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43D-Link DCS-7110 User Manual
Conguration
basic, and digest. If basic authentication is selected, the password is sent in plain
text format, but there can be potential risks of it being intercepted. If digest
authentication is selected, user credentials are encrypted using MD5 algorithm,
thus providing better protection against unauthorized access.
Access Name for Stream 1 ~ 5: This camera supports multiple streams
simultaneously. The access name is used to dierentiate the streaming source. If
you want to use an RTSP player to access the camera, you have to set the video
mode to H.264 / MPEG-4 and use the following RTSP URL command to request
transmission of the streaming data.
Multicast and Unicast Streaming Protocols
You may choose to enable multicast or unicast for your camera audio and video
streaming so that your cameras (sources) and the receivers (clients) can establish
the connection to send and receive contents.
Unicast video transmission delivers a stream through point-to-point transmission.
Multicast, on the other hand, sends a stream to the multicast group address and
allows multiple clients to acquire the stream at the same time by requesting a copy
from the multicast group address. Therefore, enabling multicast can eectively save
network bandwidth.
An IP Multicast group address is used to send and receive content. Sources use
this group address as the destination address while sending their data packets.
Receivers use this group address to inform the network that they are interested in
receiving packets sent to that group.
The ports can be changed to values between 1025 and 65535. The multicast RTP
port must be an even number, and the multicast RTCP port number is the multicast
RTP port number plus one, and thus is always odd. When the multicast RTP port
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