C#获取IP及MAC地址 方法

using System.Net;
using System;
using System.Management;
using System.Runtime.InteropServices;

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);

//获取本机的IP

public string getLocalIP()
{
   string strHostName = Dns.GetHostName(); //得到本机的主机名

   IPHostEntry ipEntry = Dns.GetHostByName(strHostName); //取得本机IP

   string strAddr = ipEntry.AddressList[0].ToString();
   return(strAddr);
}
//获取本机的MAC

public string 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();
   }
   return(mac);
}

//获取远程主机IP

public string[] getRemoteIP(string RemoteHostName)
{
   IPHostEntry ipEntry = Dns.GetHostByName(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();
}


public static void Main(string[] args)
{
   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"));
}
}