Electrical computers and digital processing systems: multicomput – Computer-to-computer data routing
Reexamination Certificate
2007-02-21
2010-11-23
Flynn, Nathan (Department: 2454)
Electrical computers and digital processing systems: multicomput
Computer-to-computer data routing
C709S245000, C370S401000
Reexamination Certificate
active
07840701
ABSTRACT:
A system and method for virtual private network (VPN) packet level routing using a Dual-NAT architecture to provide a bi-directional secure connection between applications, hosts, or networks at any two end sites without exposing each other's actual IP addresses and network topologies. The method includes providing a client a list of available resources on a remote network; initiating a request by the client for at least one resource from the list of available remote resources as though the at least one resource is local to the client; NATting the source and destination IP addresses to a pair of client and resource Dynamic VPN (DVPN) addresses; routing the request to the remote network; NATting the client and resource DVPN addresses to local IP addresses on the remote network; issuing the request to the at least resource; and NATting/routing the response using the reverse process.
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Chai Zhuoyuan
Hsu Nai-Ting
Hsu Pu-Chau
Yen Leemay
Zhang Junzheng
Array Networks, Inc.
Buchanan & Ingersoll & Rooney PC
Conaway James E
Flynn Nathan
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