User guide

ADSL2+ 4-Port Ethernet USB Wireless-G Router - User Guide
4.5.11 SNTP
SNTP (Simple Network Timing Protocol) is a protocol used to synchronize the system time to
the public SNTP servers. When the SNTP feature is enabled, your router will start querying for
the time clock information from the primary SNTP server. If it fails to get a valid response
within the “timeout” period, it will try for “retry” number of times, before moving to the
Secondary SNTP server. If it fails to get a valid response from Secondary STNP server within
valid retry times, it starts querying Tertiary SNTP server. If it fails to get a valid response from
all the servers, then the program stops. When a valid response is received from one of the server,
the program sleeps for “Polling_interval” amount of minutes, before starting the whole process
again. Use the following procedures to enable SNTP.
1. Check Enable SNTP.
2. Primary SNTP Server - The IP address or the host name of the primary SNTP server.
3. Secondary SNTP Server - The IP address or the host name of the secondary SNTP server.
4. Tertiary SNTP Server - The IP address or the host name of the tertiary SNTP server.
5. Timeout - If the router failed to connect to a SNTP server within the ‘Timeout’ period, it
will retry the connection.
6. Polling Interval - Time between a successful connection with a SNTP server and a new
attempt to connect to an SNTP server.
7. Retry Count - The number of times the router will try to connect to an SNTP server before
it try to connect to the next server in line.
8. Time Zone - The time zone of the router.
9. Day Light - Check/uncheck this option to enable/disable day light saving. See Figure 1-23.
Figure 1-23 : SNTP
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