CN102394950B - Method and system for IP address distribution of network security terminal under home gateway - Google Patents

Method and system for IP address distribution of network security terminal under home gateway Download PDF

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Publication number
CN102394950B
CN102394950B CN2011104369079A CN201110436907A CN102394950B CN 102394950 B CN102394950 B CN 102394950B CN 2011104369079 A CN2011104369079 A CN 2011104369079A CN 201110436907 A CN201110436907 A CN 201110436907A CN 102394950 B CN102394950 B CN 102394950B
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network security
security terminal
home gateway
dhcp
address
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CN102394950A (en
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张谋总
梁鸿生
蔡晓阳
许福成
王艺婷
唐力耒
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China Telecom Corp Ltd
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China Telecom Corp Ltd
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Abstract

The invention provides a method and a system for IP address distribution of a network security terminal under a home gateway. When a network security terminal is electrified or restarted, a home gateway is automatically searched and the home gateway distributes an available IP address for the network security terminal; the network security terminal selects a message sent by the home gateway from a plurality of DHCPOFFER messages, wherein a DHCP Option 60 enterprise code of the home gateway is the same as that of the network security terminal; the network security terminal broadcasts a DHCP REQUEST package; the home gateway queries an internal strategy table and gives a corresponded DHCP ACK response message; after the network security terminal receives the DHCP ACK message, automatic configuration information is obtained, wherein the configuration information includes the IP address. According to the invention, the network security terminal and the home gateway support DHCP OPTION 60; and crossing between a public network and a private network is realized by utilizing the DHCP OPTION 60.

Description

Method and system for home gateway lower network security terminal distributing IP address
Technical field
The present invention relates to a kind of is the method and system of home gateway lower network security terminal distributing IP address, and particularly a kind of DHCP of utilization OPTION 60 is embodied as the method and system of home gateway lower network security terminal distributing IP address.
Background technology
At present, increasing network security terminal is applied.Due to the security consideration of the finiteness from IP and equipment use, this network security terminal often needs to be in user private network.Therefore, how making the terminal equipment zero configuration automatically by the home gateway accessing Internet, realize two-way access, is a urgent problem.
Specifically, in video monitoring projects implementation process, for solving the problem of headend equipment penetrating through private network, need front end engineering construction personnel manually on family gateway equipment, to carry out the configuration of nat port static mappings at present.But, in popular video monitoring market, this data configuration mode will affect carrying out of business event and make troubles to later maintenance.
Summary of the invention
In view of more than, the present invention proposes a kind of for the method and system of home gateway lower network security terminal distributing IP address.
The present invention proposes a kind of for the method for home gateway lower network security terminal distributing IP address, comprises the following steps:
The network security terminal powers on or while restarting, the Automatic-searching home gateway, will be to Web broadcast DHCP DISCOVER package, and the information of enclosing DHCP DISCOVER and Option 60, wherein, DHCP Option 60 information comprise corporate code, Vender, Category and Model;
Home gateway sends DHCP OFFER response message after receiving the DHCP DISCOVER information of automatic network security terminal, comprising the IP available address of distributing;
The message that the network security terminal selects DHCPOption 60 corporate codes to send with own identical home gateway from a plurality of DHCP OFFER messages of receiving;
Network security terminal broadcast DHCP REQUEST package, wherein comprise selected home gateway information, and the Vender of network security terminal, Category and Model are included in DHCP Option 60 and send together;
After home gateway is received DHCP REQUEST package, will be according to the Policy Table of the MAC Address inquiry home gateway inside of the content of Vender, Category, Model and network security terminal, give corresponding DHCP ACK message, comprising DHCP Option 43 information that complete automatic configuration;
The network security terminal therefrom obtains provisioning information after receiving DHCP ACK message, and described configuration information comprises the IP address.
