CN113726738B - Method for acquiring physical location information of tested equipment, network equipment and storage medium - Google Patents
Method for acquiring physical location information of tested equipment, network equipment and storage medium Download PDFInfo
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- CN113726738B CN113726738B CN202110846913.5A CN202110846913A CN113726738B CN 113726738 B CN113726738 B CN 113726738B CN 202110846913 A CN202110846913 A CN 202110846913A CN 113726738 B CN113726738 B CN 113726738B
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000006243 chemical reaction Methods 0.000 claims abstract description 80
- 230000004044 response Effects 0.000 claims abstract description 41
- 238000012360 testing method Methods 0.000 claims description 31
- 230000006870 function Effects 0.000 claims description 20
- 238000004590 computer program Methods 0.000 claims description 13
- 230000003993 interaction Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 7
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012956 testing procedure Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Classifications
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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
- H04L61/5014—Internet protocol [IP] addresses using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
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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
- H04L61/09—Mapping addresses
- H04L61/25—Mapping addresses of the same type
- H04L61/2503—Translation of Internet protocol [IP] addresses
- H04L61/2517—Translation of Internet protocol [IP] addresses using port numbers
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2101/00—Indexing scheme associated with group H04L61/00
- H04L2101/60—Types of network addresses
- H04L2101/69—Types of network addresses using geographic information, e.g. room number
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The application provides a method for acquiring physical position information of a tested device, which comprises the steps of acquiring a DHCP request message of a port field of network conversion equipment carried by the network conversion equipment, wherein the network conversion equipment is connected with the tested device through the port of the network conversion equipment; analyzing the DHCP request message to obtain port information of the network conversion equipment; adding the acquired port information of the network conversion equipment into a physical location field of a DHCP response IP allocation message, wherein the DHCP response IP allocation message responds to a DHCP request message sent by the tested equipment, and the DHCP request message carries the physical location field; and sending the DHCP response IP allocation message to the network conversion equipment so that the network conversion equipment returns the DHCP response IP allocation message to the tested equipment. According to the embodiment of the application, the tested equipment acquires the physical position information while acquiring the IP, and the DHCP message is adopted for acquisition, so that the interface and remote interaction are reduced, and the real-time performance is good.
Description
Technical Field
The present application relates to the field of communications devices, and in particular, to a method for obtaining physical location information of a device under test, a network device, and a storage medium.
Background
In a production test network, the device under test generally needs to acquire the current test station to further acquire the test parameters and standards related to the station. The same tested equipment has different testing procedures and testing standards on different testing stations, for example, the tested equipment belongs to a positive mass production testing procedure I at a station A and belongs to a verification testing procedure II at a station B. There is therefore a need for a method of device physical location management and querying within a network.
According to the knowledge of the inventor, under the condition of being based on a DHCP protocol, a DHCP interaction message in a network is monitored, position positioning is carried out by adding position information in the DHCP message, a binding relation between an IP and a physical port position in the interaction message is analyzed by a service in a DHCP server, and a tested device below calls the service in a remote login mode or an API interface mode, so that the binding relation is finally obtained. The binding relation between the IP and the physical port is stored in the DHCP server, the tested equipment can be obtained by remote login or calling interface mode, and the binding relation in the message is analyzed at fixed time by the end service of the DHCP server, so that a certain real-time problem exists.
Disclosure of Invention
In order to overcome the problems in the related art, the application provides a method for acquiring physical location information of a tested device, network equipment and a storage medium.
According to a first aspect of an embodiment of the present application there is provided a method of obtaining physical location information of a device under test,
acquiring a DHCP request message of a port field of network conversion equipment carried by the network conversion equipment, wherein the network conversion equipment is connected with tested equipment through the port of the network conversion equipment;
analyzing the DHCP request message to obtain port information of the network conversion equipment;
adding the acquired port information of the network conversion equipment into a physical location field of a DHCP response IP allocation message, wherein the DHCP response IP allocation message responds to a DHCP request message sent by the tested equipment, and the DHCP request message carries the physical location field;
and sending the DHCP response IP allocation message to the network conversion equipment so that the network conversion equipment returns the DHCP response IP allocation message to the tested equipment.
