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:
Jan. 31, 2017
Filed:
Jun. 10, 2014
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Hiroshi Watanabe, Kawasaki, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A server apparatus includes a storage unit to store table data including an IP address and a MAC address of each of information processing apparatuses connected to a network, the IP address and the MAC address being associated with each other in the table data; and a processor to transmit information having one of the IP addresses specified, and to update the table data based on information in a reply for the transmitted information, to determine whether the MAC address being associated with the IP address has been changed since a time-out possibly occurring while receiving or transmitting the information with the information processing apparatus, and to issue a command for freezing the corresponding IP address on use to an IP address assignment apparatus connected to the network if the MAC address has been changed.