Monday, January 5, 2009

NTP Broadcast Setup

Most of the scenarios i have encountered with NTP involve setting up NTP relationships with the 'ntp server' or 'ntp peer' commands. In this post i am not going to detail this setup.

An interesting scenario i came across was when the lab requirement was to establish NTP in an environment but WITHOUT using the 'ntp peer' or 'ntp server' commands.

To enable this requires use of NTP in a broadcast mode. The config for this is straightforward (as always if you know the answer:-})

config-if#ntp broadcast client

config-if#ntp broadcast

Thats it!

As with standard udp NTP the setup can be verified via 'show ntp associations'.

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