The present invention proposes a kind of for the system of home gateway lower network security terminal distributing IP address, comprising:
The network security terminal, power on or while restarting, the Automatic-searching home gateway, will be to Web broadcast DHCP DISCOVER package, and the information of enclosing DHCP DISCOVER and Option 60, wherein, DHCP Option 60 information comprise corporate code, Vender, Category and Model; The message of selecting DHCP Option 60 corporate codes to send with own identical home gateway from a plurality of DHCP OFFER messages of receiving; Broadcast DHCP REQUEST package, wherein comprise selected home gateway information, and the Vender of network security terminal, Category and Model are included in DHCP Option 60 and send together; After receiving DHCP ACK message, therefrom obtain provisioning information, described configuration information comprises the IP address;
Home gateway, after receiving the DHCP DISCOVER information of automatic network security terminal, send DHCP OFFER response message, comprising the IP available address of distributing; After receiving DHCP REQUEST package, will be according to the Policy Table of the MAC Address inquiry home gateway inside of the content of Vender, Category, Model and network security terminal, give corresponding DHCP ACK message, comprising DHCP Option 43 information that complete automatic configuration.
The present invention is in video monitoring projects implementation process, manually on family gateway equipment, carry out the configuration of nat port static mappings without front end engineering construction personnel, it is by coordinating with home gateway, introduce DHCP Option 60 parameter mechanism and can complete automatic configuration nat port static mappings on home gateway, realize that public and private net passes through, and then complete the automatic configuration to network security terminal equipment, and greatly saved manpower, facilitate the maintenance in later stage.Further, realize the interoperability of global eyes platform and home gateway lower network security terminal equipment.
The accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a part of the present invention, and schematic description and description of the present invention the present invention does not form inappropriate limitation of the present invention for explaining.In the accompanying drawings:
Fig. 1 illustrates the method that the present invention is home gateway lower network security terminal distributing IP address.
Fig. 2 illustrates the present invention after being network security terminal devices allocation IP address, the method flow that certain network security terminal equipment is controlled.
Fig. 3 illustrates the present invention after being network security terminal devices allocation IP address, the method flow of network security terminal equipment report and alarm.
It is the system architecture schematic diagram of home gateway lower network security terminal distributing IP address that Fig. 4 illustrates a kind of of the present invention's proposition.
Embodiment
The object of the present invention is to provide a kind of for the method and system of home gateway lower network security terminal distributing IP address, particularly a kind of DHCP of utilization OPTION 60 is embodied as the method and system of home gateway lower network security terminal distributing IP address, and then realizes the interoperability of global eyes platform and home gateway lower network security terminal equipment.
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and, with reference to accompanying drawing, the present invention is described in more detail.
Fig. 1 illustrates the method flow that the present invention is home gateway lower network security terminal distributing IP address, specifically describes as follows:
DHCP Client (IP Camera and alarming host, i.e. network security protection headend equipment) powers on or while restarting, Automatic-searching DHCP Server (home gateway).It will be to DHCP DISCOVER package of Web broadcast, because which network Client does not also know oneself to belong to, so the source address of its package can be 0.0.0.0, destination address is 255.255.255.255, and will enclose the information of DHCP DISCOVER and Option 60.Wherein DHCP Option 60 information spinners will comprise corporate code (Enterprise Code), Vender, Category, Model, Version, Protocol Type/Port Number (forPort Forwarding) information.
After DHCP Server (home gateway) receives the DHCPDISCOVER information from DHCP Client, send DHCP OFFER response message, this message comprises the IP available address of distribution, tcp/ip message etc.Home gateway is the IP address that DHCP Client distributes, and has realized utilizing DHCP OPTION 60 to realize that public and private net passes through.
DHCP Client may receive a plurality of DHCP OFFER messages, and final DHCPClient should be according to DHCP OFFER message, the message of preferentially selecting DHCP Server (home gateway) that DHCP Option 60 corporate codes are identical with oneself to send.
DHCP Client will broadcast a DHCP REQUEST package, wherein comprise selected Server information, and the information such as the Vender of DHCP Client, Category, Model are included in DHCP Option 60 and send together.
