CN105791027B - A kind of detection method of industrial network abnormal interrupt - Google Patents
A kind of detection method of industrial network abnormal interrupt Download PDFInfo
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- CN105791027B CN105791027B CN201610262770.2A CN201610262770A CN105791027B CN 105791027 B CN105791027 B CN 105791027B CN 201610262770 A CN201610262770 A CN 201610262770A CN 105791027 B CN105791027 B CN 105791027B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0677—Localisation of faults
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/069—Management of faults, events, alarms or notifications using logs of notifications; Post-processing of notifications
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Environmental & Geological Engineering (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The present invention relates to a kind of detection methods of industrial network abnormal interrupt, the described method includes: specific deployment scenario of the user according to industrial network, the rule of detection industrial network abnormal interrupt is set, and the rule is stored in the memory of industrial network detection device;Update the final updating time of rule;Industrial network detection device starts a thread or process, the timeout case of timing detected rule, and issues the alarm of industrial network abnormal interrupt according to testing result.The detection method of industrial network abnormal interrupt proposed by the present invention is applicable in the industrial networks detection device such as industrial fireproof wall, industrial audit, when industrial network is abnormal interruption, industrial network detection device issues alarm in first time, helps to position the reason of Network Abnormal interrupts and return to normal production as early as possible.
Description
Technical field
The invention belongs to industrial network security technical fields, and in particular to a kind of detection side of industrial network abnormal interrupt
Method.
Background technique
The network that industrial control system network is made of industrial automation production equipment.Different from IT network, industry is certainly
Dynamicization production equipment is often being in communication with each other for long-time stable, and the communication abnormality interruption between industrial automation equipment is often anticipated
Taste there is the problems such as equipment fault, large effect can be generated to entire industrial production environment.
Existing industrial network abnormality detecting apparatus, such as industrial fireproof wall, industrial audit all will test and focus on work
The detections such as industry network attack, industrial network protection.Application No. is 201210008504.9 Chinese invention patents, disclose one kind
Industrial control network security protection method the described method comprises the following steps: attack for external network, front host is to outside
Network data carries out first layer data filtering and access control, security control host by common storage area come data cached, it is right
Data perform intrusion detection, and to invalid data progress and alarm and notify two sides host, rear host carries out deep layer to data
Filtering and access control, valid data enter internal network;It is attacked for internal network, rear host is to internal network data
Carry out first layer data filtering and access control, security control host come by common storage area it is data cached, to data progress
Intrusion detection to invalid data progress and alarm and notifies two sides host, and front host carries out in-depth filtration and visit to data
Ask control, valid data enters external network.The network security that the invention can improve industrial control system is horizontal, reduces and throws
Money, modernization system and the cost of management.But the invention can not achieve detection related with industrial network abnormal interrupt, work as industry
Production equipment in network can not issue at the first time when being abnormal to be alerted and resumes production in time.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the present invention proposes a kind of detection of industrial network abnormal interrupt
Method, this method are applicable in the industrial networks detection device such as industrial fireproof wall, industrial audit.When industrial network generation is different
When often interrupting, industrial network detection device issues alarm in first time, aids in determining whether the reason of Network Abnormal interrupts and helps
Restore normal production.
In order to achieve the above objectives, the present invention adopts the following technical scheme that.
A kind of detection method of industrial network abnormal interrupt, comprising the following steps:
Step 1, specific deployment scenario of the user according to industrial network, the rule of setting detection industrial network abnormal interrupt,
And the rule is stored in the memory of industrial network detection device.The content of the rule includes: server ip address,
Client ip address, the port that server is monitored, industrial network break period.
Step 2, when there is industrial network message to enter industrial network detection device, the industrial network detection device inspection
Purpose IP address, source IP address and the source port of the message whether respectively with the client ip address of rule, server ip
Location is consistent with server listening port.If be not consistent, this message and the rule are mismatched;If be consistent, rule is updated
The final updating time, final updating time of the rule be the industrial network message enter industrial network detection device when
Between, it is stored with the rule in the memory of industrial network detection device.If this rule has been transmitted across industrial network
Network interrupts alarm, then the industrial network detection device, which sends an industrial network and interrupts, restores alarm.