Preferably, the network conversion equipment is configured with a DHCP Snooping function module, and when the network conversion equipment receives a DHCP request message sent by the tested equipment, the network conversion equipment starts the DHCP Snooping function module.
Preferably, all devices under test are set to DHCP auto-acquire IP mode.
The second aspect provides a method for obtaining physical location information of a tested device, which is applied to network conversion equipment, and obtains a DHCP request message sent by the tested device, wherein the DHCP request message carries a physical location field; the DHCP request message carries a port field of the network conversion equipment; sending the DHCP request message to a DHCP server through a corresponding network conversion equipment port according to the carried network conversion equipment port field;
receiving a DHCP response IP allocation message sent by a DHCP server, wherein the DHCP response IP allocation message responds to a DHCP request message of the tested equipment, and the DHCP response IP allocation message carries a physical location field, and network conversion equipment port information is added in the physical location field;
and sending a DHCP response IP allocation message to the tested device, wherein the DHCP response IP allocation message comprises a physical location field, and the physical location field is added with port information of the network conversion device.
Preferably, the network conversion equipment is configured with a DHCP Snooping function module, and when the network conversion equipment receives a DHCP request message sent by the tested equipment, the network conversion equipment starts the DHCP Snooping function module.
Preferably, the device under test is connected to the network switching device through a network switching device port.
Preferably, all devices under test are set to DHCP auto-acquire IP mode.
A third aspect provides a network device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the method of obtaining physical location information of a device under test as described above.
A fourth aspect provides a storage medium having stored thereon computer program instructions which, when executed by a processor, are adapted to carry out the above-described method of obtaining physical location information of a device under test.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
according to the embodiment of the application, the tested equipment acquires the physical position information while acquiring the IP, and the DHCP message is adopted for acquisition, so that the interface and remote interaction are reduced, and the real-time performance is good.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments consistent with the application and together with the application, serve to explain the principles of the application.
FIG. 1 is an interactive flow chart of an embodiment of the present application;
FIG. 2 is a flow chart of an embodiment of the present application;
FIG. 3 is a flow chart of an embodiment of the present application;
fig. 4 is a hardware block diagram of the network device of the present application.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.
The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to any or all possible combinations including one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used in embodiments of the present application to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the application. Depending on the context, furthermore, the word "if" used may be interpreted as "at … …" or "at … …" or "in response to a determination".
The application provides a method for acquiring physical position information of tested equipment, which is applied to a networking system consisting of the tested equipment, network conversion equipment and a DHCP server, wherein the tested equipment is connected with a port of the network conversion equipment. As shown in fig. 1, a first embodiment of the method includes:
0001: and the tested equipment initiates a DHCP request message, wherein the DHCP request message carries a physical location field.
After networking connection is good, firstly, setting the IP acquisition mode of all devices in the network, particularly the tested device, as a DHCP automatic acquisition IP mode.
The format of the DHCP message in the embodiment of the present application is shown in table 1:
| op | yiaddr | giaddr | Option(62) |
| 1 | 0 | 192.168.0.1 | port number: |
TABLE 1
op: the type of operation of the message. The value is 1: request message; the value is 2: responding to the message.
yiaddr: the DHCP server assigns an IP address to the client. Only in the offer and ACK messages sent by the DHCP server, the other messages are shown as 0.
giaddr: the forwarding proxy (gateway) IP address is the IP address of the first DHCP relay after the client sends the request message, and if the DHCP relay is not passed, it is 0.
The option is as follows: selectable options.
The actual length of the DHCP message format is greater than that shown in table 1, and the message format that is not relevant to the present application is not shown in table 1.
0003: the network switching device forwards the DHCP request message to the DHCP server, which carries the network switching device port field.
After the DHCP request message is added into the message after being packaged, the DHCP request message is added with a network equipment conversion port field as an extension field.
The DHCP request message format adds a header and an extension field on the basis of table 1.
The port number of the port to which the device under test and the network conversion device are connected, for example, port 1 (port 1), is added in the extension field portion.
0005: the DHCP server acquires the DHCP request message and analyzes the port information of the network conversion equipment in the forwarding request message.
The DPCH service splits the DHCP request message, analyzes the port information of the network conversion equipment and acquires the DHCP request message therein.
