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:
Jan. 27, 2026

Filed:

Nov. 20, 2023
Applicant:

Centurylink Intellectual Property Llc, Broomfield, CO (US);

Inventors:

Asghar Hussain, McLean, VA (US);

Pavan Rampalli, Englewood, CO (US);

Zubin Ingah, Centennial, CO (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/40 (2022.01);
U.S. Cl.
CPC ...
H04L 63/0272 (2013.01); H04L 63/029 (2013.01); H04L 63/20 (2013.01);
Abstract

This disclosure describes systems, methods, and devices related to managing Internet Protocol Security (IPsec) for virtual private network (VPN) concentrators. A method may include: identifying, by an edge gateway backend system, a first IPsec tunnel, a second IPsec tunnel, and a third IPsec tunnel between a VPN client and a VPN concentrator of the edge gateway backend system; determining, by the edge gateway backend system, that the first IPsec tunnel is a highest priority tunnel between the VPN client and the VPN concentrator; determining, by the edge gateway backend system, that the highest priority tunnel between the VPN client and the VPN concentrator is active; and deactivating, by the edge gateway backend system, fully qualified domain names of the second IPsec tunnel and the third IPsec tunnel from the VPN concentrator based on the determination that the highest priority tunnel between the VPN client and the VPN concentrator is active.


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