Patents by Inventor Andrew Mark Gutman

Andrew Mark Gutman 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).

  • Integration of authentication authorization and accounting service and proxy service
    Patent number: 6298383
    Abstract: A single database maintained centrally hosts both proxy service data and authentication, authorization and accounting (AAA) data. Data is then copied to storage used locally by each system when both systems are instantiated. Therefore the ISP/Telco need not maintain two different data bases. A protocol gateway (PGW) is used to determine if the incoming user is a wholesale or retail user. The PGW filters the domain portion of the access request to locate a remote AAA service. If one such service is found, the PGW routes the communication via the proxy service to proxy it to the remote AAA service. The returned packet from the remote AAA service is then searched for an IP address to be assigned to the incoming user. If one is not found the PGW obtains a dynamically allocated IP address from a DHCP server (using an IP-Pool-ID if supplied in the returned packet from the remote AAA service). The same mechanism is used to forward accounting event packets from the NAS to the remote AAA server.
    Type: Grant
    Filed: January 4, 1999
    Date of Patent: October 2, 2001
    Assignee: Cisco Technology, Inc.
    Inventors: Andrew Mark Gutman, Aravind Sitaraman, Sampath Kumar Sthothra Bhasham, Kalpathi S. Suryanarayanan
  • Integration of authentication authorization and accounting service and proxy service
    Patent number: RE41811
    Abstract: A single database maintained centrally hosts both proxy service data and authentication, authorization and accounting (AAA) data. Data is then copied to storage used locally by each system when both systems are instantiated. Therefore the ISP/Telco need not maintain two different data bases. A protocol gateway (PGW) is used to determine if the incoming user is a wholesale or retail user. The PGW filters the domain portion of the access request to locate a remote AAA service. If one such service is found, the PGW routes the communication via the proxy service to proxy it to the remote AAA service. The returned packet from the remote AAA service is then searched for an IP address to be assigned to the incoming user. If one is not found the PGW obtains a dynamically allocated IP address from a DHCP server (using an IP-Pool-ID if supplied in the returned packet from the remote AAA service). The same mechanism is used to forward accounting event packets from the NAS to the remote AAA server.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: October 5, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Andrew Mark Gutman, Aravind Sitaraman, Sampath Kumar Sthothra Bhasham, Kalpathi S. Suryanarayanan