UserHostAddress in Asp.net Core

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What is the equivalent in Asp.Net Core of the old HttpContext.Request.UserHostAddress?

I tried this.ActionContext.HttpContext but cannot find the UserHostAddress nor the ServerVariables properties.

Thanks

If you have access to the HttpContext, you can get the Local/Remote IpAddress from the Connection property like so:

var remote = this.HttpContext.Connection.RemoteIpAddress;
var local = this.HttpContext.Connection.LocalIpAddress;

Get Client IP Address in ASP.NET Core 2.x, UserHostAddress . But this does not apply to ASP.NET Core 2.0. We need a different way to retrieve HTTP Request information. 1. Define a  Ways to get IP in Classic ASP.NET. Example HttpContext.Current.Request.UserHostAddress. var ip = HttpContext.Current.Request.UserHostAddress; Example Request.UserHostAddress. var ip = Request.UserHostAddress; Create a New ASP.NET Core Web Project. We are going to create a new ASP.NET Core 3 WEB application and use that as our demonstration.

This has moved since the original answer was posted. Access it now via

httpContext.Features.Get<IHttpConnectionFeature>()?.RemoteIpAddress

How to Get Client IP Address in ASP.NET Core, NET Core 3 project for a client, and he asked me to capture the current client NET. Example HttpContext.Current.Request.UserHostAddress. var ip = HttpContext.Current.Request.UserHostAddress; Or just simply referencing to the current Request directly var ip = Request.UserHostAddress; However this will not work in ASP.NET Core 2.0 and onwards. You have to inject HttpContextAccessor instance from the Startup.cs class in ConfigureServices method

HttpRequest.UserHostAddress gives the IP address of the remote client. In ASP.NET Core 1.0, you have to use the HTTP connection feature to get the same. HttpContext has the GetFeature<T> method that you can use to get a specific feature. As an example, if you want to retrieve the remote IP address from a controller action method, you can do something like this.

var connectionFeature = Context
           .GetFeature<Microsoft.AspNet.HttpFeature.IHttpConnectionFeature>();

if (connectionFeature != null)
{
    string ip = connectionFeature.RemoteIpAddress.ToString();
}

HttpRequest.UserHostAddress Property (System.Web), Applies to .NET Framework. 4.8 4.7.2 4.7.1 4.7 4.6.2 4.6  IP Address In ASP.NET Core, Request.UserHostAddress has been removed though that attribute exists in the traditional ASP.NET applications. We can use HttpContext.Connection to retrieve the remove client IP address: var ipAddress = HttpContext.Connection.RemoteIpAddress?.ToString ();

For aspnet rc1-update1 I found IP(with port) in X-Forwarded-For header, which's value can be accessed from controller as HttpContext.Request.Headers["X-Forwarded-For"].FirstOrDefault().

How to get client IP Address in ASP.NET Core 2, var ip = Request.UserHostAddress;. However this will not work in ASP.NET Core 2.0 and onwards. You have to inject HttpContextAccessor  In classic ASP.NET we used to get client IP Address by Request.UserHostAddress. But this does not apply to ASP.NET Core 2.0. We need a different way to retrieve HTTP Request information. 1. Define a variable in your MVC controller. private IHttpContextAccessor _accessor; 2. DI into the controller's constructor

ASP.NET Core, IP Address In ASP.NET Core, Request.UserHostAddress has been removed though that attribute exists in the traditional ASP.NET applications. We can use  Multi-value cookies. Multi-value cookies aren't supported in ASP.NET Core. Create one cookie per value. Partial app migration. One approach to partial app migration is to create an IIS sub-application and only move certain routes from ASP.NET 4.x to ASP.NET Core while preserving the URL structure the app.

ASP.NET Get IP Address: UserHostAddress, This method gets the IP address of the current request. It uses the UserHostAddress property in the ASP.NET framework. This is the easiest way to get a string  member this.UserHostAddress : string Public ReadOnly Property UserHostAddress As String Property Value String. The IP address of the remote client. Examples. The following code example uses the HtmlEncode method to HTML-encode the value of the UserHostAddress property and the WriteLine method to write the encoded

Get IP Address In ASP.NET, NET to read the HTTP values sent by the client browser during a Web request. We access the UserHostAddress property of HttpRequest class  Foundation ASP.NET Core 3.1 Samples Basic (5) Hello World. This is the simplest ASP.NET Core application you can create. An ASP.NET Core application includes a super fast web server called Kestrel. In a few lines of code we set up the web server and a simple app. In this sample we use a Startup class to configure your application. This is the

Comments
  • This is always null for me. (I deploy the website on IIS on a VM)
  • Thank you very much this works, I would have never arrived to this myself. Where I could find a documentation o some reference? I`m also searching the old HttpContext.Request.ServerVariables["X_FORWARDED_FOR"]; Do you know what is the new syntax to this? Thanks!
  • This appears to not work correctly when running in IIS 8. The IP address returned in the code is different than what IIS outputs in the request log. Any updates to this that would allow it to work properly in IIS?
  • This header is typically only present if the request went through a load balancer (or something similar) to add the original address.