CN106027691A - Checking and correcting method for network card MAC (Media Access Control) address - Google Patents
Checking and correcting method for network card MAC (Media Access Control) address Download PDFInfo
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- CN106027691A CN106027691A CN201610319018.7A CN201610319018A CN106027691A CN 106027691 A CN106027691 A CN 106027691A CN 201610319018 A CN201610319018 A CN 201610319018A CN 106027691 A CN106027691 A CN 106027691A
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- mac address
- network card
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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
- H04L61/5046—Resolving address allocation conflicts; Testing of addresses
-
- 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
- H04L2101/618—Details of network addresses
- H04L2101/622—Layer-2 addresses, e.g. medium access control [MAC] addresses
Abstract
The invention relates to the field of computer motherboards, in particular to a checking and correcting method for a network card MAC (Media Access Control) address. Specific to pre-burning checking and prevention in a conventional checking method for the network card MAC address, a post-burning checking scheme for the MAC address is put forward in the method disclosed by the invention. According to the post-burning checking scheme, pre-burning checking and post-burning checking can be performed; a pre-burning checking method can be replaced; and a checking function is provided. Corrections can be performed at a certain degree, so that errors of MAC address fields of a manufacturer can be prevented, and the legal risk is avoided. The method is implemented and finished by ways of reading the MAC address firstly in a BIOS (Basic Input Output System), checking and correcting MAC address data secondly, and writing back the MAC address. When an exception MAC address exists, the exception MAC address is corrected according to the principle that the MAC address is a group of arithmetic progression data on the same motherboard. The method is implemented in the BIOS and a BMC (Baseboard Management Controller), and finished automatically on each motherboard without being limited by the level of technical personnel or a scene. A BMC management interface can warn a user to perform checking and confirmation, so that the deficiencies of a correcting function are made up.
Description
Technical field
The present invention relates to computer motherboard field, particularly relate to the inspection modification method of a kind of MAC Address of Network Card.
Background technology
On server master board, network interface is one of requisite interface of mainboard, and on mainboard, the quantity of network interface is according to design need
Depending on asking, two at least, more than eight at most, the corresponding network card equipment of each network interface, corresponding one of each network card equipment
MAC Address, MAC Address is uniquely, cannot repeat, and there is the MAC Address section of correspondence each instrument factory commercial city, and product can only
Use the MAC Address in oneself address field, prevent from conflicting with other equipment vendors' product MAC Address.At present MAC Address be all
After mainboard produces, burning is entered one by one, in order to prevent MAC from repeating or mistake, and hand inspection to be carried out, or use script to enter
Row checks.
Current mistake proofing mode, mainly to put prevention first, uses scanner to be scanned defeated to MAC Address serial number
Enter, more whether have the MAC Address of repetition to prepare burning entrance mainboard on same mainboard by program checkout.At normal flowing water
In the case of line produces mainboard, such inspection can prevent MAC burning mistake substantially, however it is necessary that increase checks program development people
Member.Additionally if maintenance mainboard needs again artificial burn recording MAC address, or terminal use has again burn recording MAC address
Demand, this preventive inspection is the most inoperative, but these links are also the links being easier to occur MAC mistake.One
Denier MAC Address has the conflict of repetition in the machine, when using under system, shows as network performance and stability has declined, but
May not have the mechanism that significantly reports an error, so this mistake is easily left in the basket, be difficult to find.If manufacturer's MAC Address section is defeated
Entering mistake, misused the address field of other manufacturers, even if not having MAC to conflict, but there is the law wind invading other company properties
Danger.
Summary of the invention
It is an object of the invention to provide the inspection modification method of a kind of MAC Address of Network Card, it is intended to solve existing MAC Address
Burning mechanism cannot detect mainboard roll off the production line after the problem that changes of MAC Address.
The present invention is achieved in that the inspection modification method of a kind of MAC Address of Network Card, comprises the following steps,
A. initialization step: start mainboard BIOS and open memory source and I/O resource, and number is set in described memory source
According to working area；This working area is in program process, the region of memory that software system distributes temporarily, stores number for temporarily
According to, program finishes execution, region of memory will be released, and uses to other programs.
B. read step: BIOS reads in network card equipment memory mapping area MAC Address data and is deposited into described data
Working area；
C. step is contrasted: carry out contrasting and according to need with data in nonvolatile storage by the data in described data working area
It is modified, revised data are stored in described working area；
D. overwriting steps: revised data recording is entered in described network card equipment memory mapping area and described non-volatile deposit
Storage area.
