Patent ID: 9009327
Filing Date: 2015-04-14
Classification: H04L

Abstract:
1. A method of maintaining a user's intranet internet protocol address upon failover of a client's secure socket layer virtual private network (SSL VPN) session from a first appliance to a second appliance, the method comprising the steps of: (a) receiving, by a second appliance, information from a first appliance, the information identifying one or more intranet internet protocol addresses assigned to a first user for accessing a network via a first secure socket layer virtual private network (SSL VPN) session provided by the first appliance, each of the one or more intranet internet protocol addresses of the first user is independent from an internet protocol address assigned to a device operated by the first user; (b) detecting, by the second appliance, that the first appliance is unavailable to provide the first SSL VPN session to the network, and providing, by the second appliance, SSL VPN connectivity to the network in response to the detection; (c) receiving, by the second appliance, a request from the client operated by the first user to establish a second SSL VPN session with the network; and (d) assigning, by the second appliance, to the first user a first intranet internet protocol address previously assigned to the first user from the one or more intranet internet protocol addresses as an internet protocol address on the network.