Proxyless protocol

US11533372B2 · kind B2 · utility

Assignee

• Google LLC · US

Inventors

• Sonny Ben-Shimon · Tel Aviv-Yafo, IL
• Uri Goren · Haifa, IL
• Daniel Berkovitch · Bound Brook Junction, US
• Ittai Balaban · Mishmarot, IL
• Alok Kumar · Supaul, IN
• Parveen Patel · Redmond, US
• Pierre-Emmanuel Ettori · Sunnyvale, US
• Anshuman Gupta · Mountain View, US
• Idan Brown · Mountain View, US
• Noam Lampert · Tel Aviv-Yafo, IL

Key dates

• Filing date: Mar 31, 2021
• Grant date: Dec 20, 2022
• Expiry date: Mar 31, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L69/326
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

A method for a proxyless protocol includes intercepting, from a client, a first Transmission Control Protocol (TCP) connection request requesting to establish a TCP connection between the client and a proxy for routing data to a destination server. The request includes client information and a first sequence number. The method also includes transmitting, to the destination server, a second TCP connection request to establish a TCP connection between the client and the destination server. The second request includes a second sequence number less than the first sequence number. The method also includes intercepting, from the destination server, an acknowledgment message indicating acknowledgment of the second TCP connection request. The method also includes transmitting, to the destination server, a proxy protocol header message with the client information. The method also includes generating a new acknowledgment message using the first TCP connection request and transmitting, to the client, the new acknowledgment message.