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();

}

}