ND Clocks User Manual - Rev 2.0.1 Sep-08
8
Symmetricom
®
, Inc.
that your network system components are capable of, and configured properly for IGMP before utilizing
the
multicast addressing feature. Consult you IT/network administrator for assistance in utilizing the
multicast addressing feature.]
[Note: You will need to check with your firewall vendor to determine how to enable multicast traffic
through a firewall. In addition, you may want to read RFC 2588: IP Multicast and Firewalls. ]
Anycast
The network clock does not currently provide anycast capability.
Configuration
The network clock ships from the factory with most software configuration offset options in the OFF
setting, in order to display UTC time.
This factory default configuration is defined as:
o DHCP/BootP provided network configuration - Enabled
o DHCP provided NTP server address entry - Enabled
o Query (Unicast) NTP client -Enabled
o Time zone offset - Disabled
o Automatic Daylight Saving Time Adjustment - Disabled
o Telnet access – Enabled
o Display dashes when not synchronized to an NTP time server (after 24 hrs – default) - Enabled
Reset Factory-Default Configuration
In some situations (such as a lost password) it may be necessary to return the network clock to its
factory default configuration. A reset configuration button labeled “RESET” is located on the
electronics cover on the rear of the network clock chassis, to perform this function.
To reset configuration to factory default –
1. Depress and hold the reset configuration button on the rear of the clock.
2. Remove power from the device, while continuing to hold the reset button down.
3. Apply power to clock and continue holding the reset button down for five seconds.
4. The network clock device configuration will now be reset, including the password, and the
unit will need to be reconfigured.
Default Password
The factory-default password for the network clock is: “public”
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