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.

Date of Patent:
Apr. 18, 2017

Filed:

Jun. 22, 2015
Applicant:

Cisco Technology, Inc., San Jose, CA (US);

Inventors:

Peter Zhu, Cupertino, CA (US);

Ashok Thirunarayanan, San Jose, CA (US);

Assignee:

Cisco Technology, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 29/08 (2006.01); H04L 29/12 (2006.01); G06F 17/30 (2006.01);
U.S. Cl.
CPC ...
H04L 63/0236 (2013.01); G06F 17/30289 (2013.01); G06F 17/30914 (2013.01); H04L 61/1511 (2013.01); H04L 61/2007 (2013.01); H04L 69/22 (2013.01); H04L 69/329 (2013.01);
Abstract

At a network device through which client devices communicate with a network, a database is created that maps Internet Protocol (IP) addresses each to a respective trust metric for a domain name associated with the IP address. An IP packet sent from a client device to the network and that indicates a destination IP address for a network-accessible resource associated with a domain name is intercepted. Using the destination IP address in the intercepted IP packet, the domain name trust metric mapped to the destination IP address is retrieved from the database. IP packets received from the destination IP address are processed based on the retrieved domain name trust metric and a predetermined trust metric criterion.


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