Cant get an IP address

public static void WaitForIPAddress() { byte[] MAC = { 0x5C, 0x86, 0x4A, 0x00, 0xF2, 0x15 }; NetworkInterface ni; NetworkInterface.GetAllNetworkInterfaces()[0].EnableDhcp(); NetworkInterface.GetAllNetworkInterfaces()[0].PhysicalAddress = MAC; while (true) { ni = NetworkInterface.GetAllNetworkInterfaces()[0]; if (ni.IPAddress != "0.0.0.0") break; Debug.Print("Waiting for an IP Address..."); Thread.Sleep(1000); } } }

Hi Terrence,

Trying setting the device MAC address using the MFDeploy tool so you don't have to hard code it in your app.

Here is some code I use for showing network config, connectivity status changes etc.

Bryn

blog.devmobile.co.nz

using System;
using System.Net;
using System.Threading;
using Microsoft.SPOT;
using Microsoft.SPOT.Net.NetworkInformation;


public class Program
{
   public static void Main()
   {
      NetworkInterface networkInterface = NetworkInterface.GetAllNetworkInterfaces()[0];

      // Comment in/out as required or us MF Deploy
      networkInterface.EnableDhcp();
      networkInterface.EnableDynamicDns();

      NetworkChange.NetworkAvailabilityChanged += NetworkChange_NetworkAvailabilityChanged;
      NetworkChange.NetworkAddressChanged += NetworkChange_NetworkAddressChanged;

      // Display network config for debugging
      DisplayNetworkInformation();

      while (NetworkInterface.GetAllNetworkInterfaces()[0].IPAddress == IPAddress.Any.ToString())
      {
         Debug.Print("Waiting for an IP Address...");
         Thread.Sleep(1000);
      }

      Thread.Sleep(Timeout.Infinite);
   }


   static void NetworkChange_NetworkAvailabilityChanged(object sender, NetworkAvailabilityEventArgs e)
   {
      Debug.Print("NetworkChange_NetworkAvailabilityChanged " + e.IsAvailable.ToString());
   }


   static void NetworkChange_NetworkAddressChanged(object sender, EventArgs e)
   {
      Debug.Print("NetworkChange_NetworkAddressChanged");
      DisplayNetworkInformation();
   }



   public static void DisplayNetworkInformation()
   {
      NetworkInterface networkInterface = NetworkInterface.GetAllNetworkInterfaces()[0];

      // Display network config for debugging
      Debug.Print("Network configuration");
      Debug.Print(" Network interface type: " + networkInterface.NetworkInterfaceType.ToString());
      Debug.Print(" MAC Address: " + BytesToHexString(networkInterface.PhysicalAddress));
      Debug.Print(" DHCP enabled: " + networkInterface.IsDhcpEnabled.ToString());
      Debug.Print(" Dynamic DNS enabled: " + networkInterface.IsDynamicDnsEnabled.ToString());
      Debug.Print(" IP Address: " + networkInterface.IPAddress);
      Debug.Print(" Subnet Mask: " + networkInterface.SubnetMask);
      Debug.Print(" Gateway: " + networkInterface.GatewayAddress);
   }


   public static string BytesToHexString(byte[] bytes)
   {
      string hexString = string.Empty;

      // Create a character array for hexidecimal conversion.
      const string hexChars = "0123456789ABCDEF";

      // Loop through the bytes.
      for (byte b = 0; b < bytes.Length; b++)
      {
         if (b > 0)
            hexString += "-";

         // Grab the top 4 bits and append the hex equivalent to the return string.        
         hexString += hexChars[bytes[b] >> 4];

         // Mask off the upper 4 bits to get the rest of it.
         hexString += hexChars[bytes[b] & 0x0F];
      }

      return hexString;
   }
}