CN106549972A - A kind of firewall system of embedded intrusion detection feature - Google Patents
A kind of firewall system of embedded intrusion detection feature Download PDFInfo
- Publication number
- CN106549972A CN106549972A CN201611051233.XA CN201611051233A CN106549972A CN 106549972 A CN106549972 A CN 106549972A CN 201611051233 A CN201611051233 A CN 201611051233A CN 106549972 A CN106549972 A CN 106549972A
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- unit
- module
- control chip
- main control
- intrusion detection
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
- H04L63/0209—Architectural arrangements, e.g. perimeter networks or demilitarized zones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
- H04L63/0227—Filtering policies
- H04L63/0236—Filtering by address, protocol, port number or service, e.g. IP-address or URL
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/14—Network architectures or network communication protocols for network security for detecting or protecting against malicious traffic
- H04L63/1408—Network architectures or network communication protocols for network security for detecting or protecting against malicious traffic by monitoring network traffic
Abstract
The invention discloses a kind of firewall system of embedded intrusion detection feature; including hardware firewall and software protecting module; hardware firewall is used to be connected to host computer and access protected network; including protection shell and kernel control module; kernel control module is fixedly mounted on the inside of protection shell; kernel control module includes main control chip and peripheral circuit; the data terminal of main control chip is connected with data storage cell; main control chip is also associated with human-computer interaction module, and power pins are connected with light current power supply unit;Software protecting module is built in main control chip, including processing data packets unit and intrusion detecting unit, the input of processing data packets unit is connected with network insertion unit, outfan is connected to intrusion detecting unit, intrusion detecting unit is also associated with Realtime Alerts unit, the present invention is combined by hardware and software, is implanted into intrusion detection feature, improves security protection performance on common firewall.
Description
Technical field
The present invention relates to firewall technology field, specially a kind of firewall system of embedded intrusion detection feature.
Background technology
People while the new huge opportunity for having benefited from that information revolution brought also have to ask in the face of information security
The baptism of topic.Along with the propulsion to network technology, the fight of network-combination yarn is also more and more fiery.Network security has caused
Various countries, all departments, the great attention of all trades and professions, introduce the public knowledge that safety precaution mechanism has become people in a network.It is anti-
Model network attack, the most frequently used countermeasure are to build fire wall.Fire wall is a kind of ALG, according to the rule of setting to entering
The packet for entering network is filtered, while also corresponding security service can be provided for various network applications.Using fire wall skill
Art, through careful configuration, network protection mechanism that generally can be with high safety between intranet and extranet, reduce risk.But only make
It is far from being enough to be guaranteed network security with fire wall, because invader can find fire wall by every means and may open wide behind
Passage.On the other hand, fire wall is preventing the aspects such as internal attack from also producing little effect, for enterprises are felt discontented and skill
For the superb employee of art, fire wall performs practically no function.The restriction of performance is additionally, since, fire wall generally can not be provided effectively
Intrusion detection capability.
The content of the invention
For problem above, the invention provides a kind of firewall system of embedded intrusion detection feature, by hardware and
Software combines, and is implanted into intrusion detection feature, improves security protection performance on common firewall, can be with effectively solving background
Problem in technology.
For achieving the above object, the present invention provides following technical scheme:A kind of fire wall system of embedded intrusion detection feature
System, including hardware firewall and software protecting module, the hardware firewall is used to being connected to host computer and accesses protected network,
Including protection shell and kernel control module, the kernel control module is fixedly mounted on the inside of protection shell, the core
Control module includes main control chip and peripheral circuit, and the data terminal of the main control chip is connected with data storage cell, master control core
Piece is also associated with human-computer interaction module, and power pins are connected with light current power supply unit;The software protecting module is built in master control
In chip, including processing data packets unit and intrusion detecting unit, the input of the processing data packets unit is connected with network
Access unit, outfan are connected to intrusion detecting unit, and the intrusion detecting unit is also associated with Realtime Alerts unit.
As a kind of preferred technical scheme of the present invention, Cyclone Series FPGA of the main control chip using Altera
Embedded software core processor NIOS II is integrated with controller, and the FPGA controller, the peripheral circuit includes crystal oscillating circuit
And reset circuit.
