Set Ip Configuration; Set Ntp Server Parameters; Set Ntp Unicast,Multicast,Broadcast Mode; Set Ntp Client Parameters - Symmetricom ND-SERIES User Manual

Set IP Configuration

To set the IP Configuration, select this menu option. NOTE: If you select this option, you will be
disconnected from the session upon completion, whether you actually change any entries or not.
You have the choice of using DHCP for automatic IP Configuration or entering the data in these screens
for Static IP addressing. By factory default, the clock is set to DHCP address mode.
If you select DHCP, no other questions will be displayed, you will be disconnected from the session, and
you will not be able to Telnet to this clock until you learn the DHCP-provided IP address. The
WinDiscovery network device management tool can be used to determine the IP address of the clock.
To manually enter the static address IP information, enter 'N' for the DHCP (or Enter for the default),
and enter the IP, Netmask, Gateway, Primary DNS and Secondary DNS server.

Set NTP Server Parameters

The network clocks support a Primary and a Secondary NTP source in static IP addressing mode. Select
this option to setup or change the NTP reference sources. Enter the name or the IP address for the NTP
reference server. Enter the server port for each NTP reference source (normally 123). Note that in
DHCP addressing mode, the DHCP server will provide this information.

Set NTP Unicast,Multicast,Broadcast Mode

The ND clocks are set by default to unicast mode [query] for NTP on a regularly scheduled basis,
factory set to 10-minute intervals. To set the clock to receive broadcasts, set the NTP broadcast option
to 'yes'. To set the clock to receive multicast messages, set the NTP multicast option to 'yes'. Enter the
broadcast/multicast port (normally 123).
[Note: If the clock is set to receive broadcasts or multicasts, the clock will not query.]
To return the unit to unicast [query] mode reply 'no' for broadcast and multicast options.

Set NTP Client Parameters

The ND clocks are set to query for NTP on a regularly scheduled basis, factory set to 10-minute
intervals. To adjust the settings for query interval and additional broadcast /multicast NTP client
parameters select this option. Note, these settings are considered advanced settings and under most
typical operating circumstances it is not necessary nor is it suggested to change the advanced
settings options. Please refer to the WinDiscovery "Advanced Settings" section for the default
values.

Configure Telnet Interface

Select this option to turn off the Telnet access. If Telnet is allowed, define the Telnet port (normally
23). If turned off, the Telnet session will be ended and the user must use WinDiscovery, the RS232
access, or the Reset button to regain access by Telnet.
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ND Clocks User Manual - Rev 2.0.1 Sep-08 26 Symmetricom , Inc.