Add sock option SO_REUSEPORT to allow udp multicast on macos

Author: Dennis-Johnson

can/interfaces/udp_multicast/bus.py

@@ -274,6 +274,7 @@ def _create_socket(self, address_family: socket.AddressFamily) -> socket.socket:
 
             # Allow multiple programs to access that address + port
             sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+            sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
 
             # set how to receive timestamps
             try: