public class GetMac

    {

        ///<summary>

        /// 根据截取ipconfig /all命令的输出流获取网卡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);

            //截取输出流

            StreamReader reader = p.StandardOutput;

            string line = reader.ReadLine();

            while (!reader.EndOfStream)

            {

                if (!string.IsNullOrEmpty(line))

                {

                    line = line.Trim();

                    if (line.StartsWith("物理地址"))

                    {

                        macs.Add(line.Substring());

                    }

                }

                line = reader.ReadLine();

            }

            //等待程序执行完退出进程

            p.WaitForExit();

            p.Close();

            reader.Close();

            return macs;

        }

        ///<summary>

        /// 通过WMI读取系统信息里的网卡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>

        /// 通过NetworkInterface读取网卡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>

        /// 通过SendARP获取网卡Mac

        /// 网络被禁用或未接入网络（如没插网线）时此方法失灵

        ///</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 =;

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

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

                int x =;

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

                {

                    if (i ==)

                    {

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

                    }

                    else

                    {

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

                    }

                    x -=;

                }

                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);

    }