Step 3, industrial network detection device starts a thread or process, the timeout case of timing detected rule.If
The final updating time that current time (i.e. thread or the system time of process acquisition) subtracts rule is greater than the industry of the rule
The network interruption time, then the industrial network detection device sends an industrial network abnormal interrupt alarm.
Further, the industrial network detection device is industrial fireproof wall or industrial audit network detection device.
Further, the time interval of step 3 timing detected rule timeout case is according to the property of industrial network detection device
It can be determined by experiment.
Compared with prior art, the invention has the following advantages:
The detection method of industrial network abnormal interrupt proposed by the present invention, according to the specific deployment scenario of industrial network, if
The rule of detection industrial network abnormal interrupt is set, and is stored in the memory of industrial network detection device, industrial network detection
Equipment judges whether industrial network is abnormal interruption and issues alarm by the timeout case of timing detected rule.Energy of the present invention
It is enough applied in the industrial networks detection device such as industrial fireproof wall, industrial audit, when industrial network is abnormal interruption, industry
Network detection device issues alarm in first time, helps to position the reason of Network Abnormal interrupts and restores normal raw as early as possible
It produces.
Detailed description of the invention
Fig. 1 is the method flow diagram of timing detected rule timeout case.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
A kind of detection method of industrial network abnormal interrupt, comprising the following steps:
Step 1, specific deployment scenario of the user according to industrial network, the rule of setting detection industrial network abnormal interrupt,
And the rule is stored in the memory of industrial network detection device.The content of the rule includes: server ip address,
Client ip address, the port that server is monitored, final updating time, industrial network break period.
The port that server ip address, client ip address, server in rule are monitored is used to determine what needs detected
Network session;The industrial network break period is that the network session for permitting compliance with above-mentioned condition does not have message to detect by industrial network
The maximum duration of equipment.For example, client ip address 192.168.1.100 in industry spot is to server ip address
192.168.1.1 the communication message of 502 port should exist for a long time, if it exceeds 10 seconds pass through without any message
Industrial network detection device, then there may be Network Abnormals, and industrial network detection device is needed to alarm.So this industrial network
Abnormal interrupt rule should be configured that client ip address be 192.168.1.100, server ip address 192.168.1.1,
Server listening port is 502, and the industrial network break period is 10 seconds.
Step 2, when there is industrial network message to enter industrial network detection device, the industrial network detection device inspection
Purpose IP address, source IP address and the source port of the message whether respectively with the client ip address of rule, server ip
Location is consistent with server listening port, if be not consistent, illustrates that this message and the rule mismatch;If be consistent, rule are updated
The final updating time then, the final updating time be the industrial network message enter industrial network detection device when
Between, it is stored with the rule in the memory of industrial network detection device.If this rule has been transmitted across industrial network
Network interrupts alarm, illustrates to interrupt before session corresponding to this rule, and the message received now is that the recovery after interrupting is logical
The message of letter, then the industrial network detection device, which sends an industrial network and interrupts, restores alarm.
Step 3, industrial network detection device starts a thread or process, the timeout case of timing detected rule.If
The final updating time that current time subtracts rule is greater than the industrial network break period of rule, illustrates the corresponding meeting of the rule
Talk about the industrial network break period that no message has been more than regular configuration by the time of industrial network detection device, the then work
Industry network detection device sends an industrial network abnormal interrupt alarm.
The industrial network detection device refers to such as industrial fireproof wall or industrial audit network detection device.
The time interval of step 3 timing detected rule timeout case passes through experiment according to the performance of industrial network detection device
It determines.It, can be by this to the more demanding of industrial network communication interruption time if the better performances of industrial network detection device
Time interval is set smaller than 1 second;Otherwise this time interval can suitably be increased.
The present invention is not limited to the above embodiments, made any to above embodiment aobvious of those skilled in the art and
The improvement or change being clear to, all protection scope without departing from design of the invention and appended claims.
