In network system includes a plurality of network devices interconnected with each other through a network, one or more network devices including a first network device have a plurality of functions. The network devices can deliver function-categorized web pages respectively corresponding to one or more functions. A second network device requests the one or more network devices for the location data which is necessary for accessing the function-categorized web pages corresponding to a user-designated function. The one or more network devices transmits the location data of the function-categorized web page, which each network device can deliver, corresponding to the user-designated function to the second network device in response to the request. The second network device collects the transmitted location data, and creates an access web page based on the collected location data. The access web page includes hyperlinks to the function-categorized web pages corresponding to the user-designated function.