Novell, Inc.

Oracle International Corporation

Chendil Kumar

Gautham Chambrakana Ananda

Vishnu Govind Attur

Allu Babula

Premkumar Jothimani

Techniques for secure transparent switching between modes of a virtual private network (VPN) are provided. A principal, via a client, establishes a VPN session in a first mode of operation with a server. The principal subsequently requests a second mode of operation during the same VPN session. The VPN session is transparently transitioned to the second mode of operation without any interaction being required on the part of the principal and without terminating the original VPN session.

Techniques for secure transparent switching between modes of a virtual private network (VPN)

Techniques for high availability of virtual private networks (VPN's) are provided. VPN gateways are organized as a virtual ring of VPN gateways. A client seeking to establish VPN communications with a destination resource is assigned one of the VPN gateways as a primary gateway and one VPN gateway as a secondary gateway. When a client's primary fails, the client seamless transitions to its designated secondary and the VPN gateways reconfigure themselves to account for the primary's failure.

Techniques for high availability of virtual private networks (VPN's)

Apparatus, systems, and methods may operate to establish a virtual private network (VPN) connection between a server in a private network and a client in a public network. Additional activities include intercepting a socket call from the client requesting resolution of a network address associated with a domain name in the private network, searching a local linked list for the network address, returning the network address to the client if the network address is found in the local linked list, and, if the network address is not found in the local linked list, sending a request to resolve the network address to a domain name system (DNS) server in the private network. Additional apparatus, systems, and methods are disclosed.

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Bengaluru, India

Chendil Kumar