Installation guide
53
 RTP 
Create a setting for sending and receiving audio or video on a real-time basis. These settings are the 
IP address, port number, and Time-To-Live value (TTL) to use for the media stream(s) in multicast 
H.264 format. Only certain IP addresses and port numbers should be used for multicast streams.  
• Port Range 
  -  Start/End port: Enter a value between 30000 and 39920. 
• Multicast 
  This function is for sending video to multicast group. 
  -  Enable Multicast: Check the checkbox to enable multicast operation.  
  -  Multicast destination IP: Enter an IP between 224.0.0.0 and 239.255.255.255.  
 -  RTP port: Enter a value between 1024 and 65530. 
 RTP TTL: Enter a value between 1 and 255. If a network status is smooth, enter a lower 
    value. On the other hand, if a network status is poor, enter a higher value. When there are 
    many network cameras or users, a higher value may cause a heavy load to the network.  
    Consult with a network manager for detailed information. 
 - Always enable multicast: Check the box to start multicast streaming without opening an 
RTSP session. 
When the settings are complete, click Save, or click Reset to revert to previously saved settings. 
