In my production server when I am hitting the url ".../sites/en/Pages" I get an 401 error access denied error. Though I have all the permission in Pages library. Now in my staging server which is identical to production when I hit the url ".../sites/en/Pages" I get redirected to ".../sites/en/Pages/default.aspx" and the home page opens fine. I would like to know from where this redirecting or configuration changes is happening which append default.aspx in the URL in staging. What is there in my staging site which I required to do in my production server?
Environment: SharePoint 2007