1752 and 1754 SHDSL Router User’s Guide
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Configure SNTP-NTP Server
Type the NTP Server IP address in the text box of Add NTP Server IP Address, and then click
on 
.
Type the NTP Server Hostname in the text box of Add NTP Sever Hostname, and then click
on 
.
Configure SNTP Client Mode
Select SNTP Synchronization mode(s): This action enables/disables the STNP client in a particular time synchronous access mode. There are three modes to choose from, and each mode has enable and disable options:
Unicast mode:
•Enable - The mode uses a unicast server and the IP address or hostname in the SNTP server association list is used to synchronize the client time with the server. The SNTP client attempts to contact the specific server in the association in order to receive a timestamp when the sntpclient sync command is issued.
•Disable - The unicast server is removed from the association list.
Broadcast mode:
•Enable - Allows the SNTP client to accept time synchronization broadcast packets from an SNTP server located on the network, and update the local system time accordingly.
•Disable - Stops synchronization via broadcast mode.
Anycast Mode:
•Enable - The SNTP client sends time synchronized broadcast packets to the network and subsequently expects a reply from a valid timeserver. The client then uses the first reply it receives to establish a link for future sync operations in unicast mode. This server will then be added to the server association list. The client ignores any later replies from servers after the first one is received.
The enabled anycast mode takes precedence over any entries currently in the associations list when the sntpclient sync command is issued. The entry will then be substituted for any existing entry in the unicast association list.
• Disable - stops synchronization via anycast mode.
Click on 
to validate your setting after choosing the SNTP Synchronization mode.
46 | June 2005 |