This paper deals with a fundamental study for 'Tonhobeondo統戶番圖-making' of Hanseongbu(modern Seoul) before the Japanese colonial period. 'Tonhobeondo統戶番圖 -making' will be accomplished through analysis on Kwangmu-census光武戶籍as a map of address-system in the Joseon period. It is possible to consider the urban changes of Hanseongbu(modern Seoul) because of 'Tonhobeondo統戶番圖' reflects a urban situation from the 1897 to 1906. At present, an address-system of Korea was made by the cadastral survey in the 1914. By the way, new address-system was a completely different from traditional address-system of Joseon period. Consequently, different two address-system caused a lot of difficulties the study on the urban changes. For such a reason 'Tonhobeondo統戶 番圖-making' is very important. If 'Tonhobeondo統戶番圖-making' would be accomplished, it will be used by a field of urban, architectural and historical science study besides.

IPv6 is a new version of IP which is designed to be an evolutionary step from IPv4. It is a natural increment to IPv4. It can be installed as a normal software upgrade in internet devices and is interoperable with the current IPv4. and Ubiquitous is commerce done in anyway, anywhere, anytime, and in every aspect. Since the ubiquitous service is not yet implemented but under development. IPv6 is a new version of IP which is designed to be an evolutionary step from IPv4. This paper describes the concept and classification of IPv6 and compares it with IPv4. IPv6 is a new version of the Internet protocol, designed as the successor to IPv4. This paper suggests critical success factors of IPv6 for ubiquitous.