Windows Python多播上的错误10049

Question

这是一些用于设置多播接收器的Python代码.它在mac和linux上运行良好.

import socket, struct

ADDR='239.239.250.1'
PORT=8001

sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind((ADDR, PORT))
mreq = struct.pack("4sl", socket.inet_aton(ADDR), socket.INADDR_ANY)
sock.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq)

但在Windows上运行时在绑定上收到错误10049.

Z:\winx>c:\Python27\python.exe q2.py
Traceback (most recent call last):
  File "q2.py", line 11, in <module>
    sock.bind((ADDR,PORT))
  File "c:\Python27\lib\socket.py", line 224, in meth
    return getattr(self._sock,name)(*args)
socket.error: [Errno 10049] The requested address is not valid in its context

Windows多播是否存在已知问题？如果没有,我可以采取哪些步骤进行诊断？

Answer 1

我认为您的地址错误，假设您的意思是众所周知的内容，例如站点本地多播。

根据http://www.cisco.com/c/dam/en/us/support/docs/ip/ip-multicast/ipmlt_wp.pdf，此地址属于[可能未使用]站点本地扩展。

也许 Windows 会为您验证该地址？