Protecting networks from cyber attacks and overloading

Patent metadata

Field	Value
Publication number	US-9094445-B2
Application number	US-201313838471-A
Country	US
Kind code	B2
Filing date	Mar 15, 2013
Priority date	Mar 15, 2013
Publication date	Jul 28, 2015
Grant date	Jul 28, 2015

Abstract

Packets may be received by a packet security gateway. Responsive to a determination that an overload condition has occurred in one or more networks associated with the packet security gateway, a first group of packet filtering rules may be applied to at least some of the packets. Applying the first group of packet filtering rules may include allowing at least a first portion of the packets to continue toward their respective destinations. Responsive to a determination that the overload condition has been mitigated, a second group of packet filtering rules may be applied to at least some of the packets. Applying the second group of packet filtering rules may include allowing at least a second portion of the packets to continue toward their respective destinations.

First claim

What is claimed is:

1. A method comprising:
at each packet-filtering device of a plurality of packet-filtering devices interfacing a plurality of different autonomous system networks:
receiving, via a communication interface of the packet-filtering device, a plurality of packets;
responsive to a determination, by at least one processor of the packet-filtering device, that a network-overload condition impacting effective transmission capacity at a peering point interfacing two o…

Assignees

• Centripetal Networks Inc

Inventors

• Moore Sean
• Rogers Steven
• Scoggins Sr John Daniel

Classifications

• H04L63/1441

  Electricity · mapped topic

• H04L47/11

  Electricity · mapped topic

• H04L63/0236 Primary

  Electricity · mapped topic

• H04L29/06925

  Electricity · mapped topic

• H04L29/06884

  Electricity · mapped topic