KR101897123B1 - Dual unidirectional data and management information transmission system - Google Patents

Dual unidirectional data and management information transmission system Download PDF

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Publication number
KR101897123B1
KR101897123B1 KR1020170117847A KR20170117847A KR101897123B1 KR 101897123 B1 KR101897123 B1 KR 101897123B1 KR 1020170117847 A KR1020170117847 A KR 1020170117847A KR 20170117847 A KR20170117847 A KR 20170117847A KR 101897123 B1 KR101897123 B1 KR 101897123B1
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South Korea
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management
management unit
information
internal network
unit
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KR1020170117847A
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Korean (ko)
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김기현
박혜용
김일용
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(주)앤앤에스피
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/02Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
    • H04L63/029Firewall traversal, e.g. tunnelling or, creating pinholes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/20Network architectures or network communication protocols for network security for managing network security; network security policies in general

Abstract

A dual unidirectional data and management information transmission system includes a forward unidirectional data transmission system, a reverse unidirectional data transmission system, and an integrated management system. The integrated management system includes: a group including an internal network transmission control management unit, an external network transmission control management unit, an external network reception control management unit, and an internal network reception control management unit for transmitting management policy information to each of the internal network transmission device and external network reception device of the forward unidirectional data transmission system and each of the internal network reception device and external network transmission device of the reverse unidirectional data transmission system as well as collecting current management state information from each of the above-mentioned components; a first forward unidirectional management information line for transmitting the management policy information and current management state information from the internal network transmission control management unit to the external reception control management unit; a first reverse unidirectional management information line for transmitting the current management state information or the management policy information from the external network transmission control management unit and the internal network reception control management unit; and an integrated management unit which transmits the management policy information or receives the current management state information through the internal network transmission control management unit, external network reception control management unit, external network transmission control management unit, and internal network reception control management unit in accordance with the transmission path of management information.

Description

DUAL UNIDIRECTIONAL DATA AND MANAGEMENT INFORMATION TRANSMISSION SYSTEM [0002]

The present invention relates to dual unidirectional data and management information transmission systems.

In the network separation environment, the unidirectional data transmission system is used to transmit data from the internal network (security area) to the external network (non-security area) in the forward direction or to transmit data from the external network to the internal network in the reverse direction do.

The unidirectional data transmission system includes a transmitting apparatus and a receiving apparatus, and can transmit data from the transmitting apparatus to the receiving apparatus, but can not transmit data from the receiving apparatus to the transmitting apparatus.

Generally, a unidirectional data transmission system is managed separately in each of a transmitting apparatus and a receiving apparatus, and a management policy is set in a transmitting apparatus to be transferred to and applied to a receiving apparatus. The transmitting apparatus collects logs, Use a managed structure.

A technique for solving the above problems is disclosed in Korean Patent No. 10-1593168. This technology provides a structure for monitoring the operation and data communication status of a transmitting apparatus and a receiving apparatus, including a monitoring apparatus in a unidirectional data transmission system. However, this technique provides a structure for monitoring a transmitting apparatus and a receiving apparatus, but does not provide a structure for transmitting and receiving management information with the transmitting apparatus and the receiving apparatus.

The object of the present invention is to provide a transmitting apparatus and a receiving apparatus in a forward direction data transmission system for transmitting data from an internal network to an external network and a transmitting apparatus and a receiving apparatus in a forward direction data transmission system for transmitting data from an external network to an internal network And a dual unidirectional data and management information transmission system capable of transmitting and receiving management information to and from a receiving apparatus.

The problems of the embodiments according to the present disclosure are not limited to the above-mentioned problems, and other matters not mentioned can be clearly understood by those skilled in the art from the following description.

The unidirectional data and management information transmission system according to the embodiments of the present disclosure includes an internal network transmission apparatus connected to an internal network, an external network reception apparatus connected to an external network, and an external network transmission apparatus transmitting data from the internal network transmission apparatus to the external network reception apparatus A forward direction data transmission system having a first forward direction data line; And a first reverse unidirectional data transmission line for transmitting data from the external network transmission apparatus to the internal network reception apparatus, and an internal network transmission apparatus connected to the external network, system; And an internal network transmission control management unit for transmitting management policy information to each of the internal network transmission apparatus, the external network reception apparatus, the external network transmission apparatus, and the internal network reception apparatus, and collecting management status information from each of the internal network transmission apparatuses, Reception control management unit, external network transmission control management unit, and internal network reception control management unit; A first forward direction management information line for transmitting the management policy information or the management status information from the internal network transmission control management unit to the external network reception control management unit; A first unidirectional management information line for transmitting the management policy information or the management status information from the external network transmission control management unit to the internal network reception control management unit; And the management policy information for transmitting the management policy information through the internal network transmission control management unit, the external network reception control management unit, the external network transmission control management unit, and the internal network reception control management unit, The external network transmission control management unit, the external network transmission control management unit, and the internal network reception control management unit according to the transmission path of the management status information for transmitting the management status information, And an integrated management system for receiving the management status information, wherein each of the internal network transmission control management unit, the external network reception control management unit, the external network transmission control management unit, and the internal network reception control management unit includes: When the management policy information is received, And if the management policy information of the own management policy information is included, separates its management policy information from the received management policy information and applies its own management policy information to the device managing itself If the management policy information other than the management policy information other than the management policy information is included in the received management policy information, transmitting the management policy information to the next stage according to the transmission path of the management policy information, If the management policy information does not include its own management policy information, it transfers the received management policy information to the next stage according to the transmission path of the management policy information, , The management status information of the user is managed according to the transmission path of the management status information And if the management status information is received and the management status information of the management status information is received, the management status information is combined with the received management status information, and the combined management status information And transmits the received management status information to the next stage according to the transmission path of the management status information when the management status information is received even though the management status information does not exist.

According to embodiments of the present disclosure, an internal network transmission apparatus and an external network reception apparatus of a forward direction data transmission system for transmitting data from an internal network to an external network, and reverse unidirectional data It provides unified management and convenience by providing an integrated management system that can transmit and receive management information to and from the external network transmission device of the transmission system and the internal network reception device.

In addition, according to embodiments of the present disclosure, security is improved by allowing the integrated management unit of the integrated management system to be managed in a security area to safely manage dual unidirectional data and management information transmission systems from external threats.

In addition, according to embodiments of the present disclosure, the integrated management unit of the integrated management system can transmit management policy information according to the transmission path of the management policy information, and receive the management status information according to the transmission path of the management status information .

1 is a block diagram showing a configuration of a dual unidirectional data and management information transmission system according to an embodiment of the present disclosure;
2 is a block diagram showing a configuration of an integrated management unit according to an embodiment of the present disclosure;
3A to 3D are diagrams illustrating embodiments of a transmission path of management policy information of the dual unidirectional data and management information transmission system shown in FIG.
FIGS. 4A to 4D are diagrams illustrating embodiments of a transmission path of management status information of the dual unidirectional data and management information transmission system shown in FIG. 1. FIG.
5 to 8 are block diagrams showing a configuration of a dual unidirectional data and management information transmission system according to the embodiments of the present disclosure.
FIGS. 9A to 9E are views of embodiments for explaining a transmission path of management policy information of the dual unidirectional data and management information transmission system shown in FIG.
FIGS. 10A to 10E are views of embodiments for explaining a transmission path of management status information of the dual unidirectional data and management information transmission system shown in FIG.
11 to 13 are block diagrams showing the configuration of the dual unidirectional data and management information transmission system according to the embodiments of the present disclosure.

Hereinafter, a dual unidirectional data and management information transmission system according to embodiments of the present disclosure will be described with reference to the accompanying drawings.

FIG. 1 is a block diagram illustrating a configuration of a dual unidirectional data and management information transmission system according to an embodiment of the present disclosure. The dual unidirectional data transmission system 100 includes a forward direction data transmission system 210, 220, and an integrated management system 230. The dual unidirectional data and management information transmission system 100 may be located between the internal network 300 and the external network 400. [

The internal network 300 includes internal network systems 310 and 320 and the external network 400 may include external network systems 410 and 420. The internal network systems 310 and 320 may be the same system or other systems connected through the internal network 300. The external network systems 410 and 420 may be the same system or other systems connected through the external network 400. [ The forward direction data transmission system 210 includes an internal network transmission device 212 and an external network reception device 214 and the reverse unidirectional data transmission system 220 includes an external network transmission device 222 and an internal network reception device 224). The internal network transmission apparatus 212 includes an internal network information collecting and linking unit 212-1 and an internal network unidirectional transmission unit 212-2 and the external network reception apparatus 214 includes an external network unidirectional reception unit 214-1, And an external network information communicating unit 214-2. The external network transmitting apparatus 222 includes an external network information collecting and linking unit 222-1 and an external network unidirectional transmitting unit 222-2. The internal network receiving apparatus 224 includes an internal network unidirectional receiving unit 224-1, And an internal network information communicating unit 224-2. The integrated management system 230 includes an internal network transmission control management unit 232, an external network reception control management unit 234, an external network transmission control management unit 236, an internal network reception control management unit 238, and an integrated management unit 240 .

The internal network 300, the internal network transmission apparatus 212, the internal network transmission control management unit 232, the internal network reception control management unit 238, the internal network reception apparatus 224, and the integrated management unit 240, The external network receiving control unit 234, the external network transmission control managing unit 236 and the external network transmitting unit 222 may be located in a non-secured Can be located in the region (B).

