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:
Feb. 04, 2025
Filed:
Apr. 28, 2022
Huawei Technologies Co., Ltd., Shenzhen, CN;
Shiguang Li, Beijing, CN;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
A packet processing method. A protection device receives a first access request packet. The first access request packet includes a packet sent based on a TCP/IP protocol. The protection device extracts a first fingerprint feature from a transport-layer packet header and/or a network-layer packet header of the first access request packet. The first fingerprint feature corresponds to an operating system type of a terminal device that transmits the first access request packet. The protection device recognizes the first fingerprint feature based on a fingerprint feature database to determine whether to allow the first access request packet to access a server. The protection device allows the first access request packet to pass through when the first access request packet is allowed to access the server. The protection device blocks the first access request packet when the first access request packet is not allowed to access the server.