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. 13, 2026

Filed:

Jun. 02, 2023
Applicant:

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

Inventors:

Pascal Thubert, Roquefort les Pins, FR;

Pradeep Kumar Kathail, Los Altos, CA (US);

Eric Levy-Abegnoli, Valbonne, FR;

David A. Maluf, Mountain View, CA (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/40 (2022.01); H04L 61/4511 (2022.01);
U.S. Cl.
CPC ...
H04L 63/0407 (2013.01); H04L 61/4511 (2022.05); H04L 63/0236 (2013.01); H04L 63/0428 (2013.01); H04L 2212/00 (2013.01);
Abstract

Techniques for using Locator ID Separation Protocol (LISP), Mobile Internet Protocol (MIP), and/or other techniques in conjunction with Domain Name System (DNS) to obfuscate server-side addresses in data communications. Rather than having DNS provide a client device with an IP address of an endpoint device, such as a server, the DNS instead returns an endpoint identifiers (EID) that is mapped to the client device and at least one routing locator (RLOC) of the endpoint device. In this way, IP addresses of servers are obfuscated by a network mapping of EIDs and RLOCs. The client device may then communicate data packets to the server using the EIDs as the destination address, and a virtual network service that works in conjunction with DNS can encapsulate the data packet with the RLOC using LISP and forward the data packet onto the server.


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