The function of each of the blocks shown in FIG. 1 will be described as follows.

The forward direction data transmission system 210 can transmit data from the internal network system 310 to the external network system 410 in the forward direction.

The internal network transmission apparatus 212 transmits and receives data to and from the internal network system 310 and transmits data to the external network reception apparatus 214 through the first true direction data line DL11. The external network receiving apparatus 214 can receive data transmitted through the first full direction data line DL11 and transmit / receive data to / from the external network system 410. [ The internal network information collecting and linking unit 212-1 can communicate with the internal network system 310 and transmit and receive data with the internal network system 310. [ The internal network unidirectional transmission unit 212-2 may transmit the data transmitted from the internal network information collection linking unit 212-1 to the external network reception apparatus 214 through the first true direction data line DL11. The external network unidirectional receiver 214-1 can receive data transmitted through the first forward direction data line DL11. The external network information delivering unit 214-2 may communicate with the external network system 410 and may transmit data transmitted from the external network unidirectional receiver 214-1 to the external network system 410. [

The reverse unidirectional data transmission system 220 can transmit data in the reverse direction from the external network system 420 to the internal network system 320. [

The external network transmission apparatus 222 transmits and receives data to and from the external network system 420 and transmits data to the internal network reception apparatus 224 through the first reverse unidirectional data line DL12. The internal network receiving apparatus 224 receives data transmitted through the first reverse unidirectional data line DL12 and communicates with the internal network system 320 to transmit and receive data to and from the internal network system 320. [ The external network information collecting and linking unit 222-1 can communicate with the external network system 420 and transmit and receive data to and from the external network system 420. [ The external network unidirectional transmitter 222-2 can transmit data transmitted from the external network information collector 222-1 through the first unidirectional data line DL12. The internal network unidirectional receiving unit 224-1 can receive data transmitted through the first reverse unidirectional data line DL12. The internal network information delivery linkage unit 224-2 can communicate with the internal network system 320 and transmit data transmitted from the internal network unidirectional reception unit 224-1 to the internal network system 320. [

The internal network transmission control and management unit 232 transmits and receives management information to and from the internal network information collecting and linking unit 212-1 and the internal network unidirectional transmission unit 212-2, Information can be transmitted. The external network reception control and management unit 234 transmits and receives management information to and from the external network unidirectional reception unit 214-1 and the external network information delivery linkage unit 214-2, Information can be received. The external network transmission control management unit 236 transmits and receives the management information to and from the external network information collection linking unit 222-1 and the external network unidirectional transmission unit 222-2 and manages the management information through the first reverse unidirectional management information line ML12 Information can be transmitted. The internal network reception control and management unit 238 transmits and receives management information to and from the internal network unidirectional reception unit 224-1 and the internal network information delivery link unit 224-2 and transmits the management information through the first reverse unidirectional management information line ML12 Can be received. The integrated management unit 240 may send and receive management information to and from the internal network transmission control management unit 232 and the internal network reception control management unit 238, respectively. The integrated management unit 240 controls the internal network transmission control management unit 232, the external network reception control management unit 234, the external network transmission control management unit 236 and the internal network reception control management unit 238 according to the transmission path of the management information. And transmits the management information to at least one of the internal network transmission device 212, the external network reception device 214, the external network transmission device 222 and the internal network reception device 224, ), The external network receiving apparatus 214, the external network transmitting apparatus 222, and the internal network receiving apparatus 224. The internal network transmission control management unit 232 and the internal network reception control management unit 238 can transmit and receive management information. The external network reception control management unit 234 can transmit the management information to the external network transmission control management unit 236. [

In embodiments according to the present disclosure, the management information may include management policy information or management status information. The management policy information may be set by the administrator authorized by the integrated management unit 240. [ The management policy information may be newly generated by reflecting the management status information in the integrated management unit 240. [ The management policy information includes information on distribution, inquiry, change, deletion, request information, authorized communication request information, patch and update information, correspondence information on security events and logs, response information on errors and faults, Information, and the like. That is, the management policy information may be information for requesting or applying to the internal network transmission apparatus 212, the external network reception apparatus 214, the external network transmission apparatus 222, and the internal network reception apparatus 224. The management status information includes the result of applying the management policy to the internal network transmission device 212, the external network reception device 214, the external network transmission device 222, and the internal network reception device 224, , Security events and log information, error and failure information, system and network status information, and the like. That is, the management status information may be information that is responded to or generated in the internal network transmission device 212, the external network reception device 214, the external network transmission device 222, and the internal network reception device 224. One of the transmission paths of various management information can be set in consideration of the forward direction management information transmission, the reverse unidirectional management information transmission characteristic, the management policy information, and the management status information characteristic, and according to the transmission path of the management information, Management information for at least one of the external network device 212, the external network receiving device 214, the external network transmitting device 222, and the internal network receiving device 224 may be transmitted and received. The transmission path of the management information may include a transmission path of the management policy information for transmitting the management policy information or a transmission path of the management status information for transmitting the management status information.

In the embodiments according to the present disclosure, the management policy information is transmitted from the internal network information collecting and linking unit 212-1 and the internal network system 310 to the external network information linking unit 214-2 and the external network system The communication between the external network information collecting unit 222-1 and the external network system 420 and the communication between the internal network information delivering link unit 224-2 and the internal network system 320, Allow, or deny system address, service, and content. The internal network transmission control management unit 232, the external network reception control management unit 234, the external network transmission control management unit 236 and the internal network reception control management unit 238 are connected to the internal network information collecting and linking unit 212-1, The management information may be applied to each of the network information delivering unit 214-2, the external network information collecting unit 222-1, and the internal network information delivering unit 224-2. Communication between the internal network information collecting and linking unit 212-1 and the internal network system 310, communication between the external network information communicating unit 214-2 and the external network system 410, external network information collecting and linking unit 222 Service and contents and the like at the time of communication between the external network system and the external network system 420 and between the internal network information delivering unit 224-2 and the internal network system 320 And allow or deny monitoring records to be generated as management status information.

In the embodiments according to the present disclosure, the management policy information is transmitted from the internal network transmission control management unit 232 or the internal network reception control management unit 238 to the external network reception control management unit 234 or the external network transmission control management unit 236 Lt; / RTI > The communication request information is information about at least one communication channel allocated among the plurality of communication channels when the first front-end data line DL11 or the first reverse unidirectional data line DL12 is composed of a plurality of communication channels have. Information about at least one communication channel to which the internal network transmission control management unit 232, the external network reception control management unit 234, the external network transmission control management unit 236, and the internal network reception control management unit 238 are allocated, To the unidirectional transmission unit 212-2, the external network unidirectional reception unit 214-1, the external network unidirectional transmission unit 222-2, and the internal network unidirectional reception unit 224-1. The internal network unidirectional transmission unit 212-2, the external network unidirectional reception unit 214-1, the external network unidirectional transmission unit 222-2 and the internal network unidirectional reception unit 224-1 are connected to each other via at least one communication channel The data transmission from the internal network unidirectional transmission unit 212-2 to the external network unidirectional reception unit 214-1 or the external network unidirectional transmission unit 222-2 to the internal network unidirectional reception unit 224-1, Rejects data transmission through communication channels except for at least one communication channel, and transmits a monitoring record for granted or denied communication channels as management status information.

If the integrated management unit 240 transmits the management policy information according to the transmission path of the management policy information, the internal network transmission control management unit 232, the external network reception control management unit 234, the external network transmission control management unit 236, And the internal network reception control management unit 238 determine whether the management policy information is included in the received management policy information when the management policy information is received and if the management policy information is included in the received management policy information, The management policy information of the user is separated from the management policy information, and the management policy information of the user is applied to the device managed by the user. If the received management policy information includes other management policy information in addition to the management policy information, The other management policy information is transmitted to the next stage according to the transmission path of the information, and the management policy information of the received management policy information is included in the received management policy information A different management policy if it is information that contains, a management policy information received according to the transmission path of the management information even if the policy can be directly transferred to the next stage. Each of the internal network transmission control management unit 232, the external network reception control management unit 234, the external network transmission control management unit 236 and the internal network reception control management unit 238 has its own management status information, The management status information is transmitted to the next stage according to the transmission path of the management status information, and if the management status information is received and the management status information is received, the management status information is combined with the received management status information, The combined management status information is transmitted to the next stage according to the transmission path, and if the management status information is received even though the management status information is not present, the received management status information can be transmitted to the next stage according to the transmission path of the management status information .

Unlike the configuration of FIG. 1, the dual unidirectional data and management information transmission system of the embodiment of the present disclosure includes an internal network transmission apparatus 212 and an internal network transmission control management unit 232. The external network reception apparatus 214 The external network transmission apparatus 222 and the external network transmission control management unit 236 are formed integrally with the internal network reception apparatus 224 and the internal network reception control apparatus 234, And the management unit 238 may be configured integrally.

Unlike the configuration of FIG. 1, the dual unidirectional data and management information transmission system of the embodiment of the present disclosure includes an internal network transmission apparatus 212, an internal network transmission control management unit 232, an internal network reception control management unit 238, The network receiving apparatus 224 is integrally configured and the external network receiving apparatus 214, the external network receiving control management unit 234, the external network transmission control management unit 236, and the external network transmitting apparatus 222 are integrally configured .

