Get External Valid IP Address

Get External Valid IP Address

 

Here is a method to find out the external Valid IP address of your network/Connection:

In Design Part Include a label and Button:

    <div>
        <asp:Label ID="Label1" runat="server"></asp:Label>
        <br />
        <br />
        <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />
    </div> 

Include these namespaces first:

using System.IO;
using System.Net;
using System.Text;  

Then include this method in your codebehind:

        public static string GetExternalIP(string Provider)

        {

            try

            {

                if ((Provider == null) || (Provider == ""))

                    Provider = "http://automation.whatismyip.com/n09230945.asp";

                HttpWebRequest WebReq = (HttpWebRequest)HttpWebRequest.Create(Provider);

                HttpWebResponse WebRes = (HttpWebResponse)WebReq.GetResponse();

                System.IO.Stream ResStream = WebRes.GetResponseStream();

                StreamReader ResStreamReader = new StreamReader(ResStream, Encoding.UTF8);

                string IP = ResStreamReader.ReadToEnd();

                ResStream.Close();

                WebRes.Close();

               return IP;

            }

            catch (Exception ex)

            {

                return "127.0.0.1";

                //throw;

            }

        }

Then On the button click Event:

    protected void Button1_Click(object sender, EventArgs e)

    {

        string IPinternet = GetExternalIP(null);

        Label1.Text=IPinternet;

    }