After DHCP Server (home gateway) receives DHCP REQUEST package, will be according to the Policy Table of the information inquiry DHCP Server inside such as MAC Address of the content of Vender, Category, Model and DHCP Client, give corresponding DHCP ACK message, comprising DHCP Option 43 information that complete automatic configuration.(Option 43 fields not yet define at present, and front end is temporarily without this field information is dealt with)
DHCP Client therefrom obtains provisioning information after receiving DHCP ACK message, comprises the operable IP of DHCP Client address.From this point, say, DHCP Server completes the automatic configuration of equipment, and the automatic discovery of equipment also completes.
DHCP Client sends DHCP RELEASE message initiatively to when disconnecting DHCP Server (home gateway), and DHCP Server (home gateway) also distributes to release the resource of DHCP Client.
A lot of extendible Option message field (MFLD)s have been stipulated in the DHCP agreement, for various service applications.Wherein Option 60 fields are called " Vendor class identifier ", for distinguishing the classified terminal type.
Wherein Field is defined as follows:
Figure BDA0000123889230000061
The corporate code of China Telecom (Enterprise Code): 0x0000.
For video monitoring service, Option 60 field parameters are done following adjustment:
By home gateway, be reserved public network mapped port: the Port 8000~8032,9000~9032 of global eyes business;
Annotate: DHCP distributing IP address pool is: 192.168.1.2~192.168.1.33
Increase the English code definition of manufacturer of relevant front end in the 1st field in Option 60;
IP Camera manufacturer is for example:
Haikang: Hikvision
D-Link:DLink
VivoTech:VIVOTEK
Li Tai: LeadTech
Beijing Yi Jia: ELIVE
Alarming host manufacturer
Beijing Yi Jia: ELIVE
Shanghai Hua Meng: ChineseLeague
The Putian letter becomes: fjxctech
In Option 60, the 2nd field increases the definition of security protection host device type;
IP Camera device type is: Camera
The alarming host device type is: EHP-AH
In Option 60, the 3rd field is filled in its unit type voluntarily by front end manufacturer;
In Option 60, the 5th field is filled in port numbers and the agreement that its business is used;
IP?Camera:
Port?8000(0x00001F40),UDP
Port?9000(0x00012328),TCP;
Annotate: when same port need be supported TCP, two kinds of agreements of UDP simultaneously, field that field type is " 5 " needs 2: " Protocol Type (2bytes) " of be " 1 " (TCP), " Port Number (2bytes) " is " 9000 "; Another " ProtocolType (2bytes) " be " 0 " (UDP), " Port Number (2bytes) " is " 8000 ".This field (4bytes) low byte is preserved Protocol Type (2bytes), and high byte is preserved Port Number (2bytes).
AH (alarming host):
Port?9000(0x00012328),TCP;
Home gateway is used following mapping principle automatically to add the public and private net static mappings of nat port:
Public network mapped port=(Last Internal IP Address Segment) & 31+ (Internal IP Port), wherein , & Presentation logic and computing;
The minimum field of the private network IP address that the public network mapped port is obtained by network security protection headend equipment; & The port numbers that 31 result is added network security protection headend equipment determines.
Above-mentioned parameter field definition: the English code definition of manufacturer that increases relevant front end in Option 60 in the 1st field; In Option 60, the 2nd field increases the definition of security protection host device type; In Option 60, the 3rd field is filled in its unit type voluntarily by front end manufacturer; In Option 60, the 5th field is filled in port numbers and the agreement that its business is used.
By above field reporting equipment manufacturer, device type, unit type, the global eyes platform just can be known the attribute of knowing network security terminal equipment, without artificial participation, the global eyes platform can carry out respective handling by these information, as facility registration, performance queries, alarm statistics etc.
The global eyes platform can be controlled network security terminal equipment by home gateway by home gateway accesses network security terminal equipment, global eyes platform, network security terminal equipment can be accessed the global eyes platform by home gateway.Below related procedure will be described respectively.