Unlike the configuration of FIG. 1, the dual unidirectional data and management information transmission system of the embodiment of the present disclosure includes an internal network transmission apparatus 212, an internal network transmission control management unit 232, an external network reception control management unit 234, The external network transmission control unit 236, the internal network reception control management unit 238 and the internal network receiving unit 234 are integrally formed .

FIG. 2 is a block diagram illustrating the configuration of the integrated management unit 240 shown in FIG. 1. The integrated management unit 240 includes an integrated management policy management unit 240-1 and an integrated management status management unit 240-2. have.

The integrated management policy management unit 240-1 may generate the management policy information set by the authorized administrator or generate the newly generated management policy information by reflecting the management status information in the management policy information. The integrated management status management unit 240-2 may receive the management status information and may transmit the management status information to the integrated management policy management unit 240-1.

3A to 3D are diagrams for explaining a transmission path of management policy information of dual unidirectional data and management information transmission system 100 according to the embodiments of the present disclosure.

3A to 3D, P1, P2, P3 and P4 are applied to the internal network transmitting apparatus 212, the internal network receiving apparatus 224, the external network receiving apparatus 214, and the external network transmitting apparatus 222, respectively It may indicate the management policy information transmitted to the internal network transmission control and management unit 232, the internal network reception control and management unit 238, the external network reception control and management unit 234, and the external network transmission control and management unit 236, respectively. In Figs. 3A to 3D, " + " may mean a combination of information.

3A, the integrated management unit 240 divides management policy information P1, P2, P3, and P4 into management policy information P1, P3, and P4 and management policy information P2, P1, P3 and P4 are combined to transmit the management policy information P1 + P3 + P4 to the internal network transmission control management unit 232 and the management policy information P2 to the internal network reception control management unit 238 have. The internal network reception control management unit 238 receives the management policy information P2 and applies the same to the internal network reception apparatus 224 and the internal network transmission control management unit 232 separates the management policy information P1 + The management policy information P1 may be applied to the internal network transmission apparatus 212 and the management policy information P3 + P4 may be transmitted to the external network reception control management unit 234. [ The external network reception control management unit 234 separates the management policy information P3 + P4 and applies the management policy information P3 to the external network receiving apparatus 214. The management policy information P4, Lt; RTI ID = 0.0 > 236 < / RTI > The external network transmission control management unit 236 may apply the management policy information P4 to the external network transmission apparatus 222. [

Referring to FIG. 3B, the integrated management unit 240 may combine the management policy information P1, P2, P3, and P4 and transmit the combined information to the internal network transmission control management unit 232. FIG. The internal network transmission control management unit 232 separates the management policy information P1 + P2 + P3 + P4 and applies the management policy information P1 to the internal network transmission apparatus 212, And transmits the management policy information (P3 + P4) to the external network reception control management unit 234. In this case, The internal network reception control management unit 238 may apply the management policy information P2 to the internal network receiving apparatus 224. [ The external network reception control management unit 234 separates the management policy information P3 + P4 and applies the management policy information P3 to the external network receiving apparatus 214. The management policy information P4, (236). The external network transmission control management unit 236 may apply the management policy information P4 to the external network transmission apparatus 222. [

3C, the integrated management unit 240 combines the management policy information P1, P2, P3, and P4 and transmits the management policy information P1 + P2 + P3 + P4 to the internal network reception control management unit 238 . The internal network reception control and management unit 238 separates the management policy information P1 + P2 + P3 + P4 and applies the management policy information P2 to the internal network receiving apparatus 224 and the management policy information P1 + P4 may be transmitted to the internal network transmission control management unit 232. The internal network transmission control management unit 232 separates the management policy information P1 + P3 + P4 and applies the management policy information P1 to the internal network transmission apparatus 212 and the management policy information P3 + To the network reception control management unit 234. The external network reception control management unit 234 receives the management policy information P3 + P4 and applies the management policy information P3 to the external network reception apparatus 214. The management policy information P4, Lt; RTI ID = 0.0 > 236 < / RTI > The external network transmission control management unit 236 may apply the management policy information P4 to the external network transmission apparatus 222. [

Referring to FIG. 3D, the integrated management unit 240 combines the management policy information P1, P2, P3, and P4 and transmits the management policy information P1 + P2 + P3 + P4 to the internal network transmission control management unit 232 . The internal network transmission control management unit 232 separates the management policy information P1 + P2 + P3 + P4 and applies the management policy information P1 to the internal network transmission apparatus 212 and the management policy information P2 + P3 + P4 May be transmitted to the external network reception control management unit 234. The external network reception control management unit 234 separates the management policy information P2 + P3 + P4 and applies the management policy information P3 to the external network receiving apparatus 214 and the management policy information P2 + To the transmission control management unit 236. The external network transmission control management unit 236 separates the management policy information P2 + P4 and applies the management policy information P4 to the external network transmission apparatus 222, (238). The internal network reception control management unit 238 may apply the management policy information P2 to the internal network receiving apparatus 224. [

3A to 3C, the integrated management unit 240 generates management policy information (P1, P2, P3, and P4) and transmits the management policy information to the integrated management unit 240. However, At least one management policy information (P1, P2, P3, or P4) may be generated and transmitted as described above. In this case, each of the internal network transmission control management unit 232, the internal network reception control management unit 238, the external network reception control management unit 234, and the external network transmission control management unit 236, Determines whether the policy information is included, and if the management policy information is included, separates the management policy information from the received management policy information, applies the management policy information of the own management policy information to the apparatus managed by itself, If other management policy information is included in the management policy information, the other management policy information is transmitted to the next stage according to the transmission path of the management policy information, and the management policy information , The management policy information received according to the transmission path of the management policy information It can be directly transferred to the next stage.

4A to 4D are diagrams for explaining a transmission path of management status information of dual unidirectional data and management information transmission system according to the embodiments of the present disclosure.

In FIGS. 4A to 4D, C1, C2, C3 and C4 denote the internal network transmission control management unit 232, the internal network reception control management unit 238, the external network reception control management unit 234 and the external network transmission control management unit 236, Management status information collected from each of the internal network transmission apparatus 212, the internal network reception apparatus 224, the external network reception apparatus 214, and the external network transmission apparatus 222 can be displayed. 4A to 4D, " + " may mean a combination of information.

Referring to FIG. 4A, the external network reception control management unit 234 may transmit the management status information C3 to the external network transmission control management unit 236. FIG. The external network transmission control management unit 236 may transmit the management status information (C3 + C4) to the internal network reception control management unit 238 by combining the management status information (C3) and the management status information (C4). The internal network reception control and management part 238 may transmit the management status information C2 + C3 + C4 to the internal network transmission control management part 232 by combining the management status information C2 and the management status information C3 + C4 . The internal network transmission control management unit 232 may transmit the management status information (C1 + C2 + C3 + C4) to the integrated management unit 240 by combining the management status information C1 and the management status information (C2 + C3 + C4) have. The integrated management unit 240 may reflect the management status information C1, C2, C3, C4 to the management policy information P1, P2, P3, P4 to generate new management policy information.

Referring to FIG. 4B, the external network reception control management unit 234 can transmit the management status information C3 to the external network transmission control management unit 236. FIG. The external network transmission control management unit 236 may transmit the management status information (C3 + C4) to the internal network reception control management unit 238 by combining the management status information (C3) and the management status information (C4). The internal network reception control management unit 238 may transmit the management status information C2 + C3 + C4 to the integrated management unit 240 by combining the management status information C2 and the management status information C3 + C4. The internal network transmission control management unit 232 may transmit the management status information C1 to the integrated management unit 240. [ The integrated management unit 240 receives the management status information C1 and the management status information C2 + C3 + C4 and stores the management status information C1, C2, C3, and C4 in the management policy information P1, P2, P4) to generate new management policy information.

Referring to FIG. 4C, the internal network transmission control management unit 232 may transmit the management status information C1 to the external network reception control management unit 234. The external network reception control management unit 234 may transmit the management status information C1 + C3 to the external network transmission control management unit 236 by combining the management status information C1 and the management status information C3. The external network transmission control management unit 236 may transmit the management status information C1 + C3 + C4 to the internal network reception control management unit 238 by combining the management status information C1 + C3 and the management status information C4 . The internal network reception control management unit 238 may combine the management status information C2 and the management status information C1 + C3 + C4 to transmit the management status information C1 + C2 + C3 + C4 to the integrated management unit 240 have. The integrated management unit 240 receives the management status information C1 + C2 + C3 + C4 and reflects the management status information C1, C2, C3, and C4 in the management policy information P1, P2, P3, Management policy information can be generated.

Referring to FIG. 4D, the internal network transmission control management unit 232 may transmit the management status information C1 to the internal network reception control management unit 234. The external network reception control management unit 234 may transmit the management status information C3 to the external network transmission control management unit 236. [ The external network transmission control management unit 236 may transmit the management status information (C3 + C4) to the internal network reception control management unit 238 by combining the management status information (C3) and the management status information (C4). The internal network reception control management unit 238 may combine the management status information C2 and the management status information C1 + C3 + C4 to transmit the management status information C1 + C2 + C3 + C4 to the integrated management unit 240 have. The integrated management unit 240 receives the management status information C1 + C2 + C3 + C4 and reflects the management status information C1, C2, C3, and C4 in the management policy information P1, P2, P3, Management policy information can be generated.

