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:
Oct. 08, 2013
Filed:
Dec. 22, 2009
Kathryn DE Graaf, Northboro, MA (US);
John Liddy, Gardner, MA (US);
Paul Raison, Windham, NH (US);
John C. Scano, Dracut, MA (US);
Sanjay Wadhwa, Acton, MA (US);
Kathryn De Graaf, Northboro, MA (US);
John Liddy, Gardner, MA (US);
Paul Raison, Windham, NH (US);
John C. Scano, Dracut, MA (US);
Sanjay Wadhwa, Acton, MA (US);
Juniper Networks, Inc., Sunnyvale, CA (US);
Abstract
A method performed by a Dynamic Host Configuration Protocol (DHCP) server comprising receiving a DHCP DISCOVER message from a DHCP client; generating a challenge in response to the DHCP DISCOVER message; sending the challenge to an authentication device; receiving a first challenge response from the authentication device; generating a DHCP OFFER message; sending the challenge to the DHCP client in the DHCP OFFER message; receiving a DHCP REQUEST message that includes a second challenge response from the DHCP client; comparing the first challenge response with the second challenge response; and authenticating the DHCP client when the first challenge response and the second challenge response match.