Methods and apparatus for a computer network firewall with proxy reflection
AssigneeLucent Technologies Inc.
InventorsMichael John Coss, David L. Majette, Ronald L. Sharp
Life of this patent
Estimating the term…
Loading patent…
AssigneeLucent Technologies Inc.
InventorsMichael John Coss, David L. Majette, Ronald L. Sharp
Estimating the term…
Computer network firewalls which include one or more features for increased processing efficiency are provided. A firewall in accordance with the invention can support multiple security policies, multiple users or both, by applying any one of several distinct sets of access rules. The firewall can also be configured to utilize "stateful" packet filtering which involves caching rule processing results for one or more packets, and then utilizing the cached results to bypass rule processing for subsequent similar packets. To facilitate passage to a user, by a firewall, of a separate later transmission which is properly in response to an original transmission, a dependency mask can be set based on session data items such as source host address, destination host address, and type of service. The mask can be used to query a cache of active sessions being processed by the firewall, such that a rule can be selected based on the number of sessions that satisfy the query. Dynamic rules may be used in addition to pre-loaded access rules in order to simplify rule processing. To unburden the firewall of application proxies, the firewall can be enabled to redirect a network session to a separate server for processing.
A method for providing a firewall service in a computer network, comprising the steps of:
A method for providing a firewall service in a computer network, comprising the steps of:
A method for providing a firewall service in a computer network, comprising the steps of:
A method for providing a firewall service in a computer network, comprising the steps of:
A method for providing a firewall service in a computer network, comprising the steps of:
A computer system for providing a firewall service in a computer network, comprising:
A computer system for providing a firewall service in a computer network, comprising a processor which is operable to:
A method for providing a firewall service in a computer network, comprising the steps of:
A method for providing a firewall service in a computer network, comprising the steps of:
Apparatus for providing a firewall service in a computer network, the apparatus comprising:
Apparatus for providing a firewall service in a computer network, the apparatus comprising:
Dependencies are inferred from the claim text.