How to see recieved ICMP message

public static void ComplexLocalPing ()
      {
          // Ping's the local machine.
          Ping pingSender = new Ping ();
          IPAddress address = IPAddress.Loopback;

          // Create a buffer of 32 bytes of data to be transmitted.
          string data = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
          byte[] buffer = Encoding.ASCII.GetBytes (data);

          // Wait 10 seconds for a reply.
          int timeout = 10000;

          // Set options for transmission:
          // The data can go through 64 gateways or routers
          // before it is destroyed, and the data packet
          // cannot be fragmented.
          PingOptions options = new PingOptions (64, true);
          PingReply reply = pingSender.Send (address, timeout, buffer, options);

          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);
          }
          else
          {
              Console.WriteLine (reply.Status);
          }
      }