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:
Aug. 02, 2022
Filed:
Apr. 16, 2019
Applicant:
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Inventors:
Daiki Chiba, Musashino, JP;
Mitsuaki Akiyama, Musashino, JP;
Assignee:
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 13/00 (2006.01); H04L 61/5007 (2022.01); H04L 61/4511 (2022.01); H04L 101/604 (2022.01); H04L 101/695 (2022.01);
U.S. Cl.
CPC ...
H04L 61/2007 (2013.01); H04L 61/1511 (2013.01); H04L 61/6004 (2013.01); H04L 61/6095 (2013.01);
Abstract
An identification device specifies a boundary which divides rows of IP addresses, which are included in an IP address block and sorted in a predetermined order, into a plurality of parts based on AS numbers, e2LDs, PTR records, etc. of the IP addresses. When the number of the IP addresses included in the part divided by the boundary is equal to or more than a parameter N, which can be arbitrarily set, an identification unit identifies the IP addresses included in the part as dynamic IP addresses.