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Virtual network protocol

  • US 9,740,516 B1
  • Filed: 09/10/2015
  • Issued: 08/22/2017
  • Est. Priority Date: 01/13/2011
  • Status: Active Grant
First Claim
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1. A method comprising:

  • in a user process space of a host operating system operating on a given host machine, wherein the host operating system hosts one or more distinct virtual machines each being a hardware virtualization, performing the following steps;

    receiving, in one or more processes running in the user process space, an outgoing packet from a source virtual machine (VM) of the one or more distinct virtual machines, the outgoing packet destined for a destination VM;

    obtaining, in the one or more processes running in the user process space, a source secret key for the source VM, the source secret key not being known by the destination VM;

    determining, in the one or more processes running in the user process space, a destination key based on a network address of the destination VM, where the destination secret key is not known by the source VM;

    obtaining, in the one or more processes running the user process space, a token derived at least partly from the source secret key and the destination secret key;

    encapsulating, in the one or more processes running the user process space, the outgoing packet in a second packet along with the token; and

    transmitting, through one or more processes running in a kernel process space of the host operating system, the second packet to the destination VM.

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