E: markers step: if the MAC Address of network card equipment there occurs change, then generate flag data, and by revised
Data and flag data send jointly to BMC；
F. step display: described network card equipment mac address information is shown at BMC administration interface by described BMC program.
What deserves to be explained is that here D step and F step are not required to carry out in strict accordance with this order, it is also possible to first carry out
D step is carried out again after F step.
Wherein BIOS refers to (Basic Input Output System) basic input output system, is mainly used in calculating
The initialization of various hardware devices and detection in machine start process.
BMC refers to baseboard management controller (Baseboard Management Controller).Typically it is built in mainboard
On, support the IPMI specification of industry standard.The function that BMC provides includes: local and remote diagnosis, control station support, configuration
Management, hardware management and failture evacuation.
MAC Address refers to (Media Access Control) media access control address, hardware address, is used for defining net
The position of network equipment.
IO is the abbreviation of Input/Output, i.e. input/output port.
Generally, on mainboard, multiple MAC Address are all continuous dispensing.If burning is more than one on mainboard
MAC Address, the MAC Address of non-burning can be carried out checking correction according to the MAC Address value section of burning by software, if main
On plate, all MAC Address all do not have burning, and software not can determine that the MAC Address section that mainboard is allocated, just cannot correctly revise, only
One group of default value can be given, it can be worked, but this class value is likely to conflict with other host MAC address on network.Institute
It is that mainboard multiple network interface MAC Address has had been at a MAC Address burning and completed with the precondition that this method is run.
The further technical scheme of the present invention is: described step B include following step by step:
B1: read the MAC Address data of single network card equipment memory mapping area；
B2: would indicate that the data segment of manufacturer, compares with the manufacturer data section of preset in advance, it is judged that the MAC ground of network card equipment
Location manufacturer data section is the most identical with default, if it is different, it to be replaced to correct manufacturer data section, if identical, by this
MAC Address data are stored in data working area；
B3: repeat B1, B2 step until the MAC Address data of all network card equipments are stored in data working area.
The further technical scheme of the present invention is: described step C include following step by step:
C1: by MAC Address data in data working area be stored in advance in nonvolatile storage in MAC Address data compare
Relatively；If data are identical, do not operate；If data are different, then enter step C2；Data identical explanation MAC Address of Network Card does not has
Change, it is not necessary to operate.When BIOS for the first time reads MAC data, now there is a MAC Address in working area, non-easily
The property lost storage area data is empty, and the result of contrast is then for differing, then according to the job step operation differed.
C2: check whether have repetition between the data in data working area, without repetition, then data are the most temporary
Deposit the MAC Address in district and cover MAC Address data in described nonvolatile storage；If there being repetition；Then enter step C3；Network interface card
But MAC Address data do not have repeat specification MAC Address of Network Card to have renewal do not change, it may be possible to add new network interface card
Equipment, MAC Address is stored in nonvolatile storage by us.MAC Address of Network Card data duplicate, and have two kinds of situations, and first
Kind of situation is that burning repeats, the same MAC Address by two or more network interface card burnings, needs to revise；The second situation is
The non-burn recording MAC address of multiple network interface cards, the MAC Address district of network interface card is invalid data 0x00 or 0xFF.
C3: counterweight complex data carries out Effective judgement, if repeating data void in whole, then sets network interface card according to default value
Standby MAC value is configured, and then setting is stored in data working area；If repeating data is valid data, then enter step C4；
General invalid data is entirely 0x00 or 0xFF, is entirely invalid if repeating data, and this explanation mainboard does not has burning
MAC Address, can arrange one group of default value.
C4: according to the principle of arithmetic progression, data are modified, then data are stored in working area.MAC Address has
There are the feature of uniqueness and finiteness, general distribution principle, are all to increase one by one to go distribution.Such as xxx1, xxx2, xxx3,
Xxx4, xxx5 ..., the difference between these adjacent datas is fixed value 1, and 2 deduct 1 deducts 2 equal to 1 equal to 1,3, here it is
Arithmetic progression.The MAC Address of burning mistake is the fewest, revises correct probability the biggest, this is because generally, many on mainboard
Individual MAC Address is all continuous dispensing.Such as, 4 MAC Address xxx1, xxx2, xxx3, xxx4.Software can according to xxx1,
Xxx2, xxx4 accurately infer that last MAC is xxx3, and using it as correction value.Software can push away according to xxx2, xxx3
Two MAC Address of disconnected residue are xxx0, xxx1 or xxx4, xxx5 or xxx1, xxx4, then ardware feature is converted into software
Algorithm, can probabilistic localization be that xxx1, xxx4 are as correction value greatly.Iff knowing a correct MAC Address, then go to infer
Every other MAC, error probability will become big.