Used as a kind of preferred technical scheme of the present invention, the data storage cell includes FLASH memory and DDR storages
Device, the FLASH memory are instructed for storage program, and the DDR memory is used to realize data storage.
Used as a kind of preferred technical scheme of the present invention, the human-computer interaction module includes liquid crystal display and enter key
Disk, the input of the liquid crystal display are connected with lcd driver, and the lcd driver is connected to the data of main control chip and hands over
Mutually hold.
Used as a kind of preferred technical scheme of the present invention, the light current power supply unit includes charged lithium cells and voltage transformation
Device, the input of the voltage changer are connected with USB charging inlets, and outfan is connected to charged lithium cells, the charging lithium
Battery is connected to the VCC pin of main control chip.
As a kind of preferred technical scheme of the present invention, a kind of embedded intrusion detection feature according to claim 1
Firewall system, it is characterised in that:The processing data packets unit includes packet interception module and packet filtering module,
The packet interception module is used to carry out data capture operation, and is built-in with decoder, and the packet filtering module is used for
Packet Filtering operation is carried out, filtering rule distributor and filter is built-in with.
Used as a kind of preferred technical scheme of the present invention, the intrusion detecting unit includes IP address analysis module, scanning
Detector and intrusion base, the IP address analysis module for being analyzed and forbid false IP, institute to the address of visitor
Scan detector is stated for detection being scanned to decoded insulation.
Used as a kind of preferred technical scheme of the present invention, the network insertion unit includes RJ45 interfaces and Network adaptation
Device, the network adapter are linked into existing network, and the COM1 of network adapter and main control chip by RJ45 interfaces
Between by RS232 change card interface connection.
Used as a kind of preferred technical scheme of the present invention, the Realtime Alerts unit includes driving amplifier, the driving
The outfan of amplifier is connected with warning electric bell and warning lamp.
Compared with prior art, the invention has the beneficial effects as follows:The firewall system of the embedded intrusion detection feature, passes through
Software protecting module is set, software is combined with hardware module, increase intrusion detection feature;By arranging processing data packets list
Unit and intrusion detecting unit, carry out the preliminary filter operation of packet using packet interception module and packet filtering module, lead to
Setting intrusion detecting unit is crossed, and further intrusion detection is done using IP address analysis module and scan detector and is processed, so as to
Effectively improve the safety precaution performance of device;By arranging Realtime Alerts unit, physics is carried out using warning electric bell and warning lamp
Report to the police, remind staff to carry out artificial treatment, in time efficiently;The present invention is combined by hardware and software, is commonly being prevented fires
Intrusion detection feature is implanted on wall, security protection performance is effectively increased.
Description of the drawings
Fig. 1 is modular structure schematic diagram of the present invention;
Fig. 2 is surface structure schematic diagram of the present invention.
In figure:1- hardware firewalls;2- software protecting modules;3- protects shell;4- kernel control modules;5- master control cores
Piece;6- peripheral circuits;7- human-computer interaction modules;8- light current power supply units;9- processing data packets units;10- intrusion detecting units;
11- network insertion units;12- Realtime Alerts units;13- data storage cells;14- crystal oscillating circuits;15- reset circuits;16-
FLASH memory;17-DDR memorizeies;18- liquid crystal displays;19- input keyboards;20-LCD drivers;21- chargings lithium electricity
Pond;22- voltage changers;23-USB charging inlets;24- packet interception modules;25- packet filtering modules;26- is decoded
Device;27- filtering rule distributors;28- filters;29-IP adress analysis modules;30- scan detectors;31- intrusion bases;
32- driving amplifiers;33- warning electric bells;34- warning lamps;35-RJ45 interfaces;36- network adapter.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Embodiment:
Fig. 1 and Fig. 2 is referred to, the present invention provides a kind of technical scheme:A kind of firewall system of embedded intrusion detection feature, bag
Hardware firewall 1 and software protecting module 2 are included, the hardware firewall 1 is used to be connected to host computer and access protected network, wraps
Protection shell 3 and kernel control module 4 are included, the kernel control module 4 is fixedly mounted on the inside of protection shell 3, the core
