CN105871631B - A method of it is given for change based on snmp protocol and loses IP - Google Patents
A method of it is given for change based on snmp protocol and loses IP Download PDFInfo
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- CN105871631B CN105871631B CN201610374860.0A CN201610374860A CN105871631B CN 105871631 B CN105871631 B CN 105871631B CN 201610374860 A CN201610374860 A CN 201610374860A CN 105871631 B CN105871631 B CN 105871631B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/02—Standardisation; Integration
- H04L41/0213—Standardised network management protocols, e.g. simple network management protocol [SNMP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5007—Internet protocol [IP] addresses
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- Signal Processing (AREA)
- Small-Scale Networks (AREA)
- Computer And Data Communications (AREA)
Abstract
The present invention relates to a kind of methods for giving target control device losses IP address for change based on snmp protocol, comprising steps of SNMP network management distributes equipment of the virtual IP to IP is lost；The virtual IP address and the static binding item of equipment MAC are added in arp cache on local computing；The port for changing SNMP simultaneously is that equipment arranges port, executes SNMP to virtual IP address and writes virtual IP address order；Equipment gets the order, and the IP for updating oneself is virtual IP address；The reduction port SNMP is standard port, executes SNMP to virtual IP address and reads original IP order, equipment returns to original IP information；SNMP reset command is executed to virtual IP address, equipment will be reduced into former IP.The method of the present invention does not pick out to come especially suitable for the serial ports in the network equipment, perhaps does not have to obtain the IP address of the network equipment below the case where serial port connecting wire or tool without serial ports or client, greatly facilitates the maintenance and management of SNMP network.
Description
Technical field
It is the present invention relates to field of communication technology, in particular to a kind of to give the side that de- tube apparatus loses IP for change based on snmp protocol
Method.
Background technique
With the development of computer network, network becomes to become increasingly complex, and network management system also seems more in the entire network
Come more important.SNMP (Simple Network Management Protocol) network management system is the Network Management System based on snmp protocol comprising
SNMP network management workstation and managed devices；Pass through SNMP message (SNMP association between SNMP network management workstation and managed devices
View defines five kinds of SNMP reports of Get-Request, Get-Next-Request, Get-Response, Set-Request and Trap
Text) it is communicated, SNMP network management workstation is read or MIB (management information bank) information of setting managed devices, realizes network
The function of management.
When having more managed device in SNMP network management system, each equipment correspondence possesses at least one IP address, in this way
Network management is caused to need to manage the IP address of large number of equipment, user may accidentally delete some Network Management Equipment in actual operation,
Again original IP address that the equipment has forgotten the equipment again is added, so as to cause the de- pipe of the equipment.
Therefore there is an urgent need to have one kind that can give for change based on snmp protocol to lose IP address equipment for existing SNMP network management system
Method, solve the problem of that under SNMP network management system, Network Management Equipment IP address loss causes to be detached from SNMP network management.
Summary of the invention
The present invention provides a kind of method given for change based on snmp protocol and lose IP, for solving the network management under SNMP network management
The problem of device IP is lost.
To achieve the purpose of the present invention, a kind of side for being given for change target control device losses IP address based on snmp protocol is provided
Method, comprising:
Step 101, a virtual ip address is distributed on the computer of SNMP network management, and by the virtual ip address and target tube
Control the MAC Address static binding of equipment；
Step 102, SNMP network management sends SNMP to the virtual ip address and writes virtual IP address order, and target management and control devices can receive
Virtual IP address order is write to the SNMP, by parsing the data packet of the order, therefrom obtains the virtual ip address information, thus according to
The IP address of the target management and control devices itself is changed to the virtual ip address by the order, and is come into force；
Step 103, SNMP network management sends SNMP to the virtual ip address and reads original IP order, which receives
The SNMP reads original IP order, returns the former IP information of the target management and control devices as the SNMP reply data for reading original IP order
Give SNMP network management；
Step 104, SNMP network management sends the order of SNMP device reset to the virtual ip address, which receives
It to the SNMP device reset order, executes and resets operation, the IP address configuration of the target management and control devices is reduced to former IP address,
Hereafter SNMP network management can use original IP address to carry out normal SNMP operation to the target management and control devices.
In the above-mentioned technical solutions, the step 101, which may further comprise:, verifies the virtual ip address to ensure that this is virtual
IP address is not used by the other equipment in network, and/or, verify the MAC Address of the virtual ip address and target management and control devices
Static binding whether succeed.
