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FAQ - Auto provisioning: DHCP option 42 NTP server

Valid for:

N530

N610

N670

N770

N870

N870E

Embedded Integrator

Virtual Integrator

Introduction

NTP (Time) servers can be provided via:

  1. DHCP option 42
  2. Time server setting, can be changed via:
    1. Web-interface
    2. Auto-provisioning

Default setting is: 0.europe.pool.ntp.org,1.europe.pool.ntp.org,2.europe.pool.ntp.org,3.europe.pool.ntp.org

The DECT device will query (using the standard settings) the NTP servers in the following order:

  1. 3.europe.pool.ntp.org
  2. 2.europe.pool.ntp.org
  3. 1.europe.pool.ntp.org
  4. 0.europe.pool.ntp.org
  5. Via DHCP option 42 provided NTP server

The last answered NTP query is used.

From software version 2.44.0, via auto-provisioning, it is possible to enable/disable the NTP server via DHCP option 42.


Information
Auto-provisioning example

<?xml version="1.0" encoding="UTF-8"?>
<settings version="1.0" productID="e2">

<nvm>

<!-- Example how to provisioning NTP server settings -->
<param name="DmGlobal.0.NtpServer" value="0.europe.pool.ntp.org,1.europe.pool.ntp.org,2.europe.pool.ntp.org,3.europe.pool.ntp.org"/>

</nvm>

<oper name="set_uci">

<!-- Disable the option to configure the NTP server via DHCP option 42
0 = DHCP option 42 is not used
1 = DHCP option 42 is used -->
<param name="system.ntp.use_dhcp" value="0" />

</oper>

</settings>