D-Link DCS-930L User Manual page 45

Section 5 - Security
The Setup > Network Setup page displays the port settings for your camera. If necessary, these ports can be changed if they are already in use by
other devices (e.g. in a multiple camera environment).
Note: Both the HTTP port and RTSP port are required to be opened for the DCS-930L.
D-Link DCS-930L User Manual 45