In the above-mentioned technical solutions, in the step 102, which does not believe the virtual ip address configured
Breath is saved in nonvolatile memory.
In the above-mentioned technical solutions, in the step 102, SNMP network management using the target management and control devices agreement port to
The virtual ip address sends SNMP and reads original IP order.
In the above-mentioned technical solutions, the step 102 may further comprise: that the IP address for verifying the target management and control devices is
It is no to be changed to the virtual ip address.
In the above-mentioned technical solutions, in the step 103, SNMP network management uses SNMP standard port to the virtual ip address
It sends SNMP and reads original IP order；In the step 104, SNMP network management is sent using SNMP standard port to the virtual ip address
SNMP device reset order.
In the above-mentioned technical solutions, in the step 102, which receives the SNMP from link layer and writes virtually
The data packet of IP order.
In the above-mentioned technical solutions, which parses the data packet, judge destination IP in the data packet and
Whether the IP of itself is consistent, if it is, parsing snmp protocol by normal process as normal SNMP packet；If not certainly
The IP of body then continues to judge whether the port SNMP that the data packet uses is agreement port, if not agreement port, then it is assumed that
The data packet is that illegal data packet directly abandons；If being due up port, continue to judge whether the data packet is to write virtually
The order of IP is not that data packet directly abandons；The virtual ip address information is then got if being；The target management and control devices root
According to the virtual ip address information of acquisition, the IP address for changing itself is the virtual ip address.
The present invention achieves following technical effect:
The IP for giving loss for change by way of SNMP network is not picked out suitable for serial ports and, or does not have serial ports, or
Person client does not have to obtain IP below the case where serial port connecting wire or tool, greatly facilitates maintenance and the pipe of SNMP network
Reason.
Detailed description of the invention
Fig. 1 is that the present invention implements the schematic diagram for giving the method for losing IP for change based on snmp protocol；
Fig. 2 is that the present invention implements the flow chart for giving the method for losing IP for change based on snmp protocol；
Fig. 3 writes virtual IP address order after equipment receives the order to virtual IP address execution SNMP for network management and parses the data packet
Flow chart.
Specific embodiment
Understand for the ease of those of ordinary skill in the art and implement the present invention, with reference to the accompanying drawing and specific embodiment
The present invention is described in further detail.
Fig. 1 is that the present invention implements the schematic diagram for giving the method for losing IP for change based on snmp protocol.
Shown in Figure 1, the method for giving loss IP for change based on snmp protocol includes the following steps:
Step 101: a virtual ip address is distributed on the computer of SNMP network management, and on the computer by the virtual IP address
The MAC Address static binding of location and target management and control devices；The target management and control devices are to need to carry out pipe on the SNMP network management
Manage the equipment of control but due to lack the IP address of the equipment and temporarily cannot in the SNMP network management access control, the target
Management and control devices possible configuration crosses IP address, but the IP address reasons such as is accidentally deleted and is lost, or is also likely to be the target tube
Control equipment did not configure IP address at all and was still initial default IP address.And the MAC Address of the target management and control devices is general
It can be marked directly on these network equipments, or be recorded on associated documents, and in shipment for these network equipments
For its MAC Address be fixed and not modifiable.The virtual ip address must with target management and control devices in same network segment, and
And other equipment or computer conflict in consolidated network of getting along well.
Step 102:SNMP network management sends SNMP to the virtual ip address and writes virtual IP address order, due to the virtual ip address and
The MAC Address of target management and control devices can be received the SNMP and be write virtual IP address order by static binding, target management and control devices, the target
Management and control devices therefrom obtain the virtual ip address information, thus according to the order by the mesh by parsing the data packet of the order
The IP address of mark management and control devices itself is changed to the virtual ip address, and comes into force.The target management and control devices will not be configured
The virtual ip address information preservation into nonvolatile memories such as FLASH.
Step 103:SNMP network management sends SNMP to the virtual ip address and reads original IP order, is changed to own IP address
The target management and control devices of the virtual ip address receive the SNMP and read original IP order, by the former IP information of the target management and control devices
SNMP network management is returned to as the SNMP reply data for reading original IP order.SNMP network management records the former IP of the target management and control devices
Address information.
Step 104:SNMP network management sends the order of SNMP device reset to the virtual ip address, changes own IP address
The SNMP device reset order is received for the target management and control devices of the virtual ip address, which will execute multiple
Bit manipulation, since the virtual ip address information in step 102 is not saved in the nonvolatile memories such as FLASH, to work as
The target management and control devices, which execute to configure the IP address of the target management and control devices when resetting operation, is reduced to former IP address state,
Hereafter SNMP network management can use original IP address to carry out normal SNMP read-write operation to the target management and control devices.
