<!-- include start from dhcp/ntp-server.xml.i -->
                  <leafNode name="ntp-server">
                    <properties>
                      <help>IP address of NTP server</help>
                      <valueHelp>
                        <format>ipv4</format>
                        <description>NTP server IPv4 address</description>
                      </valueHelp>
                      <constraint>
                        <validator name="ipv4-address"/>
                      </constraint>
                      <multi/>
                    </properties>
                  </leafNode>
<!-- include end -->