How do you get the IP address from a request in ASP.NET?

Question

I have been trying to figure this out but cannot find a reliable way to get a clients IP address when making a request to a page in asp.net that works with all servers.

This question has been asked before. Check these links out:- - [How to get user client ip address in asp.net?](https://stackoverflow.com/questions/735350/how-to-get-user-client-ip-address-in-asp-net) - [Browser IP Address](https://stackoverflow.com/questions/756067/browser-ip-address) HTH. (vote to close this). — Pure.Krome, May 15 '09 at 04:36

score 38 · Answer 1 · answered May 15 '09 at 04:37

38

One method is to use Request object:

protected void Page_Load(object sender, EventArgs e)
{
    lbl1.Text = Request.UserHostAddress;
}

answered May 15 '09 at 04:37

TheVillageIdiot

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score 8 · Answer 2 · answered Jul 02 '15 at 20:59

8

 IpAddress=HttpContext.Current.Request.UserHostAddress;

answered Jul 02 '15 at 20:59

Taran

2,895
25
22

score 5 · Answer 3 · edited Dec 06 '17 at 07:29

5

Request.ServerVariables["REMOTE_ADDR"]

To access an index or property on C#, you should use [ ] instead of ( )

edited Dec 06 '17 at 07:29

Community

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answered May 15 '09 at 04:36

Jason

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Non-invocable member 'System.Web.HttpRequest.ServerVariables' cannot be used like a method. – Fredrick Gauss Apr 13 '17 at 08:53

Ankur vijay · Answer 4 · 2017-10-12T09:47:50.840

0

Use this code:

public static string GetIpAddress()
    {
        return HttpContext.Current != null ? HttpContext.Current.Request.UserHostAddress : "";
    }

edited Oct 12 '17 at 09:47

answered Aug 01 '17 at 09:31

Ankur vijay

1
2

Please explain your answer a little better rather than just putting in code. Try to explain why you answered this way. – Difster Aug 01 '17 at 10:36
HttpContext.Current.Request.UserHostAddress this contains our Ip address for this first of all we have to check HttpContext.Current is null or not – Ankur vijay Aug 03 '17 at 12:21
use this code in code behind of Asp.net public static string GetIpAddress() { return HttpContext.Current != null ? HttpContext.Current.Request.UserHostAddress : ""; } – Ankur vijay Oct 12 '17 at 09:44

score 0 · Answer 5 · answered Nov 01 '17 at 07:49

0

System.Web.HttpContext.Current.Request.UserHostAddress;

answered Nov 01 '17 at 07:49

Elnaz

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You might want to explain why this answer is better than the ones that were already given (in 2009 and 2015) – Hans Keﬆing Nov 01 '17 at 07:55
@HansKesting it's full reference. It's not an answer for questioner, But for anyone else needs it today – Elnaz Nov 01 '17 at 13:24

score 0 · Answer 6 · edited Jul 16 '20 at 19:45

0

Try this code:

var IpAddress = Request.Headers["Referer"][0];

edited Jul 16 '20 at 19:45

Bùi Đức Khánh

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6
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answered Jul 16 '20 at 16:33

miguel gutierrez

1

Please consider adding a bit of description to your question or perhaps a link to the documentation for this. This will help this answer be more complete and helpful further into the future. – Derek C. Jul 16 '20 at 17:15

score 0 · Answer 7 · answered Feb 11 '21 at 11:12

If there are proxies between client and server. HTTP_X_FORWARDED_FOR header can be used.

var ips = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
var clientIp = "";
if (!string.IsNullOrEmpty(ips))
{
    string[] addresses = ips.Split(',');
    if (addresses.Length != 0)
    {
        clientIp = addresses[0];
    }
}
else
{
    clientIp = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"];
}

score 0 · Answer 8 · answered Sep 24 '21 at 06:22

You can use HttpContext with property bellow:

var _request1 = HttpContext.Current.Request.UserHostAddress;
        string requestedDomain = HttpContext.Current.Request.ServerVariables["HTTP_HOST"];
        string requestScheme = HttpContext.Current.Request.Url.Scheme;
        string requestQueryString = HttpContext.Current.Request.ServerVariables["QUERY_STRING"];
        string requestUrl = HttpContext.Current.Request.ServerVariables["URL"];

How do you get the IP address from a request in ASP.NET?

8 Answers8

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