Hello now it seem to work.
Jean-Pierre you are right with the Multicast address range of
224.0.0.0 - 239.255.255.255
Some reserved Ranges are :
224.0.0.1: all Multicast-Systems
224.0.0.2: all Router
224.0.0.12: all DHCP-Server/Relays
So I tried different setting as I do not have a router in my system only a switch
I used now at the end.
Conf_AddrUDP=224.0.0.1
Conf_Port=9001
Conf_LocalIP=172.24.53.211
I set the VLC Player to:
udp://@224.0.0.1:9001
With this setting it works.
The other thing I mentioned was the .255 for UDP this is excepted by any device in the subnet as Multicast locally.
So in my case a UDP to address 172.24.53.255 will be accepted by all devices. Now other information must be check if a device should respond to that UDP packet.
So we might talk also about different things.
73. Jürgen, DL8SDQ