python - IPv6 中的 RAW 套接字 UDP 多播

Question

我为我的 UDP 嗅探器从多播中接收数据，但仅在 IPv4 中。我的代码看起来像这样，

try:
    s = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_UDP)
except socket.error as msg:
    print('Socket could not be created. Error Code : ' + str(msg[0]) + ' Message ' + msg[1])
    sys.exit()

mreq = struct.pack("4sl", socket.inet_aton('239.255.11.3'), socket.INADDR_ANY)
# receive a packet

s.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq)

packet = s.recvfrom(65000)

但是我只在设置 IPv4 地址时才接收数据，而且我还想从 IPv6 多播地址接收数据。我将非常感谢任何想法，并对我的英语感到抱歉。 ;-)

Answer 1

此示例在 Windows 中的 FF02::158 (IoTivity UDP CoAP) 上获取多播

import socket
import struct

address = ('', 5683)
interface_index = 0  # default

sock = socket.socket(family=socket.AF_INET6, type=socket.SOCK_DGRAM)
sock.bind(address)
for group in ['ff02::158']:  # multiple addresses can be specified
    sock.setsockopt(
        41,  # socket.IPPROTO_IPV6 = 41 - not found in windows 10, bug python
        socket.IPV6_JOIN_GROUP,
        struct.pack(
            '16si',
            socket.inet_pton(socket.AF_INET6, group),
            interface_index
        )
    )

while True:
    data, sender = sock.recvfrom(1500)
    while data[-1:] == '\0': data = data[:-1]  
    print(str(sender) + '  ' + repr(data))

更完整的答案 https://stackoverflow.com/a/66943594/8625835