Vivotek NETWORK CAMERA IZ7151 - Manual (Page 35)

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address and allows multiple clients to acquire the stream by requesting a copy from the Multicast
group address�
The five ports can be changed between 1025 and 65535� The multicast RTP port must be an even
number and the multicast RTCP port is multicast RTP port number plus one, and thus always be
odd� When the multicast RTP port changes, the multicast RTCP port will change accordingly�
If the multicast RTP video ports are incorrectly assigned, the following warning message is
displayed:
Multicast TTL [1~255] : The multicast TTL (Time to live) is the value that tells the router the range a
packet can be forwarded�
NOTE :
► To utilize the RTSP streaming authentication, make sure that your have set a password for
the Network Camera first; see Security on page  for details.