Patent ID: 7568220
Filing Date: 2009-07-28
Classification: H04L,H04W

Abstract:
1. A method for connecting a user computer to a virtual private network (VPN) on a first computer network via a second computer network, the method comprising: providing in the user computer a limited-functionality authorization client; automatically transmitting a connection request to the VPN by the user computer, via the second computer network; responsively to a success of said connection request, automatically sending a predefined response message by the VPN to the user computer; responsively to receiving said predefined response message by the user computer, automatically establishing a connection between the user computer and the VPN via the second computer network; responsively to a failure of said connection request, automatically terminating said automatically transmitting a connection request to the VPN; responsively to a failure of said receiving said predefined response message by the user computer, automatically terminating said automatically transmitting a connection request to the VPN; responsively to said automatically terminating, automatically soliciting the second computer network to authorize the user computer via said limited-functionality authorization client; and upon authorization by the second computer network, establishing a connection between the user computer and the VPN via the second computer network, wherein automatically soliciting the second computer network comprises, upon failure of said connection request, invoking said authorization client for authorizing the user computer in the second computer network.