using System;

using System.Management;

using System.Net;

 public class Program

    {

        static void Main(string[] args)

        {

            try

            {

                string ip = "";

                string mac = "";

                ManagementClass mc;

                string hostInfo = Dns.GetHostName();

                //IP地址

                //System.Net.IPAddress[] addressList = Dns.GetHostByName(Dns.GetHostName()).AddressList;这个过时

                  System.Net.IPAddress[] addressList = Dns.GetHostEntry(Dns.GetHostName()).AddressList;

                for (int i = 0; i < addressList.Length; i++)

                {

                    ip = addressList[i].ToString();

                }

                //mac地址

                mc = new ManagementClass("Win32_NetworkAdapterConfiguration");

                ManagementObjectCollection moc = mc.GetInstances();

                foreach (ManagementObject mo in moc)

                {

                    if (mo["IPEnabled"].ToString() == "True")

                    {

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

                    }

                }

                //输出

                string outPutStr = "IP:{0},\n MAC地址:{1}";

                outPutStr = string.Format(outPutStr, ip, mac);

                Console.WriteLine(outPutStr);

            }

            catch (Exception e)

            { }

            Console.ReadLine();

        }

    }