Fig. 2 illustrates the present invention after being network security terminal devices allocation IP address, the method flow that certain network security terminal equipment is controlled:
When the user is controlled certain network security terminal equipment (as The Cloud Terrace is controlled), CLIENT first inquires about relevant CSG route to EMS;
EMS returns to the route corresponding information;
CLIENT sends control command message to CSG;
CSG will inquire about according to the device id of front end the IP address of current device;
CSG forward end video server forward command message.
Fig. 3 illustrates the present invention after being network security terminal devices allocation IP address, the method flow of network security terminal equipment report and alarm:
The user subscribes to the alarm needed to CMS;
Network security terminal equipment by the front end alarm report to CSG;
CSG is transmitted to AS by alarm;
AS sends to corresponding user to alarm by the alarm warehouse-in and according to user's alarm situation of subscribing to.
It is the system of home gateway lower network security terminal distributing IP address that Fig. 4 illustrates a kind of of the present invention's proposition, comprising:
The network security terminal, power on or while restarting, the Automatic-searching home gateway, will be to Web broadcast DHCP DISCOVER package, and the information of enclosing DHCP DISCOVER and Option 60, wherein, DHCP Option 60 information comprise corporate code, Vender, Category and Model; The message of selecting DHCP Option 60 corporate codes to send with own identical home gateway from a plurality of DHCP OFFER messages of receiving; Broadcast DHCP REQUEST package, wherein comprise selected home gateway information, and the Vender of network security terminal, Category and Model are included in DHCP Option 60 and send together; After receiving DHCP ACK message, therefrom obtain provisioning information;
Home gateway, after receiving the DHCP DISCOVER information of automatic network security terminal, send DHCP OFFER response message, comprising the IP available address of distributing; After receiving DHCP REQUEST package, will be according to the Policy Table of the MAC Address inquiry home gateway inside of the content of Vender, Category, Model and network security terminal, give corresponding DHCP ACK message, comprising DHCP Option 43 information that complete automatic configuration.
The present invention is in video monitoring projects implementation process, manually on family gateway equipment, carry out the configuration of nat port static mappings without front end engineering construction personnel, it is by coordinating with home gateway, introduce DHCP Option 60 parameter mechanism and can complete automatic configuration nat port static mappings on home gateway, realize that public and private net passes through, and then complete the automatic configuration to network security terminal equipment, and greatly saved manpower, facilitate the maintenance in later stage.Realize the interoperability of global eyes platform and home gateway lower network security terminal equipment.
As the conclusion to describing in detail, should notice that those skilled in the art will be apparent from can make many variations and modification to preferred embodiment, and not break away from fact principle of the present invention.Within this variation and modification are included in the described scope of the present invention of appended claims.

Claims (8)

1. the method that is home gateway lower network security terminal distributing IP address comprises the following steps:
The network security terminal powers on or while restarting, the Automatic-searching home gateway, to Web broadcast DHCP DISCOVER package, and the information of enclosing DHCP DISCOVER and Option60, wherein, DHCP Option60 information comprises corporate code, Vender, Category and Model;
Home gateway sends DHCP OFFER response message after receiving the DHCP DISCOVER information of automatic network security terminal, comprising the IP available address of distributing;
The message that the network security terminal selects DHCP Option60 corporate code to send with own identical home gateway from a plurality of DHCP OFFER messages of receiving;
Network security terminal broadcast DHCP REQUEST package, wherein comprise selected home gateway information, and the Vender of network security terminal, Category and Model are included in DHCP Option60 and send together;
After home gateway is received DHCP REQUEST package, will be according to the Policy Table of the MAC Address inquiry home gateway inside of the content of Vender, Category, Model and network security terminal, give corresponding DHCP ACK message, comprising the DHCP Option43 information that completes automatic configuration;
The network security terminal therefrom obtains provisioning information after receiving DHCP ACK message, and described configuration information comprises the IP address;
Home gateway is the reserved public network mapped port of global eyes business, the minimum field of the private network IP address that described public network mapped port is obtained by network security terminal equipment; 31 result is added the port numbers decision of network security terminal equipment, wherein , & Presentation logic and computing.
