ASP.NET获取IP与MAC地址的方法

获取服务器的IP地址方法以DNS法较为简单实用，如下：


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;


如要获取客户端本机的MAC地址就相对复杂些，得导入调用两个API，用ARP协议获取，但这样只能获取到同网段机器的MAC，对于跨网段的得利用IP扫描或cmd中nbtstat命令获取MAC地址。也可通过读取系统注册表值或WMI的数据库来获取。


获取客户端IP:




 1public string GetUserIP()
 2   {
 3       string _userIP;
 4       if(Request.ServerVariables["HTTP_VIA"] == null)
 5         {
 6             userIP= Request.UserHostAddress;
 7         }
 8       else
 9        {
10           userIP= Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
11        }
12       return userIP;
13    }
14
获取客户端MAC地址:


 1[DllImport("Iphlpapi.dll")] 
 2  private static extern int SendARP(Int32 dest,Int32 host,ref Int64 mac,ref Int32 length); 
 3  [DllImport("Ws2_32.dll")]
 4  private static extern Int32 inet_addr(string ip);
 5
 6  private void Page_Load(object sender, System.EventArgs e)
 7  {
 8   // 在此处放置用户代码以初始化页面
 9   try
10   {
11    string userip=Request.UserHostAddress;
12    string strClientIP = Request.UserHostAddress.ToString().Trim();
13    Int32 ldest = inet_addr(strClientIP); //目的地的ip 
14    Int32 lhost = inet_addr("");   //本地服务器的ip 
15    Int64 macinfo = new Int64(); 
16    Int32 len = 6; 
17    int res = SendARP(ldest,0, ref macinfo, ref len);
18    string mac_src=macinfo.ToString("X");
19    if(mac_src == "0")
20    {
21     if(userip=="127.0.0.1")
22      Response.Write ("正在访问Localhost!");
23     else
24      Response.Write ("欢迎来自IP为" + userip + "的朋友！" + "<br>");
25     return;
26    }
27
28    while(mac_src.Length<12)
29    {
30     mac_src = mac_src.Insert(0,"0");
31    }
32
33    string mac_dest="";
34
35    for(int i=0;i<11;i++)
36    {
37     if (0 == (i % 2))
38     {
39      if ( i == 10 )
40      {
41       mac_dest = mac_dest.Insert(0,mac_src.Substring(i,2));
42      }
43      else
44      {
45       mac_dest ="-" + mac_dest.Insert(0,mac_src.Substring(i,2));
46      }
47     } 
48    }
49
50    Response.Write ("欢迎来自IP为"+userip+ "<br>" + ",MAC地址为"+mac_dest+"的朋友！" 
51
52     +   "<br>");
53   }
54   catch(Exception err) 
55   { 
56    Response.Write(err.Message);
57   }
58  }
59
 获取服务器IP一：


 1private void ButtonIP_Click(object sender, System.EventArgs e)
 2{ 
 3   Syste m.Net.IPAddress[] addressList = Dns.GetHostByName(Dns.GetHostName()).AddressList;
 4if ( addressList.Length>1)
 5{ 
 6TextLIP.Text = addressList[0].ToString();
 7TextSIP.Text = addressList[1].ToString();
 8}
 9else
10{
11TextLIP.Text = addressList[0].ToString();TextSIP.Text = "没有可用的连接";
12}
13} 
14
15
 获取服务器IP及MAC地址二：


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();
}
}