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:
Dec. 02, 2008
Filed:
May. 06, 2003
Matti Leppanen, Lieto, FI;
Riku Salminen, Turku, FI;
Henri Sara, Valbonne, FR;
Tuomo Syvanne, Vantaa, FI;
Matti Leppanen, Lieto, FI;
Riku Salminen, Turku, FI;
Henri Sara, Valbonne, FR;
Tuomo Syvanne, Vantaa, FI;
Stonesoft Corporation, Helsinki, FI;
Abstract
The invention concerns handling in a firewall data communication protocols comprising at least one parent connection and at least one related connection, wherein at least one attribute of the related connection is negotiated within the parent connection. Whether to allow a related connection is decided on the basis of information about the related connection as well as information about the parent connection. The method of the invention comprises allowing a parent connection, storing information about the parent connection, monitoring contents of the parent connection, detecting within the parent connection negotiation of at least one attribute of a related connection, and using said at least one negotiated attribute of the related connection and said information about the parent connection for deciding, whether said related connection is allowable.