asp.net mvc 3 - Problem to run MVC 3.0 application with IIS7 -

i have created application using: default web site >> right click >> add application

added following details alias : cafm physical path: path of application application pool: asp.net v4.0

now type following in internet explorer, working fine. http://localhost/cafm/authentication/logon

routing code:

 public static void registerroutes(routecollection routes)         {             routes.ignoreroute("{resource}.axd/{*pathinfo}");             routes.ignoreroute("favicon.ico");             routes.ignoreroute("default.aspx");             routes.maproute(                 "default", // route name                 "{controller}/{action}/{id}", // url parameters                 new { controller = "authentication", action = "index", id = urlparameter.optional } // parameter defaults             );         }          protected void application_start()         {             arearegistration.registerallareas();             registerglobalfilters(globalfilters.filters);             registerroutes(routetable.routes);         } 

problem: if type following in internet explorer giving me error http://localhost/cafm/

error:
resource cannot found.
description: http 404. resource looking (or 1 of dependencies) have been removed, had name changed, or temporarily unavailable. please review following url , make sure spelled correctly.

requested url: /cafm/

please me, how set default page authentication if user type http://localhost/cafm.

any suggestion appreciated! thanks
imdadhusen

may route should point action logon not index

routes.maproute(                 "default", // route name                 "{controller}/{action}/{id}", // url parameters                 new { controller = "authentication", action = "logon", id = urlparameter.optional } // parameter defaults             ); 

lg
warappa