Patents by Inventor Anil Takkallapalli

Anil Takkallapalli 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).

  • Method and apparatus for providing adaptive VPN to enable different security levels in virtual private networks (VPNs)
    Patent number: 7478427
    Abstract: A method and apparatus for providing at least two virtual private network VPN tunnels from a client device in a VPN network having an enterprise gateway and a network VPN gateway. The method and apparatus includes a client device having an Internet Key Exchange (IKE) module for establishing the at least two tunnels using an IKE protocol wherein a first tunnel is an end-to-end VPN tunnel to the enterprise gateway, and a second tunnel is a network-based tunnel to the network VPN gateway. An IPsec Network Driver Interface interfaces with the IKE module, which includes a security authentication database (SADB) that stores downloaded enterprise security policies respectively for each of the at least two tunnels. A routing table stores IP addresses of local presences and hosts respectively associated with the at least two tunnels, whereby packets are routed over the at least two tunnels based on the downloaded policies.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: January 13, 2009
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Sarit Mukherjee, Sanjoy Paul, Sampath Rangarajan, Anil Takkallapalli
  • Method and apparatus for providing adaptive VPN to enable different security levels in virtual private networks (VPNs)
    Publication number: 20040225895
    Abstract: A method and apparatus for providing at least two virtual private network VPN tunnels from a client device in a VPN network having an enterprise gateway and a network VPN gateway. The method and apparatus includes a client device having an Internet Key Exchange (IKE) module for establishing the at least two tunnels using an IKE protocol wherein a first tunnel is an end-to-end VPN tunnel to the enterprise gateway, and a second tunnel is a network-based tunnel to the network VPN gateway. An IPsec Network Driver Interface interfaces with the IKE module, which includes a security authentication database (SADB) that stores downloaded enterprise security policies respectively for each of the at least two tunnels. A routing table stores IP addresses of local presences and hosts respectively associated with the at least two tunnels, whereby packets are routed over the at least two tunnels based on the downloaded policies.
    Type: Application
    Filed: May 5, 2003
    Publication date: November 11, 2004
    Applicant: LUCENT TECHNOLOGIES INC.
    Inventors: Sarit Mukherjee, Sanjoy Paul, Sampath Rangarajan, Anil Takkallapalli