C#如何读取IP包

Question

Socket socket = listener.Accept();
socket.Receive();

Answer 1

    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Server is running ...  ");
            IPAddress ip = new IPAddress(new byte[] { 127, 0, 0, 1 });
            TcpListener listener = new TcpListener(ip, 8500);
            listener.Start();           // 开始侦听
            Console.WriteLine("Start Listening ...");
            Console.WriteLine(@"\n\n输入\ Q\ 键退出。");
            ConsoleKey key;
            byte[] m_RecvDataBuffer = new byte[0x10000];
            Socket socketlisten = listener.AcceptSocket();
            int Count = socketlisten.Receive(m_RecvDataBuffer);//只接受一次，线程会被堵塞在此，除非有数据包进来
            byte[] receiveBuffer = new byte[Count];
            Buffer.BlockCopy(m_RecvDataBuffer, 0, receiveBuffer, 0, Count);
            if (Count > 0)
            {
                foreach (byte by in receiveBuffer)
                {
                    Console.WriteLine(by);
                }
            }
            do
            {
                key = Console.ReadKey(true).Key;            } while (key != ConsoleKey.Q);
        }
    }
测试代码Socket send = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);
if (!send.Connected)
            {
                send.Connect("127.0.0.1", 8500);
            }
            byte[] by = new byte[]{
            11,12,13};
            send.Send(by);

Answer 2

            IPAddress ip = IPAddress.Parse("127.0.0.1");
            
            TcpListener listener = new TcpListener(ip, 9999);
            listener.Start();//开始侦听
            Console.WriteLine("开始侦听");
            while(true)
            {
                TcpClient tcpclient = listener.AcceptTcpClient();
                Console.WriteLine("连接成功{0}-->{1}", tcpclient.Client.RemoteEndPoint.ToString(), tcpclient.Client.LocalEndPoint.ToString());
                NetworkStream ns = tcpclient.GetStream();
                StreamReader sread = new StreamReader(ns);
                Console.WriteLine(sread.ReadToEnd());
            }