Detection and Prohibition of NAPT for Network User Authentication System "Opengate"

Author

Suenaga, Mitsuhiro ; Otani, Makoto ; Watanabe, Kenzi

Author_Institution

Sci. & Eng., Saga Univ., Saga, Japan

fYear

2011

fDate

Nov. 30 2011-Dec. 2 2011

Firstpage

462

Lastpage

465

Abstract

NAPT is one of the most important technologies for Network. Depletion of IPv4 address made conserving IPv4 address with use of NAPT more important issue. Open gate is a user authentication gateway system for network in the environment opened to public. This system has been operating for controlling the campus-wide open network in Saga University since 2001. On the other hand, nobody can identify that which node of local network has access because of sharing a single global IP address accessed from multiple local IP addresses. Therefore, if public terminals downstream of the NAPT are used incorrectly, it becomes more difficult to specify user. In this research, we have developed a method for detection and prohibition of NAPT under the Opengate.

Keywords

IP networks; LAN interconnection; authorisation; computer network security; local area networks; IPv4 address conservation; IPv4 address depletion; NAPT detection; NAPT prohibition; Opengate system; campus-wide open network; local network; multiple local IP addresses; network user authentication system; public terminal downstream; single global IP address; user authentication gateway system; Artificial intelligence; Collaboration; Gateway; NAPT; Opengate;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Networking and Collaborative Systems (INCoS), 2011 Third International Conference on

Conference_Location

Fukuoka

Print_ISBN

978-1-4577-1908-0

Type

conf

DOI

10.1109/INCoS.2011.73

Filename

6132851