High availability (HA) internet protocol security (IPSEC) virtual private network (VPN) client
US10506082B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2017 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | Dec 26, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods for providing an HA IPsec VPN client. According to one embodiment, an IPsec tunnel is established by a client with a VPN gateway through a first interface. An IP address of the first interface is bound as the local endpoint of the tunnel and the IP address of the VPN gateway is bound as the remote endpoint of the tunnel. Responsive to detection by the client that a second interface of the client machine has been selected to serve as the local endpoint, an IP address of the second interface is bound as the local endpoint. An IP packet is transmitted by the client machine to the VPN gateway by generating an ESP packet including an encrypted form of the IP packet and encapsulating the ESP packet with an outer IP header including the IP address of the second interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.