Ddns - Panasonic KX-NTV150 User Manual

2 Software
If the RTP ports are incorrectly assigned, the following warning message will be displayed:
Multicast settings for stream 1: Click the items to display the detailed configuration information. Select the
Always multicast option to enable multicast for stream 1.
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 effectively save
Internet bandwidth.
The port numbers 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 changes, the multicast RTCP port will change accordingly.
If the multicast RTP video ports are incorrectly assigned, a warning message will be 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.
Initial TTL
0 Restricted to the same host
1 Restricted to the same sub network
32 Restricted to the same site
64 Restricted to the same region
128 Restricted to the same continent
225 Unrestricted in scope

2.9.3 DDNS

This section explains how to configure the dynamic domain name service for the KX-NTV150/KX-NTV160.
DDNS is a service that allows your KX-NTV150/KX-NTV160, especially when assigned with a dynamic IP
address, to have a fixed host and domain name.
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