http - Request Web Page in c# spoofing the Host

Question

I need to create a request for a web page delivered to our web sites, but I need to be able to set the host header information too. I have tried this using HttpWebRequest, but the Header information is read only (Or at least the Host part of it is). I need to do this because we want to perform the initial request for a page before the user can. We have 10 web server which are load balanced, so we need to request the file from each of the web servers.

I have tried the following:

HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://192.168.1.5/filename.htm");
request.Headers.Set("Host", "www.mywebsite.com");
WebResponse response = request.GetResponse();

Obviously this does not work, as I can't update the header, and I don't know if this is indeed the right way to do it.

Answer 1

Although this is a very late answer, maybe someone can get benefit of it

HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(new Uri("http://192.168.1.1"));
request.Headers.GetType().InvokeMember("ChangeInternal", BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.InvokeMethod, null, request.Headers, new object[] {"Host","www.mysite.com"});

Reflection is your friend :)