Dahua DHI-NVR5208-4KS2 User Manual page 295

For details, see Introduction of P2P Operations.
Connect the NVR device to the Internet, otherwise P2P can not run properly.
Step 1 Select Main Menu > NETWORK > P2P.
The P2P interface is displayed. See Figure 4-213.
Step 2 Enable the P2P function.
After the P2P function is enabled and connected to the Internet, the system will collects
your information for remote access, and the information includes but not limited to email
address, MAC address, and device serial number.
You can start adding the device.
 Cell Phone Client: Use your mobile phone to scan the QR code to add the device
into the Cell Phone Client, and then you can start accessing the Device.
Platform: Obtain the Device SN by scanning the QR code. Go to the P2P

management platform and add the Device SN into the platform. Then you can
Figure 4-213
Local Basic Operation 284