how to receive data from a multicast UDP socket in Python 3.10
I've been working on this all day and I need help solving I'm trying to set up a multicast UDP server in Python 3.10 using the `socket` library, but I'm working with issues receiving data from clients... I'm using the multicast address `224.0.0.1` and port `5004`, and I can successfully send messages from the clients, but the server seems to receive nothing. Here’s a snippet of my server code: ```python import socket import struct MULTICAST_GROUP = '224.0.0.1' MULTICAST_PORT = 5004 # Create the socket sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) sock.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 2) # Bind to the server address and port sock.bind(('', MULTICAST_PORT)) # Tell the operating system to add the socket to the multicast group # on all interfaces. group = socket.inet_aton(MULTICAST_GROUP) mreq = struct.pack('4sL', group, socket.INADDR_ANY) sock.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq) while True: data, address = sock.recvfrom(1024) print(f'Received message: {data} from {address}') ``` I verified that the clients are actually sending data, as I can see it on their side, but the server doesn’t print anything at all, which suggests that it’s not receiving any data. I have also checked the firewall settings on my machine to ensure that traffic on port `5004` is allowed. I tried running the server on different machines in the same network, but still no luck. What's puzzling me is that I see no behavior messages; the server just sits idle. Is there something I'm missing in the setup, or is there a known scenario with multicast sockets in Python 3.10? Any insights would be greatly appreciated! I'm developing on Windows 10 with Python. Is there a simpler solution I'm overlooking? I'm on CentOS using the latest version of Python. I'm open to any suggestions.