Why can a camera be accessed on a LAN, but not via its WAN address?
This is one of the most frequently asked questions by IP Camera users. This is most likely due to insufficient port configuration.  Using RTSP over HTTP usually requires only forwarding one port - the port used by both ONVIF services and web UI.  Using TCP/UDP as the transport protocol for video streaming often requires more than one port to be forwarded for ONVIF devices  - one port for ONVIF, and another  for streaming.  

These diagrams would help users to set up port forwarding for the aforementioned two scenarios.
#onvif #ipcamera #networkcamera #portforwarding #ipcentcom #onvifer  
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