Alinking ALC-9171, Руководство пользователя

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Basic Setting > Network > Streaming
Setting of the video streaming port (HTTP and factory default are recommended)

Basic Setting > Network > Streaming > Streaming
HTTP: Port 80 can pass through most firewalls. Video streams are transmitted through HTTP Port
(80 by default) to ensure passage through firewalls.
RTSP: Port 554 uses a fixed port (i.e. TCP) or can be defined by users to ensure reliable data
transmission. Video streams are transmitted through RTSP Port (554 by default) to avoid video
fragment or mosaics due to poor transmission quality.
RTP: Port 50000 to 60000 are UDP ports and can be defined by users. They provide the fastest but
also most unreliable transmission service. Video streams are transmitted through UDP Port
(50000~60000 by default) to ensure the fastest image transmission. However, video fragment or
mosaics may occur due to poor transmission quality.
NOTE
：
Please make reference to the chapter of Streaming for further detailed description.
Streaming port setting