U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Firewall system and method

Patent 6353856 Issued on March 5, 2002. Estimated Expiration Date: Icon_subject January 29, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Conversion of television signal formats with retention of common control data stream
Patent #: 5138659
Issued on: 08/11/1992
Inventor: Kelkar, et al.

Concurrent multi-channel segmentation and reassembly processors for asynchronous transfer mode
Patent #: 5379297
Issued on: 01/03/1995
Inventor: Glover, et al.

Asynchronous transfer mode communication system
Patent #: 5452296
Issued on: 09/19/1995
Inventor: Shimizu

Access switches for large ATM networks
Patent #: 5452297
Issued on: 09/19/1995
Inventor: Hiller, et al.

Terminal adapter for interfacing an ATM network with a STM network
Patent #: 5483527
Issued on: 01/09/1996
Inventor: Doshi, et al.

Method and apparatus for route processing asynchronous transfer mode cells
Patent #: 5528592
Issued on: 06/18/1996
Inventor: Schibler, et al.

Multimedia server
Patent #: 5581552
Issued on: 12/03/1996
Inventor: Civanlar, et al.

Method and apparatus for interconnecting LANs
Patent #: 5600644
Issued on: 02/04/1997
Inventor: Chang, et al.

On-demand guaranteed bandwidth service for internet access points using supplemental user-allocatable bandwidth network
Patent #: 5732078
Issued on: 03/24/1998
Inventor: Arango

Conditional access system
Patent #: 5796829
Issued on: 08/18/1998
Inventor: Newby, et al.

More ...

Inventor

Application

No. 015826 filed on 01/29/1998

US Classes:

709/229, Network resources access controlling709/230, COMPUTER-TO-COMPUTER PROTOCOL IMPLEMENTING709/237Computer-to-computer handshaking

Examiners

Primary: Maung, Zarni
Assistant: Cardone, Jason D.

Attorney, Agent or Firm

Foreign Patent References

  • 7264207 JP. 10/12/1995

International Class

G06F 015/16

Foreign Application Priority Data

1997-01-30 JP

Abstract

A terminal (A) sends a call request message to a terminal (b). This message contains a request for a TCP/IP service. A call control section in a switching node passes the message to an agent, which, in turn, examines whether or not an IP address and a TCP port number set in the received call request message have been entered into a firewall table. If they are found, the request for access to the terminal (b) is granted. As a result, an ATM connection is set up between the terminal (A) and the terminal (b) and a TCP/IP connection is set up on the ATM connection. If they are not found, access to the terminal (b) is refused and no ATM connection is set up between the terminal (A) and the terminal (b).

Other References

  • Esaki, H., "Call Admission Control Method in ATM networks", IEEE Supercomm/ICC '92, ISBN: 0-7803-0599-X, pp. 1628-1633, Jun. 1992.
  • Myers, E.D., "STU-III-multilevel Secure Computer Interface", IEEE CSAC '94, ISBN: 0-8186-6795-8, pp. 170-179, Dec. 1994.
  • Stempel, S., "IpAccess: An Internet Service Access System for Firewall Installations", IEEE, ISBN: 0-8186-7027-4, pp. 31-41, Feb. 1995.
  • Chuang, Shaw-Cheng, "Securing ATM Networks", 3rd ACM Conf. on Computer and Communications Security, pp. 19-30, Mar. 1996.
  • Perkins, C.E. et al., "Mobility Support in IPv6", 2nd ACM Conf. on Mobile Computing and Networking, pp. 27-37, Nov. 1996.
  • Pan, H. et al., "SNMP Based VANTAGE Network Management", IEEE GTC '96, ISBN: 0-7803-336-5, pp. 168-172, Nov. 199
PatentsPlus Images
Enhanced PDF formats
loading...
PatentsPlus: add to cart
PatentsPlus: add to cartSearch-enhanced full patent PDF image
$9.95more info
PatentsPlus: add to cart
PatentsPlus: add to cartIntelligent turbocharged patent PDFs with marked up images
$18.95more info
 
Sign InRegister
Username  
Password   
forgot password?