So as a solution for this you can add handlers to the static NetworkAddressChanged and NetworkAvailabilityChanged events implemented by the System.Net.NetworkInformation.NetworkChange class.
Souce Code:
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.NetworkInformation;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
// Add the handlers to the NetworkChange events.
NetworkChange.NetworkAvailabilityChanged +=
NetworkAvailabilityChanged;
NetworkChange.NetworkAddressChanged +=
NetworkAddressChanged;
Console.ReadLine();
}
// Declare a method to handle NetworkAvailabilityChanged events.
private static void NetworkAvailabilityChanged(
object sender, NetworkAvailabilityEventArgs e)
{
// Report whether the network is now available or unavailable.
if (e.IsAvailable)
{
Console.WriteLine("Network Available");
}
else
{
Console.WriteLine("Network Unavailable");
}
}
// Declare a method to handle NetworkAdressChanged events.
private static void NetworkAddressChanged(object sender, EventArgs e)
{
Console.WriteLine("Current IP Addresses:");
// Iterate through the interfaces and display information.
foreach (NetworkInterface ni in
NetworkInterface.GetAllNetworkInterfaces())
{
foreach (UnicastIPAddressInformation addr
in ni.GetIPProperties().UnicastAddresses)
{
Console.WriteLine(" - {0} (lease expires {1})",
addr.Address, DateTime.Now +
new TimeSpan(0, 0, (int)addr.DhcpLeaseLifetime));
}
}
}
}
}
Download Source Code
http://www.4shared.com/file/gyfzpCB_/ConsoleApplication1.html