The transmission path of the management status information shown in FIGs. 4A to 4D includes an internal network transmission control management unit 232, an internal network reception control management unit 238, an external network reception control management unit 234, and an external network transmission control management unit 236. [ The internal network transmission control management unit 232, the internal network reception control management unit 238, the external network reception control management unit 234, and the external network transmission control management unit 236 may collect the management status information and transmit the management status information through the same transmission path. In this case, each of the internal network transmission control management unit 232, the internal network reception control management unit 238, the external network reception control management unit 234, and the external network transmission control management unit 236, Management status information is transmitted to the next stage according to the transmission path of the management status information, and if the management status information is received and the management status information is present, the management status information is combined with the received management status information, The current status information is transmitted to the next stage according to the transmission path of the management status information, and when the management status information is received even though the management status information is not present, the received management status information is transmitted as the next stage according to the transmission path of the management status information .

The transmission path of the management policy information and the transmission path of the management status information with reference to FIGS. 4A to 4D have been described with reference to FIG. 3A to FIG. 3D. However, the topology direction management information line ML1, The information line ML2, and various paths that satisfy the signal transmission directions of the lines between the blocks.

The integrated management unit 240 of the dual unidirectional data and management information transmission system 100 shown in FIG. 1 is configured to transmit the management policy information of one of the transmission paths of the management policy information shown in FIG. 3A to FIG. It is possible to transmit / receive the management information using the transmission path of the management information in which one of the management information is combined.

FIG. 5 is a block diagram illustrating a configuration of a dual unidirectional data and management information transmission system according to an embodiment of the present disclosure. The dual unidirectional data and management information transmission system 110 includes a dual unidirectional data and management information transmission system The white zone C is present between the security area A and the non-security area B shown in FIG. 1 and the integrated management system 230 shown in FIG. 1 exists in the integrated management system 230 -1). The integrated management system 230-1 includes an internal network transmission control management unit 232, an external network reception control management unit 234, an external network transmission control management unit 236, and an internal network reception control management unit 238, May be replaced with an internal network transmission control management unit 232-1, an external network reception control management unit 234-1, an external network transmission control management unit 236-1, and an internal network reception control management unit 238-1 . The integrated management system 230-1 may include an integrated management unit 240-1 located in the white zone C instead of the integrated management unit 240 located in the secure area A. [ The white zone C shown in FIG. 5 may be a security zone.

The function of the blocks having the same reference numerals as the blocks shown in FIG. 1 among the blocks shown in FIG. 5 will be easily understood with reference to the description of FIG. 1, .

The integrated management unit 240-1 receives the management status information transmitted from the internal network transmission control management unit 232-1 through the second best-effort direction management information line ML21 and transmits the management policy information to the second reverse unidirectional management information To the internal network reception control management unit 238-1 through the line ML22.

The internal network transmission control management unit 232-1 receives the management policy information or the management status information from the internal network reception control management unit 238-1 and transmits the management status information to the second best effort direction management information line ML21 , Management policy information can be transmitted to the first full-direction management information line ML11.

The external network reception control management unit 234-1 receives the management policy information transmitted through the first full direction management information line ML11 and transmits the management policy information or the management status information to the external network transmission control management unit 236-1, Lt; / RTI >

The external network transmission control management unit 236-1 may receive the management policy information or the management status information transmitted from the external network reception control management unit 234-1 and may transmit the management policy information or the management status information to the first unidirectional management information line ML12.

The internal network reception control management unit 238-1 receives the management policy information or the management status information transmitted through the first reverse unidirectional management information line ML12 and transmits the management policy information or the management status information transmitted through the second reverse unidirectional management information line ML22 Management policy information, and may transmit management policy information or management status information to the internal network transmission control management unit 232-1.

FIG. 6 is a block diagram showing a configuration of a dual unidirectional data and management information transmission system according to an embodiment of the present disclosure. The dual unidirectional data and management information transmission system 120 includes a dual unidirectional data and management information transmission system The white zone C is present between the security area A and the non-security area B shown in FIG. 1 and is different from the normal direction data transmission system 210 shown in FIG. 1, The transmission system 220 and the integrated management system 230 may be replaced by the forward direction data transmission system 210-2, the reverse one-way data transmission system 220-2, and the integrated management system 230-2 . The forward direction data transmission system 210-2 further includes an internal / external intermediate network control unit 216 located in the white zone C in the forward direction data transmission system 210 shown in FIG. 1, The data transmission system 220-2 may further include an outer / inner intermediate network control unit 226 located in the white zone C in the reverse unidirectional data transmission system 220 shown in FIG. The integrated management system 230-2 includes an internal / external intermediate network control management unit 242 and an external / internal intermediate network control management unit 244, which are located in the white zone C, in the integrated management system 230 shown in FIG. As shown in FIG.

The function of the blocks having the same reference numerals as the blocks shown in FIG. 1 among the blocks shown in FIG. 6 will be easily understood by referring to the description of FIG. 1, and only the functions of the added blocks will be described here .

The internal / external network control unit 216 receives the data transmitted from the internal network transmission apparatus 212 through the first full-direction data line DL11 and transmits the received data to the second full-direction data line DL12. To the external network receiving device 214 via the network interface 210.

The internal / external intermediate network control management unit 242 receives the management information through the first top-end direction management information line ML11-1 and transmits the received management information through the second top-end direction management information line ML11-2 To the external network reception control management unit 234.

The external / internal inter-network control management unit 244 receives the management information through the first reverse unidirectional management information line ML12-1, and transmits the received management information through the second reverse unidirectional management information line ML12-2 To the internal network reception control management unit 238.

The external / internal network control unit 226 receives the data transmitted from the external network transmission apparatus 222 through the first reverse unidirectional data line DL21 and transmits the received data to the second reverse unidirectional data line DL22. To the internal network receiving apparatus 224. [

The transmission path of the management policy information of the dual unidirectional data and management information transmission system 120 shown in FIG. 6 is the same as the transmission path of the embodiments described with reference to FIGS. 3A through 3 D, To 4d. ≪ / RTI > When the management information is transmitted from the internal network transmission control management unit 232 to the external network reception control management unit 234, the management information is transmitted through the internal / external network control management unit 242 and the external network transmission control management unit 236, When the management information is transmitted to the internal network reception control management unit 238 from the external / internal network control management unit 244.

FIG. 7 is a block diagram showing a configuration of a dual unidirectional data and management information transmission system according to the embodiment of the present disclosure. The dual unidirectional data and management information transmission system 130 includes a dual unidirectional data and management information transmission system The integrated management system 230-2 shown in FIG. 6 may be replaced with the integrated management system 230-3. The integrated management system 230-3 includes an internal network transmission control management unit 232, an internal / external intermediate network control management unit 242, an external network transmission control management unit 234 of the integrated management system 230-2 shown in FIG. The internal network transmission control management unit 236, the external / internal intermediate network control management unit 244, the internal network reception control management unit 238 and the integrated management unit 240 are connected to the internal network transmission control management unit 232-3, The external network transmission control management unit 236-3, the external / internal intermediate network control management unit 244-3, the internal network reception control unit 234-3, A control management unit 238-3, and an integrated management unit 240-3. The integrated management unit 240-3 may be located in the white zone C, unlike the integrated management unit 240 shown in FIG.

The function of the blocks having the same reference numerals as the blocks shown in FIG. 6 among the blocks shown in FIG. 7 will be easily understood with reference to FIG. 6, and only the functions of the replaced blocks will be described here .

The integrated management unit 240-3 may receive the management status information transmitted from the internal / external intermediate network control management unit 242-3 and may transmit the management policy information to the external / internal intermediate network control unit 244-3 .

The external / internal intermediate network control management unit 244-3 receives the management policy information transmitted from the integrated management unit 240-3, and receives the management status information transmitted through the first reverse unidirectional management information line ML12-1 And transmits the management policy information or the management status information through the second unidirectional management information line ML12-2.

The internal network reception control management unit 238-3 receives the management policy information or the management status information transmitted through the second unidirectional management information line ML12-2 and manages the management policy information or the management status information via the internal network transmission control management unit 232-3 Policy information or management status information can be transmitted.

The internal network transmission control management unit 232-3 receives the management policy information or the management status information transmitted from the internal network reception control management unit 238-3 and manages the management policy information or the management status information via the first full direction management information line ML11-1 Policy information or management status information can be transmitted.

The internal / external intermediate network control management unit 242-3 receives the management policy information or the management status information through the first full-direction management information line ML11-1, and receives the management status information from the integrated management unit 240-3 And transmits the management policy information to the second full-direction management information line ML11-2.

The external network reception control management unit 234-3 receives the management policy information transmitted through the second top-end direction management information line ML11-2 and transmits the management policy information or management information to the external network transmission control management unit 236-3. Status information can be transmitted.

The external network transmission control management unit 236-3 transmits the management policy information or the management status information transmitted from the external network reception control management unit 234-3 to the external / internal middle information management unit 234-2 through the first unidirectional management information line ML12-1. To the network control management unit 244-3.

In the dual unidirectional data and management information transmission system 130 shown in FIG. 7, the management policy information includes an integrated management unit 240-3, an external / internal intermediate network control management unit 244-3, an internal network reception control management unit 238 3), the internal network transmission control management unit 232-3, the internal / external intermediate network control management unit 242-3, the external network reception control management unit 234-3, and the external network transmission control management unit 236-3. Lt; / RTI > Management status information includes an external network reception control management unit 234-3, an external network transmission control management unit 236-3, an external / internal intermediate network control management unit 244-3, an internal network reception control management unit 238-3, The internal network transmission control management unit 232-3, the internal / external intermediate network control management unit 242-3, and the integrated management unit 240-3.

