CN102710439A - Obtaining method of user terminal parameter information - Google Patents
Obtaining method of user terminal parameter information Download PDFInfo
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- CN102710439A CN102710439A CN2012101690683A CN201210169068A CN102710439A CN 102710439 A CN102710439 A CN 102710439A CN 2012101690683 A CN2012101690683 A CN 2012101690683A CN 201210169068 A CN201210169068 A CN 201210169068A CN 102710439 A CN102710439 A CN 102710439A
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Abstract
The invention discloses an obtaining method of user terminal parameter information. A terminal management system obtains the parameter information of a user terminal at a gateway LAN (Local Area Network) side through records in a gateway memory hung below the terminal management system. The obtaining method comprises the following steps: a gateway broadcasts an ARP (Address Resolution Protocol) request packet to the user terminal at the gateway LAN side periodically or when a query request of the terminal management system is received; the user terminal feeds an MAC (Medium Access Controller) address and an IP (Internet Protocol) address corresponding to the user terminal self back to the gateway after receiving the ARP request packet, the gateway judges records in an ARP cache list, correspondingly updates the user terminal parameter information stored in the gateway memory according to judgment results and finally transmits the updated user terminal parameter information in the memory to the terminal management system. Compared with the prior art, the obtaining method has the benefit that the terminal management system can timely and accurately obtain the parameter information of an inactive user terminal and a new terminal and further realizes the real-time blind spot-free query and management of the user terminal on the gateway LAN side.
Description
Technical field
The present invention relates to the computer network communication technology field, relate in particular to a kind of acquisition methods of user terminal parameter information, terminal management system is obtained the parameter information of the user terminal of gateway LAN side through the record in its gateway internal memory of hanging down.
Background technology
Along with development communication technologies; Particularly cloud computing, technology such as mobile Internet and Internet of Things emerges rapidly, and various intelligent terminals occur; Server or local side are particularly important with management to the real-time discovery of user terminal, with convenient professional in time issuing and data processing.This argumentation has proposed a kind of method can realize the real-time no blind spot inquiry of terminal management system to user terminal, makes things convenient for inquiry and the management of terminal management system to user terminal, has a good application prospect.
Inquiry and management to gateway LAN side user terminal in present terminal management system are to initiate query requests through terminal management system, directly read the information of the user terminal of gateway internal memory then.The triggering mode of gateway internal memory recording user terminal parameter information is behind the user terminal IAD at present; DHCP (Dynamic Host Configuration Protocol in the gateway; DynamicHost is provided with agreement) server is that this user terminal distributes a dynamic IP addressing; Deposit relevant parameters information in the gateway internal memory simultaneously, recorded information reports in gateway is received after terminal management system is initiated query requests directly with the gateway internal memory.This method is simple, and is quick, but this method is not enough below existing:
At first, the information that reads is not up-to-date terminal information, because the IP address at terminal can change, the information that directly reads in the internal memory might be out-of-date or error message;
Secondly, the triggering mode of recording user terminal parameter information is after gateway DHCP is user terminal distributing IP address in the gateway internal memory at present, application internal memory record relevant parameters information; But the user who has in the practical application likes manually being provided with the IP address; Here we are called the inertia terminal if user terminal discord gateway has communication, and gateway just can not be found user terminal, and internal memory can not write down relevant parameters information yet; This will cause terminal management system the inquiry blind spot to occur; Can not inquire about and find all user terminals, administrative vulnerability occur, problems such as sending down service mistake;
At last, come in or user terminal parameter when changing, when a new user terminal if non-active inquiry of terminal management system just can not in time be found.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art; A kind of acquisition methods of user terminal parameter information is provided; The parameter information that can make terminal management system obtain inertia (do not have communicate by letter with gateway) user terminal timely and accurately and the terminal newly occur, and then make terminal management system realize the inquiry and the management of no blind spot in real time to gateway LAN side user terminal.
The present invention is concrete to adopt following technical scheme to solve the problems of the technologies described above.
