The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 15, 2009
Filed:
Nov. 22, 2005
Rajiv Asati, Morrisville, NC (US);
Mohamed Khalid, Cary, NC (US);
Haseeb Niazi, Morrisville, NC (US);
Vijay Bollapragada, Cary, NC (US);
Rajiv Asati, Morrisville, NC (US);
Mohamed Khalid, Cary, NC (US);
Haseeb Niazi, Morrisville, NC (US);
Vijay Bollapragada, Cary, NC (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A method, apparatus and computer program product for providing an encrypted multipoint Virtual Private Network (VPN) service is presented. A first packet of a plurality of packets is received at an ingress provider edge (PE) the plurality of packets destined for a remote server in communication with said egress PE router. A lookup for a destination prefix of a first packet is preformed, and a determination made that a next-hop for the first packet is reachable through a mGRE tunnel. A resolution request is sent to a hub to acquire a routable IP address. The packets sent to the hub are encapsulated, and encrypting until a resolution reply is received and until security associations (SAs) have been exchanged. Then a VPN is established between the ingress and egress PEs and is used for all subsequent packets.