FIG. 8 is a block diagram showing a configuration of a dual unidirectional data and management information transmission system according to an embodiment of the present disclosure. The dual unidirectional data and management information transmission system 140 includes a dual unidirectional data and management information transmission system Can be configured by replacing the integrated management system 230 of the server 100 with the integrated management system 230 '. The integrated management system 230-4 includes an integrated management unit 240 ', an internal network transmission control management unit 232', an external network reception control management unit 234 ', an external network transmission control management unit 236' And a control management unit 238 '.

The description of the functions of the blocks having the same reference numerals as the blocks of the dual unidirectional data and the management information transmission system 100 shown in FIG. 1 of the blocks shown in FIG. 8 will be omitted here, Will be described only in terms of the functions of the devices.

The integrated management unit 240 'may perform the same function as the integrated management unit 240 shown in FIG. In addition, the integrated management unit 240 'may receive the management status information through the third unidirectional management information line ML32 and transmit the management policy information through the third top-end direction management information line ML31.

The internal network transmission control management unit 232 'may perform the same function as the internal network transmission control management unit 232 shown in FIG. In addition, the internal network transmission control management unit 232 'can receive the management status information through the third reverse unidirectional management information line ML32.

The external network reception control management unit 234 'may perform the same function as the external network reception control management unit 234 shown in FIG. In addition, the external network reception control management unit 234 'can transmit the management status information through the third unidirectional management information line ML32.

The internal network reception control management unit 238 'may perform the same function as the internal network reception control management unit 238 shown in FIG. In addition, the internal network reception control management unit 238 'can transmit the management policy information through the third top-end direction management information line ML31.

The external network transmission control management unit 236 'may perform the same function as the external network reception control management unit 236 shown in FIG. In addition, the external network transmission control management unit 236 'can receive the management policy information through the third top-end direction management information line ML31.

9A to 9E are views illustrating embodiments for explaining a transmission path of management policy information of the dual unidirectional data and management information transmission system 140 shown in FIG.

9A to 9E, P1, P2, P3 and P4 denote the internal network transmitting apparatus 212 ', the internal network receiving apparatus 224', the external network receiving apparatus 214 'and the external network transmitting apparatus 222' Management policy information transmitted to each of the internal network transmission control management unit 232, the internal network reception control management unit 238, the external network reception control management unit 234, and the external network transmission control management unit 236, . 9A to 9E, " + " may mean a combination of information.

9A, the integrated management unit 240 'separates the management policy information P1, P2, P3, and P4 into the management policy information P1 and P3 and the management policy information P2 and P4, The management policy information P 1 + P 3 is combined with the management policy information P 1 and P 3 to transmit the management policy information P 1 + P 3 to the internal network transmission control management unit 232 ' To the external network transmission control management unit 236 '. The internal network transmission control management unit 232 'separates the management policy information P1 + P3 and applies the management policy information P1 to the internal network transmission apparatus 212. The management policy information P3 is transmitted to the external network reception control To the management unit 234 '. The external network reception control management unit 234 'may receive the management policy information P3 and apply the management policy information P3 to the external network receiving apparatus 214. [ The external network transmission control management unit 236 'separates the management policy information P2 + P4 and applies the management policy information P4 to the external network transmission apparatus 222, and the management policy information P2 is the internal network reception control To the management unit 238 '. The internal network reception control management unit 238 'may apply the management policy information P2 to the internal network reception apparatus 224. [

Referring to FIG. 9B, the integrated management unit 240 'associates management policy information P1, P2, P3, and P4 with management policy information P1 and P3, management policy information P2, and management policy information P4 The management policy information P 1 and P 3 are combined and the management policy information P 1 + P 3 is transmitted to the internal network transmission control management unit 232 ', and the management policy information P 2 is transmitted to the internal network reception control management unit 238' And the management policy information P4 may be transmitted to the external network transmission control management unit 236 '. The internal network transmission control management unit 232 'separates the management policy information P1 + P3 and applies the management policy information P1 to the internal network transmission apparatus 212 and the management policy information P3 is transmitted to the external network reception control & (234). The external network reception control management unit 234 may apply the management policy information P3 to the external network receiving apparatus 214. [ The internal network reception control management unit 238 'may apply the management policy information P2 to the internal network reception apparatus 224. [ The external network transmission control management unit 236 'may apply the management policy information P4 to the external network transmission apparatus 222. [

Referring to FIG. 9C, the integrated management unit 240 'combines the management policy information P1, P2, P3, and P4 to transmit the management policy information P1 + P2 + P3 + P4 to the internal network transmission control management unit 232' Lt; / RTI > The internal network transmission control management unit 232 'separates the management policy information P1 + P2 + P3 + P4 and applies the management policy information P1 to the internal network transmission apparatus 212 and the management policy information P3 To the external network reception control management unit 234, and the management policy information (P2 + P4) to the internal network reception control management unit 238 '. The external network reception control management unit 234 'may apply the management policy information P3 to the external network receiving apparatus 214. [ The internal network reception control and management unit 238 'separates the management policy information P2 + P4 and applies the management policy information P2 to the internal network receiving apparatus 224 and the management policy information P4 is transmitted to the external network transmission control To the management unit 236 '. The external network transmission control management unit 236 'may apply the management policy information P4 to the external network transmission apparatus 222. [

9D, the integrated management unit 240 'combines the management policy information P1, P2, P3, and P4 to transmit the management policy information P1 + P2 + P3 + P4 to the internal network reception control management unit 238' Lt; / RTI > The internal network reception control management unit 238 'separates the management policy information P1 + P2 + P3 + P4 and applies the management policy information P2 to the internal network receiving apparatus 224, ) To the internal network transmission control management unit 232 ', and the management policy information P4 to the external network transmission control management unit 236'. The external network transmission control management unit 236 'may apply the management policy information P4 to the external network transmission apparatus 222. [ The internal network transmission control management unit 232 'separates the management policy information P1 + P3 and applies the management policy information P1 to the internal network transmission apparatus 212. The management policy information P3 is transmitted to the external network reception control To the management unit 234 '. The external network reception control management unit 236 'may apply the management policy information P3 to the external network receiving apparatus 214. [

9E, the integrated management unit 240 'separates the management policy information P1, P2, P3, and P4 into the management policy information P1 and P3 and the management policy information P2 and P4, The management policy information P 1 + P 3 is combined with the management policy information P 1 and P 3 to transmit the management policy information P 1 + P 3 to the internal network transmission control management unit 232 ' To the internal network reception control management unit 238 '. The internal network transmission control management unit 232 'separates the management policy information P1 + P3 and applies the management policy information P1 to the internal network transmission apparatus 212. The management policy information P3 is transmitted to the external network reception control To the management unit 234 '. The external network reception control management unit 234 'may receive the management policy information P3 and apply the management policy information P3 to the external network receiving apparatus 214. [ The internal network reception control and management unit 238 'separates the management policy information P2 + P4 and applies the management policy information P2 to the internal network receiving apparatus 224 and the management policy information P4 is transmitted to the external network transmission control To the management unit 236 '. The external network transmission control management unit 236 'may apply the management policy information P4 to the external network transmission apparatus 222. [

The transmission path of the management policy information shown in FIGS. 9A to 9E is described as an example in which the integrated management unit 240 'generates and transmits the management policy information P1, P2, P3 and P4, May generate and transmit at least one management policy information (P1, P2, P3, or P4). In this case, each of the internal network transmission control management unit 232 ', the internal network reception control management unit 238', the external network reception control management unit 234 ', and the external network transmission control management unit 236' If the management policy information is included in the management policy information, it is determined whether the management policy information is included in the management policy information. If the management policy information is included in the management policy information, If other management policy information is included in the received management policy information, the other management policy information is transmitted to the next node according to the transmission path of the management policy information, Even if the management policy information of the management policy information is not included in the management policy information, Information can be transmitted to the next stage.

10A to 10E are diagrams illustrating embodiments for explaining a transmission path of management status information of the dual unidirectional data and management information transmission system 140 shown in FIG.

In FIGS. 10A to 10E, C1, C2, C3 and C4 denote the internal network transmission control management unit 232 ', the internal network reception control management unit 238', the external network reception control management unit 234 ' Status information collected from each of the internal network transmitting apparatus 212, the internal network receiving apparatus 224, the external network receiving apparatus 214 and the external network transmitting apparatus 222 by the network management apparatus 236 ' . 10A to 10E, " + " may mean a combination of information.

Referring to FIG. 10A, the external network reception control management unit 234 'may transmit the management status information C3 to the integrated management unit 240'. The internal network transmission control management unit 232 'may transmit the management status information C1 to the integrated management unit 240'. The external network transmission control management unit 236 'can transmit the management status information C4 to the internal network reception control management unit 238'. The internal network reception control management unit 238 'may transmit the management status information C2 + C4 to the unified management unit 240' by combining the management status information C2 and the management status information C4.

Referring to FIG. 10B, unlike FIG. 10A, the external network reception control management unit 234 'can transmit the management status information C3 to the internal network transmission control management unit 232'. The internal network transmission control management unit 232'may transmit the management status information C1 + C3 to the integrated management unit 240 'by combining the management status information C1 and the management status information C3.

