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. 31, 2023
Filed:
Sep. 19, 2020
Huawei Technologies Co., Ltd., Shenzhen, CN;
Yuchen Wang, Beijing, CN;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
This application discloses a method and an apparatus for defending against a network attack, to resolve a problem that network defense costs are relatively high. The method includes: a network security device receives a first packet sent by an external device, and matches a destination IP address of the first packet with configuration information of a fake network. If an IP address of a node in the configuration information of the fake network has a same subnet prefix as the destination IP address, the network security device processes the first packet based on a fake network policy; if no IP address of a node in the configuration information of the fake network has a same subnet prefix as the destination IP address, the network security device processes the first packet based on a firewall policy.