Patent ID: 9246809
Filing Date: 2016-01-26
CPC Classification: H04L

Claim Text:
1. A method, comprising: snooping, at an edge router of a local computer network, a dynamic host configuration protocol (DHCP) message used to provision client-server protocol configuration information of a customer-premises equipment (CPE) device; identifying at the edge router, from the snooping, an Internet Protocol version 6 (IPv6) transition option in place at the CPE device along with associated configuration parameters for the IPv6 transition option that are identified in the DHCP message, wherein the IPv6 transition option is IPv6 Rapid Deployment (6rd), IPv4 Residual Deployment encapsulation (4rd-e), dual stateless IPv4/IPv6 translation (dIVI), lightweight address family transition for IPv6 (laft6), or 4rd translation (4rd-t); determining, by the edge router, whether advertising the snooped IPv6 transition option and associated configuration parameters to one or more border or relay routers would be redundant with one or more IPv6 transition options and corresponding configurations already supported by the one or more border or relay routers; advertising, by the edge router based on a determination that advertising the snooped IPv6 transition option and associated configuration parameters would not be redundant with one or more IPv6 transition options and corresponding configurations already supported by the one or more border or relay routers, the IPv6 transition option along with associated configuration parameters to the one or more border or relay routers of the local computer network to cause the one or more border or relay routers to automatically configure themselves to support the IPv6 transition option and associated configuration parameters upon receiving the advertised IPv6 transition option from the edge router, wherein the one or more border or relay routers link the local computer network to a global network; and preventing, by the edge router based on a determination that advertising the snooped IPv6 transition option and associated configuration parameters would be redundant with one or more IPv6 transition options and corresponding configurations already supported by the one or more border or relay routers, advertisement of the snooped IPv6 transition option and associated configuration parameters to the one or more border or relay routers.