2. be according to claim 1 the method for home gateway lower network security terminal distributing IP address, further comprising the steps of:
The network security terminal sends DHCP RELEASE message to home gateway when disconnecting, and home gateway is distributed to release the resource of network security terminal.
3. according to claim 1 or 2 is the method for home gateway lower network security terminal distributing IP address, further comprising the steps of:
For video monitoring service, the Option60 field parameter is: the English code definition of manufacturer that increases the network of relation security terminal in Option60 in the 1st field, in Option60, the 2nd field increases the definition of security protection host device type, in Option60, the 3rd field is filled in its unit type voluntarily by network security terminal manufacturer, in Option60, the 5th field is filled in port numbers and the agreement that its business is used, by above field reporting equipment manufacturer, device type and unit type, the global eyes platform obtains the attribute of network security terminal equipment, and carry out respective handling by these information.
4. according to claim 1 or 2 is the method for home gateway lower network security terminal distributing IP address, further comprising the steps of:
In Option60, the 5th field is filled in the port that its business used and is supported TCP, two kinds of agreements of UDP simultaneously, and field type is 2 fields, and each field is preserved protocol type and port numbers.
5. according to claim 1 or 2 is the method for home gateway lower network security terminal distributing IP address, after being network security terminal devices allocation IP address, further comprising the steps of:
The global eyes platform passes through home gateway accesses network security terminal equipment, the global eyes platform controls network security terminal equipment by home gateway and network security terminal equipment is accessed the global eyes platform by home gateway.
6. the system that is home gateway lower network security terminal distributing IP address comprises:
The network security terminal, power on or while restarting, the Automatic-searching home gateway, to Web broadcast DHCP DISCOVER package, and the information of enclosing DHCP DISCOVER and Option60, wherein, DHCP Option60 information comprises corporate code, Vender, Category and Model; The message of selecting DHCP Option60 corporate code to send with own identical home gateway from a plurality of DHCP OFFER messages of receiving; Broadcast DHCP REQUEST package, wherein comprise selected home gateway information, and the Vender of network security terminal, Category and Model are included in DHCP Option60 and send together; After receiving DHCP ACK message, therefrom obtain provisioning information, described configuration information comprises the IP address;
Home gateway, after receiving the DHCP DISCOVER information of automatic network security terminal, send DHCP OFFER response message, comprising the IP available address of distributing; After receiving DHCP REQUEST package, will be according to the Policy Table of the MAC Address inquiry home gateway inside of the content of Vender, Category, Model and network security terminal, give corresponding DHCP ACK message, comprising the DHCP Option43 information that completes automatic configuration; Described home gateway is the reserved public network mapped port of global eyes business, the minimum field of the private network IP address that described public network mapped port is obtained by network security terminal equipment; 31 result is added the port numbers decision of network security terminal equipment, wherein , & Presentation logic and computing.
7. be the system of home gateway lower network security terminal distributing IP address according to claim 6, described home gateway is by equipment vendors, device type and unit type report the global eyes platform, the global eyes platform obtains the attribute of network security terminal equipment, and carry out respective handling by these information, wherein, the Option60 field parameter is: the English code definition of manufacturer that increases the network of relation security terminal in Option60 in the 1st field, in Option60, the 2nd field increases the definition of security protection host device type, in Option60, the 3rd field is filled in its unit type voluntarily by network security terminal manufacturer, in Option60, the 5th field is filled in port numbers and the agreement that its business is used.
8. according to claim 6 or 7 is the system of home gateway lower network security terminal distributing IP address, and the global eyes platform passes through home gateway accesses network security terminal equipment, the global eyes platform controls network security terminal equipment by home gateway and network security terminal equipment is accessed the global eyes platform by home gateway.
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