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. 02, 2024

Filed:

Jul. 06, 2021
Applicant:

Cisco Technology, Inc., San Jose, CA (US);

Inventors:

Pascal Thubert, Roquefort les Pins, FR;

Amine Choukir, Lausanne, CH;

Domenico Ficara, Essertines-sur-Yverdon, CH;

Eric M. Levy-Abegnoli, Valbonne, FR;

Bhavik Fajalia, Bangalore, IN;

Gokul Bhoothanathan Kailasanatha Subramania, Bengaluru, IN;

Assignee:

Cisco Technology, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/46 (2006.01); H04L 67/563 (2022.01);
U.S. Cl.
CPC ...
H04L 12/4633 (2013.01); H04L 12/4641 (2013.01); H04L 67/563 (2022.05);
Abstract

A method includes receiving, at a home controller of a home domain and from a first device in the home domain, a first message concerning a user device that is anchored to the home domain and that has roamed from the home domain to a visitor domain. The method also includes, in response to determining that the first device is a router, opening a tunnel between the home controller and a visitor controller of the visitor domain and communicating the first message to the user device through the tunnel. The method further includes receiving, at the home controller and from a second device in the home domain, a second message concerning the user device and in response to determining that the second device is not a router, communicating, to the second device, a proxy response to the second message.


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