Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2007-08-21
2007-08-21
Nguyen, Chau (Department: 2616)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S392000
Reexamination Certificate
active
10103408
ABSTRACT:
A system and method for determining a destination for an Internet protocol packet. Generally, with reference to the structure of the system, the system utilizes a memory and a processor. The processor is instructed by the memory to perform the steps of: searching a memory for a destination Internet protocol address associated with the Internet protocol packet, the memory organized into a series of rows, each row including one destination Internet protocol address column, one weight value column, and one destination media access control address column, wherein at least one of said rows comprises a destination Internet protocol address having at least one universal bit, wherein universal bits are bits that accept any value, use of said universal bits ensuring that said step of searching said memory for said destination Internet protocol address associated with said Internet protocol packet results in said memory always having said destination Internet protocol address therein; utilizing said weight factor to select, from the series, a row matching the destination Internet protocol address; reading a destination media access control address column from the selected row; discarding said Internet protocol packet if a value of the destination media access control address is zero; and adding the media access control address to the Internet protocol packet as the destination of the packet, if the destination media access control address is not equal to zero.
REFERENCES:
patent: 6041058 (2000-03-01), Flanders et al.
patent: 6065064 (2000-05-01), Satoh et al.
patent: 6256314 (2001-07-01), Rodrig et al.
patent: 6546391 (2003-04-01), Tsuruoka
patent: 6912223 (2005-06-01), Sloane
patent: 6931452 (2005-08-01), Lamberton et al.
patent: 6987768 (2006-01-01), Kojima et al.
patent: 2002/0018442 (2002-02-01), Okada
patent: 2004/0001492 (2004-01-01), Johnson
patent: 0845889 (1998-06-01), None
patent: WO00/79733 (2000-12-01), None
McAuley, et al., “Fast Routing Table Lookup Using CAMs”, Networking: Foundation for the Future, San Francisco, Mar. 28-Apr.1, 1993, Proceedings of the Annual Joint Conference of Computer and Communications Societies (INFOCOM), Los Alamitos, IEEE, Comp. Soc. Press, US, vol. 2, Conference 12.
Schulzrinne et al., “RTP: A Transport Protocol for Real-Time Applications,” Network Working Group, Jan. 1996, pp. 1-66.
Swale et al., “Requirements for the MIDCOM Architecture and Control Language,” MIDCOM Working Group, Internet Draft, Feb. 2001, pp. 1-24.
Srisuresh et al., “Middlebox Communication Architecture and Framework,” Network Working Group, Internet Draft, Feb. 2001, pp. 1-37.
Martin et al., “SIP Through NAT Enabled Firewall Call Flows,” Midcom Working Group, Internet Draft, Feb. 2001, pp. 1-63.
Rosenberg et al., “Getting SIP through Firewalls and NATs,” Internet Engineering Task Force, Internet Draft, Feb. 22, 2000, pp. 1-57.
Eliot Lear, “A Middle Box Architectural Framework,” Network Working Group, Internet Draft, Jan. 31, 2001, pp. 1-12.
Rosenberg et al., “SIP Traversal through Residential and Enterprise NATs and Firewalls,” Internet Engineering Task Force, Internet Draft, Mar. 2, 2001, pp. 1-41.
Carpenter et al., “Middleboxes: Taxonomy and Issues,” The Internet Society, Internet Engineering Task Force, Internet Draft, Apr. 2001, pp. 1-24.
B. Biggs, “A SIP Application Level Gateway for Network Address Translation,” Internet Draft, Mar. 2000, pp. 1-16.
Kuthan et al., “Middlebox Communication: Framework and Requirements,” Internet Engineering Task Force, Internet Draft, Nov. 2000, pp. 1-23.
P. Srisuresh, “Framework for Interfacing with Network Address Translator,” NAT Working Group, Internet Draft, Apr. 2000, pp. 1-58.
Mart et al., “Firewall Control Requirements,” MidCom Bof, Internet Draft, Nov. 2000, pp. 1-16.
Melinda Shore, “H.323 and Firewalls: Problem Statement and Solution Framework,” Internet Draft, Feb. 3, 2000, pp. 1-19.
Thernelius et al., “SIP Firewall Solution,” SIP Working Group, Internet Draft, Jul. 2000, pp. 1-32.
N. Freed, “Behavior of and Requirements for Internet Firewalls,” Network Working Group, Internet Draft, Oct. 2000, pp. 1-14.
