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. 21, 2014
Filed:
Apr. 29, 2011
Ralph E. Droms, Westford, MA (US);
Madhu Sudan, San Jose, CA (US);
Sanjeev Hemantkumar Desai, Saratoga, CA (US);
John T. Chapman, Saratoga, CA (US);
Raman S. Krishnan, Cupertino, CA (US);
Ralph E. Droms, Westford, MA (US);
Madhu Sudan, San Jose, CA (US);
Sanjeev Hemantkumar Desai, Saratoga, CA (US);
John T. Chapman, Saratoga, CA (US);
Raman S. Krishnan, Cupertino, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
An apparatus may include a port to receive a ranging request from a cable modem and a processor in communication with the port. The processor may assign a service identifier to the cable modem, match the service identifier with a link layer address of the cable modem, receive a router advertisement and comparing the source link layer address from the router advertisement to the link layer address of the cable modem, and determine if the link layer address of the cable modem is the same as the source link layer address.