User Manual of Network Video Recorder 
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3.  Leave the Enable UPnP checkbox unchecked. 
4.  Click    to activate the External Port Settings dialog box. Configure the external port No. for server port, 
http port, RTSP port and https port respectively. 
 
The value of the RTSP port No. should be 554 or between 1024 and 65535, while the value of the other ports 
should be between 1 and 65535 and the value must be different from each other. If multiple devices are configured 
for the UPnP™ settings under the same router, the value of the port No. for each device should be unique. 
 
Figure 9. 27 External Port Settings Dialog Box 
 
5.  Click OK to save the setting for the current port and return to the upper-level menu. 
6.  Click Apply button to save the settings. 
7.  Enter the virtual server setting page of router; fill in the blank of Internal Source Port with the internal port 
value, the blank of External Source Port with the external port value, and other required contents. 
 
Each item should be corresponding with the device port, including server port, http port, RTSP port and https port. 
 
Figure 9. 28 Setting Virtual Server Item 
 
 
The  above  virtual  server  setting  interface  is  for  reference  only,  it  may  be  different  due  to  different  router 
manufactures. Please contact the manufacture of router if you have any problems with setting virtual server. 
 
9.3  Checking Network Traffic 
Purpose: 
You  can  check  the  network  traffic  to  obtain  real-time  information  of  NVR  such  as  linking  status,  MTU, 
sending/receiving rate, etc. 
Steps: 
1.  Enter the Network Traffic interface. 
Menu > Maintenance > Net Detect