A kind of acquisition methods of user terminal parameter information, terminal management system is obtained the parameter information of the user terminal of gateway LAN side through the record in its gateway internal memory of hanging down, may further comprise the steps:
Step 1, when gateway is received the query requests of terminal management system or according to user terminal broadcast arp (Address Resoluition Protocol, the address resolution protocol) request package of predetermined period to its LAN side; In the header of said ARP request package, sending MAC Address is the MAC of gateway, and the IP address is the IP address of gateway, and Destination MAC is the legal network segment that gateway allows for broadcasting MAC Address, Target IP;
Step 2, user terminal respond back bag at once after receiving the ARP request package, IP address of using and corresponding physical MAC notification gateway;
Step 3, gateway receive that the ARP of all user terminals of LAN side goes back to the bag back and upgrades the arp cache tabulation, write the arp cache table to corresponding MAC and IP;
Step 4, gateway read arp cache list records item one by one and judge whether needs the respective record in the updating memory, specifically comprises:
Step 401, read the record item in the arp cache tabulation, judge whether the IP address in this record item is LAN side address, if not, then change step 406;
Step 402, a MAC Address that will write down are compared with the record in the internal memory, judge whether it is the user terminal that newly adds, and if not, then change getting into step 404;
Step 403, application memory headroom are created new record item, the IP address at recording user terminal, IP address class type, physics MAC Address, belong to parameter information such as which network interface; When judging the IP address class type, IP address and DHCP have distributed address pool relatively, if belong to distribution list IP address, then the IP address class type is DHCP, otherwise is STATIC;
Step 404, relatively in the internal memory parameter information of this user terminal with newly read this user terminal parameter information and whether change, if not, then change step 407;
The parameter information of this user terminal of record changes step 403 in step 405, the deletion internal memory;
Step 406, read the next record item and the repeating step 401-step 405 of arp cache tabulation, if the next record item is that sky then gets into step 407;
Step 407, withdraw from;
Step 5, according to the judged result of step 4 respective record in the new gateway internal memory more;
Step 6, gateway report terminal management system with the record in the internal memory.
Compare prior art; The parameter information that the inventive method can make terminal management system obtain inertia (do not have communicate by letter with gateway) user terminal timely and accurately and the terminal newly occur, and then make terminal management system realize the inquiry and the management of no blind spot in real time to gateway LAN side user terminal.
Description of drawings
Fig. 1 is the process sketch map of the acquisition methods of user terminal parameter information of the present invention;
Fig. 2 reads and judges the flow chart of arp cache list records for gateway.
Embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is elaborated:
Invention thinking of the present invention is regularly or when receiving the query requests of terminal management system to broadcast an ARP request package to its LAN side user terminal by gateway; After user terminal is received the ARP request package; Feed back to gateway to the MAC Address of the correspondence of self, IP address; Gateway is judged the record in the arp cache tabulation; And according to judged result the user terminal parameter information that stores in the gateway internal memory is upgraded accordingly, the user terminal parameter information in the internal memory after will upgrading at last sends to terminal management system.The inventive method specifically may further comprise the steps:
Step 1, when gateway is received the query requests of terminal management system or according to the user terminal broadcast arp request package of predetermined period to its LAN side.
