User Manual

UM DS-90xxHUHI-F8/N User Manual 041717NA 101
NOTE: The time synchronization interval can be set from 1 to 10080 minutes.
The default value is 60 minutes. If the DVR is connected to a public
network, use an 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 customized network, NTP
software can be used to establish an NTP server used for time
synchronization.
16.2.7. Configuring NAT
Universal Plug and Play (UPnP™) lets the device seamlessly discover the presence of other
devices on the network and establish functional network services for data sharing, communications,
etc. Use the UPnP™ function to quickly connect the device to the WAN via a router without port
mapping.
NOTE: 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.
1. Enter the Network Settings interface, Menu > Configu
ration > Network.
2. Select the NAT tab to enter the UPnP™ Settings interface.
Figure 155, UPnP™ Settings Interface
3. Check Enable UPnP checkbox to enable UPnP™.
4. Select the Mapping Type as Manual or Auto in the drop-down list.
- OPTION 1: Auto
If you select Auto, the Port Mapping items are read-only, and the external ports are set by
the router automatically.
1) Click the Apply button to save the settings.