M e r i d i a n I I U s e r M a n u a l
73
"Smarter Timing Solutions"
Chapter
Seven
Network Time Protocol (NTP)
This chapter describes how to configure the Meridian II Precision TimeBase as an NTP Server. It
also includes brief instruction for setting up NTP Clients on your Unix-like or Windows platform.
This manual is not a ‘How-To’ on installing and using NTP. Only basic approaches to NTP client
configuration for operation with Meridian II will be described. If you have never used NTP, then you
should spend some time reading the on-line documents, especially the Distribution Notes, FAQ and
Configuration subject matter, which are available at:
A simple introduction to NTP is here:
http://www.endruntechnologies.com/pdf/NTP-Intro.pdf
Configuring the
NTP Server
Configuring the Meridian II as a Stratum 1 Server
To configure your Meridian II as a Stratum 1 NTP Server you must have successfully completed
the Basic Installation procedures in Chapter 2. By default, Meridian II is configured to respond to
NTP requests from clients that may or may not be using MD5 authentication. If the clients are using
MD5 authentication, they must be configured properly with the same MD5 authentication keys as
Meridian II. If you need to modify the factory default Meridian II MD5 keys (recommended) or set
up broadcast/multicast operation, then you will need to reconfigure the NTP subsystem. You may
perform the configuration from either a
telnet
or
ssh
session, the front-panel keypad, or the local
RS-232 console.
NOTE
If you would like to configure your server for multicast operation, configure it as you would for broadcast
operation, with the exception that you must enter this specific NTP IPV4 multicast address: 224.0.1.1, or
this specific IPV6 multicast address ff05::101, when you are prompted to enter the broadcast address.
Configuring NTP Using the Front-Panel Keypad/Display
To configure NTP using the front-panel keypad go to the Main Menu display. Press the RIGHT ar-
row key until the “NTP” selection is highlighted. Press ENTER again. Press the RIGHT arrow key
to highlight “Setup” and press ENTER. From this display you can configure broadcast/multicast
mode. You can also select previously configured MD5 authentication keys from this display. How-
ever, to configure new keys you will need to run
ntpconfig
(see below).
Summary of Contents for Meridian II
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