Patents by Inventor Olev Kartau

Olev Kartau has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Architecture for routing and IPSec integration
    Patent number: 7647492
    Abstract: The invention is directed towards routing a packet using both IPSec and common routing protocols within dynamic network topologies in a VPN. The routing of IPSec packets employs Open System Interconnection (OSI) layer three information. In one embodiment, a tree mechanism is used for looking up layer three information that may be associated with a protected subnetwork. When a packet is identified as being associated with a protected subnetwork, the packet may be encrypted and encapsulated, including the original destination and source IP address header information within another packet employing the IP Encapsulating Security Payload (ESP) protocol. New source and destination IP addresses are provided for the new packet using IP addresses associated with an entry gateway and an exit gateway to the VPN. The new packet may then be routed through the VPN using traditional routing protocols.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: January 12, 2010
    Assignee: Check Point Software Technologies Inc.
    Inventors: James D. Asnis, Teemu S. Lehtonen, Olev Kartau
  • Architecture for routing and IPSec integration
    Publication number: 20060059370
    Abstract: The invention is directed towards routing a packet using both IPSec and common routing protocols within dynamic network topologies in a VPN. The routing of IPSec packets employs Open System Interconnection (OSI) layer three information. In one embodiment, a tree mechanism is used for looking up layer three information that may be associated with a protected subnetwork. When a packet is identified as being associated with a protected subnetwork, the packet may be encrypted and encapsulated, including the original destination and source IP address header information within another packet employing the IP Encapsulating Security Payload (ESP) protocol. New source and destination IP addresses are provided for the new packet using IP addresses associated with an entry gateway and an exit gateway to the VPN. The new packet may then be routed through the VPN using traditional routing protocols.
    Type: Application
    Filed: September 15, 2004
    Publication date: March 16, 2006
    Inventors: James Asnis, Teemu Lehtonen, Olev Kartau