Heart control module 4 includes main control chip 5 and peripheral circuit 6, and the data terminal of the main control chip 5 is connected with data storage cell
13, main control chip 5 is also associated with human-computer interaction module 7, and power pins are connected with light current power supply unit 8;The software protecting mould
Block 2 is built in main control chip 5, including processing data packets unit 9 and intrusion detecting unit 10, the processing data packets unit 9
Input be connected with network insertion unit 11, outfan is connected to intrusion detecting unit 10, and the intrusion detecting unit 10 is also
It is connected with Realtime Alerts unit 12;
Cyclone Series FPGA controller of the main control chip 5 using Altera, and be integrated with the FPGA controller embedded
Formula soft-core processor NIOS II, the peripheral circuit 6 include crystal oscillating circuit 14 and reset circuit 15;The data storage cell 13
Including FLASH memory 16 and DDR memory 17, the FLASH memory 16 is instructed for storage program, the DDR storages
Device 17 is used to realize data storage;The human-computer interaction module 7 includes liquid crystal display 18 and input keyboard 19, the liquid crystal
Show that the input of device 18 is connected with lcd driver 20, the lcd driver 20 is connected to the data interaction end of main control chip 5;
The light current power supply unit 8 includes charged lithium cells 21 and voltage changer 22, the input of the voltage changer 22
USB charging inlets 23 are connected with, outfan is connected to charged lithium cells 21, and the charged lithium cells 21 are connected to main control chip 5
VCC pin;The processing data packets unit 9 includes packet interception module 24 and packet filtering module 25, the data
Bag interception module 24 is used to carry out data capture operation, and is built-in with decoder 26, the packet filtering module 25 be used for into
Row Packet Filtering is operated, and is built-in with filtering rule distributor 27 and filter 28;
The intrusion detecting unit 10 includes IP address analysis module 29, scan detector 30 and intrusion base 31, the IP
, for false IP is analyzed and forbidden to the address of visitor, the scan detector 30 is for decoding for adress analysis module 29
Insulation afterwards is scanned detection;The network insertion unit 11 includes RJ45 interfaces 35 and network adapter 36, the network
Adapter 36 is linked between existing network, and the COM1 of network adapter 36 and main control chip 5 by RJ45 interfaces 35
Connected by RS232 translation interfaces;The Realtime Alerts unit 12 includes driving amplifier 32, the driving amplifier 32 it is defeated
Go out end and be connected with warning electric bell 33 and warning lamp 34.
The operation principle of the present invention:Using physical arrangement, the hardware firewall 1 realizes that electrical connection and total system are taken
Operation is built, the software protecting module 2 is carried out obtaining, detected and IPS operation to packet by software;
Control core of the kernel control module 4 for whole device, Cyclone system of the main control chip 5 using Altera
Row FPGA controller, FPGA are field programmable gate array, and it is entered on the basis of the programming devices such as PAL, GAL, CPLD
The product of one step development.It is as special IC(ASIC)A kind of semi-custom circuit in field and occur, both solved
Determine the deficiency of custom circuit, overcome the limited shortcoming of original programming device gate circuit number again;
In IP packet header, the protocol information (TCP, UDP, TCMP, TGMP) of packet is contained, it can be determined that what packet belongs to
Kind of protocol type, in IP packet header, further comprises the source IP address and purpose IP address of packet, it can be determined that packet from
Where, and the port numbers of packet access in TCP or UDP packet header, are contained, can be determined that packet is category by port numbers
In which kind of upper layer application protocol, the destination slogan of such as Telnet is 23, and http port number is often 80.Data link layer,
In Internet, transport layer, fire wall arranges the filtering rule of protocol type, if be provided with to forbid receiving certain protocol type
Packet, then by data packet discarding, arrange the filtering rule of IP address in Internet, if be provided with to forbid receiving certain IP source
The packet of address, then by data packet discarding;
(1)The light current power supply unit 8 is powered for whole device, and the USB charging inlets 23 can be connected by USB data line
To portable power source, power supply adaptor or the USB delivery outlets of computer are directly connected to, external power source is introduced to charged lithium cells 21
Charge, charged lithium cells 21 will carry out electrical power storage, when needed output voltage, there is provided to main control chip 5, whole so as to make
Device is started working;