Above-mentioned SNMP writes virtual IP address order, and SNMP reads original IP order, and SNMP device IP reset command all uses mark
The format of quasi- SNMP order, it is only necessary to increase the corresponding SNMP node of above-mentioned 3 kinds of orders in MIB.
Fig. 2 is that the present invention implements the flow chart for giving the method for losing IP for change based on snmp protocol.
A unused IP address is obtained on the computer of step 201:SNMP network management as virtual ip address, and it is virtual to verify this
IP address is to ensure that the virtual ip address is not used by the other equipment in network.It can by the PING order PING virtual IP address
Location, and at the same time executing ARP-a order, checks in arp cache table without the virtual ip address if do not returned, executes ARP-a
The reason of order, is to cause the PING IP address without return there is a possibility that be provided with firewall with the equipment of the IP address.
Step 202: on the electric energy of SNMP network management that the virtual ip address and the progress of the MAC Address of target management and control devices is quiet
State binding.It can be ordered by ARP-S, by the MAC Address static binding of the virtual ip address and target management and control devices, and be passed through
Arp-a order checks whether binding succeeds.
It is that the target management and control devices arrange port that step 203:SNMP network management, which changes the port SNMP, which is the target tube
It controls equipment and arranges port, write virtual IP address order for receiving.The target management and control devices also can receive SNMP life by the port
It enables, but is used for specific use (such as writing virtual IP address order), need to distinguish with conventional port 161.The reading-writing port of SNMP default
For 161 ports, if being changed to other agreement ports, which receives the data packet in bottom, can be solved
Analysis.
Step 204:SNMP network management executes SNMP to the virtual ip address and writes virtual IP address order, which receives
After the order, the data packet (specific analytic method is shown in Fig. 3) is parsed, to obtain virtual ip address.
Step 205: the IP address that the target manages equipment change oneself is the virtual ip address, and is come into force.In this way
The IP address of the target management and control devices is just changed to the virtual ip address.But not by the configuration information of the virtual ip address
It is saved in the nonvolatile memories such as FLASH, in this way when the target manages device reset or power-off, the target management and control devices
Former IP address can be restored to.The PING virtual ip address order is executed at this time, there should be return response, it was demonstrated that the target management and control devices
IP address be changed to the virtual ip address.
It is standard port (such as 161 ports) that step 206:SNMP network management, which changes the port SNMP, is held to the virtual ip address
Row SNMP reads original IP order.Since the target management and control devices have been changed to the virtual ip address, SNMP network management can change SNMP
Port is standard port, and by standard port the target management and control devices can be carried out with the normal read-write operation of SNMP, SNMP net
Pipe executes to the target management and control devices and reads original IP order, to obtain original IP address information of the target management and control devices.
Step 207: the target management and control devices receive the reading original IP order of SNMP network management transmission, execute SNMP response, return
It returns former IP address information and gives SNMP network management, so that SNMP network management has got the original setting of the target management and control devices really
Former IP address information has found the IP address information of target control device losses.
Step 208:SNMP network management sends the order of SNMP device reset to the virtual ip address, which receives
It to after the order, executes and resets operation, the setting of its IP address is reduced into former IP address, so that the target management and control devices are restored just
Normal state, hereafter SNMP network management can carry out the target management and control devices by the true former IP address of the target management and control devices
Normal SNMP access.
IP and MAC Address operation schematically are carried out using ARP order in above-mentioned process, those skilled in the art can be with
It samples other modes to realize, such as Netsh command mode or other network programming modes.
Fig. 3 writes virtual IP address order after equipment receives the order to virtual IP address execution SNMP for network management and parses the data packet
Flow chart.
Step 301:SNMP network management executes SNMP to virtual ip address and writes virtual IP address order, due to virtual ip address and the mesh
The MAC Address static binding of management and control devices is marked, therefore the link layer of the target management and control devices will receive the SNMP and write virtual IP address life
The data packet of order.
Step 302: the target management and control devices parse the data packet, judge that the IP of the destination IP in the data packet and oneself is
It is no consistent, if so, this is a normal SNMP packet, snmp protocol is parsed by normal process；If it is not, then continuing to sentence
Whether the port SNMP that the data packet of breaking uses is agreement port.
