Dynamic system and method for virtual private network (VPN) packet level routing using dual-NAT method
US7840701B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2007 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Oct 26, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/164
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.