CN201805449U - Interactive system for obtaining IP address and information provided by manufacturer at the same time - Google Patents
Interactive system for obtaining IP address and information provided by manufacturer at the same time Download PDFInfo
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- CN201805449U CN201805449U CN 201020557583 CN201020557583U CN201805449U CN 201805449 U CN201805449 U CN 201805449U CN 201020557583 CN201020557583 CN 201020557583 CN 201020557583 U CN201020557583 U CN 201020557583U CN 201805449 U CN201805449 U CN 201805449U
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Abstract
The utility model discloses an interactive system for obtaining the IP address and the information provided by the manufacturer at the same time, which is mainly designed for uniformly managing all client terminal apparatus, and making each client terminal to obtain the IP address and the information provided by the manufacturer at the same time. The utility model comprises a DHCP PROXY, which is connected with at least one client terminal, receives request packets sent from the client terminal, and sends returning packets to the client terminal; and a DHCP server, which is arranged in the wide area network, connected with the DHCP PROXY, receives request packets sent from the DHCP PROXY, and sends returning packets to the DHCP PROXY. The utility model can not only uniformly distribute IP addresses for all client terminals connected with the DHCP PROXY, but also interactively obtaining the information provided by the manufacturer for the client terminal with the DHCP SERVER on the wide area network side under the not-on-line condition.
Description
Technical field
The utility model relates to the interactive system that a kind of client is obtained the information that IP address and manufacturer provide simultaneously.
Background technology
DHCP (DHCP, Dynamic Host Configuration Protocol) is a kind of consensus standard that is used to simplify the host ip configuration management.By employing DHCP standard, can use Dynamic Host Configuration Protocol server as all have enabled all TCP/IP settings of client distribution, configuration, tracking and change (in case of necessity) of DHCP on the network.In addition, DHCP can also guarantee not use the repeat to address (RA), redistribute untapped address, and can distribute suitable IP address for the subnet that connects automatically.General CPE (Customer Premise Equipment, ustomer premises access equipment) is as router, and switch etc. itself just are provided with Dynamic Host Configuration Protocol server (DHCP SERVER) and DHCP relay (DHCP RELAY).
When client and Dynamic Host Configuration Protocol server were in same subnet, each client can automatically obtain the IP address from Dynamic Host Configuration Protocol server.If but the client device that LAN inserts is asked OPTION 43 information in DHCP DISCORERY or DHCP REQUEST message, Dynamic Host Configuration Protocol server is not know to return each client device that what information inserts to LAN, can certainly inform how Dynamic Host Configuration Protocol server returns OPTION 43 information and give client device, but this underaction, and OPTION 43 information of revise replying if desired, because Dynamic Host Configuration Protocol server is arranged on user side, it is very inconvenient that operator will revise.
When client and Dynamic Host Configuration Protocol server are not in same subnet, the DHCP relay (DHCP Relay) of CPE be must enable and DHCP request and response message transmitted, equipment can get access to the IP address of WAN side and manufacturer's customizing messages etc. from wide area network (WAN, Wide Area Network) the side Dynamic Host Configuration Protocol server.But this mode DHCP relay is only transmitted the message of DHCP CLIENT with DHCP SERVER in the centre, its shortcoming is that CPE is operated in bridge mode, promptly transmits through DHCP relay, can not be operated in route pattern, that is to say that each client device of LAN side needs online, need earlier dialing voluntarily.
Along with networks development, client device not only has PC, also comprises camera or set-top box etc.For unified management, these client devices all need be distributed the IP address unitedly by DHCP SERVER by CPE.But camera and set-top box also need DHCP SERVER with the WAN side to obtain some specific manufacturer's information (such as the IPTV server address etc.) alternately sometimes, and traditional DHCP SERVER or DHCP RELAY do not satisfy this demand.
The utility model content
At the problems referred to above, the utility model provides a kind of can either be each client unified distribution IP address, can allow each client also can obtain alternately with the DHCP SERVER of WAN side under the situation that need not to surf the Net to obtain in the information that manufacturer provides the interactive system of the information that IP address and manufacturer provide again.
For achieving the above object, the interactive system of obtaining the information that IP address and manufacturer provide simultaneously described in the utility model comprises:
DHCP PROXY links to each other with at least one client, receives the request package that client sends, and sends a reply bag to client; And
Dynamic Host Configuration Protocol server is arranged in the wide area network, links to each other with described DHCP PROXY, receives the request package that described DHCP PROXY sends, and sends a reply bag to described DHCP PROXY.
Wherein, the described request bag is DHCPDISCOVER, or DHCPREQUEST, or DHCPINFORM.
Described answer bag is DHCPOFFER, or DHCPACK.
