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:
May. 20, 2008
Filed:
Oct. 29, 2002
John Bazzinotti, Norwood, MA (US);
Peter Scott Davis, Wakefield, MA (US);
Kenneth John Wante, Bellingham, MA (US);
Timothy Steven Champagne, South Attleborough, MA (US);
Dany J. Rochefort, Norfolk, MA (US);
John Bazzinotti, Norwood, MA (US);
Peter Scott Davis, Wakefield, MA (US);
Kenneth John Wante, Bellingham, MA (US);
Timothy Steven Champagne, South Attleborough, MA (US);
Dany J. Rochefort, Norfolk, MA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
In a virtual private network, a plurality of concentrators form an interface to provide client/remote site access to a private network over a public network. The plurality of concentrators are grouped into a virtual cluster. Each concentrator in the virtual cluster has an IP address and the virtual cluster has a virtual IP address. In operation, one of the plurality of concentrators assumes the virtual IP address and acts as the master device in the cluster. When a client attempts a connection to the private network, the client addresses an initial request to the virtual IP address. The master device responds to the client request by transmitting to the client the IP address of a concentrator in the cluster selected to handle the connection.