CN105553853A - Method, device and system for management of IPC through NVR - Google Patents
Method, device and system for management of IPC through NVR Download PDFInfo
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- CN105553853A CN105553853A CN201510867776.8A CN201510867776A CN105553853A CN 105553853 A CN105553853 A CN 105553853A CN 201510867776 A CN201510867776 A CN 201510867776A CN 105553853 A CN105553853 A CN 105553853A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/02—Topology update or discovery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
- H04L45/745—Address table lookup; Address filtering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/80—Actions related to the user profile or the type of traffic
- H04L47/806—Broadcast or multicast traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1073—Registration or de-registration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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Abstract
The present invention discloses a method, device and system for management of an IPC through a NVR. An egress router is arranged between the NVR and the IPC and is able to use a NAT; the NVR is located at an intranet, and the IPC is located at an extranet; the NVR is configured to send itself IP address, itself ID and received register port number to the egress router through multicast messages; and the egress router is configured to send the ID and received register port number of the NVR to the IPC through the multicast messages so as to allow the IPC to initiate the register for the port number and the ID, and forward the register messages to the NVR so as to allow the IPC to smoothly access the NVR. The device provided by the invention comprises a forward item establishment module, a multicast module, a first forwarding module and a second forwarding module. The configuration is simple, the operation is convenient, and the method, device and system for management of an IPC through a NVR are helpful for the installation of an engineering field and the later-stage maintenance.
Description
Technical field
The invention belongs to technical field of video monitoring, particularly relate to the methods, devices and systems of a kind of NVR managing I PC.
Background technology
Video monitoring is the important component part of safety and protection system, and video monitoring is directly perceived with it, accurately, timely and the information content is abundant and be widely used in many occasions.In recent years, along with the develop rapidly of computer, network and image procossing, transmission technology, the universalness trend of video monitoring is more and more obvious, and more and more trends towards adopting IP Video Supervision Technique to substitute traditional analog video monitoring technique.
Along with IP monitoring technique, the popularizing of the Internet, linking Internet is more and more convenient, and branch of trans-regional department, business consortium distribution on global need remote internet video monitoring more and more.And often in actual use, as shown in Figure 1, network hard disk video recorder NVR is in Intranet, and web camera IPC is at outer net.The change of the complicated and IP of the NAT type networking due to two ends access, port, the NVR in NAT cannot manage the IPC video camera outside NAT, is difficult to the access carrying out video traffic.
Prior art needs the mapping that will configure all of the port at NVR and each IPC on the router, and configuration is complicated, requires higher for administrative staff.For common consumer, be difficult to grasp collocation method, cause the difficult in maintenance of later stage is installed.
Therefore how the NVR of flexible convenient realization in NAT manages the IPC outside NAT, is the problem needing solution badly.
Summary of the invention
The object of this invention is to provide the methods, devices and systems of a kind of NVR managing I PC, the problem of configuration management complexity during to solve IPC that NVR in prior art NAT manages outside NAT, flexibly convenient, realize NVR in NAT to the management of the outer IPC of NAT safely.
To achieve these goals, technical solution of the present invention is as follows:
A method of NVR managing I PC, is provided with egress router between described NVR and IPC, and described egress router enables NAT, and described NVR is positioned at Intranet, and described IPC is positioned at outer net, and described method is applied to egress router, and described method comprises:
Receive NVR with the IP address carrying this NVR of the multicast address of setting transmission, identity ID and the first multicast message receiving registered port numbers, resolve this first multicast message and set up forwarding-table item;
With described multicast address to IPC send carry egress router outer net IP address, the second multicast message for the identity ID of the port numbers and NVR that receive IPC message, so that the IPC being configured with described multicast address receives this second multicast message, and send logon message according to this second multicast message;
The identity ID that reception IPC carries IPC and the logon message of the identity ID of the NVR that will register, forward this logon message to corresponding NVR according to the forwarding-table item set up;
Receive the response message be transmitted to IPC of succeeding in registration that NVR returns.
Wherein, described NVR and IPC is equipped with identical multicast address according to mutual administrative relationships are prewired.
Described IPC when sending logon message, to egress router outer net IP address, send logon message for the port numbers receiving IPC message, the identity ID that described logon message carries IPC and the identity ID of NVR that will register.
