How to log Client IP Address and Machine Name in ASP.NET

I am developing a Web Application in ASP.net, which requires login name and password. I want to log IP Address and Machine Name of client, who are accessing this Web Application. I am using log4net for logging. I have tried this piece of code, but I am getting Server Machine HostName in log after deploying this web application using IIS-7 instead of Client Machine Name. `Login Page Page_Load` Method: ``` protected void Page_Load(object sender, EventArgs e) { log4net.GlobalContext.Properties["Hostname"] = Dns.GetHostName(); } ``` Web.Config Changes: ``` <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%date %property{Hostname} [%thread] %-5level %logger - %message%newline" /> </layout> ``` Its really huge project, So Please suggest me the way which requires minimum changes in Code to log the IP Address and Machine Name of Client.