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Appendix D
N
ETWORK
T
IME
S
ERVER
O
PTION
D.1
Configuration Requirements
Configuration of the NTS involves setting the unit’s TCP/IP networking parameters (IP
Address, Net-Mask and Gateway IP Address settings), the number of tracked satellites
required to initiate the Server function, and optionally, the IP addressing data needed
for SNMP status reporting. Although not strictly necessary, it is usual to assign a fixed IP
address to the NTS module, even in network environments operating with a DHCP
Server. This allows NTP client software on all work-stations to be permanently
programmed to poll to the fixed address of the NTP Server.
It is beyond the scope of this document to discuss TCP/IP addressing concepts in
detail. The configuration instructions below assume some familiarity with the
TCP/IP networking environment and Network Operating System utilities such as
“Ping”, “Telnet” and “Arp”.
The following TCP/IP information is required to configure the NTS properly:
(a) The fixed local network address (IP address) to be assigned to the NTS.
(b) The number of bits in the netmask that the local network assigns to hosts. The
default setting of “0” results in automatic allocation.
(c) The IP address of the gateway router (only necessary if the NTS is required to
service
clients on multiple sub-nets). The default is all null – no subnets.
(d) The IP address(es) to which SNMP status information should be sent (should be
set to null if no SNMP status reporting is required – the default setting.)
(e) The name of the SNMP community to which the NTS is to belong (should be set
to null if no SNMP status reporting is required – the default setting.)
D.2
Methods for Accessing Set-Up Mode
There are two ways to access the timeserver’s configurable options:
Access Using Configuration Software:
Connect the TCG 01 to a Windows PC using a serial cable and, using the configuration
tool, select the “Configure NTS” button in the “NTS Setup” tab of the configuration
program. This method has the advantage of being always available. There is no need to
know the network address of the unit, and there is no password protection using this
configuration method.
