The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 26, 2013
Filed:
Sep. 06, 2011
Kazuaki Tsuchiya, Yokohama, JP;
Naoya Ikeda, Ebina, JP;
Shinichi Hamamoto, Yamato, JP;
Ken Watanabe, Kawasaki, JP;
Toshikazu Yasue, Chigasaki, JP;
Yoshifumi Atarashi, Zama, JP;
Munechika Sumikawa, Hadano, JP;
Takahisa Miyamoto, Kawasaki, JP;
Hidemitsu Higuchi, Yokohama, JP;
Kazuaki Tsuchiya, Yokohama, JP;
Naoya Ikeda, Ebina, JP;
Shinichi Hamamoto, Yamato, JP;
Ken Watanabe, Kawasaki, JP;
Toshikazu Yasue, Chigasaki, JP;
Yoshifumi Atarashi, Zama, JP;
Munechika Sumikawa, Hadano, JP;
Takahisa Miyamoto, Kawasaki, JP;
Hidemitsu Higuchi, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In an apparatus, there are provided an IP transmitting and receiving unit for transmitting and receiving an IPv4 packet and an IPv6 packet; an IP header converting unit for performing a mutual conversion of the IPv4 packet and the IPv6 packet by an IP header conversion; a DNS substituting unit for receiving a domain information capturing request sent from an IPv4 terminal or an IPv6 terminal and substituting its process; an IPv4 address capturing unit for capturing an IPv4 address from a DHCP server; and an IP address conversion information holding unit for holding an IPv6 address of the IPv6 terminal and the IPv4 address captured by the IPv4 address capturing unit in correspondence to each other. Thus, a communication with the IPv4 terminal can be executed without preliminarily fixedly allocating the IPv4 address to the IPv6 terminal.