Among the present invention, gateway can adopt the mode of periodic polling to the inquiry of user terminal parameter information, also can answer the request of terminal management system.Because traditional ARP agreement is mainly obtained side mac address when known the other side IP address, its header format is following:
ARPmsg?{
Struct ethhdr ethhdr; / * Ethernet head */
Int hardwaretype; / * type of hardware */
Int protocoltype; / * Ethernet protocol type */
Int hardwarelen; / * hardware address length */
Char protocollen; / * protocol type */
Int operation; / * ARP operation */
Char sendMACr [6]; / * transmitting terminal MAC Address */
Char sendIP [4]; / * transmitting terminal IP address */
Char targetMAC [6]; / * destination MAC Address */
Char targetIP [4]; / * destination IP address */
}；
If gateway does not know that user terminal IP address is to obtain MAC Address, therefore can't realize inquiry to user terminal IP and physics MAC, need make amendment to the header of ARP request package.For this reason, the present invention has carried out definition again to the header of traditional ARP request package: sending MAC Address is the MAC of gateway, and the IP address is the IP address of gateway, and Destination MAC is the legal network segment that gateway allows for broadcasting MAC Address, Target IP.Adopt the ARP request package of definition again can realize inquiry, the header of the ARP request package of the redetermination of below attaching most importance to user terminal IP and physics MAC:
ARPmsg?{
Struct ethhdr ethhdr; / * Ethernet head */
Int hardwaretype; / * type of hardware */
Int protocoltype; / * Ethernet protocol type */
Int hardwarelen; / * hardware address length */
Char protocollen; / * protocol type */
Int operation; / * ARP operation */
Char sendMACr [6]; / * transmitting terminal MAC Address */
Char sendIP [4]; / * transmitting terminal IP address */
Char targetMAC [6]=ARP broadcasting MAC Address/* end MAC Address */
Char targetIP [4]=legal network segment IP address/* destination IP address */
}。
Step 2, user terminal respond back bag at once after receiving the ARP request package, IP address of using and corresponding physical MAC notification gateway;
Step 3, gateway receive that the ARP of all user terminals of LAN side goes back to the bag back and upgrades the arp cache tabulation, write the arp cache table to corresponding MAC and IP;
Step 4, gateway read arp cache list records item one by one and need to judge whether the respective record in the updating memory.
What gateway A RP cache list write down is WAN and all IP addresses of LAN side, mac address information, and the ARP record can not judge directly that the IP address is STATIC or DHCP type in addition.Therefore need to extract LAN side user terminal parameter information, every record is judged.
This step specifically comprises following substep:
Step 401, read the record item in the arp cache tabulation, judge whether the IP address in this record item is LAN side address, if not, then change step 406;
Step 402, a MAC Address that will write down are compared with the record in the internal memory, judge whether it is the user terminal that newly adds, and if not, then change getting into step 404;
Step 403, application memory headroom are created new record item, the IP address at recording user terminal, IP address class type, physics MAC Address, belong to parameter information such as which network interface; When judging the IP address class type, IP address and DHCP have distributed address pool relatively, if belong to distribution list IP address, then the IP address class type is DHCP, otherwise is STATIC;
Step 404, relatively in the internal memory parameter information of this user terminal with newly read this user terminal parameter information and whether change, if not, then change step 407;
The parameter information of this user terminal of record changes step 403 in step 405, the deletion internal memory;
Step 406, read the next record item and the repeating step 401-step 405 of arp cache tabulation, if the next record item is that sky then gets into step 407;
Step 407, withdraw from;
Step 5, according to the judged result of step 4 respective record in the new gateway internal memory more, promptly the parameter information at new adding terminal and need the updated parameters item to write in the gateway internal memory;
Step 6, gateway report terminal management system with the record in the internal memory.
Make much of technical scheme of the present invention for the ease of the public, lift an instantiation below.
Suppose that gateway LAN side has four user terminals, is respectively: user terminal 1, user terminal 2, user terminal 3,4, four user terminal corresponding parameters of user terminal information is specific as follows:
User terminal 1:IP=192.168.1.2, type DHCP, MAC=AA:BB:CC:DD
User terminal 2:IP=192.168.1.3, type STATIC, MAC=BB:AA:CC:DD
User terminal 3:IP=192.168.1.4, type DHCP, MAC=CC:AA:BB:DD
User terminal 4:IP=192.168.1.5, type STATIC, MAC=DD:AA:BB:CC
Suppose that current user terminals stored information is following in the gateway internal memory:
User terminal 1:IP=192.168.1.12, type STATIC, MAC=AA:BB:CC:DD
User terminal 2:IP=192.168.1.13, type DHCP, MAC=BB:AA:CC:DD
As adopt traditional terminal management system to inquire about gateway LAN side user terminal parameter information method; Terminal management system is initiated query requests; After gateway is received request, directly parameter information in the internal memory is reported promptly only user terminal 1 and 2 reporting parameters, actual gateway LAN side has four user terminals; The inquiry blind spot appears in clearly this method, can not in time find new user terminal.
When adopting the inventive method, its process is as shown in Figure 1, specifically according to following method:
(1) gateway one arrives in the query requests of receiving terminal management system or polling cycle T constantly; Broadcast the ARP request package that the present invention defines again to the LAN side; Char targetMAC [6]=FF:FF:FF:FF wherein, char targetIP [4]=192.168.1.0;
(2) all LAN side user terminals: user terminal 1～user terminal 4 all can be received the ARP request package that gateway is sent out, and responds back bag after receiving at once, and following information is sent to gateway:
User terminal 1:IP=192.168.1.2, MAC=AA:BB:CC:DD
User terminal 2:IP=192.168.1.3, MAC=BB:AA:CC:DD
User terminal 3:IP=192.168.1.4, MAC=CC:AA:BB:DD
User terminal 4:IP=192.168.1.5, MAC=DD:AA:BB:CC
(3) after gateway is received the respond packet at all terminals of LAN side, will use IP=192.168.1.2; MAC=AA:BB:CC:DD, and IP=192.168.1.3, MAC=BB:AA:CC:DD, IP=192.168.1.4, MAC=CC:AA:BB:DD, IP=192.168.1.5, MAC=DD:AA:BB:CC upgrade the arp cache tabulation;
(4) gateway reads ARP list records and each bar is judged that detailed judgement flow process is as shown in Figure 2, and judged result is distinguished as follows:
User terminal 1: record is arranged in the internal memory, and IP address and type need be upgraded, so delete former record earlier, inquiry DHCP distributing IP address list is DHCP;
User terminal 2: record is arranged in the internal memory, and IP address and type need be upgraded, so delete former record earlier, inquiry DHCP distributing IP address list is STATIC;
User terminal 3: internal memory does not have record, the application memory headroom, and inquiry DHCP distributing IP address list is DHCP;
User terminal 4: internal memory does not have record, the application memory headroom, and inquiry DHCP distributing IP address list is STATIC;
(5) write needs updated parameters item in the gateway internal memory;
(6) gateway reports terminal management system to record in the internal memory, upgrades the parameter information of user terminal on the terminal management system.
Claims (1)
1. the acquisition methods of a user terminal parameter information, terminal management system is obtained the parameter information of the user terminal of gateway LAN side through the record in its gateway internal memory of hanging down, it is characterized in that, may further comprise the steps:
Step 1, when gateway is received the query requests of terminal management system or according to the user terminal broadcast arp request package of predetermined period to its LAN side; In the header of said ARP request package, sending MAC Address is the MAC of gateway, and the IP address is the IP address of gateway, and Destination MAC is the legal network segment that gateway allows for broadcasting MAC Address, Target IP;
Step 2, user terminal respond back bag at once after receiving the ARP request package, IP address of using and corresponding physical MAC notification gateway;
Step 3, gateway receive that the ARP of all user terminals of LAN side goes back to the bag back and upgrades the arp cache tabulation, write the arp cache table to corresponding MAC and IP;
Step 4, gateway read arp cache list records item one by one and judge whether needs the respective record in the updating memory, specifically comprises:
Step 401, read the record item in the arp cache tabulation, judge whether the IP address in this record item is LAN side address, if not, then change step 406;
Step 402, a MAC Address that will write down are compared with the record in the internal memory, judge whether it is the user terminal that newly adds, and if not, then change getting into step 404;
Step 403, application memory headroom are created new record item, the IP address at recording user terminal, IP address class type, physics MAC Address, belong to parameter information such as which network interface; When judging the IP address class type, IP address and DHCP have distributed address pool relatively, if belong to distribution list IP address, then the IP address class type is DHCP, otherwise is STATIC;
Step 404, relatively in the internal memory parameter information of this user terminal with newly read this user terminal parameter information and whether change, if not, then change step 407;
The parameter information of this user terminal of record changes step 403 in step 405, the deletion internal memory;
Step 406, read the next record item and the repeating step 401-step 405 of arp cache tabulation, if the next record item is that sky then gets into step 407;
Step 407, withdraw from;
Step 5, according to the judged result of step 4 respective record in the new gateway internal memory more;
Step 6, gateway report terminal management system with the record in the internal memory.
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| CN103259732A (en) * | 2013-04-03 | 2013-08-21 | 北京邮电大学 | SDN broadcast processing method triggering agent based on ARP event |
| CN103812722A (en) * | 2012-11-14 | 2014-05-21 | 纬创资通股份有限公司 | Detection method for network system and network system |
| CN103824442A (en) * | 2014-03-05 | 2014-05-28 | 安徽汉高电子科技有限公司 | Real-time inquiring system for electricity utilization information based on electricity network |
| CN104601737A (en) * | 2013-10-31 | 2015-05-06 | 上海斐讯数据通信技术有限公司 | Method for AP (Access Point) to acquire IP (Internet Protocol) addresses of clients |
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| CN103812722B (en) * | 2012-11-14 | 2017-10-24 | 纬创资通股份有限公司 | Detection method for network system and network system |
| CN103259732A (en) * | 2013-04-03 | 2013-08-21 | 北京邮电大学 | SDN broadcast processing method triggering agent based on ARP event |
| CN103259732B (en) * | 2013-04-03 | 2016-09-28 | 北京邮电大学 | A kind of SDN broadcast processing method triggering agency based on ARP event |
| CN104601737B (en) * | 2013-10-31 | 2018-05-01 | 上海斐讯数据通信技术有限公司 | The method that AP obtains client ip address |
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| CN104869553A (en) * | 2015-05-22 | 2015-08-26 | 上海斐讯数据通信技术有限公司 | Electronic equipment discovery method and apparatus, and router |
| CN105227695B (en) * | 2015-10-19 | 2018-07-17 | 华讯方舟科技有限公司 | Access point based on multiple VLAN obtains the method and device of client mac address |
| CN105227695A (en) * | 2015-10-19 | 2016-01-06 | 深圳市华讯方舟科技有限公司 | Access point based on multiple VLAN obtains method and the device of client mac address |
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| CN109842692B (en) * | 2018-11-13 | 2022-06-14 | 联想企业解决方案(新加坡)有限公司 | VxLAN switch, system and method for obtaining host information in physical network |
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| CN111431911A (en) * | 2020-03-30 | 2020-07-17 | 绿盟科技集团股份有限公司 | Method for collecting basic information of equipment in network, network edge equipment and network equipment |
| CN111431911B (en) * | 2020-03-30 | 2022-08-12 | 绿盟科技集团股份有限公司 | Method for collecting basic information of equipment in network, network edge equipment and network equipment |
| CN114039946A (en) * | 2020-07-21 | 2022-02-11 | 阿里巴巴集团控股有限公司 | Message transmission method and device, electronic device and storage medium |
| CN112383425A (en) * | 2020-11-11 | 2021-02-19 | 迈普通信技术股份有限公司 | VXLAN network-based terminal discovery system and method |
| CN112383425B (en) * | 2020-11-11 | 2022-07-08 | 迈普通信技术股份有限公司 | VXLAN network-based terminal discovery system and method |
| CN114268603A (en) * | 2021-11-09 | 2022-04-01 | 国网浙江省电力有限公司宁波供电公司 | Method and equipment for automatically acquiring IP address of power distribution automation terminal |
| CN114268603B (en) * | 2021-11-09 | 2023-09-22 | 国网浙江省电力有限公司宁波供电公司 | Method and equipment for automatically acquiring IP address of power distribution automation terminal |
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