NTP100 – Rev 2.2.0 Oct-12
14
© Masterclock
®
, Inc.
To utilize static IP addressing, de-select the checkbox for “Automatically obtain network configuration
from DHCP/BOOTP”. You must enter the IP address, Netmask, Gateway, Primary DNS, and may
enter a Secondary DNS.
[Note: The static IP address you enter must not be in use by another device on the network , this
includes IP address ranges reserved for use by the DHCP server. If a static IP address is used which
creates a duplicate IP address condition, the network clock will be re-assigned a fallback IP address of
169.254.xxx.xxx ]
169.254.xxx.xxx IP (fallback) address
DHCP is enabled by default. If DHCP is enabled and no DHCP server can be found the NTP100 will default to a
169.254.xxx.xxx address.
In addition, if an IP address conflict is determined when the Ethernet interface is initialized (either DHCP or static) the
NTP100 will default to a 169.254.xxx.xxx address.
This 169.254.xxx.xxx is a link local address range (i.e. not allowed on the internet) and is used by Microsoft when their
DHCP clients cannot find a DHCP server.
[Note: Devices which have been assigned a fallback IP address of 169.254.xxx.xxx will be displayed in
the main WinDiscovery window with RED text, indicating a problem with the configuration.]
Device Name
Each clock is programmed at the factory with a factory device name. This name includes the model
name and a “MAC address” extension.
[Hint: You can change the device name to one convenient for your site – preferably one that helps you
to later identify the exact physical location of the device. ]
Administrative Hub
[Note: the Administrative Hub configuration item is reserved for future use.]
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