Asp Net Web API 2 1 get client IP address

Question

Hello I need get client IP that request some method in web api  I have tried to use this code from here but it always returns server local IP   how to get in correct way    HttpContext Current Request UserHostAddress    from other questions   public static class HttpRequestMessageExtensions               private const string HttpContext    MS HttpContext           private const string RemoteEndpointMessage    System ServiceModel Channels RemoteEndpointMessageProperty            public static string GetClientIpAddress this HttpRequestMessage request                        if  request Properties ContainsKey HttpContext                                 dynamic ctx   request Properties HttpContext                   if  ctx    null                                        return ctx Request UserHostAddress                                               if  request Properties ContainsKey RemoteEndpointMessage                                 dynamic remoteEndpoint   request Properties RemoteEndpointMessage                   if  remoteEndpoint    null                                        return remoteEndpoint Address                                               return null

User · Answer

I think this is the most clear solution  using an extension method   public static class HttpRequestMessageExtensions       private const string HttpContext    MS HttpContext       private const string RemoteEndpointMessage    System ServiceModel Channels RemoteEndpointMessageProperty        public static string GetClientIpAddress this HttpRequestMessage request                if  request Properties ContainsKey HttpContext                         dynamic ctx   request Properties HttpContext               if  ctx    null                                return ctx Request UserHostAddress                                   if  request Properties ContainsKey RemoteEndpointMessage                         dynamic remoteEndpoint   request Properties RemoteEndpointMessage               if  remoteEndpoint    null                                return remoteEndpoint Address                                   return null            So just use it like   var ipAddress   request GetClientIpAddress      We use this in our projects   Source Reference  Retrieving the client   s IP address in ASP NET Web API

User · Answer

Replying to this 4 year old post  because this seems overcomplicated to me  at least if you re hosting on IIS  Here s how I solved it  using System  using System Net  using System Web  using System Web Http       HttpPost   Route  quot ContactForm quot    public IHttpActionResult PostContactForm  FromBody  ContactForm contactForm                var hostname   HttpContext Current Request UserHostAddress          IPAddress ipAddress   IPAddress Parse hostname           IPHostEntry ipHostEntry   Dns GetHostEntry ipAddress                Unlike OP  this gives me the client IP and client hostname  not the server   Perhaps they ve fixed the bug since then

User · Answer

Try to get the Ip using  ip   HttpContext Current    null   HttpContext Current Request UserHostAddress

User · Answer

If you re self-hosting with Asp Net 2 1 using the OWIN Self-host NuGet package you can use the following code    private string getClientIp HttpRequestMessage request   null                if  request    null                        return null                     if  request Properties ContainsKey  MS OwinContext                          return   OwinContext  request Properties  MS OwinContext    Request RemoteIpAddress                    return null

User · Answer

string userRequest   System Web HttpContext Current Request UserHostAddress    This works on me   System Web HttpContext Current Request UserHostName  this one return me the same return I get from the UserHostAddress

User · Answer

My solution is similar to user1587439 s answer  but works directly on the controller s instance  instead of accessing HttpContext Current     In the  Watch  window  I saw that this RequestContext WebRequest contains the  UserHostAddress  property  but since it relies on the WebHostHttpRequestContext type  which is internal to the  System Web Http  assembly  - I wasn t able to access it directly  so I used reflection to directly access it   string hostAddress     System Web HttpRequestWrapper this RequestContext GetType   Assembly GetType  System Web Http WebHost WebHostHttpRequestContext   GetProperty  WebRequest   GetMethod Invoke this RequestContext  null   UserHostAddress   I m not saying it s the best solution  using reflection may cause issues in the future in case of framework upgrade  due to name changes   but for my needs it s perfect

User · Answer

It s better to cast it to HttpContextBase  this way you can mock and test it more easily        public string GetUserIp HttpRequestMessage request        if  request Properties ContainsKey  MS HttpContext                  var ctx   request Properties  MS HttpContext   as HttpContextBase          if  ctx    null                        return ctx Request UserHostAddress                       return null

User · Answer

With Web API 2 2  Request GetOwinContext   Request RemoteIpAddress

User · Answer

Following link might help you  Here s code from the following link   reference   getting-the-client-ip-via-asp-net-web-api  using System Net Http  using System ServiceModel Channels  using System Web  using System Web Http    namespace Trikks Controllers Api       public class IpController   ApiController                 public string GetIp                               return GetClientIp                           private string GetClientIp HttpRequestMessage request   null                              request   request    Request                   if  request Properties ContainsKey  MS HttpContext                                            return     HttpContextWrapper request Properties  MS HttpContext    Request UserHostAddress                                    else if  request Properties ContainsKey RemoteEndpointMessageProperty Name                                          RemoteEndpointMessageProperty prop    RemoteEndpointMessageProperty request Properties RemoteEndpointMessageProperty Name                        return prop Address                                    else if  HttpContext Current    null                                        return HttpContext Current Request UserHostAddress                                    else                                         return null                                            Another way of doing this is below   reference  how-to-access-the-client-s-ip-address  For web hosted version  string clientAddress   HttpContext Current Request UserHostAddress    For self hosted  object property          Request Properties TryGetValue typeof RemoteEndpointMessageProperty  FullName  out property           RemoteEndpointMessageProperty remoteProperty   property as RemoteEndpointMessageProperty

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