C#プログラムがMACアドレスを読み出す5つの方法

   public class GetMac

    {

        ///<summary>

        ///  ipconfig /all Mac

        ///</summary>

        ///<returns></returns>

        public static List<string> GetMacByIpConfig()

        {

            List<string> macs =new List<string>();

            ProcessStartInfo startInfo = new ProcessStartInfo("ipconfig", "/all");

            startInfo.UseShellExecute = false;

            startInfo.RedirectStandardInput = true;

            startInfo.RedirectStandardOutput = true;

            startInfo.RedirectStandardError = true;

            startInfo.CreateNoWindow = true;

            Process p = Process.Start(startInfo);

            // 

            StreamReader reader = p.StandardOutput;

            string line = reader.ReadLine();

            while (!reader.EndOfStream)

            {

                if (!string.IsNullOrEmpty(line))

                {

                    line = line.Trim();

                    if (line.StartsWith(" "))

                    {

                        macs.Add(line.Substring(32));

                    }

                }

                line = reader.ReadLine();

            }

            // 

            p.WaitForExit();

            p.Close();

            reader.Close();

            return macs;

        }



        ///<summary>

        ///  WMI MAC

        ///</summary>

        ///<returns></returns>

        public static List<string> GetMacByWmi()

        {

            List<string> macs =new List<string>();

            string mac ="";

            ManagementClass mc =new ManagementClass("Win32_NetworkAdapterConfiguration");

            ManagementObjectCollection moc = mc.GetInstances();

            foreach (ManagementObject mo in moc)

            {

                if ((bool)mo["IPEnabled"])

                {

                    mac = mo["MacAddress"].ToString();

                    macs.Add(mac);

                }

            }

            return macs;

        }



        ///<summary>

        ///  NetworkInterface Mac

        ///</summary>

        ///<returns></returns>

        public static List<string> GetMacByNetworkInterface()

        {

            List<string> macs =new List<string>();

            NetworkInterface[] interfaces = NetworkInterface.GetAllNetworkInterfaces();

            foreach (NetworkInterface ni in interfaces)

            {

                macs.Add(ni.GetPhysicalAddress().ToString());

            }

            return macs;

        }



        ///<summary>

        ///  SendARP Mac

        ///  （ ） 

        ///</summary>

        ///<param name="remoteIP"></param>

        ///<returns></returns>

        public static string GetMacBySendArp(string remoteIP)

        {

            StringBuilder macAddress =new StringBuilder();

            try

            {

                Int32 remote = inet_addr(remoteIP);

                Int64 macInfo =new Int64();

                Int32 length =6;

                SendARP(remote, 0, ref macInfo, ref length);

                string temp = Convert.ToString(macInfo, 16).PadLeft(12, '0').ToUpper();

                int x =12;

                for (int i =0; i <6; i++)

                {

                    if (i ==5)

                    {

                        macAddress.Append(temp.Substring(x -2, 2));

                    }

                    else

                    {

                        macAddress.Append(temp.Substring(x -2, 2) +"-");

                    }

                    x -=2;

                }

                return macAddress.ToString();

            }

            catch

            {

                return macAddress.ToString();

            }

        }



        [DllImport("Iphlpapi.dll")]

        private static extern int SendARP(Int32 dest, Int32 host, ref Int64 mac, ref Int32 length);

        [DllImport("Ws2_32.dll")]

        private static extern Int32 inet_addr(string ip);

    }

ブログhttp://www.cnblogs.com/diulela/archive/2012/04/07/2436111.htmlより