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asp.net获取客户端的MAC(网卡地址)

2014-04-23 18:13 447 查看
[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);

private void Page_Load(object sender, System.EventArgs e)

{

try

{

string userip=Request.UserHostAddress;

string strClientIP = Request.UserHostAddress.ToString().Trim();

Int32 ldest = inet_addr(strClientIP); //目的地的ip

Int64 macinfo = new Int64();

Int32 len = 6;

int res = SendARP(ldest,0, ref macinfo, ref len);

string mac_src=macinfo.ToString("X");

if(mac_src == "0")

{

if (userip == "127.0.0.1")

{

Response.Write("正在访问Localhost!");

}

else

{

Response.Write("欢迎来自IP为" + userip + "的朋友!" + "<br>");

}

return;

}

while(mac_src.Length<12)

{

mac_src = mac_src.Insert(0,"0");

}

string mac_dest="";

for(int i=0;i<11;i++)

{

if (0 == (i % 2))

{

if ( i == 10 )

{

mac_dest = mac_dest.Insert(0,mac_src.Substring(i,2));

}

else

{

mac_dest ="-" + mac_dest.Insert(0,mac_src.Substring(i,2));

}

}

}

Response.Write ("欢迎来自IP为"+userip+ "<br>" + ",MAC地址为"+mac_dest+"的朋友!"

+ "<br>");

}

catch(Exception err)

{

Response.Write(err.Message);

}

}
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