Simple Python script to bind to a Multicast Group on specified NIC (IP address) and send a message. This can solve problem with some software when try to bind to Multicast Group on OS with multiple NIC.
Take your release from : https://github.com/zak-45/WLEDAudioSyncMCast/releases
this is a portable version, just run it according your OS
Windows example :
WLEDAudioSyncMCast-Windows.exe --ip 192.168.1.12 --group 239.0.0.1 --port 19890
options
First time you run WLEDAudioSyncMCast-{OS},
this will create folder ./WLEDAudioSyncMCast and extract all files on it.
To save some space and time,
you can then delete WLEDAudioSyncMCast-* and run the app from created folder.
the IP address need to be the one of your active LAN interface otherwise you will get an error like :
OSError: [WinError 10049] Not valid address on this context
To check Multicast on Linux :
$netstat --groups
IPv6/IPv4 Group Memberships
Interface RefCnt Group
--------------- ------ ---------------------
lo 1 all-systems.mcast.net
eth0 1 all-systems.mcast.net
on Win :
C:\>netsh interface ip show joins
Interface 1 : Loopback Pseudo-Interface 1
Étendue Références Dern Adresse
---------- ---------- ---- ---------------------------------
0 0 Oui 224.0.0.251
0 3 Oui 239.255.255.250
Interface 20 : Wi-Fi
Étendue Références Dern Adresse
---------- ---------- ---- ---------------------------------
0 0 Non 224.0.0.1
0 1 Oui 224.0.0.251
0 1 Oui 224.0.0.252
0 0 Oui 239.0.0.1
0 1 Oui 239.255.102.18
0 2 Oui 239.255.255.250
Interface 11 : Ethernet
Étendue Références Dern Adresse
---------- ---------- ---- ---------------------------------
0 0 Oui 224.0.0.1