The invention allows for the device of a kind of NVR managing I PC, be provided with egress router between described NVR and IPC, described egress router enables NAT, described NVR is positioned at Intranet, described IPC is positioned at outer net, and described application of installation is in egress router, and described device comprises:
Forwarding-table item sets up module, for receiving NVR with the IP address carrying this NVR of the multicast address of setting transmission, identity ID and the first multicast message receiving registered port numbers, resolving this first multicast message and setting up forwarding-table item;
Multicast module, for with described multicast address to IPC send carry egress router outer net IP address, the second multicast message for the identity ID of the port numbers and NVR that receive IPC message, so that the IPC being configured with described multicast address receives this second multicast message, and send logon message according to this second multicast message;
First forwarding module, for receiving the logon message of the identity ID of the identity ID that IPC carries IPC and the NVR that will register, forwards the NVR of this logon message to correspondence according to the forwarding-table item set up;
Second forwarding module, for the response message be transmitted to IPC of succeeding in registration receiving that NVR returns.
The invention allows for a kind of video monitoring system, described system comprises the NVR being positioned at Intranet, the IPC being positioned at outer net, and is arranged on the egress router between described NVR and IPC, and described egress router enables NAT, wherein:
Described NVR, for sending the first multicast message carrying the IP address of this NVR, identity ID and receive registered port numbers with the multicast address of setting, and receive the logon message from IPC of egress router forwarding, obtain the identity ID of IPC corresponding in this logon message, identify this IPC to succeed in registration, and send the response message that succeeds in registration;
Described egress router, for receiving the first multicast message that Intranet NVR sends, resolve this first multicast message and set up forwarding-table item, and with described multicast address to IPC send carry egress router outer net IP address, the second multicast message for the identity ID of the port numbers and NVR that receive IPC message, and receive the logon message of IPC transmission, this logon message is forwarded to corresponding NVR according to the forwarding-table item set up, and the response message be transmitted to IPC of succeeding in registration that reception NVR returns;
Described IPC, for receiving the second multicast message that egress router sends, send the logon message of the identity ID of the identity ID carrying IPC self and the NVR that will register according to the second multicast message received, and receive the response message that succeeds in registration of the NVR that egress router forwards, be linked into NVR.
Wherein, described NVR and IPC is equipped with identical multicast address according to mutual administrative relationships are prewired.
Described IPC when sending logon message, to egress router outer net IP address, send logon message for the port numbers receiving IPC message, the identity ID that described logon message carries IPC and the identity ID of NVR that will register.
The methods, devices and systems of a kind of NVR managing I PC that the present invention proposes, NVR by multicast message to egress router send self IP address, identity ID and receive registered port numbers, egress router sends identity ID and the reception registered port numbers of this NVR to IPC by multicast message, so that IPC initiates registration to this port numbers and identity ID, and forward logon message to NVR, thus IPC is made to access NVR smoothly.Method configuration of the present invention is simple, easy to operate, is conducive to the installation of engineering site and the maintenance in later stage.
Accompanying drawing explanation
Fig. 1 is video monitoring system network diagram of the present invention;
Fig. 2 is the method flow diagram of NVR managing I PC of the present invention;
Fig. 3 is the apparatus structure schematic diagram of NVR managing I PC of the present invention.
Embodiment
Be described in further details technical solution of the present invention below in conjunction with drawings and Examples, following examples do not form limitation of the invention.
As shown in Figure 1, the egress router of Intranet enables NAT, NVR1 and NVR2 is in NAT, and IPC3 and IPC4 is outside NAT, and the existence due to NAT causes IPC3 and IPC4 to be connected to NVR.
As shown in Figure 2, the method for a kind of NVR managing I PC of the present embodiment, is applied to egress router, comprises the steps:
Step S1, reception NVR, with the IP address carrying this NVR of the multicast address of setting transmission, identity ID and the first multicast message receiving registered port numbers, resolve this first multicast message and set up forwarding-table item.
In the present embodiment, NVR and IPC gives tacit consent to the multicast address multicast_address of an agreement knows together, such as 224.0.2.254.For NVR, after this multicast address of configuration, for sending multicast message to this multicast address; For IPC, join in multicast group for sending multicast message to this multicast address.
First NVR sends the first multicast message with the multicast address of setting, the IP address of self, identity ID and reception registered port numbers are informed egress router, multicast message content comprises IP address, the identity ID of NVR, the follow-up port Port1 for receiving registration of this NVR, and such as 5060.
