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:
Aug. 30, 2022
Filed:
Jan. 11, 2018
Nicira, Inc., Palo Alto, CA (US);
Sushruth Gopal, Palo Alto, CA (US);
Jayant Jain, Palo Alto, CA (US);
Subrahmanyam Manuguri, San Jose, CA (US);
Anirban Sengupta, Palo Alto, CA (US);
Deepa Kalani, Fremont, CA (US);
Alok Tiagi, Palo Alto, CA (US);
Sushil Singh, Los Altos, CA (US);
NICIRA, INC., Palo Alto, CA (US);
Abstract
The method for implementing mechanisms for Layer 7 context accumulation for enforcing Layers 4, 7, and verb-based rules is presented. The method comprises: receiving stream data, and identifying a packet in the stream. If the packet includes Layer 7 headers: for each Layer 7 header: determining content of the packet identified by a Layer 7 header's identifier; and parsing the content to extract firewall input data. If one or more rules at least partially match the firewall input data, determining that a particular rule also includes additional information that cannot be found in the firewall input data; performing a DPI on the content to determine whether at least a portion of the additional information is found in the content; extracting additional input data from the content and adding it to the firewall input data; and applying the rules to the firewall input data to process the packet.