Patents by Inventor Willliam J. Rippon

Willliam J. Rippon 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).

  • Detecting malicious circumvention of virtual private network
    Patent number: 9185121
    Abstract: An embodiment directed to a method is associated with a VPN that may be used to access resource servers. Upon determining that the VPN has been accessed by a specified client, resource servers are identified, which each has an address and may receive traffic routed from the client through the VPN. The method further comprises sending a message corresponding to each identified resource server to the client, wherein the message to corresponding to a given one of the identified resources is intended to cause a response to be sent from the client to the address of the given identified resource server. Responses to respective messages sent to the client are used to determine whether a route for traffic from the client to the VPN has been compromised.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: November 10, 2015
    Assignee: International Business Machines Corporation
    Inventors: Suresh N. Chari, Josyula R. Rao, Willliam J. Rippon, Wilfried Teiken, Wietse Z. Venema
  • DETECTING MALICIOUS CIRCUMVENTION OF VIRTUAL PRIVATE NETWORK
    Publication number: 20150188931
    Abstract: An embodiment directed to a method is associated with a VPN that may be used to access resource servers. Upon determining that the VPN has been accessed by a specified client, resource servers are identified, which each has an address and may receive traffic routed from the client through the VPN. The method further comprises sending a message corresponding to each identified resource server to the client, wherein the message to corresponding to a given one of the identified resources is intended to cause a response to be sent from the client to the address of the given identified resource server. Responses to respective messages sent to the client are used to determine whether a route for traffic from the client to the VPN has been compromised.
    Type: Application
    Filed: December 31, 2013
    Publication date: July 2, 2015
    Applicant: International Business Machines Corporation
    Inventors: Suresh N. Chari, Josyula R. Rao, Willliam J. Rippon, Wilfried Teiken, Wietse Z. Venema