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:
Apr. 18, 2006
Filed:
Apr. 30, 2001
Applicants:
Tatsuhiro Ando, Kawasaki, JP;
Toshiyuki Kamo, Kawasaki, JP;
Inventors:
Tatsuhiro Ando, Kawasaki, JP;
Toshiyuki Kamo, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a router provided on a boundary between the Internet and an intranet and used for receiving an incoming first packet and then passing on the first packet to a destination router indicated by a destination address of the first packet, the router includes a decapsulation unit for carrying out a process of decapsulating the first packet into a second packet in the case of a predetermined address specified in the first packet as the destination address, and a first judgment unit for forming a judgment as to whether or not a user transmitting the first packet is an authorized user.