using System.Net;

using System;

​

using System.Numerics;

using System.Text;

using System.Net.Http;

using System.Net.Http.Headers;

​

​

public class Program

{

    public static string GetIPDecimalValueIfV6(string clientIP, out bool isIpV6)

    {

        isIpV6 = false;

        if (IPAddress.TryParse(clientIP, out IPAddress address))

        {

            isIpV6 = address.AddressFamily == System.Net.Sockets.AddressFamily.InterNetworkV6;

            if (isIpV6)

            {

                byte[] bytes = address.GetAddressBytes();

                StringBuilder bldr = new StringBuilder();

                for (int i = 0; i < 16; i += 2)

                {

                    bldr.AppendFormat("{0:x2}{1:x2}:", bytes[i], bytes[i + 1]);

                }

                return bldr.ToString().Replace(":", string.Empty);

            }

        }

        return clientIP;

    }

​

    public static BigInteger IPToNumber(string IpAddress, bool isIpV6)

    {

        if (string.IsNullOrEmpty(IpAddress) || IpAddress == "::1")

            return 0;

        try

        {

            if (isIpV6)

            {

                BigInteger ipIntValue = BigInteger.Parse(IpAddress, System.Globalization.NumberStyles.HexNumber);

                return ipIntValue;

            }

            else

            {

                double num = 0;

                string[] arrDec = IpAddress.Split('.');

​

                for (int i = arrDec.Length - 1; i >= 0; i--)

                {

                    num += ((int.Parse(arrDec[i]) % 256) * Math.Pow(256, (3 - i)));

                }

                return new BigInteger(num);

            }

        }

        catch

        {

            return 0;

        }

    }

​

    public static void Main()

    {

​

​

​

        string ipcliente = "2001:200:ffff:ffff:ffff:ffff:ffff:ffff";        

        string _ipcliente = "2001:200:ffff:ffff:ffff:ffff:ffff:ffff";

​

        Console.WriteLine("IP: {0}", ipcliente);

            string tableToSearch = "paisip";

                    ipcliente = GetIPDecimalValueIfV6(ipcliente, out bool isIpV6);

                Console.WriteLine("IP: {0}", ipcliente);

                    if (isIpV6)

                        tableToSearch = "paisipv6";

​

                    BigInteger IP;

​

                    if (ipcliente != string.Empty && ipcliente != null)

                    {

                        IP = IPToNumber(ipcliente, isIpV6);

                    }

                    else

                    {

                        IP = 0;

                    }

        Console.WriteLine("IP DECIMAL: {0}", IP);

        Console.WriteLine("EJEMPLO LLAMADO A http://ip-api.com/json/{0}", _ipcliente);

        HttpClient client = new HttpClient();

        client.BaseAddress = new Uri("http://ip-api.com/json/");

        client.DefaultRequestHeaders.Accept.Clear();

        client.DefaultRequestHeaders.Accept.Add(

            new MediaTypeWithQualityHeaderValue("application/json"));

         HttpResponseMessage response = client.GetAsync(_ipcliente).GetAwaiter().GetResult();

         Console.WriteLine("RESULT {0} ",  response.StatusCode);

    if (response.IsSuccessStatusCode)

    {

         Console.WriteLine("RESPONSE {0}", response.Content.ReadAsStringAsync().GetAwaiter().GetResult());

    }

        Console.WriteLine("EJEMPLO LOCALIZACION RANGO DE IP ");

        IPNetwork ipnetwork = IPNetwork.Parse("2a00:4920::/29");

​

        Console.WriteLine("Network : {0}", ipnetwork.Network);

        Console.WriteLine("Netmask : {0}", ipnetwork.Netmask);

        Console.WriteLine("Broadcast : {0}", ipnetwork.Broadcast);

        Console.WriteLine("FirstUsable : {0}", ipnetwork.FirstUsable);

        Console.WriteLine("LastUsable : {0}", ipnetwork.LastUsable);

        Console.WriteLine("Usable : {0}", ipnetwork.Usable);

        Console.WriteLine("Cidr : {0}", ipnetwork.Cidr);

​

         client = new HttpClient();

        client.BaseAddress = new Uri("http://ip-api.com/json/");

        client.DefaultRequestHeaders.Accept.Clear();

        client.DefaultRequestHeaders.Accept.Add(

            new MediaTypeWithQualityHeaderValue("application/json"));

         HttpResponseMessage _response = client.GetAsync(ipnetwork.FirstUsable.ToString()).GetAwaiter().GetResult();

         Console.WriteLine("RESULT {0} ",  _response.StatusCode);

         _response = client.GetAsync(ipnetwork.LastUsable.ToString()).GetAwaiter().GetResult();

         Console.WriteLine("RESULT {0} ",  _response.StatusCode);

    }

}