HIKVISION DS-77 NI-SP Series Quick Start Manual page 18

After assigning the IP information, click on the "MORE SETTINGS" tab
The "MORE SETTINGS" tab contains the ports that need to be forwarded for remote access
.
The SERVER PORT is responsible for the MOBILE APP and CLIENT SOFTWARE log-in.
The HTTP PORT is responsible for WEB BROWSER log-in.
The RTSP PORT is responsible for VIDEO/AUDIO STREAMING.
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