Egress router enables multicast, joins multicast group by the LAN interface of Intranet.Then after NVR sends multicast message to multicast address 224.0.2.254, the LAN interface of egress router can receive this multicast message of NVR transmission.Egress router obtains above-mentioned multicast message, and resolves the port numbers that this message obtains the IP address of NVR, the identity ID of NVR and NVR reception registration.
After the above-mentioned information of acquisition, egress router generates a forwarding-table item, as shown in table 1:
Table 1
In the tables of data generated, egress router is that each NVR distributes an outer net wan interface for receiving the port Port2 of IPC message, and the Port2 that such as NVR1 is corresponding is 2000.
Step S2, with described multicast address to IPC send carry egress router outer net IP address, the second multicast message for the identity ID of the port numbers and NVR that receive IPC message, so that the IPC being configured with described multicast address receives this second multicast message, and send logon message according to this second multicast message.
Egress router is by outer net wan interface, outer net multicast address multicast_address to the configuration of IPC correspondence is such as that 224.0.2.254 sends multicast message, the identity ID that this multicast message comprises outer net IP address such as 10.10.10.254, NVR of router is NVR1, the port Port2 of IPC message of egress router wan interface for receiving such as, and such as 2000.
Step S3, the logon message of the identity ID of NVR receiving the IPC identity ID that carries IPC and will register, forward the NVR of this logon message to correspondence according to the forwarding-table item set up.
IPC, by configuration multicast address, can be consistent with the multicast address of NVR, determine the administrative relationships of IPC and NVR.Namely which IPC NVR manages, and so the multicast address of these IPC is consistent with NVR multicast address with regard to what configure.Such as IPC3 is managed by NVR1, then the multicast address configuration of IPC3 is consistent with the multicast address of NVR1, be 224.0.2.254, thus IPC3 is in the multicast group of this multicast address, is convenient to the multicast message receiving egress router transmission.
Egress router wan interface sends multicast message, and IPC joins at outer net the multicast group that multicast address multicast_address is 224.0.2.254, obtains the multicast message that egress router sends.Such as IPC3 resolves identity ID such as NVR1, the port Port2 such as 2000 of IPC message of egress router wan interface for receiving that multicast message obtains outer net address such as 10.10.10.254, NVR of egress router.
IPC is by clean culture, and the identity ID carrying IPC self is IPC3, the identity ID such as NVR1 of NVR that will register such as, to outer net IP the address such as 10.10.10.254 and port Port2 such as 2000 of egress router wan interface, initiates registration.
After egress router wan interface receives this logon message, check forwarding-table item (table 1), by the identity ID of comparison NVR, egress router is this logon message, being forwarded to identity ID in Intranet by the LAN interface of egress router is the NVR that NVR1 is corresponding, and its object IP address is 202.169.100.8, port is Port1 (5060).
Step S4, receive the response message be transmitted to IPC of succeeding in registration that NVR returns.
Identity ID is the logon message that the NVR of NVR1 receives egress router and forwards, resolve this logon message, obtain the identity ID such as IPC3 of IPC corresponding in this logon message, identify this IPC and succeed in registration, and send to egress router LAN interface the response message that succeeds in registration.
It should be noted that IPC by clean culture to Exit Road by wan interface initiate registration, egress router obtains the IP address of IPC and the identity ID of IPC thus, and is forwarding accordingly afterwards, repeats no more here.
Egress router sends registration reply message by wan interface to IPC3, and now whole data channel is got through, and all business of follow-up NVR1 and IPC3, at this list item, is forwarded by egress router.
Fig. 3 shows the device of a kind of NVR managing I PC, and be provided with egress router between NVR and IPC, egress router enables NAT, and NVR is positioned at Intranet, and IPC is positioned at outer net, and this application of installation, in egress router, comprising:
Forwarding-table item sets up module, for receiving NVR with the IP address carrying this NVR of the multicast address of setting transmission, identity ID and the first multicast message receiving registered port numbers, resolving this first multicast message and setting up forwarding-table item;
Multicast module, for with described multicast address to IPC send carry egress router outer net IP address, the second multicast message for the identity ID of the port numbers and NVR that receive IPC message, so that the IPC being configured with described multicast address receives this second multicast message, and send logon message according to this second multicast message;
First forwarding module, for receiving the logon message of the identity ID of the identity ID that IPC carries IPC and the NVR that will register, forwards the NVR of this logon message to correspondence according to the forwarding-table item set up;
Second forwarding module, for the response message be transmitted to IPC of succeeding in registration receiving that NVR returns.
