org CBD57216.A8000000 (16:13:42.656 CEST Wed May 14 2008)
May 14 16:07:25: rec CBD5705D.5075BD5A (16:06:21.314 CEST Wed May 14 2008)
May 14 16:07:25: xmt CBD5709D.515717A2 (16:07:25.317 CEST Wed May 14 2008)
May 14 16:07:25: NTP: rcv packet from <server ip address> to <switch ip address> on Vlan5:
May 14 16:07:25: leap 3, mode 4, version 3, stratum 0, ppoll 64
May 14 16:07:25: rtdel 0000 (0.000), rtdsp 10400 (1015.625), refid 00000000 (0.0.0.0)
May 14 16:07:25: ref CBBA0238.40395810 (20:45:12.250 CEST Wed Apr 23 2008)
May 14 16:07:25: org CBD5709D.515717A2 (16:07:25.317 CEST Wed May 14 2008)
May 14 16:07:25: rec CBD57256.AC000000 (16:14:46.671 CEST Wed May 14 2008)
May 14 16:07:25: xmt CBD57256.AC000000 (16:14:46.671 CEST Wed May 14 2008)
May 14 16:07:25: inp CBD5709D.56C08EFA (16:07:25.338 CEST Wed May 14 2008)
May 14 16:07:25: NTP: packet from <server ip address> failed validity tests 20
May 14 16:07:25: Peer/Server Clock unsynchronized

Nothing much in the switch, just
clock timezone CET 1
clock summer-time CEST recurring last Sun Mar 2:00 last Sun Oct 3:00
ntp server x.x.x.x
At the Windows 2003 server I changed two registry keys, but I think the first one was not needed.
HKLM\SYSTEM\CurrentControlSet\Services\W32Time\Config\LocalClockDispersion changed from 10 to 0
w32tm /config /update
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Parameters\Type="NT5DS"
Restarted Windows time service
Note that NT5DS means that this server will get its time from another domain controller in my domain.
The point is to make sure that time really is synchronized at the server. If you want the server to sync from an external source, consider changing the source to something other than time.windows.com
net time /querysntp and net time /setsntp
Vigleik

W32time NTP server Windows Server 2012 o 2008 R2

Hello All
I have a one problem, I have configured of NTP Server of this way, but when restarted server the time not changed, The server not to synchronized with NTP server.
1. Run Regedit
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\W32Time\Parameters\Type
Change from NT5DS to NTP
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\W32Time\Config\AnnounceFlags
Edit the DWORD Value to 5. notice that the default value is “a”
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\W32Time\TimeProvides\NTPServer\Enabled
Change the value from 0 to 1
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\W32Time\Parameters\NtpServer
Change from time.windows.com,0x1 to the IP address of NTP time Server. For example, 1.pool.ntp.org,0×1
Net Stop W32time /Net Start W32time
Some have idea about of this problem?
Hugo Monge

Hi Hugo,
>>W32time NTP server Windows Server 2012 o 2008 R2
Before going further, what does this mean?
Regarding how to configure an authoritative time server in Windows Server, the following articles can be referred to as reference.
How to configure an authoritative time server in Windows Server
http://support.microsoft.com/kb/816042
Configuring a time source for the forest
https://technet.microsoft.com/en-us/library/cc784800(v=ws.10).aspx
Best regards,
Frank Shen
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact [email protected]

My solution for AEBS locking up (NTP server not reachable)

I'll prefix this by saying that the issue that I found is pretty rare, but easy to fix.
I had a problem with my Airport Express that would cause all sorts of weird problems. After a couple days, either it wouldn't print, not allow clients to associate, not accept the correct password in the Airport Admin Utility, or not show up in the Airport Admin utility.
It turns out that I had enabled using a NTP server, but the NTP server wasn't reachable. In my network setup, the airports are in part of the subnet that's firewalled from the internet. The fix was for me to change the NTP server to an internal machine, but turning off NTP would have worked just the same.
NTP seems to only be used for logging, so turning it off shouldn't affect network performance.
I haven't had to reset either base stations since.

Here you go!
Use the terminal and be a root user and follow the steps bellow:
cd /etc
more ntp.conf
Then include this two lines:
server 127.127.1.1 prefer
fudge 127.127.1.1 stratum 3 refid NIST
After that save and exit. Then checked your ntp using the server admin tool and thats done. Be warn don't mend anything with the system preferences date and time.

How to sync clock of Cisco ASA 5505 from NTP Server on internet

Hi there!
i've setup a site, with cisco ASA 5505. It has public ip also.
i want to sync the clock of firewall from on ntp server on internet, or with internal domain controller that is inside LAN.
The firewall has public IP also.
how can i do this?
Regards!

Hello Lasandro,
This should do it!
http://www.cisco.com/en/US/docs/security/asa/asa84/configuration/guide/basic_hostname_pw.html#wp1236530
Looking for some Networking Assistance?
Contact me directly at [email protected]
I will fix your problem ASAP.
Cheers,
Julio Carvajal Segura
http://laguiadelnetworking.com

Changes in server side java file not reflecting in Client side java code?

Hi friends,
iam using eclipse IDE, JBoss server, SWING GUI and Oracle DB
( looks like : SWINGGUI (Client) <--> EJB's (serverside) <---oracle )
my problem is , when i make change in server side bean file, that changes are not reflecting in GUI programs.
(for ex: iam adding settr and getter for a field and using that in GUI program. but its not identifying that setter or getter).
please tell me what should i do for every change done to server side program, that should reflect / available to GUI?

my problem is , when i make change in server side bean file, that changes are not reflecting in GUI programs.
(for ex: iam adding settr and getter for a field and using that in GUI program. but its not identifying that setter or getter).what do you mean it's not "identifying" the methods?
you have to call those methods you know
are you getting NoSuchMethodError?
please tell me what should i do for every change done to server side program, that should reflect / available to GUI?you haven't posted any code or error messages that might help us debug

Elm. Change ntp server.

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