(2)The peripheral circuit 6 is that 5 normal work of main control chip improves guarantee, and the crystal oscillating circuit 14 has started after powered up
Shake, there is provided standard clock cycle, so as to start working according to the fixed machine cycle, the reset circuit 15 exists main control chip 5
The operation that resets can be realized after system electrification, by all of state initialization in main control chip 5;
(3)The human-computer interaction module 7 is used to realize man-machine interactive operation, is convenient for parameter setting and parameter shows, described
Input keyboard 19 can carry out the parameter setting and condition selecting of correlation, so as to carry out fire wall basic parameter configuration, the LCD
Driver 20 is entered after row format conversion, then by liquid crystal display 18 for the data level that main control chip 5 is wanted output display
Show, be easy to user directly to be observed;
(4)The processing data packets unit 9 is used to carry out packet acquisition operation, carries out network company by network insertion unit 11
Connect, the network insertion unit 11 is accessed by RJ45 interfaces 35 to be needed in the middle of the physical network for being protected, and the network is fitted
Orchestration 36 can carry out network parameter configuration, and carry out data transmission, and the network data transmission that will be accessed is to processing data packets
Unit 9;
(5)The processing data packets unit 9 commences work without delay after packet is received, the packet interception module 24 from
Packet crawl is carried out in transaction data stream, and parsing operation, Packet Filtering mould are carried out by decoder 26 to packet
Block 25 carries out filtration parameter configuration by filtering rule distributor 27 then to the packet after parsing, then through filter 28 according to
Keyword is screened, and every packet for not meeting keyword requirement does not allow to pass through;
(6)The intrusion detecting unit 10 is further analyzed to packet, and the IP address analysis module 29 is in packet
Packet header in IP address be analyzed, determine whether address dummy, if address dummy does not then allow to pass through, be not to enter
Row next step judges;The scan detector 30 is persistently scanned pop-up to packet, constantly searches intrusion base 31, sentences
It is disconnected invasion whether occur, once, find invasion, then report to main control chip 5 immediately, produce alarm signal, trigger Realtime Alerts
Unit 12;
(7)The Realtime Alerts unit 12 is started working under the triggering of main control chip 5, the driving amplifier 32 by export
The signal of telecommunication carries out power amplification, then triggers warning electric bell 33 and sends audio alarm, and the warning lamp 34 is lit and starts to dodge
It is bright, so as to remind staff to note.
The firewall system of the embedded intrusion detection feature, by arranging software protecting module 2, by software and hardware module
Combine, increase intrusion detection feature;By arranging processing data packets unit 9 and intrusion detecting unit 10, cut using packet
Delivery block 24 and packet filtering module 25 carry out the preliminary filter operation of packet, by arranging intrusion detecting unit 10, utilize
IP address analysis module 29 and scan detector 30 do further intrusion detection and process, so as to the safety for effectively improving device is prevented
Plasticity energy;By arranging Realtime Alerts unit 12, physical alert is carried out using warning electric bell 33 and warning lamp 34, remind work people
Member carries out artificial treatment, in time efficiently;The present invention is combined by hardware and software, and intrusion detection is implanted on common firewall
Function, effectively increases security protection performance.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (9)
1. a kind of firewall system of embedded intrusion detection feature, including hardware firewall(1)With software protecting module(2), institute
State hardware firewall(1)For being connected to host computer and accessing protected network, including protection shell(3)And kernel control module
(4), the kernel control module(4)It is fixedly mounted on protection shell(3)Inside, it is characterised in that:The core controls mould
Block(4)Including main control chip(5)And peripheral circuit(6), the main control chip(5)Data terminal be connected with data storage cell
(13), main control chip(5)It is also associated with human-computer interaction module(7), power pins are connected with light current power supply unit(8);It is described soft
Part protection module(2)It is built in main control chip(5)In, including processing data packets unit(9)And intrusion detecting unit(10), it is described
Processing data packets unit(9)Input be connected with network insertion unit(11), outfan is connected to intrusion detecting unit(10),
The intrusion detecting unit(10)It is also associated with Realtime Alerts unit(12).
