×

Auto discovery between proxies in an IPv6 network

  • US 10,361,997 B2
  • Filed: 12/29/2017
  • Issued: 07/23/2019
  • Est. Priority Date: 12/29/2016
  • Status: Active Grant
First Claim
Patent Images

1. A method for proxy auto-discovery in an Internet Protocol version 6 (IPv6) network, the method comprising:

  • a first proxy device intercepting a first IPv6 packet that is sent from a source node to a destination node, wherein the first IPv6 packet includes a Transmission Control Protocol (TCP) connection request;

    the first proxy device adding a first destination options extension header (DOEH) to the first IPv6 packet, wherein the first DOEH is placed between a first fixed header of the first IPv6 packet and a first TCP header of the TCP connection request, and wherein the first DOEH includes at least a first IPv6 address of the first proxy device;

    the first proxy device forwarding the first IPv6 packet toward the destination node;

    the first proxy device monitoring IPv6 packets that are sent from the destination node to the source node;

    the first proxy device intercepting a second IPv6 packet that is sent from the destination node to the source node, wherein the second IPv6 packet includes an acknowledgment of the TCP connection request;

    responsive to detecting that the second IPv6 packet includes a second DOEH, the first proxy device extracting at least a second IPv6 address of a second proxy device from the second DOEH; and

    the first proxy device adding a first entry in a first proxy mapping table that associates a destination IPv6 address of the destination node with the second IPv6 address of the second proxy device.

View all claims
  • 14 Assignments
Timeline View
Assignment View
    ×
    ×