Question

I would like to track client sessions by connection (not session state or cookies) in ASP .NET. I was planning on doing this by using the client’s IP address and ephemeral port number.

You can get the IPAddress in ASP .NET via

• HttpContext.Current.Request.UserHostAddress
• HttpContext.Current.Request.ServerVairables["REMOTE_ADDR"].

Neither of which give you the reply port number. Is there another way to get it? Is it even possible?

Answer 1

HttpContext.Current.Request.ServerVariables["REMOTE_PORT"].
                                                    ^^^^

perhaps?