What is the equivalent of UserHostAddress in ASP.NET Core?

Question

What is the equivalent in ASP.NET Core of ASP.NET Framework's HttpContext.Request.UserHostAddress?

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

Answer 1

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;

Answer 2

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();
}

Answer 3

This has moved since Badrinarayanan's answer in 2014 was posted. Access it now via

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

Answer 4

For ASP.NET Core RC1-update1 I found IP (with port) in X-Forwarded-For header, whose value can be accessed from a controller as:

HttpContext.Request.Headers["X-Forwarded-For"].FirstOrDefault()