IP获取方式

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.Management;
using System.Runtime.InteropServices;

namespace HelloWorldConsole
{
    class Program
    {
        static void Main(string[] args)
        {
            //Dns.GetHostByName(Dns.GetHostName());
            GetIP gi = new GetIP();
            Console.WriteLine("本地网卡信息:");
            //Console.WriteLine(gi.getLocalIP() + " - " + gi.getLocalMac());

            Console.WriteLine("\n\r远程网卡信息:");
            string[] temp = gi.getRemoteIP("scmobile-tj2");
            for (int i = 0; i < temp.Length; i++)
            {
                Console.WriteLine(temp[i]);
            }
            Console.WriteLine(gi.getRemoteMac("192.168.0.3", "192.168.0.1"));
            Console.ReadKey();
        }
        public class GetIP
        {
            [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);

            /// <summary>
            /// 获取本机IP
            /// </summary>
            public void getLocalIP()
            {
                IPHostEntry ipHost = Dns.GetHostEntry(Dns.GetHostName());
                if (ipHost.AddressList.Length > 0)
                {
                    foreach (IPAddress ipAddress in ipHost.AddressList)
                    {
                        Console.WriteLine(ipAddress.ToString());
                        //Console.ReadKey();
                    }
                }
            }

            /// <summary>
            /// 获取本机Mac地址
            /// </summary>
            public void getLocalMac()
            {
                string mac = null;
                ManagementObjectSearcher query = new ManagementObjectSearcher("SELECT * FROM Win32_NetworkAdapterConfiguration");
                ManagementObjectCollection queryCollection = query.Get();
                foreach (ManagementObject mo in queryCollection)
                {
                    if (mo["IPEnabled"].ToString() == "True")
                    {
                        mac = mo["MacAddress"].ToString();
                        Console.WriteLine(mac);
                    }
                }
            }

            //获取远程主机IP
            public string[] getRemoteIP(string RemoteHostName)
            {
                IPHostEntry ipEntry = Dns.GetHostEntry(RemoteHostName);
                IPAddress[] IpAddr = ipEntry.AddressList;
                string[] strAddr = new string[IpAddr.Length];
                for (int i = 0; i < IpAddr.Length; i++)
                {
                    strAddr[i] = IpAddr[i].ToString();
                }
                return (strAddr);
            }

            //获取远程主机MAC
            public string getRemoteMac(string localIP, string remoteIP)
            {
                Int32 ldest = inet_addr(remoteIP); //目的ip 
                Int32 lhost = inet_addr(localIP); //本地ip 

                try
                {
                    Int64 macinfo = new Int64();
                    Int32 len = 6;
                    int res = SendARP(ldest, 0, ref macinfo, ref len);
                    return Convert.ToString(macinfo, 16);
                }
                catch (Exception err)
                {
                    Console.WriteLine("Error:{0}", err.Message);
                }
                return 0.ToString();
            }
        }
        
    }


}