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. 29, 2011
Filed:
Aug. 09, 2004
Craig Allen Huegen, Bartelso, IL (US);
Ellis Roland Dobbins, San Jose, CA (US);
Ian Foo, Raleigh, NC (US);
Robert Eric Gleichauf, San Antonio, TX (US);
Craig Allen Huegen, Bartelso, IL (US);
Ellis Roland Dobbins, San Jose, CA (US);
Ian Foo, Raleigh, NC (US);
Robert Eric Gleichauf, San Antonio, TX (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Link layer authentication information is supplied by a link layer authentication device to an access router for tracking IP address usage by a client device. The authentication information supplied to the access router includes an authenticated client identifier and a corresponding authenticated link identifier for the client device that attached to the network based on the authenticated link identifier. The access router, in response to receiving a message that specifies the authenticated link identifier and a source IP address, adds the source IP address to a cache entry that specifies the authenticated client identifier and the corresponding authenticated link identifier, and outputs to an audit resource a record that specifies the source IP address and the authenticated link identifier.