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Webcast-Catalyst9k
New Member

NTP configs

Hi

How to update the clock for a 3745 router running IOS (tm) 3700 Software (C3745-JS-M), Version 12.3(1), RELEASE SOFTWARE (fc3).

'ntp update-calendar' command doesnot work.

Thanks

3 REPLIES
New Member

Re: NTP configs

You may want to look at this command:

ntp server x.x.x.x

or,

ntp server north-america.pool.ntp.org

might work for you. Good luck,

pw

New Member

Re: NTP configs

Find the below commands for clock sync with ntp server.

ntp clock-period 17180411

ntp access-group peer 20

ntp master

ntp server 129.7.1.66

ntp server 128.118.46.3

you can use any NTP server as required.

New Member

Re: NTP configs

Hi Thomas,

The ntp update-calendar command is to get the NTP update from a Local Time source (Hardware clock like GPS/CDMA clocks) through any of the Interfaces.

However to always have a synchronized clocktime, configure following things:-

router(config)#clock timezone GMT 0

router(config)#clock summertime BST recurring

assuming that you are in UK, you need to set the timezone and offset

secondly you neet to configure the DST and to get it updated automatically.

and also

router(config)#ntp server ntp.nasa.gov

but prior to this please make sure that you check the Policy from the NTP Server provider.

Hope that this helps.

REgards,

Wilson Samuel

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