Claims (3)
1. a kind of detection method of industrial network abnormal interrupt, which comprises the following steps:
Step 1, specific deployment scenario of the user according to industrial network, the rule of setting detection industrial network abnormal interrupt, and will
The rule is stored in the memory of industrial network detection device;The content of the rule includes: server ip address, client
Hold IP address, the port that server is monitored, industrial network break period;
Step 2, when there is industrial network message to enter industrial network detection device, described in the industrial network detection device inspection
Purpose IP address, source IP address and the source port of message whether respectively with rule client ip address, server ip address and
Server listening port is consistent, if be not consistent, this message and the rule are mismatched;If be consistent, the last of rule is updated
Renewal time, the final updating time of the rule are the time that the industrial network message enters industrial network detection device,
It is stored with the rule in the memory of industrial network detection device, if this rule has been transmitted across in industrial network
Disconnected alarm, then the industrial network detection device, which sends an industrial network and interrupts, restores alarm;
Step 3, industrial network detection device starts a thread or process, the timeout case of timing detected rule;If current
The final updating time that time subtracts rule is greater than the industrial network break period of the rule, the industrial network detection device
Send an industrial network abnormal interrupt alarm.
2. the detection method of industrial network abnormal interrupt according to claim 1, which is characterized in that the industrial network inspection
Measurement equipment is industrial fireproof wall or industrial audit network detection device.
3. the detection method of industrial network abnormal interrupt according to claim 1, which is characterized in that step 3 periodically detects
The time interval of regular timeout case is determined by experiment according to the performance of industrial network detection device.
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CN106444700A (en) * | 2016-09-09 | 2017-02-22 | 郑州宇通客车股份有限公司 | Automobile monitoring host and positioning module fault determination method |
CN108933707B (en) * | 2017-05-26 | 2021-03-05 | 西门子(中国)有限公司 | Safety monitoring system and method for industrial network |
CN107612760B (en) * | 2017-11-03 | 2021-08-24 | 睿石网云(北京)科技有限公司 | Method and system for monitoring interruption of business service |
CN114697202B (en) * | 2020-12-31 | 2023-09-29 | 华为技术有限公司 | Detection method and device |
CN116017489A (en) * | 2021-10-19 | 2023-04-25 | 华为技术有限公司 | Method and device for transmitting information |
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CN101237357A (en) * | 2008-02-04 | 2008-08-06 | 华中科技大学 | Online failure detection method for industrial wireless sensor network |
CN102195824A (en) * | 2010-03-05 | 2011-09-21 | ***通信集团公司 | Method, device and system for out-of-service alarm of data service system |
CN102438026A (en) * | 2012-01-12 | 2012-05-02 | 冶金自动化研究设计院 | Industrial control network security protection method and system |
CN103944915A (en) * | 2014-04-29 | 2014-07-23 | 浙江大学 | Threat detection and defense device, system and method for industrial control system |
CN104796283A (en) * | 2015-03-18 | 2015-07-22 | 飞天诚信科技股份有限公司 | Monitoring alarm method |
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US9116531B2 (en) * | 2013-02-27 | 2015-08-25 | General Electric Company | Methods and systems for current output mode configuration of universal input-output modules |
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CN101237357A (en) * | 2008-02-04 | 2008-08-06 | 华中科技大学 | Online failure detection method for industrial wireless sensor network |
CN102195824A (en) * | 2010-03-05 | 2011-09-21 | ***通信集团公司 | Method, device and system for out-of-service alarm of data service system |
CN102438026A (en) * | 2012-01-12 | 2012-05-02 | 冶金自动化研究设计院 | Industrial control network security protection method and system |
CN103944915A (en) * | 2014-04-29 | 2014-07-23 | 浙江大学 | Threat detection and defense device, system and method for industrial control system |
CN104796283A (en) * | 2015-03-18 | 2015-07-22 | 飞天诚信科技股份有限公司 | Monitoring alarm method |
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