Further, described DHCP PROXY is arranged on the CPE.
The utility model is by being provided with described DHCP PROXY, and at DHCPSERVER of wide area network side deployment, DHCP PROXY is between the DHCP of client and wide area network side SERVER, make each client that is connected with described DHCP PROXY not only can distribute the IP address unitedly, even can also allow each client under the situation that does not have online, also can obtain the information that manufacturer provides alternately with the DHCP SERVER of wide area network side.The information that manufacturer provides can be the firmware upgrade server address, or the streaming media server address or the like.Manufacturer can be in make amendment information or upload new information of the DHCP of wide area network side SERVER end, and is all convenient to the maintenance or the upgrading of client device, avoided existing CPE such as router, the inconvenience that switch etc. generally are installed in user side and are brought.
Description of drawings
Fig. 1 obtains system's one example structure schematic diagram of the information that IP address and manufacturer provide simultaneously for the utility model;
Fig. 2 directly obtains the flow chart of IP address in the Dynamic Host Configuration Protocol server from subnet for client.
Embodiment
Below in conjunction with Figure of description embodiment of the present utility model is done detailed description.
Fig. 1 is an example structure schematic diagram that obtains the interactive system of the information that IP address and manufacturer provide simultaneously described in the utility model.Present embodiment comprises:
DHCP PROXY, STB links to each other with client, receives the request package that client STB sends, and sends a reply bag to client STB; And
Dynamic Host Configuration Protocol server is arranged in the wide area network, links to each other with described DHCP PROXY, receives the request package that described DHCP PROXY sends, and sends a reply bag to described DHCP PROXY.
Wherein, the described request bag is DHCPDISCOVER, or DHCPREQUEST, or DHCPINFORM.Described answer bag is DHCPOFFER, or DHCPACK.Client is set-top box (STB) in the present embodiment.Described DHCP PROXY is arranged on the CPE.
It is as follows that present embodiment client set top box STB obtains the process prescription of the IP address of unified distribution and the information that manufacturer provides:
Step 1, STB send DHCP DISCOVRY message to DHCP PROXY, and DHCP PROXY extracts OPTION 60 features in the message, if satisfy characteristic specified, then carries out next step, otherwise, directly obtain the IP address in the Dynamic Host Configuration Protocol server from subnet.
All OPTION options in the DHCP DISCOVRY message in step 2, the DHCP PROXY reservation step 1, construct a DHCP REQUEST message and send to the DHCP SERVER of WAN side, this DHCP REQUEST message uses the MAC Address of the WAN mouth of DHCP PROXY.
After step 3, WAN side DHCP SERVER receive the DHCP REQUEST message of DHCP PROXY, will return DHCPACK and give DHCP PROXY.The OPTION field information that should have STB equipment needs in this DHCPACK message.
After step 4, DHCP PROXY receive the DHCP ACK message of WAN side DHCP SERVER, keep all the DHCP OPTION fields in the DHCP ACK message, construct a DHCP OFFER message, distribute a private net address to give STB equipment (such as 192.168.1.x).
Step 5, STB equipment are received DHCP OFFER message, respond DHCP REQUEST message and give DHCP PROXY.
Step 6, DHCP PROXY receive DHCP REQUEST message, and the OPTION option that same reservation is all is constructed the DHCP SERVER that a DHCP REQUEST message sends to the WAN side.
After step 7, WAN side DHCP SERVER receive the DHCP REQUEST message of DHCP PROXY, will return DHCPACK and give DHCP PROXY.The OPTION field information that should have STB equipment needs in this DHCPACK message.
After step 8, DHCP PROXY receive the DHCPACK message of WAN side DHCP SERVER, keep all the DHCP OPTION fields in the DHCP ACK message, construct a DHCP ACK message, the DHCP REQUEST of response STB equipment gets access to the specific information that WAN side DHCP SERVER is distributed.
Step 9, flow process finish.
Wherein, the DHCP REQUEST described in the step 5 can be a DHCP INFORM message, and DHCP PROXY receives DHCP INFORM message in then rapid 6.
STB equipment had both got access to the private net address that CPE distributes in the present embodiment, had also got access to the information that WAN side DHCP SERVER manufacturer provides simultaneously.Among the embodiment, the definition of OPTION field information can be referring to the RFC2132 standard.
During said process is described, the process that described client is directly obtained the IP address in the Dynamic Host Configuration Protocol server from subnet as shown in Figure 2, its concrete steps are described below:
1, the discovery stage: promptly dhcp client is sought the stage of Dynamic Host Configuration Protocol server.Client sends the DHCPDISCOVER bag with broadcast mode, has only Dynamic Host Configuration Protocol server just can respond.
