当从其他计算机侦听数据时,请求的地址在其上下文中无效

您好,我正在使用TCP IP通信,使用C当我的代码从IP侦听时,它会给出错误消息,请求的地址在其上下文中无效。这是密码。

 TcpListener server = null;
        try
        {
            // Set the TcpListener on port 13000.
            Int32 port = 5555;
            IPAddress localAddr = IPAddress.Parse("10.3.0.234");

            // TcpListener server = new TcpListener(port);
            server = new TcpListener(localAddr, port);

            // Start listening for client requests.
            server.Start();

            // Buffer for reading data
            Byte[] bytes = new Byte[256];
            String data = null;

            // Enter the listening loop.
            while (true)
            {
                Console.Write("Waiting for a connection... ");

                // Perform a blocking call to accept requests.
                // You could also user server.AcceptSocket() here.
                TcpClient client = server.AcceptTcpClient();
                Console.WriteLine("Connected!");

                data = null;

                // Get a stream object for reading and writing
                NetworkStream stream = client.GetStream();

                int i;

                // Loop to receive all the data sent by the client.
                while ((i = stream.Read(bytes, 0, bytes.Length)) != 0)
                {
                    // Translate data bytes to a ASCII string.
                    data = System.Text.Encoding.ASCII.GetString(bytes, 0, i);
                    Console.WriteLine("Received: {0}", data);

                    // Process the data sent by the client.
                    data = data.ToUpper();

                    byte[] msg = System.Text.Encoding.ASCII.GetBytes(data);
                    Console.WriteLine("Sent Data:" + msg);
                    // Send back a response.
                  //  stream.Write(msg, 0, msg.Length);
                 //   Console.WriteLine("Sent: {0}", data);
                }

                // Shutdown and end connection
                client.Close();
            }
        }
        catch (SocketException e)
        {
            Console.WriteLine("SocketException: {0}", e);
        }
        finally
        {
            // Stop listening for new clients.
            server.Stop();
        }

实际上,这个IP是在机器发送结果的机器中配置的。实际上,我已经看到了许多相同问题的答案,但我不知道在哪里更改IP地址。任何其他问题,任何人都可以给我答案,通过编写代码如何通过TCP IP协议与机器通信谢谢。