The further technical scheme of the present invention is: described step F include following step by step:
The order that BIOS is passed over by F1:BMC is polled；
F2: judge whether MAC Address of Network Card order after receiving the order that BIOS passes over, if YES then enter step F3；
F3: all mac address informations are shown one by one at BMC administration interface.
The further technical scheme of the present invention is: the flag data passed over according to BIOS in step F is to each MAC ground
Location information makes different conditions labelling.
The further technical scheme of the present invention is: in step F, mac address information data are occurred by BMC display management interface
That changes makes Special display.
The further technical scheme of the present invention is: described nonvolatile storage medium is EEPROM.
The invention has the beneficial effects as follows: the traditional method for MAC Address of Network Card inspection is puted prevention first to check before burning,
Check scheme after method proposes MAC Address burning, duplication check can be carried out before burning, it is also possible to before replacing burning
Inspection method, not only has audit function, moreover it is possible to carry out a certain degree of correction, can prevent manufacturer's MAC Address core dumped, evade
Legal risk.This method, by first reading MAC Address at BIOS, reexamines correction MAC Address data, then write-back MAC Address,
Such thinking has realized, and when there being abnormal MAC Address, is the difference such as a group according to MAC Address on same mainboard
The principle of column data has been revised.The method realizes in BIOS and BMC, on each piece of mainboard, not by technical staff's water
Gentle scene limits, and is automatically performed.BMC administration interface, shows MAC Address state, and can warn to user, allow user carry out core
Real confirmation, makes up the deficiency of debugging functions.
Accompanying drawing explanation
Fig. 1 is the inspection modification method operating process in the BIOS stage of the MAC Address of Network Card that the embodiment of the present invention provides.
Fig. 2 is the inspection modification method operating process in the BMC stage of the MAC Address of Network Card that the embodiment of the present invention provides.
Detailed description of the invention
Embodiment one is as shown in Figure 1, 2.Fig. 1 is the inspection modification method of the MAC Address of Network Card that the embodiment of the present invention provides
Operating process in the BIOS stage.As shown in the figure: after BIOS starts, all network card equipments are carried out Initialize installation, distribution
Resource, emphasis checks memory source and the distribution of I/O resource, and opens memory source and I/O resource, and this is network card equipment operation
Precondition.
When starting to check, first pre-setting manufacturer's MAC Address section, in case being used behind, then starting to read one by one often
The MAC Address data of individual network card equipment memory mapping area, would indicate that the data segment of manufacturer, compare with default manufacturer data section
Relatively, it is judged that whether this MAC Address manufacturer data section belongs to our company's scope, if it is not, it to be replaced to correct manufacturer
Data segment, if it is, these MAC Address data are stored in data working area, then checks next network interface card, until all network interface cards are all
Having checked, the MAC Address of the most all network interface cards all stores in data working area.
Then the data in data working area are compared by we with the MAC Address of nonvolatile storage, if identical,
Illustrating that MAC does not change, end operation, if it is not the same, start to process the data in working area.First check for working area
Data between whether have repetition, without repetition, then illustrating that MAC Address of Network Card has renewal, MAC Address is stored in by we
Nonvolatile storage, arranges labelling, notifies BMC process, and end operation, if there being repetition data to occur, then will judge weight
Whether complex data is valid data, and general invalid data is entirely 0x00 or 0xFF, if repeating data is valid data, I
According to the principle of arithmetic progression, data are modified, therefore wrong data is the fewest, and it is the most accurate to revise, and then data is deposited
Enter working area；If it is invalid that repetition data are entirely, this explanation mainboard does not has burn recording MAC address, and we can arrange one
Group default value, if repeating data is partial invalidity, those just can be according to the MAC Address data of burning, according to equal difference
The rule of ordered series of numbers, is modified, and then data is stored in working area.More than in operation, the operation to MAC data, all should set
Put flag data, conveniently pass to BMC and judge.
After completing data check correction, working area data are write MAC Address memory mapping area, then software design patterns one by one
Depositor is opened EEPROM and is write authority, is updated in the middle of EEPROM by MAC Address, then is stored in by the MAC Address in working area
Nonvolatile storage, in case using when start next time, then by the MAC Address data in working area and modified logo data,
Pass to BMC, notice BMC and do respective handling.
Fig. 2 is the inspection modification method operating process in the BMC stage of the MAC Address of Network Card that the embodiment of the present invention provides.
