US 8,751,614 B2Granted

Providing virtualized visibility through routers

AssigneeTelefonaktiebolaget L M Ericsson (publ)

InventorsWassim Haddad, Joel Halpern

Life of this patent

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Abstract

A method implemented by a network element to track IPv6 addresses of devices in a home network, wherein the network element provides DHCPv6 service to the home network and a home network router on the home network assigns IPv6 address to the devices using a prefix provided by the DHCPv6 service, the method including receiving a DHCPv6 request for a prefix delegation from a home network router, sending a DHCPv6 message including an assigned prefix to the home network router, the DHCPv6 message including a request for notification of configured IPv6 addresses, receiving a first ICMP message from the home network router, including a MAC address and corresponding IPv6 address for a configured device, and sending the home network router a second ICMP message to acknowledge recording the IPv6 address for the configured device, enabling the network element to provide services and forward traffic directly to the configured device.

Claims10

Dependent claims

A method implemented by a network element of an Internet service provider to track Internet Protocol version 6 (IPv6) addresses of devices in a home network, wherein the network element provides dynamic host configuration protocol version 6 (DHCPv6) service to the home network and a home network router on the home network assigns IPv6 address to the devices using a prefix provided by the DHCPv6 service, the method comprising the steps of:

receiving a DHCPv6 request for a prefix delegation, by the network element, from the home network router including an indicator of support for IPv6 address assignment notice requests;
sending a DHCPv6 message including an assigned prefix to the home network router, by the network element, the DHCPv6 message including a request for notification of IPv6 addresses assigned to the devices in the home network;
receiving a first Internet Control Message Protocol (ICMP) message from the home network router, by the network element, the first ICMP message including a media access control (MAC) address and corresponding IPv6 address assigned for a configured device in the home network, the first ICMP message functioning as an IPv6 address assignment notice;
and
sending the home network router a second ICMP message by the network element, the second ICMP message to acknowledge recording the IPv6 address assigned for the configured device, the second ICMP message functioning as an IPv6 address recording acknowledgement message, enabling the network element to provide services and forward traffic directly to the configured device, in the home network.

2 more elements

A network element of an Internet service provider to track Internet Protocol version 6 (IPv6) addresses of devices in a home network, wherein the network element provides dynamic host configuration protocol version 6 (DHCPv6) service to the home network and a home network router on the home network assigns IPv6 address to the devices using a prefix provided by the DHCPv6 service, the network element comprising:

a storage device to store a host IPv6 address table;
a network processor coupled to the storage device, the network processor to execute an Internet Protocol service router to provide data plane services for an Internet service subscriber, the IP service router including a virtual gateway controller to provide the DHCPv6 service to the home network router in the home network, the DHCPv6 service to assign a prefix to the home network router in response to receiving a DHCPv6 request for a prefix delegation from the home network router including an indicator of support for IPv6 address assignment notice requests, wherein the DHCPv6 service sends a DHCPv6 message including the assigned prefix and a request for notification of IPv6 addresses assigned to the devices in the home network, the DHCPv6 service of the virtual gateway to receive a first Internet Control Message Protocol (ICMP) message from the home network router, the first ICMP message including a media access control (MAC) address and corresponding IPv6 address assigned for a configured device in the home network, the first ICMP message functioning as an IPv6 address assignment notice, the virtual gateway to record the IPv6 configuration in the host IPv6 address table and to send the home network router a second ICMP message, the second ICMP message to acknowledge recording the IPv6 address assigned for the configured device, the second ICMP message functioning as an IPv6 address recording acknowledgement message, enabling the IP service router to provide the data plane services to the configured device in the home network.

Dependencies are inferred from the claim text.

Facts

Application: 13/271,047Filed 11 Oct 2011
Published: US 2013/0091254 A111 Apr 2013
Granted: 10 Jun 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

H04L 61/5014
Internet protocol [IP] addresses: using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
H04L 69/16
Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass:…
H04L 2101/659
Details of network addresses: internet protocol version 6 [IPv6] addresses
H04L
Digital communication

Family

US 2013/0091254 A1Pre-grant publication · published 11 Apr 2013
US 8,751,614 B2This patent

From the US filing history. Foreign family members aren’t listed.

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