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. 14, 2025

Filed:

May. 28, 2021
Applicant:

Comcast Cable Communications, Llc, Philadelphia, PA (US);

Inventors:

Charles A. Helfinstine, Wynnewood, PA (US);

Yiu Leung Lee, Philadelphia, PA (US);

Joseph Crowe, Philadelphia, PA (US);

Thomas Modayil Jacob, Wayne, PA (US);

Assignee:

Comcast Cable Communications, LLC, Philadelphia, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); H04L 9/40 (2022.01);
U.S. Cl.
CPC ...
H04L 9/3236 (2013.01); H04L 63/0254 (2013.01); H04L 63/166 (2013.01);
Abstract

An encrypted message comprising a DNS request may be received from a client device. The DNS request may be decrypted to determine an IP address and a port associated with the client device. A security token may be determined based on the IP address and the port. A message comprising an indication of the DNS request and the security token may be sent to a DNS server. A reply comprising a payload and the security token may be received from the DNS server. Based on the security token, an indication of the payload of the reply may be sent to the client device.


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