One of the pieces of information displayed is the IP number of the computer from which you are working. In this instance one uses the exact and full IP number for the computer which can access the page.
Access is denied.
Access is denied. Furthermore, the user will not be able to use the 'Back' button to try to return to the private page either. One can also allow only IP numbers containing a certain sequence of numbers to access a page. This would allow users at a particular location, but perhaps working from different computers to gain access to the web page. Access is denied.