ASP.NET C# 获取IP与MAC

来源：互联网发布：淘宝其他费用编辑：程序博客网时间：2024/06/06 05:42

获取服务器的IP地址方法以DNS法较为简单实用，如下：
using System.Net;

private void ButtonIP_Click(object sender, System.EventArgs e)
{
     System.Net.IPAddress[] addressList = Dns.GetHostByName(Dns.GetHostName()).AddressList;
   if ( addressList.Length>1)
   {   TextLIP.Text = addressList[0].ToString();
          TextSIP.Text = addressList[1].ToString();
   }
   else
    {
          TextLIP.Text = addressList[0].ToString();
          TextSIP.Text = "没有可用的连接";
    }
}

获取服务器的IP地址与MAC地址另一方法如下：

using System.Management;

   string stringMAC = "";
   string stringIP = "";
   ManagementClass MC = new ManagementClass "Win32_NetworkAdapterConfiguration");
   ManagementObjectCollection MOC= MC.GetInstances();

   foreach(ManagementObject MO in MOC)
   {
    if ((bool)MO["IPEnabled"] == true)
    {
     stringMAC += MO["MACAddress"].ToString();
     TextMAC.Text = stringMAC.ToString();
     string[] IPAddresses = (string[]) MO["IPAddress"];
     if(IPAddresses.Length > 0)
     stringIP = IPAddresses[0];
     TextIP.Text = stringIP.ToString();
    }
   }

获取客户端本机的IP地址相当简易，方法如下：

using System.Net;

TextIP.Text=Page.Request.UserHostAddress;

如果要想获得远程的地址，需要用sendarp这个函数来实现。具体的代码如下：
[DllImport("Iphlpapi.dll")]
private static unsafe extern
int SendARP(Int32 dest,Int32 host,ref IntPtr mac,ref IntPtr length);
[DllImport("Ws2_32.dll")]
private static extern
Int32 inet_addr(string ip);
Int32 ldest= inet_addr("157.60.68.163");//目的地的ip
Int32 lhost= inet_addr("157.60.68.33");//本地的ip
try {
Byte[] macinfo=new Byte[6];
Int32 length=6;
IntPtr mac=new IntPtr(macinfo[0]);
IntPtr len=new IntPtr(6);
int ii=SendARP(ldest,lhost, ref mac, ref len);
Console.WriteLine("Mac Add:" mac);
Console.WriteLine("length:" len);
}
catch(Exception err)
{
Console.WriteLine(err);
}