Information security – Access control or authentication – Network
Reexamination Certificate
2006-04-25
2006-04-25
Barrón, Jr., Gilberto (Department: 2132)
Information security
Access control or authentication
Network
C726S012000, C726S013000, C709S225000, C709S227000, C709S229000
Reexamination Certificate
active
07036141
ABSTRACT:
The invention provides a transmission system, for example, an ATM transmission system, which is adapted for the transmission of IP data packets, and which includes an IP-network, a network protected by a firewall, and means for temporarily opening the firewall to enable IP data packets to be transmitted through the firewall to the protected network. The firewall operates in a manner whereby a particular type of IP-packet, i.e. a Ping (ICMP)-packet, is allowed to pass through the firewall, IP-traffic can pass through the firewall from the inside thereof to the outside thereof, and IP-traffic, similar to that which is sent from the inside of the firewall to the outside of the firewall, can be transmitted through the firewall to the protected network for a limited period of time. In particular, the firewall opening means include two IC-breakers, which are located on opposite sides of said firewall, and which have a structure and functionality dictated by the manner in which the firewall operates. In other words, when an IP data packet, destined for the protected networks, is received by the IC-breaker located on the outside of the firewall, the IC-breakers are adapted to communicate with each other to create the temporary opening in the firewall via which the IP data packet is sent to the protected network.
REFERENCES:
patent: 5778174 (1998-07-01), Cain
patent: 5793763 (1998-08-01), Mayes et al.
patent: 5826029 (1998-10-01), Gore, Jr. et al.
patent: 5828833 (1998-10-01), Belville et al.
patent: 5909549 (1999-06-01), Compliment et al.
patent: 6104716 (2000-08-01), Crichton et al.
patent: 0 713 311 (1996-05-01), None
patent: 0 743 777 (1996-11-01), None
patent: 0 909 075 (1999-04-01), None
patent: WO 97/00471 (1997-01-01), None
patent: WO 98/31124 (1998-07-01), None
CERT Advisory CA-1996-26 Denial-of-Service Attack via Ping; Dec. 16, 1996; http://www.cert.org/advisories/CA-1996-26.html.
Leech et al; RFC 1928 “SOCKS Protocol Version 5”; Mar. 1996.
Lee, Ying-Da; “SOCKS: A protocol for TCP proxy across firewalls”; http://archive.socks.permeo.com/protocol/socks4.protocol.
Halsall; Data Communications, Computer Networks and Open Systems; 1996; Addison-Wesley Publishers Ltd.; Chapter 10.
Hammarstrom Martin
Sparr Thomas
Barrón Jr. Gilberto
Kim Jung
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Teliasonera AB
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