public partial class 测试 : System.Web.UI.Page
{
[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);
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
aaa.Text = GetMac();
}
}
private string GetMac()
{
// 在此处放置用户代码以初始化页面
try
{
string userip = Request.UserHostAddress;
string strClientIP = Request.UserHostAddress.ToString().Trim();
Int32 ldest = inet_addr(strClientIP); //目的地的ip
Int32 lhost = inet_addr(""); //本地服务器的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!");
// }
//}
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));
}
}
}
return mac_dest;
}
catch (Exception err)
{
Response.Write(err.Message);
return "00";
}
}
}
我在本机,用公司局域网的电脑测试是正确的,但是放到服务器上,就不对,所有MAC地址都是00-00-00-00-00-00
请问这个问题如何解决