Patents by Inventor Stefan B. Raab

Stefan B. Raab 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).

  • Mobile network operator multihoming and enterprise VPN solution
    Patent number: 8526404
    Abstract: The disclosed embodiments support mobility internal and external to enterprise networks. Service providers provide mobility by providing Home Agent functionality corresponding to each Enterprise network. In this manner, mobility may be provided to Mobile Nodes both internal and external to their enterprise networks. Moreover, data packets may be transmitted by Mobile Nodes to Correspondent Nodes, whether they are within their enterprise network, the Service Provider network, or the Internet.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: September 3, 2013
    Assignee: Cisco Technology, Inc.
    Inventors: Kent K. Leung, Alpesh S. Patel, Naveen Paulkandasamy, Stefan B. Raab
  • Methods and apparatus for mobile IP dynamic home agent allocation
    Patent number: 7587498
    Abstract: In accordance with one aspect of the invention, methods and apparatus for distributing a Mobile IP registration request to one of a plurality of Home Agents are disclosed. A registration request is received from a Foreign Agent to which the Mobile Node has roamed. One of the plurality of Home Agents is selected. The registration request is then forwarded to the selected one of the plurality of Home Agents. The source IP address of the registration request is an IP address of the Foreign Agent to which the Mobile Node has roamed, thereby enabling the selected one of the plurality of Home Agents to send a Mobile IP registration reply directly to the Foreign Agent without interception by the network device.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: September 8, 2009
    Assignee: Cisco Technology, Inc.
    Inventors: Kent K. Leung, Alpesh Patel, Stefan B. Raab
  • Methods and apparatus for mobile IP dynamic home agent allocation
    Publication number: 20040202126
    Abstract: In accordance with one aspect of the invention, methods and apparatus for distributing a Mobile IP registration request to one of a plurality of Home Agents are disclosed. A registration request is received from a Foreign Agent to which the Mobile Node has roamed. One of the plurality of Home Agents is selected. The registration request is then forwarded to the selected one of the plurality of Home Agents. The source IP address of the registration request is an IP address of the Foreign Agent to which the Mobile Node has roamed, thereby enabling the selected one of the plurality of Home Agents to send a Mobile IP registration reply directly to the Foreign Agent without interception by the network device.
    Type: Application
    Filed: May 6, 2002
    Publication date: October 14, 2004
    Applicant: Cisco Technology, Inc.
    Inventors: Kent K. Leung, Alpesh Patel, Stefan B. Raab