Above embodiment is only in order to illustrate technical scheme of the present invention but not to be limited; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection range that all should belong to the claim appended by the present invention.
Claims (7)
1. a method of NVR managing I PC, is provided with egress router between described NVR and IPC, and described egress router enables NAT, described NVR is positioned at Intranet, and described IPC is positioned at outer net, and described method is applied to egress router, it is characterized in that, described method comprises:
Receive NVR with the IP address carrying this NVR of the multicast address of setting transmission, identity ID and the first multicast message receiving registered port numbers, resolve this first multicast message and set up forwarding-table item;
With described multicast address to IPC send carry egress router outer net IP address, the second multicast message for the identity ID of the port numbers and NVR that receive IPC message, so that the IPC being configured with described multicast address receives this second multicast message, and send logon message according to this second multicast message;
The identity ID that reception IPC carries IPC and the logon message of the identity ID of the NVR that will register, forward this logon message to corresponding NVR according to the forwarding-table item set up;
Receive the response message be transmitted to IPC of succeeding in registration that NVR returns.
2. the method for NVR managing I PC according to claim 1, is characterized in that, described NVR and IPC is equipped with identical multicast address according to mutual administrative relationships are prewired.
3. the method for NVR managing I PC according to claim 1, it is characterized in that, described IPC is when sending logon message, to egress router outer net IP address, send logon message for the port numbers receiving IPC message, the identity ID that described logon message carries IPC and the identity ID of NVR that will register.
4. a device of NVR managing I PC, is provided with egress router between described NVR and IPC, and described egress router enables NAT, described NVR is positioned at Intranet, and described IPC is positioned at outer net, and described application of installation is in egress router, it is characterized in that, described device comprises:
Forwarding-table item sets up module, for receiving NVR with the IP address carrying this NVR of the multicast address of setting transmission, identity ID and the first multicast message receiving registered port numbers, resolving this first multicast message and setting up forwarding-table item;
Multicast module, for with described multicast address to IPC send carry egress router outer net IP address, the second multicast message for the identity ID of the port numbers and NVR that receive IPC message, so that the IPC being configured with described multicast address receives this second multicast message, and send logon message according to this second multicast message;
First forwarding module, for receiving the logon message of the identity ID of the identity ID that IPC carries IPC and the NVR that will register, forwards the NVR of this logon message to correspondence according to the forwarding-table item set up;
Second forwarding module, for the response message be transmitted to IPC of succeeding in registration receiving that NVR returns.
5. a video monitoring system, is characterized in that, described system comprises the NVR being positioned at Intranet, the IPC being positioned at outer net, and is arranged on the egress router between described NVR and IPC, and described egress router enables NAT, wherein:
Described NVR, for sending the first multicast message carrying the IP address of this NVR, identity ID and receive registered port numbers with the multicast address of setting, and receive the logon message from IPC of egress router forwarding, obtain the identity ID of IPC corresponding in this logon message, identify this IPC to succeed in registration, and send the response message that succeeds in registration;
Described egress router, for receiving the first multicast message that Intranet NVR sends, resolve this first multicast message and set up forwarding-table item, and with described multicast address to IPC send carry egress router outer net IP address, the second multicast message for the identity ID of the port numbers and NVR that receive IPC message, and receive the logon message of IPC transmission, this logon message is forwarded to corresponding NVR according to the forwarding-table item set up, and the response message be transmitted to IPC of succeeding in registration that reception NVR returns;
Described IPC, for receiving the second multicast message that egress router sends, send the logon message of the identity ID of the identity ID carrying IPC self and the NVR that will register according to the second multicast message received, and receive the response message that succeeds in registration of the NVR that egress router forwards, be linked into NVR.
6. video monitoring system according to claim 5, is characterized in that, described NVR and IPC is equipped with identical multicast address according to mutual administrative relationships are prewired.
7. video monitoring system according to claim 5, it is characterized in that, described IPC is when sending logon message, to egress router outer net IP address, send logon message for the port numbers receiving IPC message, the identity ID that described logon message carries IPC and the identity ID of NVR that will register.
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| CN111385520B (en) * | 2018-12-27 | 2022-04-12 | 浙江宇视科技有限公司 | Automatic networking method and device of video monitoring equipment |
| CN111385520A (en) * | 2018-12-27 | 2020-07-07 | 浙江宇视科技有限公司 | Automatic networking method and device of video monitoring equipment |
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| CN105553853B (en) | 2018-11-13 |
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