OpenMetaverse.NetworkManager.GetMAC C# (CSharp) Method

        private static string GetMAC()
        {
            string mac = String.Empty;
            System.Net.NetworkInformation.NetworkInterface[] nics = System.Net.NetworkInformation.NetworkInterface.GetAllNetworkInterfaces();

            if (nics.Length > 0)
                mac = nics[0].GetPhysicalAddress().ToString().ToUpper();

            if (mac.Length < 12)
                mac = mac.PadRight(12, '0');

            return String.Format("{0}:{1}:{2}:{3}:{4}:{5}",
                mac.Substring(0, 2),
                mac.Substring(2, 2),
                mac.Substring(4, 2),
                mac.Substring(6, 2),
                mac.Substring(8, 2),
                mac.Substring(10, 2));
        }