2. the firewall system of a kind of embedded intrusion detection feature according to claim 1, it is characterised in that:The master control
Chip(5)Using the Cyclone Series FPGA controllers of Altera, and in the FPGA controller, it is integrated with Embedded Soft Core process
Device NIOS II, the peripheral circuit(6)Including crystal oscillating circuit(14)And reset circuit(15).
3. the firewall system of a kind of embedded intrusion detection feature according to claim 1, it is characterised in that:The data
Memory element(13)Including FLASH memory(16)And DDR memory(17), the FLASH memory(16)For storing journey
Sequence is instructed, the DDR memory(17)For realizing data storage.
4. the firewall system of a kind of embedded intrusion detection feature according to claim 1, it is characterised in that:It is described man-machine
Interactive module(7)Including liquid crystal display(18)And input keyboard(19), the liquid crystal display(18)Input be connected with
Lcd driver(20), the lcd driver(20)It is connected to main control chip(5)Data interaction end.
5. the firewall system of a kind of embedded intrusion detection feature according to claim 1, it is characterised in that:The light current
Power supply unit(8)Including charged lithium cells(21)And voltage changer(22), the voltage changer(22)Input connection
There are USB charging inlets(23), outfan is connected to charged lithium cells(21), the charged lithium cells(21)It is connected to main control chip
(5)VCC pin.
6. the firewall system of a kind of embedded intrusion detection feature according to claim 1, it is characterised in that:The data
Bag processing unit(9)Including packet interception module(24)And packet filtering module(25), the packet interception module
(24)For carrying out data capture operation, and it is built-in with decoder(26), the packet filtering module(25)For entering line number
Operate according to packet filtering, be built-in with filtering rule distributor(27)And filter(28).
7. the firewall system of a kind of embedded intrusion detection feature according to claim 1, it is characterised in that:The invasion
Detector unit(10)Including IP address analysis module(29), scan detector(30)And intrusion base(31), the IP address
Analysis module(29)For false IP, the scan detector are analyzed and forbidden to the address of visitor(30)For to decoding
Insulation afterwards is scanned detection.
8. the firewall system of a kind of embedded intrusion detection feature according to claim 1, it is characterised in that:The network
Access unit(11)Including RJ45 interfaces(35)And network adapter(36), the network adapter(36)By RJ45 interfaces
(35)It is linked into existing network, and network adapter(36)With main control chip(5)COM1 between by RS232 conversion connect
Mouth connection.
9. the firewall system of a kind of embedded intrusion detection feature according to claim 1, it is characterised in that:It is described real-time
Alarm unit(12)Including driving amplifier(32), the driving amplifier(32)Outfan be connected with warning electric bell(33)With
Warning lamp(34).
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CN201611051233.XA CN106549972A (en) | 2016-11-25 | 2016-11-25 | A kind of firewall system of embedded intrusion detection feature |
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CN201611051233.XA CN106549972A (en) | 2016-11-25 | 2016-11-25 | A kind of firewall system of embedded intrusion detection feature |
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CN107104989A (en) * | 2017-07-12 | 2017-08-29 | 安徽博森互联网科技有限公司 | A kind of fire wall intruding detection system |
CN107181746A (en) * | 2017-05-18 | 2017-09-19 | 合肥海亚信息科技有限公司 | A kind of Intranet information protection device based on hardware mine dam |
CN107360182A (en) * | 2017-08-04 | 2017-11-17 | 南京翼辉信息技术有限公司 | One kind is used for Embedded Active Networks system of defense and its defence method |
CN111163047A (en) * | 2019-11-18 | 2020-05-15 | 福建东正信息科技有限公司 | Network security intrusion detection system |
CN113507433A (en) * | 2021-05-27 | 2021-10-15 | 新华三信息安全技术有限公司 | Data detection method and firewall equipment |
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CN107181746A (en) * | 2017-05-18 | 2017-09-19 | 合肥海亚信息科技有限公司 | A kind of Intranet information protection device based on hardware mine dam |
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