c# โปรแกรม ping

using System;
using System.Net;
using System.Net.NetworkInformation;
using System.Text;

class Program
{
        static void Main(string[] args)
        {
            Ping pingSender = new Ping();

            String data = "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb";
            byte[] buffer = Encoding.ASCII.GetBytes(data);
            int timeout = 120;

            Console.Write("Enter IP Address:");
            String ip = Console.ReadLine();
            PingReply reply = pingSender.Send(ip, timeout, buffer);

            if (reply.Status == IPStatus.Success)
            {
                Console.WriteLine("Address:{0}", reply.Address.ToString());
                Console.WriteLine("RoundTrip time: {0}", reply.RoundtripTime);
                Console.WriteLine("Time to live: {0}", reply.Options.Ttl);
                Console.WriteLine("Don't fragment: {0}", reply.Options.DontFragment);
                Console.WriteLine("Buffer size: {0}", reply.Buffer.Length);
            }
            Console.ReadKey();
        }
}