Referring to FIG. 10C, in contrast to FIG. 10A, the internal network transmission control management unit 232 'may transmit the management status information C1 to the external network reception control management unit 234'. The external network reception control management unit 234'may transmit the management status information C1 + C3 to the unified management unit 240 'by combining the management status information C1 and the management status information C3.

Referring to FIG. 10D, the external network reception control management unit 234 'can transmit the management status information C3 to the internal network transmission control management unit 232'. The internal network transmission control management unit 232'may transmit the management status information C1 + C3 to the internal network reception control management unit 238 'by combining the management status information C1 and the management status information C3. The external network transmission control management unit 236 'can transmit the management status information C4 to the internal network reception control management unit 238'. The internal network reception control management unit 238 'combines the management status information C2, the management status information C1 + C3, and the management status information C4 to obtain the management status information C1 + C2 + Lt; RTI ID = 0.0 > 240 '. ≪ / RTI >

Referring to FIG. 10E, the external network reception control management unit 234 'may transmit the management status information C3 to the internal network transmission control management unit 232'. The external network transmission control management unit 236 'can transmit the management status information C4 to the internal network reception control management unit 238'. The internal network reception control management unit 238 'may combine the management status information C2 and the management status information C4 to transmit the management status information C2 + C4 to the internal network transmission control management unit 232'. The internal network transmission control management unit 234'combines the management status information C1 + C2 + C3 + C4 by combining the management status information C1, the management status information C3, and the management status information C2 + To the management unit 240 '.

10A to 10E, the unified management unit 240 receives the management status information (C1 + C2 + C3 + C4) and manages the management status information (C1, C2, P3, and P4) to generate new management policy information.

The transmission path of the management status information shown in FIGS. 10A to 10E includes an internal network transmission control management unit 232 ', an internal network reception control management unit 238', an external network reception control management unit 234 ' The internal network transmission control management unit 232 ', the internal network reception control management unit 238', the external network reception control management unit 234 ', and the external network access control management unit 236' And the external network transmission control management unit 236 'collect and transmit the management status information, the same can be transmitted through the same transmission path. In this case, each of the internal network transmission control management unit 232 ', the internal network reception control management unit 238', the external network reception control management unit 234 ', and the external network transmission control management unit 236' The management status information is transmitted to the next stage according to the transmission path of the management status information. If the management status information is received and the management status information is present, the management status information is combined with the received management status information And transmits the combined management status information to the next stage according to the transmission path of the management status information. If the management status information is received even though there is no management status information thereof, It can be transferred as it is.

Although the transmission path of the management policy information and the transmission path of the management status information are described with reference to FIGS. 9A to 9E with reference to FIGS. 10A to 10E, the first and last true-link management information lines ML11, One reverse unidirectional management information line ML12, a third normal direction management information line ML31, a third reverse unidirectional management information line ML32, and various paths satisfying the signal transmission directions of the lines between the blocks are additionally provided Can exist.

FIG. 11 is a block diagram illustrating the configuration of a dual unidirectional data and management information transmission system according to an embodiment of the present disclosure. The dual unidirectional data and management information transmission system 150 includes a dual unidirectional data and management information transmission system May be configured by replacing the integrated management system 230-1 of the server 140 with the integrated management system 230-1 '. The integrated management system 230-1 'includes an integrated management unit 240-1', an internal network transmission control management unit 232-1 ', an external network reception control management unit 234-1', an external network transmission control management unit 236 -1 '), and an internal network reception control management unit 238-1'.

The description of the function of the blocks having the same reference numerals as the blocks of the dual unidirectional data and the management information transmission system 100 shown in FIG. 5 of the blocks shown in FIG. 11 will be omitted here, Will be described only in terms of the functions of the devices.

The integrated management unit 240-1 'may perform the same function as the integrated management unit 240-1 shown in FIG.

The internal network transmission control management unit 232-1 'may perform the same function as the internal network transmission control management unit 232-1 shown in FIG. In addition, the internal network transmission control management unit 232-1 'can receive the management status information transmitted through the third reverse unidirectional management information line ML32.

The external network reception control management unit 234-1 'may perform the same function as the external network reception control management unit 234-1 shown in FIG. In addition, the external network reception control management unit 234-1 'can transmit the management status information through the third unidirectional management information line ML32.

The external network transmission control management unit 236-1 'can perform the same function as the external network transmission control management unit 236-1 shown in FIG. In addition, the external network transmission control management unit 236-1 'can receive the management policy information through the third top-end direction management information line ML31.

The internal network reception control management unit 238-1 'may perform the same function as the internal network reception control management unit 238-1 shown in FIG. In addition, the internal network reception control management unit 238-1 'can transmit the management policy information through the third top -ology management information line ML31.

FIG. 12 is a block diagram showing a configuration of a dual unidirectional data and management information transmission system according to an embodiment of the present disclosure. The dual unidirectional data and management information transmission system 160 includes a dual unidirectional data and management information transmission system The integrated management system 230-2 of the server 120 may be replaced with the integrated management system 230-2 '. The integrated management system 230-2 'includes an integrated management unit 240', an internal network transmission control management unit 232 ', an internal / external intermediate network control management unit 242', an external network reception control management unit 234 ' A network transmission control management unit 236 ', an external / internal intermediate network control management unit 244', and an internal network reception control management unit 238 '.

The description of the functions of the blocks having the same reference numerals as the blocks of the dual unidirectional data and management information transmission system 120 shown in FIG. 6 among the blocks shown in FIG. 12 will be omitted. Here, Will be described only in terms of the functions of the devices.

The integrated management unit 240 'may perform the same function as the integrated management unit 240 shown in FIG. In addition, the integrated management unit 240 'may receive the management status information through the third unidirectional management information line ML32 and may transmit the management policy information through the third top-end direction management information line ML31.

The internal network transmission control management unit 232 'may perform the same function as the internal network transmission control management unit 232 shown in FIG. In addition, the internal network transmission control management unit 232 'can receive the management status information through the third reverse unidirectional management information line ML32.

The internal / external intermediate network control management unit 242 'may perform the same operations as the internal / external intermediate network control management unit 242 shown in FIG.

The external network reception control management unit 234 'may perform the same function as the external network reception control management unit 234 shown in FIG. In addition, the external network reception control management unit 234 'can transmit the management status information through the third unidirectional management information line ML32.

The external network transmission control management unit 236 'may perform the same function as the external network transmission control management unit 236 shown in FIG. In addition, the external network transmission control management unit 236 'can receive the management policy information through the third top-end direction management information line ML31.

The external / internal network control management unit 244 'may perform the same function as the external / internal network control management unit 244 shown in FIG.

The internal network reception control management unit 238 'may perform the same function as the internal network reception control management unit 238 shown in FIG. In addition, the internal network reception control management unit 238 'can transmit the management policy information through the third top-end direction management information line ML31.

The transmission path of the management policy information of the dual unidirectional data and management information transmission system 160 shown in FIG. 12 is the same as the transmission path of the embodiments described with reference to FIGS. 9A to 9D, And < RTI ID = 0.0 > 10e. ≪ / RTI > However, when the management information is transmitted between the internal network transmission control management unit 232 'and the external network reception control management unit 234', the management information is transmitted through the internal / external intermediate network control management unit 242 ' When the management information is transmitted between the management unit 236 'and the internal network reception control and management unit 238', it can be transmitted through the external / internal network control management unit 244 '.

13 is a block diagram showing the configuration of the dual unidirectional data and management information transmission system 170 of the embodiment according to the present disclosure, in which the dual unidirectional data and management information transmission system 170 includes the dual unidirectional data and management May be configured by replacing the integrated management system 230-3 of the information transmission system 130 with the integrated management system 230-3 '. The integrated management system 230-3 'includes an integrated management unit 240-3', an internal network transmission control management unit 232-3 ', an internal / external intermediate network control management unit 242-3' The internal network control management unit 234-3 ', the external network transmission control management unit 236-3', the external / internal network control management unit 244-3 ', and the internal network reception control management unit 238-3' .

The description of the functions of the blocks having the same reference numerals as the blocks of the dual unidirectional data and the management information transmission system shown in FIG. 7 among the blocks shown in FIG. 13 will be omitted. Here, .

The integrated management unit 240-3 'may perform the same function as the integrated management unit 240-3 shown in FIG.

The internal network transmission control management unit 232-3 'may perform the same function as the internal network transmission control management unit 232-3 shown in FIG. In addition, the internal network transmission control management unit 232-3 'can receive the management status information through the third reverse unidirectional management information line ML32.

The internal / external intermediate network control management unit 242-3 'can perform the same operation as the internal / external intermediate network control management unit 242-3 shown in FIG.

The external network reception control management unit 234-3 'may perform the same function as the external network reception control management unit 234-3 shown in FIG. In addition, the external network reception control management unit 234-3 'can transmit the management status information through the third unidirectional management information line ML32.

The external network transmission control management unit 236-3 'may perform the same function as the external network transmission control management unit 236-3 shown in FIG. In addition, the external network transmission control management unit 236-3 'can receive the management policy information through the third top-end direction management information line ML31.

The external / internal network control management unit 244-3 'may perform the same function as the external / internal network control management unit 244-3 shown in FIG.

