how to make network work in defferent IPAddress?

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C#

C#4.0

Hello guys...

I want you to help me to do real network between two devices, actually I tried to do chat
and it was Excellent, but I couldn't do it in real IPAddress or in different IPAddress in the same class only you can use it with one IPAddress I tried to use application with VMware but No response.

the Question: how can I use it in different IPAddress (same class)?

Sorry for English

this is the code:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Threading;
using System.Net.Sockets;
using System.Net;
 
namespace ChatApplication
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
 
        private static Socket client;
        private static byte[] data = new byte[1024];
 
        private void Form1_Load(object sender, EventArgs e)
        {
            //Thread fh = new Thread(new ThreadStart(findHosts));
            //fh.IsBackground = true;
            //fh.Start();
        }
 
        private void btnListen_Click(object sender, EventArgs e)
        {
 

            listBox1.Items.Add("Listening for a client...");
            Socket newsock = new Socket
             (AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            //IPEndPoint iep = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 8080);
            IPEndPoint iep = new IPEndPoint(IPAddress.Any, 8080);
            newsock.Bind(iep);
            newsock.Listen(5);
            newsock.BeginAccept(new AsyncCallback(AcceptConn), newsock);
            Thread advertise = new Thread(new ThreadStart(srvrAdvertise));
            advertise.IsBackground = true;
            advertise.Start();
        }
 
        private void btnConnect_Click(object sender, EventArgs e)
        {
            listBox1.Items.Add("Connecting...");
            client = new Socket (AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            //string selectedhost = (string)listBox2.SelectedItem;
            //string[] hostarray = selectedhost.Split(':');
            IPEndPoint iep = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 8080);
            client.BeginConnect(iep, new AsyncCallback(Connected), client);
        }
 
        private void btnSend_Click(object sender, EventArgs e)
        {
            byte[] message = Encoding.ASCII.GetBytes(txtSend.Text);
            txtSend.Clear();
            client.BeginSend(message, 0, message.Length, 0,
                     new AsyncCallback(SendData), client);
        }
 
        void AcceptConn(IAsyncResult iar)
        {
            Socket oldserver = (Socket)iar.AsyncState;
            client = oldserver.EndAccept(iar);
            listBox1.Items.Add("Connection from: " + client.RemoteEndPoint.ToString());
            Thread receiver = new Thread(new ThreadStart(ReceiveData));
            receiver.IsBackground = true;
            receiver.Start();
        }
        void Connected(IAsyncResult iar)
        {
            try
            {
                client.EndConnect(iar);
                listBox1.Items.Add("Connected to: " + client.RemoteEndPoint.ToString());
                Thread receiver = new Thread(new ThreadStart(ReceiveData));
                receiver.IsBackground = true;
                receiver.Start();
            }
            catch (SocketException)
            {
                listBox1.Items.Add("Error connecting");
            }
        }
        void SendData(IAsyncResult iar)
        {
            Socket remote = (Socket)iar.AsyncState;
            int sent = remote.EndSend(iar);
        }
        void ReceiveData()
        {
            int recv;
            string stringData;
            while (true)
            {
                recv = client.Receive(data);
                stringData = Encoding.ASCII.GetString(data, 0, recv);
                if (stringData == "bye")
                    break;
                listBox1.Items.Add(stringData);
            }
            stringData = "bye";
            byte[] message = Encoding.ASCII.GetBytes(stringData);
            client.Send(message);
            client.Close();
            listBox1.Items.Add("Connection stopped");
            return;
        }
        void srvrAdvertise()
        {
            Socket server = new Socket(AddressFamily.InterNetwork,
                          SocketType.Dgram, ProtocolType.Udp);
            server.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, 1);
            IPEndPoint iep = new IPEndPoint(IPAddress.Broadcast, 8080);
            byte[] hostname = Encoding.ASCII.GetBytes(Dns.GetHostName());
            while (true)
            {
                server.SendTo(hostname, iep);
                Thread.Sleep(60000);
            }
        }
 
        void findHosts()
        {
            //while (true)
            //{
            //    Socket remoteHosts = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
            //    IPEndPoint iep = new IPEndPoint(IPAddress.Any, 9050);
            //    EndPoint ep = (EndPoint)iep;
            //    remoteHosts.Bind(iep);
            //    byte[] data = new byte[1024];
            //    int recv = remoteHosts.ReceiveFrom(data, ref ep);
            //    string stringData = Encoding.ASCII.GetString(data, 0, recv);
            //    string entry = stringData + ":" + ep.ToString();
            //    if (!listBox2.Items.Contains(entry))
            //        listBox2.Items.Add("" + entry);
            //    break;
            //}
        }
    }
}