2, provide the stage: promptly Dynamic Host Configuration Protocol server provides the stage of IP address.After Dynamic Host Configuration Protocol server receives the DHCPDISCOVER bag of client, select a still unappropriated IP address assignment to give client in the secondary IP address pond, send to this client and comprise the IP address leased and the DHCPOFFER bag of other configuration informations.
3, the choice phase: promptly dhcp client is selected the stage of IP address.If there are many Dynamic Host Configuration Protocol server to send the DHCPOFFER bag to this client, client is random choose therefrom, respond the DHCPREQUEST bag with the forms of broadcasting to each Dynamic Host Configuration Protocol server then, the address that the Dynamic Host Configuration Protocol server that declaration uses it to choose provides, and formally ask this Dynamic Host Configuration Protocol server to distribute the address.After the Dynamic Host Configuration Protocol server of other all transmission DHCPOFFER bags received this packet, will discharging, OFFER (preassignment) gave the IP address of client.
Comprise invalid configuration parameter if send in the DHCPOFFER bag of dhcp client, client can send DHCPDECLINE bag refusal to server and accept the configuration information that distributed.
4, the stage of recognition: promptly Dynamic Host Configuration Protocol server is provided by the stage of the IP address that provides.After Dynamic Host Configuration Protocol server is received the DHCPREQUEST bag that dhcp client sends, just send and comprise IP address that it provides and the DHCPACK of other configuration informations confirms bag to client.Then, dhcp client will receive and use IP address and other TCP/IP configuration parameters.
Above-mentioned each data packet format and implication are as shown in table 1:
Concrete form of table 1 packet and implication thereof
The utility model is by being provided with DHCP PROXY, dispose a DHCPSERVER in wide area network side again, described DHCP PROXY is between the DHCP of client and wide area network side SERVER, make client device can obtain the information that IP address and wide area network side manufacturer provide simultaneously, so that manufacturer carries out maintenance upgrade or related data is provided equipment, as the firmware upgrade service, or provide Streaming Media etc. for set-top box.
More than; it only is preferred embodiment of the present utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range that claim was defined.
Claims (4)
1. an interactive system of obtaining the information that IP address and manufacturer provide simultaneously is characterized in that, comprising:
DHCP PROXY links to each other with at least one client, receives the request package that client sends, and sends a reply bag to client; And
Dynamic Host Configuration Protocol server is arranged in the wide area network, links to each other with described DHCP PROXY, receives the request package that described DHCP PROXY sends, and sends a reply bag to described DHCP PROXY.
2. according to the described interactive system of obtaining the information that IP address and manufacturer provide simultaneously of claim 1, it is characterized in that the described request bag is DHCPDISCOVER, or DHCPREQUEST, or DHCPINFORM.
3. according to the described interactive system of obtaining the information that IP address and manufacturer provide simultaneously of claim 1, it is characterized in that described answer bag is DHCPOFFER, or DHCPACK.
4. according to the described interactive system of obtaining the information that IP address and manufacturer provide simultaneously of claim 1, it is characterized in that described DHCP PROXY is arranged on the CPE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020557583 CN201805449U (en) | 2010-10-12 | 2010-10-12 | Interactive system for obtaining IP address and information provided by manufacturer at the same time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020557583 CN201805449U (en) | 2010-10-12 | 2010-10-12 | Interactive system for obtaining IP address and information provided by manufacturer at the same time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201805449U true CN201805449U (en) | 2011-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020557583 Expired - Lifetime CN201805449U (en) | 2010-10-12 | 2010-10-12 | Interactive system for obtaining IP address and information provided by manufacturer at the same time |
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| CN (1) | CN201805449U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104219173A (en) * | 2014-09-10 | 2014-12-17 | 珠海市君天电子科技有限公司 | Local area network connection method, device and system based on DHCP (dynamic host configuration protocol) |
-
2010
- 2010-10-12 CN CN 201020557583 patent/CN201805449U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104219173A (en) * | 2014-09-10 | 2014-12-17 | 珠海市君天电子科技有限公司 | Local area network connection method, device and system based on DHCP (dynamic host configuration protocol) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518054, Guangdong province Nanshan District Shekou Shenzhen Nanshan Road No. 1019 hundred surplus medical instrument Park A, B block 2, A211-A213, B201-210 Patentee after: Shenzhen Gongjin Electronics Co., Ltd. Address before: 518054, Guangdong province Nanshan District Shekou Shenzhen Nanshan Road No. 1019 hundred surplus medical instrument Park A, B block 2, A211-A213, B201-210 Patentee before: Shenzhen Gongjin Electronics Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110420 |
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| CX01 | Expiry of patent term |