The corresponding network conversion device port obtained, for example, as 192.168.1.0.1 is port 1 (port 1).
0007: and the DHCP server responds to the DHCP request message and adds the acquired port information of the network conversion equipment to a response IP allocation message corresponding to the request message.
The DHCP response IP allocation message is a response message of the DHCP request message, the DHCP server puts the allocated IP into the DHCP response IP allocation message, and adds the acquired corresponding port information of the network conversion equipment into a physical position field of the response IP allocation message.
The DHCP response IP assignment message is shown in table 2.
| op | yiaddr | giaddr | Option(62) |
| 2 | 192.168.0.10 | 192.168.0.1 | port number：port 1 |
TABLE 2
0009: the DHCP server sends a DHCP response IP allocation message to the network conversion equipment.
0011: the network conversion equipment packages the DHCP response IP allocation message and then sends the DHCP response IP allocation message to the tested equipment.
0013: the tested device analyzes and acquires the distributed IP and physical position information.
For example:
| device under test | IP | Physical location |
| 1 | 192.168.0.10 | port1 |
On the basis of the first embodiment, in order to avoid that the illegal DHCP server affects the IP acquisition, a DHCP Snooping functional module may be configured on the network conversion device. The access of the illegal DHCP server is effectively filtered, and the physical location can acquire the whole process of accessing to the tested equipment, namely, the process starts from acquiring the IP of the tested equipment. After the network conversion equipment receives the DHCP request message, the DHCP Snooping functional module is started in response to the request message. The network switching device here may be a switch by way of example.
Here, it is necessary to explain DHCP Snooping, a security feature function of DHCP, which is to shield an illegal DHCP server in an access network. I.e. after starting the DHCP Snooping function, the client in the network only obtains the IP address from the DHCP server specified by the administrator. Because the DHCP messages lack an authentication mechanism, if an illegal DHCP server exists in the network, an administrator cannot ensure that the client obtains a legal address from the DHCP server specified by the administrator, and the client may obtain configuration information such as an incorrect IP address from the illegal DHCP server, so that the client cannot normally use the network. After the DHCP Snooping function is started, the port on the switch must be set to be in a trusted (Trust) state and an untrusted (un-Trust) state, and the switch only forwards the DHCP OFFER/ACK/NAK message of the trusted port, thereby achieving the purpose of blocking an illegal DHCP server. It is often recommended that ports connected to DHCP servers be set as trusted ports and other ports as untrusted ports.
The second embodiment of the application provides a method for acquiring physical location information of a device under test, as shown in fig. 2, which is applied to a DHCP server and includes:
acquiring a DHCP request message of a port field of network conversion equipment carried by the network conversion equipment, wherein the network conversion equipment is connected with tested equipment through the port of the network conversion equipment;
analyzing the DHCP request message to obtain port information of the network conversion equipment;
adding the acquired port information of the network conversion equipment into a physical location field of a DHCP response IP allocation message, wherein the DHCP response IP allocation message responds to a DHCP request message sent by the tested equipment, and the DHCP request message carries the physical location field;
and sending the DHCP response IP allocation message to the network conversion equipment.
As a preferred embodiment, the network conversion device is configured with a DHCP Snooping function module, and when the network conversion device receives a DHCP request message sent by the tested device, the network conversion device starts the DHCP Snooping function module.
The tested device is connected to the network conversion device through the port of the network conversion device.
As a preferred embodiment, all devices under test are set to DHCP auto-acquire IP mode.
The third embodiment of the application provides a method for acquiring physical location information of a device under test, as shown in fig. 3, applied to a network conversion device, including:
acquiring a DHCP request message sent by tested equipment, wherein the DHCP request message carries a physical location field;
sending a DHCP request message to a DHCP server, wherein the DHCP request message carries a port field of the network conversion equipment;
receiving a DHCP response IP allocation message sent by a DHCP server, wherein the DHCP response IP allocation message responds to a DHCP request message of the tested equipment, and the DHCP response IP allocation message carries a physical location field, and network conversion equipment port information is added in the physical location field;
and sending a DHCP response IP allocation message to the tested device, wherein the DHCP response IP allocation message comprises a physical location field, and the physical location field is added with port information of the network conversion device.
