NTP100 – Rev 2.2.0 Oct-12
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Selecting NTP Unicast / Query mode
Set NTP Broadcast/Multicast Options
To configure unicast/broadcast/multicast transmission options, select option ‘B’ from the main menu. This allows the
selection /enabling of the mode(s) the NTP server will operate in, along with the parameters including the NTP server port
and transmission frequency).
Server port
- The default, well known port for NTP service is 123. This can be changed as desired. Note that some
NTP/SNTP clients will expect NTP servers to operate on port 123 and cannot be configured to utilize alternate ports.
Selecting Unicast Mode for NTP
- By default, the NTP100 will operate only in Unicast /Query mode using server port 123
This mode is selected exclusively when neither the provide NTP broadcast nor the provide NTP multicast modes are selected.
Provide NTP broadcasts
–. The NTP100 can be set up to provide NTP broadcasts by selecting the “Provide NTP using
broadcast address [255,255,255,255]” checkbox. When enabled, the broadcast on/to port may be specified as well as the
frequency that broadcasts will be issued. This can be changed as desired. The NTP100 provides NTP broadcasts using the
broadcast address [255,255,255,255]
Note: While providing NTP broadcasts, the NTP100 device can also continue to be queried.
Note: Some NTP/SNTP clients will expect NTP servers to operate on port 123 and cannot be configured to utilize alternate
ports.
Selecting NTP Broadcast mode
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