NTP (Network Time Protocol)
by Rene Molenaar 6 Comments
Scenario:
You are the owner of a Swiss watch factory. Time is everything to you and the same applies to your
network. You want to make sure that your complete network is synchronized and up-to-date. Now get
going since time is money!
Goal:
All IP addresses have been preconfigured for you.
EIGRP has been configured for full connectivity.
Configure router Planck and Atomic to be NTP Masters, use stratum 10.
Make sure router Planck and Atomic synchronize with each other.
Router Julian has to check router Planck and Atomic for NTP updates, it has to prefer router
Atomic.
Configure router Julian so it broadcasts NTP packets on its FastEthernet 1/0 interface.
Configure router Century so it configures itself using the NTP broadcast packets from router
Julian.
Configure router Planck to send NTP packets to multicast address 239.5.5.5.
Configure router Millenium to configure itself using the NTP multicast packets.
IOS:
c3640-jk9s-mz.124-16.bin
Topology: