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. 03, 2013
Filed:
Apr. 28, 2009
Stefan Wahl, Schwieberdingen, DE;
Peter Domschitz, Stuttgart, DE;
Juergen Sienel, Leonberg, DE;
Bernhard Noe, Korntal-Muenchingen, DE;
Stefan Wahl, Schwieberdingen, DE;
Peter Domschitz, Stuttgart, DE;
Juergen Sienel, Leonberg, DE;
Bernhard Noe, Korntal-Muenchingen, DE;
Alcatel Lucent, Paris, FR;
Abstract
The invention relates to a protection unit for protecting a packet-based network from attacks, comprising: a signature analyzer for analyzing a packet stream received in a security border node of the packet-based network and for detecting attacks by comparing signatures of the packet stream with a set of signatures of previously identified attacks, an anomaly detector for detecting anomalies in the packet stream, and a signature interference unit for updating the set of signatures when anomalies in the packet stream are detected, the updated set of signatures being subsequently used for performing the signature analysis. A distribution unit distributes at least one signature of the updated set of signatures to at least one further security border node of the packet-based network. The invention also relates to a security border node comprising such a protection unit, a network comprising at least two such protection units, and a corresponding protection method.