D. Newman, “Benchmarking Terminology for Firewall Performance,” Network Working Group, The Internet Society, Aug. 1999, pp. 1-51.
F. Finlayson, “IP Multicast and Firewalls,” Network Working Group, The Internet Society, May 1999, pp. 1-23.
S. Bellovin, “Firewall-Friendly FTP,” Network Working Group, Feb. 1994, pp. 1-7.
Montenegro et al., “Sun's SKIP Firewall Traversal for Mobile IP,” Network Working Group, The Internet Society, Jun. 1998, pp. 1-45.
Gaynor et al., “Firewall Enhancement Protocol (FEP),” Network Working Group, The Internet Society, Apr. 1, 2001, pp. 1-22.
Dr. Andrew Molitor, “A Firewall Solution for Voice Over IP,” Aravox Report, Aravox Technologies, pp. 1-2.
“Aravox Firewall Benefits,” Aravox Technologies, pp. 1-9.
Dr. Andrew Molitor, “Can Voice Over IP Work Without Dynamic NAT?,” Aravox Report, Aravox Technologies, pp. 1-2.
Dr. Andrew Molitor, “Deploying a Dynamic Voice over IP Firewall with IP Telephony Applications,” Aravox Report, Aravox Technologies, pp. 1-5.
Dr. Andrew Molitor, “Firewall Control for IP Telephony,” Aravox Report, Aravox Technologies, pp. 1-5.
Molitor et al., “High Performance H.323 Firewalling for VoIP Solutions,” Aravox Report, Aravox Technologies, pp. 1-2.
“What is Unique about IP Telephony?,” Aravox Technologies, Spring 2001 IT Expo, pp. 1-16.
Dr. Andrew Molitor, “Securing VoIP Networks with Specific Techniques, Comprehensive Policies and VoIP-Capable Firewalls,” Aravox Report, Aravox Technologies, pp. 1-3.
Utz Roedig, “Security Analysis of IP-Telephony Scenarios,” Presentation by Darmstadt University of Technology, pp. 1-28.
Fredrik Thernelius, “SIP, NAT, and Firewalls,” Master Thesis, Ericsson, May 2000, pp. 1-69.
Steven M. Bellovin, “Distributed Firewalls” ;login: Magazine, Nov. 1999, pp. 37-39 (1-10).
“Firewall ActiveX Control for Microsoft Windows,” Distinct Corporation, 1998, pp. 1-45.
Jiri Kuthan, “Firewall Control,” Flow Processing Control Protocol, pp. 1-3.
Alan Crosswell, “Advanced Networking Information, ” Columbia University Academic Information Systems, Mar. 21, 2000, pp. 1-22.
“Cisco Secure PIX Firewall Software v5.2,” Cisco Data Sheet, pp. 1-7.
“Cisco Secure PIX 500 Firewalls,” Cisco Products & Technologies, 2000, pp. 1-3.
“Cisco Secure PIX Firewall,” Internet Product Watch, Apr. 12, 2001, pp. 1-2.
“Media Firewall,” www.marconi.com, 2000, pp. 1-4.
“Media Firewall,” www.marconi.com, 2001, pp. 1-3.
“ATM Switch Network Modules: LAN, WAN, and Service Interfaces for TNX-210, TNX-1100, ASX-200BX, ASX-1000 and ASX-1200 ATM Switches,” www.marconi.com, 2000, pp. 1-12.
“Marconi's Next Generation IP and Multi-Service Switch Router Enables End-to-End Differentiated Services,” www.marconi.com, Nov. 6, 2000, pp. 1-3.
“Transforming Communications and Information with Enterprise-Focused Ethernet Solutions,” www.marconi.com., pp. 1-6.
“Marconi Expands Networking Product Portfolio with Solutions for Emerging Enterprise Needs,” www.marconi.com, Jul. 24, 2000, pp. 1-2.
“Marconi to Showcase ‘Smart and Fast’ Switch/Router at CeBIT,” www.marconi.com, Jan. 22, 2001, pp. 1-2.
“Marconi Demonstrates Converged Distance-Learning Solutions at Educause 2000,” www.marconi.com, Oct. 10, 2000, pp. 1-2.
“Firewall Security,” www.marconi.com, Oct. 30, 2000, pp. 1-2.
“SA-400, IP/ATM Firewalling for ATM Networks,” www.marconi.com, 20
Dobbins Ephraim Webster
Manuja Ajay
Acme Packet Inc.
Nguyen Chau
Park Jung
Thomas Kayden Horstemeyer & Risley LLP
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