ipv6 python套接字无法正常工作

Question

我有一个简单的客户端服务器程序和服务器端工作,但由于某种原因,我无法让客户端与服务器进行交互.我能够启动服务器并使用nc -u ::1 50007并连接到它,它按预期工作.

服务器代码:

import socket
import sys



def main():
    HOST = '::1'
    PORT = 50007
    res = socket.getaddrinfo(HOST, PORT, socket.AF_UNSPEC, socket.SOCK_STREAM, 0, socket.AI_PASSIVE)
    af, socktype, proto, canonname, sa = res[0]
    try:
        s = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
        s.bind(sa)
        while True:
            data, addr = s.recvfrom(1024)
            if not data:
                break
            print 'server received %r from %r' % (data, addr)
            s.sendto(data, addr)
        s.close()
    except socket.error, msg:
        print msg



if __name__ == '__main__':
    main()

客户代码:

import socket
import sys

def main():
    HOST = '2015:cc00:bb00:aa00::2'   
    PORT = 50007              
    res = socket.getaddrinfo(HOST, PORT, socket.AF_UNSPEC, socket.SOCK_STREAM)
    af, socktype, proto, canonname, sa = res[0]
    try:
        s = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
        s.connect(sa)
        s.send('Hello, world')
        data, addr = s.recvfrom(1024)
        s.close()
        print 'Received', repr(data)
    except socket.error as e:
        print e

if __name__ == '__main__':
    main()

我能够从客户端ping服务器,但我也不能nc -u 2015:cc00:bb00:aa00::2 50007.当我运行客户端代码时,我收到连接拒绝错误.不确定为什么它没有连接,任何想法？

Answer 1

问题是您的服务器正在侦听localhost,::1但您正在尝试连接到2015:cc00:bb00:aa00::2 不同的接口.尝试HOST = "::"在服务器中进行设置,以使其绑定到所有接口.