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:
Dec. 04, 2007
Filed:
Jan. 13, 2003
Applicants:
Tsunemasa Hayashi, Kanagawa, JP;
Atsushi Takahara, Kanagawa, JP;
Takako Sato, Chiba, JP;
Daisuke Ando, Chiba, JP;
Inventors:
Tsunemasa Hayashi, Kanagawa, JP;
Atsushi Takahara, Kanagawa, JP;
Takako Sato, Chiba, JP;
Daisuke Ando, Chiba, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 3/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
In order to make the client host capable of learning an accounting information or an authentication failure information, the accounting information or the authentication failure reason is notified from the routing deviceto the client host, by adding an information regarding the accounting or an information regarding a reason for the authentication failure of the client host, to a packet of a protocol based on IGMP or MLD which is a multicast control packet between the client hostand the router device