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:
Mar. 15, 2011
Filed:
Sep. 29, 2006
Bakul Khanna, Lexington, MA (US);
John Chao, Belmont, MA (US);
Ramasamy Jesuraj, Westford, MA (US);
Robert Lee, Lexington, MA (US);
Bakul Khanna, Lexington, MA (US);
John Chao, Belmont, MA (US);
Ramasamy Jesuraj, Westford, MA (US);
Robert Lee, Lexington, MA (US);
Avaya, Inc., Basking Ridge, NJ (US);
Abstract
Customer Edge (CE) network elements can automatically learn IPSec tunnel endpoints for other CEs connected to sites in a Virtual Private Network (VPN) so that manual configuration of IPSec tunnel endpoints is not required and so that a centralized database of IPSec tunnel endpoints is not required to be separately maintained. According to an embodiment of the invention, a BGP export route policy is set on all CEs, so that when they announce their VPN routes in the standard format, the application of this export route policy changes the announcement to replace the BGP peering point address that would ordinarily be advertised with the IPSec tunnel endpoint address. When any given site receives a VPN route update formatted in this manner, it processes the VPN route update and learns from the update the IPSec tunnel endpoint as well as the associated VPN routes.