Question : How to capture application server ip address?

I am developing a web application using Microsoft Dot Net Framework 2.0 ( Asp.net/ Vb.Net),  I need to capture application host server Ip address, but not the server name.
I have used  System.Web.HttpContext.Current.Request.ServerVariables.Item("LOCAL_ADDR"). I am able to capture ip address when access the page from remote machine. But if I access the application on the same applicatoin server, I am getting as "local host" instead of the ip address.
But I need to get the ip address of the application server machine, irrespective of whether I access the application on the same server or different machine.

Answer : How to capture application server ip address?

I would think that you might get 127.0.0.1 from this:

Dim ipAddress As String = System.Net.Dns.GetHostEntry("localhost").AddressList(0).ToString()