Step 303: if not agreement port, then it is assumed that the data packet is that illegal data packet directly abandons；If so,
Then continue to judge whether the data packet is the order for writing virtual IP address, is not that data packet directly abandons；This is then got if being
Virtual ip address information.
Step 304: for the target management and control devices according to the virtual ip address information of acquisition, it is virtual for changing the IP address of oneself
IP address comes into force.Hereafter since the target management and control devices have been changed to virtual ip address, SNMP network management can change SNMP
Port is standard port, can carry out the normal read-write operation of SNMP to equipment by virtual ip address.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (7)
1. a kind of method for giving target control device losses IP address for change based on snmp protocol, characterized by comprising:
Step 101, a virtual ip address is distributed on the computer of SNMP network management, and the virtual ip address and target control are set
Standby MAC Address static binding；
Step 102, SNMP network management sends SNMP to the virtual ip address and writes virtual IP address order, and target management and control devices can receive this
SNMP writes virtual IP address order, by parsing the data packet of the order, the virtual ip address information is therefrom obtained, thus according to the life
It enables and the IP address of the target management and control devices itself is changed to the virtual ip address, and come into force；
Step 103, SNMP network management sends SNMP to the virtual ip address and reads original IP order, which receives this
SNMP reads original IP order, returns to the former IP information of the target management and control devices as the SNMP reply data for reading original IP order
SNMP network management；
Step 104, SNMP network management sends the order of SNMP device reset to the virtual ip address, which receives this
SNMP device reset order executes and resets operation, the IP address configuration of the target management and control devices is reduced to former IP address, hereafter
SNMP network management can use original IP address to carry out normal SNMP operation to the target management and control devices；
The step 101, which may further comprise:, verifies the virtual ip address to ensure the virtual ip address not by its in network
He uses equipment, and, whether the static binding for verifying the MAC Address of the virtual ip address and target management and control devices succeeds.
2. the method according to claim 1 for giving target control device losses IP address for change based on snmp protocol, feature
Be: in the step 102, the target management and control devices are not by the virtual ip address information preservation configured to non-volatile memories
In device.
3. the method according to claim 1 for giving target control device losses IP address for change based on snmp protocol, feature
Be: in the step 102, SNMP network management sends SNMP to the virtual ip address using the agreement port of the target management and control devices
Read original IP order.
4. the method according to claim 1 for giving target control device losses IP address for change based on snmp protocol, feature
Be: the step 102 may further comprise: the IP address of the verification target management and control devices with whether being changed to the virtual IP address
Location.
5. the method according to claim 1 for giving target control device losses IP address for change based on snmp protocol, feature
Be: in the step 103, SNMP network management sends SNMP to the virtual ip address using SNMP standard port and reads original IP order；
In the step 104, SNMP network management sends the order of SNMP device reset to the virtual ip address using SNMP standard port.
6. the method according to claim 3 for giving target control device losses IP address for change based on snmp protocol, feature
Be: in the step 102, which receives the data packet that the SNMP writes virtual IP address order from link layer.
7. the method according to claim 6 for giving target control device losses IP address for change based on snmp protocol, feature
Be: the target management and control devices parse the data packet, judge whether the destination IP in the data packet is consistent with the IP of itself, if
It is then to parse snmp protocol by normal process as normal SNMP packet；If not the IP of itself, then continue to judge the number
Whether the port SNMP used according to packet is agreement port, if not agreement port, then it is assumed that the data packet is illegal data
Packet directly abandons；If being due up port, continue to judge whether the data packet is the order for writing virtual IP address, is not then data packet
Directly abandon；The virtual ip address information is then got if being；The target management and control devices are believed according to the virtual ip address of acquisition
Breath, the IP address for changing itself is the virtual ip address.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018214113A1 (en) * | 2017-05-25 | 2018-11-29 | 深圳市伊特利网络科技有限公司 | Method and system for applying virtual network addresses in network link |
| CN107071090A (en) * | 2017-05-25 | 2017-08-18 | 深圳市伊特利网络科技有限公司 | Application process and system of the virtual network address in the link of networking |
| CN107451491B (en) * | 2017-07-28 | 2020-03-10 | 杭州安恒信息技术股份有限公司 | Method for improving protocol analysis accuracy when database connection information is lost |
| CN108390833B (en) * | 2018-02-11 | 2020-02-07 | 北京邮电大学 | Software defined network forwarding control method based on virtual domain |
| CN113556409A (en) * | 2021-06-04 | 2021-10-26 | 深圳市高川自动化技术有限公司 | IP address retrieving method, system, terminal and storage medium |
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