UTILLISATION DNS

// http://www.informatick.com
using System;
using System.Net;

namespace MyIp
{
	/// <summary>
	/// Summary description for Class1.
	/// </summary>
	class Class1
	{
		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main(string[] args)
		{
			try
			{
				string hôte = Dns.GetHostName();
				IPHostEntry iphe = Dns.Resolve(hôte);
				string ip = iphe.AddressList[0].ToString();
                                                                if (ip != "127.0.0.1") {Console.WriteLine("Vous êtes connecté...");}
else {Console.WriteLine("Vous n' êtes pas connecté...");}
				Console.WriteLine("Votre Ip est: " + ip);
				Console.ReadLine();
			}
			catch(Exception e)
			{
				Console.WriteLine("Erreur!\n" + e.Message);
				Console.ReadLine();
			}

		}
	}
}