服务器端和客户端IP地址及MAC地址获取

最新推荐文章于 2021-08-09 19:31:50 发布

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最新推荐文章于 2021-08-09 19:31:50 发布

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CC 4.0 BY-SA版权

文章标签：服务器 string exception website null

本文链接：https://blog.youkuaiyun.com/ShinStone/article/details/5899653

本文介绍了如何在服务器端和客户端获取IP地址和MAC地址的方法。在服务器端，通过Dns.GetHostAddresses获取IP，使用ManagementClass查询Win32_NetworkAdapterConfiguration获取MAC。在网站中，通过HttpContext获取客户端IP，并利用SendARP获取客户端MAC地址。

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本机Ip：

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public static string GetServerIp()
        {
            string hostName = Dns.GetHostName();
            IPAddress[] array = Dns.GetHostAddresses(hostName);
            foreach (IPAddress adr in array)
            {
                if (!adr.IsIPv6LinkLocal)
                { return adr.ToString(); }
            }
            return string.Empty;
        }

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本机Mac：

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        public static string GetServerMac()
        {
            ManagementClass mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
            ManagementObjectCollection moc = mc.GetInstances();

            string str = "";
            foreach (ManagementObject mo in moc)
            {
                if ((bool)mo["IPEnabled"] == true)
                    str = mo["MacAddress"].ToString();
            }
            return str;
        }

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客户端IPIn Website：

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private string GetClientIP()
{
string result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
if (null == result || result == String.Empty)
{
result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
}

if (null == result || result == String.Empty)
{
result = HttpContext.Current.Request.UserHostAddress;
}
return result;
}

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客户端MAC：

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      [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 string GetMac()
        {
            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")
                {
                    return userip;
                }

                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 ex)
            {

}
return "";

}

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