Preventing denial-of-service attacks employing broadcast...

Details Preventing denial-of-service attacks employing broadcast... Preventing denial-of-service attacks employing broadcast...

2005-08-04

2010-11-02

Zimmerman, Brian A (Department: 2612)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S216000, C370S431000

Reexamination Certificate

active

07826447

ABSTRACT:
An apparatus having a corresponding method and computer program comprises a processor; a plurality of ports to transmit and receive packets of data, the plurality of ports comprising a processor port in communication with the processor, the packets comprising broadcast packets and multicast packets; a memory to store a table that associates the processor port with one or more Internet protocol (IP) addresses; and a forwarding engine to transfer the packets between the ports, to transfer each of the broadcast packets to the processor port only when the table associates a target IP address of the broadcast packet with the processor port, and to transfer each of the multicast packets to the processor port only when the table associates a target IP address of the multicast packet with the processor port.

REFERENCES:
patent: 7032031 (2006-04-01), Jungck et al.
patent: 2003/0174711 (2003-09-01), Shankar
patent: 2003/0236999 (2003-12-01), Brustoloni
patent: 2004/0078485 (2004-04-01), Narayanan
patent: 2004/0109452 (2004-06-01), Takihiro et al.
patent: 2005/0198519 (2005-09-01), Tamura et al.
patent: 2006/0080733 (2006-04-01), Khosmood et al.

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