User Manual

Digital Video Recorder User Manual
203
Figure 12-13 NTP Settings Interface
Step 3 Check the Enable NTP checkbox to enable this feature.
Step 4 Configure the following NTP settings:
 Interval: Time interval between the two synchronizing actions with NTP server. The unit is
minute.
 NTP Server: IP address of NTP server.
 NTP Port: Port of NTP server.
Step 5 Click the Apply button to save and exit the interface.
The time synchronization interval can be set from 1 to 10080 minutes, and the default value is 60
minutes. If the DVR is connected to a public network, you should use a NTP server that has a time
synchronization function, such as the server at the National Time Center (IP Address:
210.72.145.44). If the DVR is set in a more customized network, NTP software can be used to
establish a NTP server used for time synchronization.
12.2.5 Configuring NAT
Purpose
Universal Plug and Play (UPnP™) can permit the device seamlessly discover the presence of other
network devices on the network and establish functional network services for data sharing,
communications, etc. You can use the UPnP™ function to enable the fast connection of the device
to the WAN via a router without port mapping.
Before you start
If you want to enable the UPnP™ function of the device, you must enable the UPnP™ function of
the router to which your device is connected. When the network working mode of the device is set
as multi-address, the Default Route of the device should be in the same network segment as that
of the LAN IP address of the router.
Step 1 Enter the Network Settings interface.
Menu > Configuration > Network
Step 2 Select the NAT tab to enter the UPnP™ Settings interface.