The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 03, 2003
Filed:
Oct. 22, 1999
Applicant:
Inventors:
Partha P. Dutta, San Jose, CA (US);
Dalibor F. Vrsalovic, Sunnyvale, CA (US);
Assignee:
AT&T Corp., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/516 ;
U.S. Cl.
CPC ...
G06F 1/516 ;
Abstract
A system and method for loading a filtering rule at a firewall. A firewall receives a packet and determines if a rule that pertains to the packet is loaded at the firewall. If a pertinent rule is found, it is implemented and the action prescribed by the rule for the packet is performed. If no pertinent rule is found, then a pertinent rule is retrieved from a source external to the firewall, and loaded at the firewall. The rule is then implemented for the packet. After the rule expires, e.g., when the user logs off, the rule is deleted from the firewall.