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1. EP2387182 - TCP COMMUNICATION SCHEME

Office European Patent Office
Application Number 10735794
Application Date 26.01.2010
Publication Number 2387182
Publication Date 16.11.2011
Publication Kind A4
IPC
H04L 12/66
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
66Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
H04L 29/06
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/-H04L27/136
02Communication control; Communication processing
06characterised by a protocol
H04L 12/70
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
70Packet switching systems
CPC
H04L 69/169
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
69Application independent communication protocol aspects or techniques in packet data networks
16Transmission control protocol/internet protocol [TCP/IP] or user datagram protocol [UDP]
169Special adaptations of TCP, UDP or IP for interworking of IP based networks with other networks
H04L 63/0272
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
63Network architectures or network communication protocols for network security
02for separating internal from external traffic, e.g. firewalls
0272Virtual private networks
H04L 63/0428
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
63Network architectures or network communication protocols for network security
04for providing a confidential data exchange among entities communicating through data packet networks
0428wherein the data content is protected, e.g. by encrypting or encapsulating the payload
H04L 63/1475
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
63Network architectures or network communication protocols for network security
14for detecting or protecting against malicious traffic
1441Countermeasures against malicious traffic
1475Passive attacks, e.g. eavesdropping or listening without modification of the traffic monitored
H04L 69/16
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
69Application independent communication protocol aspects or techniques in packet data networks
16Transmission control protocol/internet protocol [TCP/IP] or user datagram protocol [UDP]
H04L 69/163
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
69Application independent communication protocol aspects or techniques in packet data networks
16Transmission control protocol/internet protocol [TCP/IP] or user datagram protocol [UDP]
163Adaptation of TCP data exchange control procedures
Applicants MEIDENSHA ELECTRIC MFG CO LTD
Inventors TATEISHI YASUSHI
OKURO TATSUYA
NISHIBE YASUNORI
HABUTSU TAKASHI
Designated States
Priority Data 2009016342 28.01.2009 JP
2009260553 16.11.2009 JP
Title
(DE) TCP-KOMMUNIKATIONSSCHEMA
(EN) TCP COMMUNICATION SCHEME
(FR) MODÈLE DE COMMUNICATION TCP
Abstract
(EN)
A TCP communication scheme which ensures safe communication up to the communication path near a terminal and eliminates direct attacks from hackers, etc. A terminal (A) and terminal (B) are connected to a relay apparatus (X) and relay apparatus (Y), where the terminal (A) and the terminal (B) are the endpoint terminals positioned at the two ends of a TCP communication connection. The relay apparatuses (X, Y) are each connected to a network (NET). The relay apparatuses (X and Y) are provided so as to be between the terminals (A and B) which had been performing conventional TCP communication, and neither of the relay apparatuses (X and Y) have IP addresses. The relay apparatuses (X and Y) take over the TCP connection between the terminal (A) and the terminal (B), divide the connection into three TCP connections, and establish TCP communication.

(FR)
L'invention concerne un système de communication TCP qui assure une communication sûre jusqu'à la voie de communication proche d'un terminal et qui élimine les attaques directes provenant de pirates, etc. Un terminal (A) et un terminal (B) sont connectés à un appareil relais (X) et à un appareil relais (Y), le terminal (A) et le terminal (B) étant les terminaux de point de terminaison positionnés aux deux extrémités d'une liaison de communication TCP. Chacun des appareils relais (X, Y) est connecté à un réseau (NET). Les appareils relais (X et Y) sont prévus pour être placés entre les terminaux (A et B) qui ont effectué une communication TCP conventionnelle et ne présentent pas d'adresse IP. Les appareils relais (X et Y) prennent le relais de la connexion TCP entre le terminal (A) et le terminal (B), divisent la connexion en 3 connexions TCP et établissent une communication TCP.