Question

不久前我创建了一个类来处理我的局域网网络程序。我最近将我的一台笔记本电脑升级到Windows 7并重新设计了Windows 7（或者至少我设置的方式）只支持IPv6，但我的桌面仍然在Windows xp时代，并且只使用IPv4。我创建的类使用UdpClient类，目前设置为仅使用IPv4 ..有没有办法修改我的代码以允许发送和接收IPv6和IPv4数据包？废弃类代码很难，我的很多程序都依赖于这个类。我想保持班级接近其原始状态，所以我不需要修改我的旧程序，只需要更新旧班级。

感谢您的帮助，最大

发送：

    using System.Net.Sockets;UdpClient tub = new UdpClient ();
    tub.Connect ( new IPEndPoint ( ToIP, ToPort ) );
    UdpState s = new UdpState ();
    s.client = tub;
    s.endpoint = new IPEndPoint ( ToIP, ToPort );

    tub.BeginSend ( data, data.Length, new AsyncCallback ( SendCallBack ),s);

    private void SendCallBack ( IAsyncResult result )
    {
        UdpClient client = (UdpClient)( (UdpState)( result.AsyncState ) ).client;
        IPEndPoint endpoint = (IPEndPoint)( (UdpState)( result.AsyncState ) ).endpoint;
        client.EndSend ( result );
    }

接收：

    UdpClient tub = new UdpClient (ReceivePort);

    UdpState s = new UdpState ();
    s.client = tub;
    s.endpoint = new IPEndPoint ( ReceiveIP, ReceivePort );
    s.callback = cb;
    tub.BeginReceive ( new AsyncCallback ( receivedPacket ), s );

    public void receivedPacket (IAsyncResult result)
    {
        UdpClient client = (UdpClient)( (UdpState)( result.AsyncState ) ).client;
        IPEndPoint endpoint = (IPEndPoint)( (UdpState)( result.AsyncState ) ).endpoint;
        Byte[] receiveBytes = client.EndReceive ( result, ref endpoint );
        Packet ThePacket = new Packet ( receiveBytes );
        client.Close();
        //Do what ever with the 'ThePacket' now
    }

Answer 1

我认为这可能会对您有所帮助：C# server that supports IPv6 and IPv4 on the same port

Answer 2

UdpClient可以通过提供DualMode套接字准备在IPv4和IPv6上接收：

socket = new Socket(AddressFamily.InterNetworkV6, SocketType.Dgram, ProtocolType.Udp);
socket.SetSocketOption(SocketOptionLevel.IPv6, SocketOptionName.IPv6Only, false);
socket.Bind(new IPEndPoint(IPAddress.Parse("127.0.0.1"), 1234));
var udpClient = new UdpClient();
udpClient.Client = socket;
... (use udpClient)

发送更容易，我们可以使用指定的目标地址（IPv4或IPv6）创建UdpClient。如果需要，可以在构造函数中提供AddressFamily。

使用UdpClient与IPv4和IPv6？

2 个答案: