C# show IP address

Question

Trying to capture the IP address of users within local network, but for some reason getting the following output on the web page "Your IP address is :::1"

is this IP6 address?

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;


public partial class _Default : System.Web.UI.Page
{
    protected void getIP()
    {
        string IPaddr = string.Empty;
        if (HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDER_FOR"] != null)
        {
            IPaddr = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDER_FOR"].ToString();
        }
        else if (HttpContext.Current.Request.UserHostAddress.Length != 0)
        {
            IPaddr = HttpContext.Current.Request.UserHostAddress;
        }
        Label1.Text = "Your IP address is :" + IPaddr;
    }

    protected void Page_Load(object sender, EventArgs e)
    {
        getIP();
    }
}

Possible duplicate of [Request.UserHostAddress issue with return result "::1"](https://stackoverflow.com/questions/6408957/request-userhostaddress-issue-with-return-result-1) — Jamie Pollard, Apr 26 '18 at 15:09

score 0 · Answer 1 · answered Apr 26 '18 at 15:07

0

Yes, this is an IPv6 address.

Try accessing the server using the IPv4 address (e.g. 127.0.0.1).

answered Apr 26 '18 at 15:07

Max Malysh

29,384
19
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115

score 0 · Answer 2 · answered Apr 26 '18 at 15:43

0

You won't get the IP address if you are running from Visual Studio. You can deploy it to IIS then try it from a client to see the client's IP address. If the server has IPv4 enable, you will get the IPv4 address.

answered Apr 26 '18 at 15:43

Brandon168

21
1
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C# show IP address

2 Answers2