The internal network reception control management unit 238-3 'may perform the same function as the internal network reception control management unit 238 shown in FIG. In addition, the internal network reception control management unit 238-3 'can transmit the management policy information through the third top-end direction management information line ML31.

8 and 11, only the internal network transmission control management unit, the external network reception control management unit, and the integrated management unit are used when only the forward direction data transmission system is used and the reverse unidirectional data transmission system is not used. The reception control management unit, and the external network transmission control management unit may not be used. Conversely, in the case of using only the reverse unidirectional data transmission system without using the forward direction data transmission system, the internal network transmission control management unit and the external network reception control management unit are not used, but the integrated management unit, It can be used only by the external network transmission control department.

In the above-described FIGS. 12 and 13, when only the forward direction data transmission system is used and the reverse unidirectional data transmission system is not used, the internal network transmission control management unit, the internal / external middle network control management unit, It can be used only by the integrated management department, and can not use the internal network reception control management unit, the external / internal middle network control management unit, and the external network transmission control management unit. On the contrary, in the case of using only the reverse unidirectional data transmission system without using the forward direction data transmission system, the internal network transmission control management unit, the internal / external intermediate network control management unit, and the external network reception control management unit are not used, , Internal network reception control management, external / internal middle network control management, and external network transmission control management.

1, 5, 6, 7, 8, 11, 12, and 13, the forward direction data line, the reverse unidirectional data line, the forward direction management information line, and the reverse unidirectional management information line use the bidirectional communication line It may be a logical unidirectional line for transmitting data in one direction or connected only to the receiving end on one side and the receiving end on the other side and the transmitting end on one side and the transmitting end on the other side are disconnected or only the transmitting end on the other side is connected, A physical unidirectional line in which the transmitting end of the transmitting end and the receiving end of the other end are cut off. Although the forward direction data line and the forward direction management information line are shown as two different lines, they can be composed of one line. The reverse unidirectional management information line and the reverse unidirectional management information line are also shown as two different lines, .

1, 5, 6, 7, 8, 11, 12, and 13, the line from the external network reception control management unit to the external network transmission control management unit is transmitted from the external network reception control management unit to the external network transmission control management unit. Directional communication line or a unidirectional line for transmitting data.

1, 5, 6, 7, 8, 11, 12, and 13, the bidirectional management information transmission line between the integrated management unit and the internal network transmission control management unit, the bidirectional management information between the integrated management unit and the internal network reception control management unit The transmission line, and the bidirectional management information transmission line between the internal network transmission control management unit and the internal network reception control management unit are shown as one line. However, each of the bidirectional management information transmission lines is composed of two lines, one used for transmitting the management policy information and the other used for transmitting the management status information.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, As will be understood by those skilled in the art. It is to be understood that the above-described embodiments are illustrative and non-restrictive in every respect.

100, 110, 120, 130, 140, 150, 160, 170: dual unidirectional data and management information transmission system
300: Internal network 400: External network
310, 320: internal network system 410, 420: external network system
210, 210-2: a forward direction data transmission system
220, 220-2: reverse unidirectional data transmission system
212: internal network transmission device 214: external network reception device
222: external network transmission device 224: internal network reception device
230, 230-1, 230-2, 230-3, 230 ', 230-1', 230-2 ', 230-3'
212-1: internal network information collecting and linking unit 212-2: internal network unidirectional transmitter
214-1: External network unidirectional reception unit 214-2: External network information delivery linkage unit
216 internal / external network control unit 226 external / internal network control unit
222-1: External network information collecting unit 222-2: External network unidirectional transmitter
224-1: internal network unidirectional reception unit 224-2: internal network information delivery linkage unit
232, 232-1, 232-3, 232 ', 232-1', 232-3 '
234, 234-1, 234-3, 234 ', 234-1', 234-3 ': External network reception control section
238, 238-1, 238-3, 238 ', 238-1', 238-3 ': Internal network reception control section
236, 236-1, 236-3, 236 ', 236-1', 236-3 ': External network transmission control management unit
242, 242 ', 242-3': internal / external middle network control management unit
244, 244 ', 244-3': External / Internal Medium Network Control Department
240, 240-1, 240-3, 240 ', 240-1', 240-3 '

Claims (28)

