Matthew D Richardson

US Patent:

20130031605, Jan 31, 2013

Filed:

Jul 28, 2011

Appl. No.:

13/193254

Inventors:

Lawrence Bruce Huston III - Ann Arbor MI, US
Matthew Richardson - Ann Arbor MI, US
Aaron Campbell - Hammonds Plains, CA

Assignee:

ARBOR NETWORKS, INC. - Chelmsford MA

International Classification:

G06F 21/20
G06F 15/16

US Classification:

726 3

Abstract:

A system and method to track external devices attempting to connect to a protected network using probabilistic filters. When a connection from a new external device attempts to access the protected network, the memory of a protection system, which is organized as a probabilistic filter, is searched to determine if the IP address already exists in the memory of protection system. If the search locates the IP address, the protection system terminates the connection to the external device. If the search is negative, then protection device begins the authentication process for the external device.