As a preferred embodiment, the network conversion device is configured with a DHCP Snooping function module, and when the network conversion device receives a DHCP request message sent by the tested device, the network conversion device starts the DHCP Snooping function module.
The tested device is connected to the network conversion device through the port of the network conversion device.
As a preferred embodiment, all devices under test are set to DHCP auto-acquire IP mode.
The application also provides a network device, comprising a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the method for acquiring the physical location information of the tested device according to the above embodiment when executing the program, as shown in fig. 4.
The application also provides a storage medium having stored thereon computer program instructions which, when executed by a processor, perform the method of obtaining physical location information of a device under test of the above embodiments.
Wherein the machine-readable storage medium may be any electronic, magnetic, optical, or other physical storage device that can contain or store information, such as executable instructions, data, or the like. For example, a machine-readable storage medium may be: RAM (Radom Access Memory, random access memory), volatile memory, non-volatile memory, flash memory, a storage drive (e.g., hard drive), a solid state drive, any type of storage disk (e.g., optical disk, dvd, etc.), or a similar storage medium, or a combination thereof.
The system, apparatus, module or unit set forth in the above embodiments may be implemented in particular by a computer chip or entity, or by a product having a certain function. A typical implementation device is a computer, which may be in the form of a personal computer, laptop computer, cellular telephone, camera phone, smart phone, personal digital assistant, media player, navigation device, email device, game console, tablet computer, wearable device, or a combination of any of these devices.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the application may take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Moreover, these computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.
It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the application.
Claims (9)
1. The method for acquiring the physical position information of the tested equipment is applied to a DHCP server and is characterized by acquiring a DHCP request message of a port field of network conversion equipment carried by the network conversion equipment, wherein the network conversion equipment is connected with the tested equipment through the port of the network conversion equipment;
analyzing the DHCP request message to obtain the port information of the network conversion equipment;
adding the acquired port information of the network conversion equipment into a physical location field of a DHCP response IP allocation message, wherein the DHCP response IP allocation message responds to a DHCP request message sent by tested equipment, and the DHCP request message carries the physical location field;
and sending the DHCP response IP allocation message to the network conversion equipment so that the network conversion equipment returns the DHCP response IP allocation message to the tested equipment.
2. The method for obtaining physical location information of a device under test according to claim 1, wherein a DHCP Snooping function module is configured on the network conversion device, and the network conversion device starts the DHCP Snooping function module when receiving a DHCP request message sent by the device under test.
3. The method for acquiring physical location information of a device under test according to claim 1, wherein all devices under test are set to DHCP auto-acquire IP mode.
4. The method for acquiring the physical position information of the tested equipment is applied to the network conversion equipment and is characterized by acquiring a DHCP request message sent by the tested equipment, wherein the DHCP request message carries a physical position field; the DHCP request message carries a port field of the network conversion equipment;
sending the DHCP request message to a DHCP server through a corresponding network conversion equipment port according to the carried network conversion equipment port field;
receiving a DHCP response IP allocation message sent by the DHCP server, wherein the DHCP response IP allocation message responds to the DHCP request message of the tested equipment, the DHCP response IP allocation message carries the physical location field, and the physical location field is added with port information of the network conversion equipment;
and sending a DHCP response IP allocation message to the tested equipment, wherein the DHCP response IP allocation message comprises the physical location field, and the port information of the network conversion equipment is added in the physical location field.
5. The method for obtaining physical location information of a device under test according to claim 4, wherein a DHCP Snooping function module is configured on the network conversion device, and the network conversion device starts the DHCP Snooping function module when receiving a DHCP request message sent by the device under test.
6. The method of claim 4, wherein the device under test is connected to the network switching device through the network switching device port.
7. The method for acquiring physical location information of a device under test according to claim 4, wherein all devices under test are set to DHCP auto-acquire IP mode.
8. Network device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor executes the method of acquiring physical location information of a device under test according to any of claims 1-3 when executing the program.
9. A storage medium having stored thereon computer program instructions, which when executed by a processor are adapted to carry out the method of obtaining physical location information of a device under test as claimed in any of claims 1-3.
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