  1. A forward direction data transmission system including an internal network transmission apparatus connected to an internal network, an external network reception apparatus connected to an external network, and a first full direction data line for transmitting data from the internal network transmission apparatus to the external network reception apparatus;
    And a first reverse unidirectional data transmission line for transmitting data from the external network transmission apparatus to the internal network reception apparatus, and an internal network transmission apparatus connected to the external network, system; And
    An internal network transmission control management unit for transmitting management policy information to each of the internal network transmission apparatus, the external network transmission apparatus, the external network transmission apparatus, and the internal network reception apparatus and collecting management status information from each of the internal network transmission apparatuses, Control management unit, external network transmission control management unit, and internal network reception control management unit; A first forward direction management information line for transmitting the management policy information or the management status information from the internal network transmission control management unit to the external network reception control management unit; A first unidirectional management information line for transmitting the management policy information or the management status information from the external network transmission control management unit to the internal network reception control management unit; And the management policy information for transmitting the management policy information through the internal network transmission control management unit, the external network reception control management unit, the external network transmission control management unit, and the internal network reception control management unit, The external network transmission control management unit, the external network transmission control management unit, and the internal network reception control management unit according to the transmission path of the management status information for transmitting the management status information, And an integrated management system for receiving the management status information,
    Each of the internal network transmission control management unit, the external network reception control management unit, the external network transmission control management unit, and the internal network reception control management unit
    Wherein the management policy information includes at least one of the management policy information included in the management policy information and the management policy information included in the management policy information, If the management policy information included in the received management policy information includes other management policy information than the management policy information included in the received management policy information, If the received management policy information includes other management policy information even if the received management policy information does not include the management policy information in the received management policy information, Transfer to the next stage as is,
    If the management status information of the user is present, the management status information of the user is transmitted to the next stage according to the transmission path of the status information. If the status information of the user is received and the status information of the user is present, And transmits the combined management status information to the next stage according to a transmission path of the management status information, and when the management status information is received even though the management status information is not present, And transmits the management status information to the next stage according to the transmission path of the management status information.
  2. The system according to claim 1, wherein the integrated management unit
    An integrated management policy management unit that transmits the management policy information set by the authorized administrator or transmits the management policy information in which the management status information is reflected; And
    And a unified management status management unit for receiving and managing the management status information and transmitting the management status information to the integrated management policy management unit.
  3. The method of claim 1, wherein the internal network transmission apparatus, the internal network reception apparatus, the internal network transmission control management unit, and the internal network reception control management unit are integrally configured, The external network transmission control management unit, and the external network transmission apparatus are integrally configured.
  4. The method of claim 1, wherein the internal network transmission apparatus and the internal network transmission control management unit are integrally formed, the external network reception apparatus and the external network reception control management unit are integrally formed, Wherein the transmission control management unit is integrally configured and the internal network reception apparatus and the internal network reception control management unit are integrally configured.
  5. The method of claim 1, wherein the internal network transmission apparatus, the external network reception apparatus, the internal network transmission control management unit, and the external network reception control management unit are integrally configured, The internal network reception control management unit, and the external network transmission control management unit are integrally configured.
  6. The method as claimed in claim 1, wherein the first forward direction data line and the first forward direction management information line are configured separately and can be composed of the same line, and the first reverse unidirectional data line and the first reverse directional data line A dual unidirectional data and management information transmission system that can be configured separately and can be configured on the same line.
  7. delete
  8. The method of claim 1, wherein the internal network, the internal network transmission apparatus, the internal network reception apparatus, the internal network transmission control management unit, the internal network reception control management unit, and the integrated management unit are located in a first security area, Wherein the external network, the external network reception apparatus, the external network reception control management unit, the external network transmission control management unit, and the external network transmission apparatus are located in a non-security area.
  9. The method of claim 8, wherein the internal network transmission apparatus
    An internal network information collecting / linking unit communicating with a first internal network system connected to the internal network to transmit / receive data to / from the first internal network system; And
    And an internal network unidirectional transmission unit for transmitting data transmitted from the internal network information collecting and linking unit through a first full direction data line,
    The external network receiving apparatus
    An external network unidirectional receiver for receiving data transmitted through the first forward direction data line; And
    And an external network information communicating unit for communicating with a first external network system connected to the external network and transmitting data transmitted from the external network unidirectional receiver to the first external network system,
    The external network transmission apparatus
    An external network information collecting / linking unit communicating with a second external network system connected to the external network to transmit / receive data to / from the second external network system; And
    And an external network unidirectional transmission unit for transmitting data transmitted from the external network information collecting and linking unit through a first reverse unidirectional data line,
    The internal network receiving apparatus
    An internal network unidirectional receiver for receiving data transmitted through the first reverse unidirectional data line; And
    And an internal network information transmitting / receiving unit for transmitting data transmitted from the internal network unidirectional receiver to the second internal network system by communicating with a second internal network system connected to the internal network.
  10. The method of claim 8, wherein the integrated management unit transmits the management policy information to the internal network transmission control management unit or receives the management status information from the internal network reception control management unit,
    Wherein the internal network transmission control management unit transmits the management policy information or the management status information to the first full direction management information line,
    Wherein the external network access control management unit receives the management policy information or the management status information through the first full direction management information line and transmits the management policy information or the management status information to the external network transmission control management unit,
    Wherein the external network transmission control management unit transmits the management policy information or the management status information through the first reverse unidirectional management information line,
    Wherein the internal network reception control management unit receives the management policy information or the management status information through the first reverse unidirectional management information line.
  11. The system of claim 10, wherein the internal network transmission control management unit further transmits and receives the management policy information or the management status information to the internal network reception control management unit.
  12. 12. The system of claim 11, wherein the integrated management unit transmits the management policy information to the internal network reception control management unit and receives the management status information from the internal network transmission control management unit.
  13. 10. The method as claimed in claim 9, wherein the management policy information comprises an allowed or denied system address, a service,
    The integrated management unit transmits the management policy information to the external network reception control management unit or the external network transmission control management unit through the internal network transmission control management unit or the internal network reception control management unit,
    The internal network transmission control management unit, the external network reception control management unit, the internal network reception control management unit, and the external network transmission control management unit include the internal network information collection linkage unit, the external network information delivery linkage unit, And the external network information collecting and linking unit,
    Wherein the internal network information collecting and linking unit, the external network information delivering linking unit, the external network information collecting linking unit, and the internal network information delivering linking unit are connected to the internal network system and the external network system, And transmits the monitoring history information, which is permitted or denied, to the management status information.
  14. The method of claim 9, wherein the management policy information is communication request information transmitted from the internal network transmission control management unit or the internal network reception control management unit to the external network reception control management unit or the external network transmission control management unit, Is information on at least one communication channel allocated when the first forward direction data line or the first reverse direction data line is composed of a plurality of communication channels,
    Wherein the internal network transmission control management unit, the external network reception control management unit, the external network transmission control management unit, and the internal network reception control management unit transmit the information on the allocated at least one communication channel to the internal network unidirectional transmission unit, Directional receiving unit, the external network unidirectional transmitting unit, and the internal network unidirectional receiving unit,
    The internal network unidirectional transmission unit, the internal network unidirectional reception unit, the external network unidirectional reception unit, and the external network unidirectional transmission unit transmit data from the internal network unidirectional transmission unit to the external unidirectional reception unit through the allocated at least one communication channel. Or the data transmission from the external network unidirectional transmission unit to the internal network unidirectional reception unit, denies data transmission through the communication channels except for the allocated at least one communication channel, And transmits the monitoring history to the management status information.
  15. 11. The system of claim 10, wherein the integrated management system
    A second unidirectional management information line for transmitting the management status information from the external network reception control management unit to the integrated management unit or the internal network transmission control management unit; And
    And a second full direction management information line for transmitting the management policy information from the integrated management unit or the internal network reception control management unit to the external network transmission control management unit.
  16. The system of claim 15, wherein the internal network transmission control management unit further transmits / receives the management policy information or the management status information to / from the internal network reception control management unit.
  17. The method as claimed in claim 15, wherein only the forward direction data transmission system is used, and when the reverse unidirectional data transmission system is not used, only the internal network transmission control management unit, the external network reception control management unit, Wherein the dual unidirectional data and management information transmission system comprises:
  18. 16. The method of claim 15, wherein only the reverse unidirectional data transmission system is used, and when the forward direction data transmission system is not used, only the external network transmission control management unit, the internal network reception control management unit, Wherein the dual unidirectional data and management information transmission system comprises:
  19. 11. The data transmission system according to claim 10, wherein the forward direction data transmission system comprises: a second forward direction data line connected to the external network receiving device; and a second forward direction data line connected between the first forward direction data line and the second forward direction data line, And an internal / external intermediate network control unit for transmitting data received through the forward direction data line to the second forward direction data line,
    Wherein the reverse unidirectional data transmission system comprises a second reverse unidirectional data line connected to the internal network receiving device and a second reverse unidirectional data line connected between the first reverse unidirectional data line and the second reverse unidirectional data line, And an external / internal intermediate network controller for transmitting the received data to the second reverse unidirectional data line,
    Wherein the integrated management system comprises: a second forward direction management information line connected to the external network reception control management unit; and a second forward direction management information line connected between the first forward direction management information line and the second forward direction management information line, A second reverse unidirectional management information line connected to the internal network reception control management unit, and a second reverse unidirectional management information line connected to the internal network external control management unit, And an external / internal intermediate network control management unit connected between the information line and the second reverse unidirectional management information line for transmitting data received through the first reverse unidirectional management information line to the second reverse unidirectional management information line and,
    Wherein the internal / external intermediate network control unit, the external / internal intermediate network control unit, the internal / external intermediate network control management unit, and the external / Dual unidirectional data and management information transmission system located in security area.
  20. The system of claim 19, wherein the internal network transmission control management unit further transmits / receives the management policy information or the management status information to / from the internal network reception control management unit.
  21. 21. The system of claim 20, wherein the integrated management system
    A third unidirectional management information line for transmitting the management status information from the external network reception control management unit to the integrated management unit or the internal network transmission control management unit; And
    And a third top-end direction management information line for transmitting the management policy information from the integrated management unit or the internal network reception control management unit to the external network transmission control management unit.
  22. The method as claimed in claim 21, wherein only the forward direction data transmission system is used, and when the reverse unidirectional data transmission system is not used, the internal network transmission control management unit, the internal / The management unit, and the integrated management unit.
  23. The method as claimed in claim 21, wherein, when only the reverse unidirectional data transmission system is used and the forward direction data transmission system is not used, the external network transmission control management unit, the external / internal intermediate network control management unit, The management unit, and the integrated management unit.
  24. 2. The method of claim 1, wherein the internal network, the internal network transmission apparatus, the internal network reception apparatus, the internal network transmission control management unit, and the internal network reception control management unit are located in a first security area, Wherein the external network, the external network receiving apparatus, the external network reception control management unit, the external network transmission control management unit, and the external network transmission apparatus are located in a non-security area, And a dual unidirectional data and management information transmission system located between the first security area and the non-security area.
  25. 25. The system of claim 24, wherein the integrated management system
    A second forward direction management information line for transmitting the management status information from the internal network transmission control management unit to the integrated management unit; And
    And a second unidirectional management information line for transmitting the management policy information from the integrated management unit to the internal network reception control management unit,
    Wherein the integrated management unit receives the management status information via the second full direction management information line and transmits the management policy information to the second unidirectional management information line,
    Wherein the internal network reception control management unit receives the management policy information or the management status information transmitted through the first reverse unidirectional management information line and transmits the management policy information or the management status information to the internal network transmission control management unit and,
    Wherein the internal network transmission control management unit transmits the management policy information through the first full direction management information line,
    Wherein the external network reception control management unit receives the management policy information through the first full direction management information line and transmits the management policy information or the management status information to the external network transmission control management unit,
    Wherein the external network transmission control management unit transmits the management policy information or the management status information through the first reverse unidirectional management information line.
  26. 26. The system of claim 25, wherein the integrated management system
    A third unidirectional management information line for transmitting the management status information from the external network reception control management unit to the internal network transmission control management unit; And
    And a third top-end direction management information line for transmitting the management policy information from the internal network reception control management unit to the external network transmission control management unit.
  27. The mobile communication terminal of claim 24, wherein the forward direction data transmission system comprises: a second forward direction data line connected to the external network receiving device; and a second forward direction data line connected between the first forward direction data line and the second forward direction data line, And an internal / external intermediate network control unit for transmitting data received through the forward direction data line to the second forward direction data line,
    Wherein the reverse unidirectional data transmission system comprises a second reverse unidirectional data line connected to the internal network receiving device and a second reverse unidirectional data line connected between the first reverse unidirectional data line and the second reverse unidirectional data line, And an external / internal intermediate network controller for transmitting the received data to the second reverse unidirectional data line,
    Wherein the integrated management system comprises: a second forward direction management information line connected to the external network reception control management unit; and a second forward direction management information line connected between the first forward direction management information line and the second forward direction management information line, A second reverse unidirectional management information line connected to the internal network reception control management unit, and a second reverse unidirectional management information line connected to the internal network external control management unit, And an external / internal intermediate network control management unit connected between the information line and the second reverse unidirectional management information line for transmitting data received through the first reverse unidirectional management information line to the second reverse unidirectional management information line and,
    Wherein the integrated management unit receives the management status information transmitted from the internal / external intermediate network control management unit, transmits the management policy information to the external / internal intermediate network control management unit,
    Wherein the internal / external intermediate network control unit, the external / internal intermediate network control unit, the internal / external intermediate network control management unit, and the external / internal intermediate network control management unit are configured to control the dual unidirectional data and management Information transmission system.
  28. 28. The system of claim 27, wherein the integrated management system
    A third unidirectional management information line for transmitting the management status information from the external network reception control management unit to the internal network transmission control management unit; And
    And a third top-end direction management information line for transmitting the management policy information from the internal network reception control management unit to the external network transmission control management unit.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101558491B1 (en) * 2015-04-13 2015-10-12 (주) 앤앤에스피 Security gateway system between networks using one-way telecommunication
KR20150142719A (en) * 2014-06-11 2015-12-23 한국전자통신연구원 One-way data transmission and reception system, and one-way data transmission and reception method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150142719A (en) * 2014-06-11 2015-12-23 한국전자통신연구원 One-way data transmission and reception system, and one-way data transmission and reception method
KR101558491B1 (en) * 2015-04-13 2015-10-12 (주) 앤앤에스피 Security gateway system between networks using one-way telecommunication

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