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:
Jul. 24, 2018
Filed:
Feb. 05, 2016
Sangfor Technologies Company Limited, Shenzhen, CN;
Zhiliang Zhang, Shenzhen, CN;
Jingbo Liang, Shenzhen, CN;
SANGFOR TECHNOLOGIES INC., Shenzhen, CN;
Abstract
A communication method includes automatically sending a DHCP discovery request to a DHCP server after power on; receiving network configuration parameters assigned by the DHCP server responding to the DHCP discovery request; and sending a predefined domain name query request for a predefined domain name according to a network address of a DNS server included in the network configuration parameters. The domain name query request passes through a wireless controller. The method also includes, after the wireless controller intercepts the predefined domain name query request by monitoring domain name query requests passing through the wireless controller, receiving a simulated domain name query reply packet from the wireless controller responding to the predefined domain name query, wherein the domain name query reply packet includes a predefined network address corresponding to the predefined domain name; and communicating with the wireless controller according to the predefined network address.