接收对UDP广播(C#)的答复

| 我正在尝试发送udp广播,并使用c#接收答案。虽然发送广播的效果很好,但是我在C#中没有收到任何答案。但是当我看一下wireshark时,我可以看到已经发送了一个答案: 从192.168.0.141发送到192.168.0.255 从192.168.0.105发送到255.255.255.255(这就是答案) Wireshark日志:
1   0.000000    192.168.0.141   192.168.0.255   UDP Source port: 55487  Destination port: 17784
2   0.000851    192.168.0.105   255.255.255.255 UDP Source port: 17784  Destination port: 55487
那就是我的C#代码:
    private static byte[] SendBuffer = new byte[] { 1, 2, 3 };

    public static void SendAndReceiveBroadcast( byte[] data, IPEndPoint broadcastEndpoint )
    {

        using( Socket broadcastSocket = new Socket( AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp ) )
        {
            broadcastSocket.SetSocketOption( SocketOptionLevel.Socket, SocketOptionName.Broadcast, 1 );
            broadcastSocket.SendTo( data, broadcastEndpoint );
            receivePort = broadcastSocket.LocalEndPoint.ToString().Split( \':\' )[1];
            Console.WriteLine( \"Sent {0} from Port {1}\", CollectionsHelper.ItemsToString( data, \"{0:X2}\" ), broadcastSocket.LocalEndPoint.ToString() );
            broadcastSocket.Close();
        }

        using( Socket receiveSocket = new Socket( AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp ) )
        {
            IPEndPoint broadcastAddress = new IPEndPoint( IPAddress.Any, Convert.ToInt32( receivePort ) );
            UdpClient udpClient = new UdpClient();
            udpClient.Client.SetSocketOption( SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true );
            udpClient.Client.Bind( broadcastAddress );
            IPEndPoint remoteIP = new IPEndPoint( IPAddress.Any, Convert.ToInt32( receivePort ) );
            byte[] answer = udpClient.Receive( ref remoteIP );
        }
    }
调用udpClient.Receive时程序停止。有人可以帮我吗? :)     
已邀请:
         您应该使用
ReceiveFrom
Receive
表示TCP。 如果我没记错的话,广播消息不会排队。广播之前叫
BeginReceiveFrom
,之后叫
EndReceiveFrom
。     
        由于您使用相同的发送和接收过程,因此需要在发送消息之前打开接收器,并且需要使用udpClient.ReceiveAsync()并等待答案,然后才能关闭程序。     

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