绑定UDP端口并侦听连接

Question

当我尝试通过局域网ping minecraft服务器时，文档会说：

"In Singeplayer there is a function called "Open to LAN". Minecraft (in the serverlist) binds a UDP 
port and listens for connections to 224.0.2.60:4445 (Yes, that is the actual IP, no matter in what 
network you are or what your local IP Address is)"  .......  client side, bind a UDP socket and listen 
for connections. You can use a MulticastSocket for that."

我试图通过以下方式在python中实现这一点

import socket

UDP_IP = "224.0.2.60"
UDP_PORT = 4445

sock = socket.socket(socket.AF_INET, # Internet
                     socket.SOCK_DGRAM) # UDP
sock.bind((UDP_IP, UDP_PORT))

while True:
    data, addr = sock.recvfrom(1024) # buffer size is 1024 bytes
    print("received message: %s" % data)

这给了我一个错误：[WinError 10049]

请帮助：（我不知道我的代码出了什么问题。

顺便说一句，发送数据包到那个端口是有效的，而假冒的服务器会出现在minecraft应用程序上。

Answer 1

您不能绑定到这样的多播地址。它在某种程度上涉及更多。我推荐阅读这篇文章，它解释了在Python中使用多播的所有细节。