Patent ID: 9331933
Filing Date: 2016-05-03
CPC Classification: H04L

Claim Text:
1. A method of redirecting network traffic from an uncontrolled access network to a controlled access network, the method comprising: receiving, from a first network element, a plurality of Internet Protocol (IP) packets initially routed to an intended destination address on a first destination network element on the uncontrolled access network; re-writing IP packet header information of at least one IP packet based on a service class of the first network element to redirect the at least one IP packet to a destination address differing from the intended destination address; encapsulating, at a first intermediate network device, the at least one IP packet with rewritten IP packet header information; receiving, at a second intermediate network device, the at least one encapsulated IP packet having rewritten IP packet service class header information; performing, based on the rewritten IP packet service class header information and on a route map directive, IP address matching by comparing the rewritten IP packet service class header information to an access control list; and if the rewritten IP packet header information matches an item from the access control list, redirecting the at least one IP packet through an interface tunnel specified in a route map directive to a redirected destination address of a second destination network element, different from the first destination network element, on the controlled access network.