获取本机MAC和获取客户端MAC

1.         /// <summary>
2.         /// 获取客户端MAC
3.         /// </summary>
4.         /// <param name="dest"></param>
5.         /// <param name="host"></param>
6.         /// <param name="mac"></param>
7.         /// <param name="length"></param>
8.         /// <returns></returns>
9.         [DllImport("Iphlpapi.dll")]
10.         private static extern int SendARP(Int32 dest, Int32 host, ref Int64 mac, ref Int32 length);
11.         [DllImport("Ws2_32.dll")]
12.         private static extern Int32 inet_addr(string ip);
13.         public static string GetMAC()
14.         {
15.             // 在此处放置用户代码以初始化页面
16.             try
17.             {
18.                 string strClientIP = HttpContext.Current.Request.UserHostAddress.ToString().Trim();
19.                 Int32 ldest = inet_addr(strClientIP); //目的地的ip 
20.                 Int32 lhost = inet_addr("");   //本地服务器的ip 
21.                 Int64 macinfo = new Int64();
22.                 Int32 len = 6;
23.                 int res = SendARP(ldest, 0, ref macinfo, ref len);
24.                 string mac_src = macinfo.ToString("X");//16进制
25.                 if (mac_src == "0")
26.                 {
27.                     if (strClientIP == "127.0.0.1")
28.                     {
29.                         return GetlMAC();
30.                     }
31.                 }
32.                 while (mac_src.Length < 12)
33.                 {
34.                     mac_src = mac_src.Insert(0, "0");
35.                 }
37.                 string mac_dest = "";
39.                 for (int i = 0; i < 11; i++)
40.                 {
41.                     if (0 == (i % 2))
42.                     {
43.                         if (i == 10)
44.                         {
45.                             mac_dest = mac_dest.Insert(0, mac_src.Substring(i, 2));
46.                         }
47.                         else
48.                         {
49.                             mac_dest = "-" + mac_dest.Insert(0, mac_src.Substring(i, 2));
50.                         }
51.                     }
52.                 }
54.                 return mac_dest;
55.             }
56.             catch (Exception err)
57.             {
58.                 return err.Message;
59.             }
60.         }
62.         /// <summary>
63.         /// 获取本机MAC
64.         /// </summary>
65.         /// <returns></returns>
66.         public static string GetlMAC()
67.         {
68.             string stringMAC = "";
69.             ManagementClass MC = new ManagementClass("Win32_NetworkAdapterConfiguration");
70.             ManagementObjectCollection MOC = MC.GetInstances();
72.             foreach (ManagementObject MO in MOC)
73.             {
74.                 if ((bool)MO["IPEnabled"] == true)
75.                 {
76.                     stringMAC += MO["MACAddress"].ToString();
77.                 }
78.             }
79.             stringMAC = stringMAC.ToString().Replace(":", "-");
80.             return stringMAC;
81.         }