How to get client IP address in MVC 4 controller?

Question

I tried to get client IP adress in controller. It is working but sometimes I get this error:

The underlying connection was closed: An unexpected error occurred on a receive


        String IP = "";

        using (WebResponse response = request.GetResponse())
        {
            using (StreamReader stream = new StreamReader(response.GetResponseStream()))
            {
                IP = stream.ReadToEnd();
            }
        }

        int first = IP.IndexOf("Address: ") + 9;
        int last = IP.LastIndexOf("</body>");
        IP = IP.Substring(first, last - first);

Is there any different method for getting client IP address?

Possible duplicate of [How can I get the client's IP address in ASP.NET MVC?](http://stackoverflow.com/questions/2577496/how-can-i-get-the-clients-ip-address-in-asp-net-mvc) — SJFJ, Oct 25 '16 at 12:18

score 12 · Accepted Answer · edited Dec 16 '16 at 15:23

12

Either of these should work, from inside your Controller:

method 1:

string userIpAddress = this.Request.ServerVariables["REMOTE_ADDR"];

method 2:

string userIpAddress = this.Request.UserHostAddress;

edited Dec 16 '16 at 15:23

aledpardo

761
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19

answered Mar 26 '14 at 13:50

Vasil Dininski

2,368
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I tried method 1 and method 2 but result IP:127.0.0.1 I dont want local ip.I need external ip address – user3107343 Mar 26 '14 at 13:58
2

If you are testing this on localhost you will receive the looback address. If you receive a request not from the local machine it should work as expected. – Vasil Dininski Mar 26 '14 at 15:16
Yes you are right.I tested on hosting it is working.Thank you bro – user3107343 Mar 26 '14 at 19:52
1

These code snippets are to be used inside a controller's action, so this refers to the controller. – Vasil Dininski Jan 20 '17 at 22:28

score 4 · Answer 2 · answered Mar 26 '14 at 13:49

4

try:

HttpContext.Request.UserHostAddress

http://msdn.microsoft.com/en-us/library/system.web.httprequest.userhostaddress%28v=vs.110%29.aspx

answered Mar 26 '14 at 13:49

markpsmith

4,860
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score 2 · Answer 3 · edited Dec 01 '18 at 12:06

2

Following line of code has helped me:

string ip = System.Web.HttpContext.Current.Request.UserHostAddress;

edited Dec 01 '18 at 12:06

OrionMD

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answered Aug 02 '16 at 13:14

BJ Patel

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nadun · Answer 4 · 2022-05-13T08:54:38.707

0

System.Web.HttpContext.Current.Request.UserHostAddress this gives user host address and it's not real request IP.

Request.ServerVariables["REMOTE_ADDR"] also returns the same.

Because if the request has been passed on by one, or more, proxy servers then the IP address returned by HttpRequest.UserHostAddress property will be the IP address of the last proxy server that relayed the request.

You can use this string manipulation to get the correct Ip of the request

string ipAddressInfo = request.ServerVariables["HTTP_X_FORWARDED_FOR"]; 
   
if (ipAddressInfo.Split(',') > 0){
  `string clientIpAddress = ipAddressInfo.Split(',')[0];`

}

edited May 13 '22 at 08:54

answered May 09 '22 at 06:56

nadun

21
7

1

Your answer could be improved with additional supporting information. Please [edit] to add further details, such as citations or documentation, so that others can confirm that your answer is correct. You can find more information on how to write good answers [in the help center](/help/how-to-answer). – Community May 09 '22 at 13:29

How to get client IP address in MVC 4 controller?

4 Answers4