IP Address lookup

lookup.cs

lblInfo.Text = string.Format( "Device IP: {0} {1} Name: {2}", ipAddress, Environment.NewLine, hostName );
var localaddr = Request.ServerVariables["LOCAL_ADDR"];
lblInfo.Text += "<br> local" + localaddr;
var remoteHost = Request.ServerVariables["REMOTE_HOST"];
lblInfo.Text += "<br> remote" + remoteHost;
var getclient = GetClientIPAddress();
lblInfo.Text += "<br> getclient" + getclient;
var remoteaddr = Request.ServerVariables["REMOTE_ADDR"];
lblInfo.Text += "<br> remote" + remoteaddr;
//(Request.ServerVariables["HTTP_X_FORWARDED_FOR"]) ? Request.ServerVariables["REMOTE_ADDR"]).Split(',')[0].Trim();
//HttpContext.Current.Request.Params["HTTP_CLIENT_IP"] ?? HttpContext.Current.Request.UserHostAddress;

/// <summary>
/// Gets the client ip address.
/// </summary>
/// <returns></returns>
protected string GetClientIPAddress()
{
    System.Web.HttpContext context = System.Web.HttpContext.Current;
    string ipAddress = context.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];

    if ( !string.IsNullOrEmpty( ipAddress ) )
    {
        string[] addresses = ipAddress.Split( ',' );
        if ( addresses.Length != 0 )
        {
            return addresses[0];
        }
    }

    return context.Request.ServerVariables["REMOTE_ADDR"];
}