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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.

Patent No.:

US 12047304 B1

PDFFull Text
Date of Patent:
Jul. 23, 2024

Filed:

Sep. 13, 2022

Distributed network address translation for efficient cloud service access

Applicant:

Nicira, Inc., Palo Alto, CA (US);

Inventor:

Jun Xiao, Beijing, CN;

Assignee:

Nicira, Inc., Palo Alto, CA (US);

Attorney:

Quarles & Brady LLP

Primary Examiner:

Thu V Nguyen

Assistant Examiner:

Ranjan undefined Pant

Int. Cl.
CPC ...
H04L 47/70 (2022.01); G06F 9/455 (2018.01); H04L 61/103 (2022.01); H04L 61/2514 (2022.01); H04L 61/2517 (2022.01); H04L 61/2521 (2022.01); H04L 61/2557 (2022.01); H04L 67/10 (2022.01); H04L 67/14 (2022.01); H04L 67/56 (2022.01); H04L 67/564 (2022.01);
U.S. Cl.
CPC ...
H04L 47/70 (2013.01); G06F 9/45558 (2013.01); H04L 61/2532 (2013.01); H04L 61/2557 (2013.01); H04L 67/10 (2013.01); H04L 67/14 (2013.01); H04L 67/56 (2022.05); H04L 67/564 (2022.05); G06F 2009/45595 (2013.01); H04L 61/103 (2013.01); H04L 61/2514 (2013.01); H04L 61/2517 (2013.01);
Abstract

A method for coordinating distributed network address translation (NAT) in a network within which several logical networks are implemented. The logical networks include several tenant logical networks and at least one service logical network that include service virtual machines (VMs) that are accessed by VMs of the tenant logical networks. The method defines a group of replacement IP address and port number pairs. Each pair is used to uniquely identify a VM across all tenant logical networks. The method sends to at least one host that is hosting a VM of a particular tenant logical network, a set of replacement IP address and port number pairs. Each replacement IP address and port number pair can be used by the host to replace a source IP address and a source port number in a packet that is destined from the particular VM to a VM of the particular service logical network.

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