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. 25, 2012
Filed:
Jul. 30, 2009
Berkay Baykal, Westborough, MA (US);
Duane M. Butler, Anoka, MN (US);
Michael W. Conner, Maple Grove, MN (US);
Shaun Noel Missett, Avon, CT (US);
Berkay Baykal, Westborough, MA (US);
Duane M. Butler, Anoka, MN (US);
Michael W. Conner, Maple Grove, MN (US);
Shaun Noel Missett, Avon, CT (US);
Calix, Inc., Petaluma, CA (US);
Abstract
In general, this disclosure describes network security techniques that may accommodate legitimate movement of a subscriber device while preventing MAC collisions that may result from configuration errors or MAC spoofing attempts. MAC spoofing may result in packets directed to one subscriber device being sent instead to another subscriber device. By modifying an access node or a Dynamic Host Configuration Protocol (DHCP) server to allow only authorized subscriber devices on the access network, layer two collisions ('MAC collisions') may be prevented.