The order that BIOS is passed over by BMC is polled, and receives, if had, the order that BIOS passes over, then judges whether it is net
Card MAC Address order, stores each MAC information if it is, start to collect, is then shown one by one by all mac address informations
At BMC administration interface, the mac address information mark passed over according to BIOS, each mac address information is made status indication,
Be divided into normal, update and revise three kinds of states, update for having and revise status indication, special eye-catching labelling will be made, showing
Show to user, facilitate user to examine the correctness of MAC Address.
This programme puts prevention first to check before burning for the traditional method of MAC Address of Network Card inspection, method proposes
Check scheme after MAC Address burning, duplication check can be carried out before burning, it is also possible to replace the inspection method before burning, no
But have audit function, moreover it is possible to carry out a certain degree of correction, manufacturer's MAC Address core dumped, risk in fraud of law can be prevented.This
Method, by first reading MAC Address at BIOS, reexamines correction MAC Address data, then write-back MAC Address, such thinking
Realize, when there being abnormal MAC Address, be the former of one group of arithmetic progression data on same mainboard according to MAC Address
Then revise.The method realizes in BIOS and BMC, on each piece of mainboard, is not limited by technical staff's level and scene
System, is automatically performed.BMC administration interface, shows MAC Address state, and can warn to user, allow user verify and confirm, more
Study for a second time courses one has flunked the deficiency of orthofunction.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (8)
1. the inspection modification method of a MAC Address of Network Card, it is characterised in that: comprise the following steps,
A. initialization step: start mainboard BIOS and open memory source and I/O resource, and number is set in described memory source
According to working area；
B. read step: BIOS reads in network card equipment memory mapping area MAC Address data and is deposited into described data and keeps in
District；
C. step is contrasted: carry out contrasting and according to need with data in nonvolatile storage by the data in described data working area
It is modified, revised data are stored in described working area；
D. overwriting steps: revised data recording is entered in described network card equipment memory mapping area and described non-volatile deposit
Storage area.
The inspection modification method of MAC Address of Network Card the most according to claim 1, it is characterised in that: also include
Step E: markers step: if the MAC Address of network card equipment there occurs change, then generate flag data, and by revised
Data and flag data send jointly to BMC；
F. step display: described network card equipment mac address information is shown at BMC administration interface by described BMC program.
The inspection modification method of MAC Address of Network Card the most according to claim 1, it is characterised in that: described step B include with
Under step by step:
B1: read the MAC Address data of single network card equipment memory mapping area；
B2: would indicate that the data segment of manufacturer, compares with the manufacturer data section of preset in advance, it is judged that the MAC ground of network card equipment
Location manufacturer data section is the most identical with default, if it is different, it to be replaced to correct manufacturer data section, if identical, by this
MAC Address data are stored in data working area；
B3: repeat B1, B2 step until the MAC Address data of all network card equipments are stored in data working area.
The inspection modification method of MAC Address of Network Card the most according to claim 1, it is characterised in that: described step C include with
Under step by step:
C1: by MAC Address data in data working area be stored in advance in nonvolatile storage in MAC Address data compare
Relatively；If data are identical, do not operate；If data are different, then enter step C2；
C2: check whether have repetition between the data in data working area, without repetition, then directly by data working area
Interior MAC Address covers MAC Address data in described nonvolatile storage；If there being repetition；Then enter step C3；
C3: counterweight complex data carries out Effective judgement, if repeating data void in whole, then according to default value to network card equipment MAC
Value is configured, and then setting is stored in data working area；If repeating data is valid data, then enter step C4；
C4: according to the principle of arithmetic progression, data are modified, then data are stored in working area.
The inspection modification method of MAC Address of Network Card the most according to claim 2, it is characterised in that: described step F include with
Under step by step:
The order that BIOS is passed over by F1:BMC is polled；
F2: judge whether MAC Address of Network Card order after receiving the order that BIOS passes over, if YES then enter step F3；
F3: all mac address informations are shown one by one at BMC administration interface.
The inspection modification method of MAC Address of Network Card the most according to claim 2, it is characterised in that: according to BIOS in step F
Each mac address information is made different conditions labelling by the flag data passed over.
The inspection modification method of MAC Address of Network Card the most according to claim 2, it is characterised in that: in step F, BMC shows
Mac address information data are occurred change to make Special display by administration interface.
The inspection modification method of MAC Address of Network Card the most according to claim 1, it is characterised in that: described step C and step
In D, nonvolatile storage medium is EEPROM.
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| CN201610319018.7A CN106027691B (en) | 2016-05-13 | 2016-05-13 | A kind of inspection modification method of MAC Address of Network Card |
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| CN107364140A (en) * | 2017-08-03 | 2017-11-21 | 深圳市七号科技有限公司 | For more 3D printer initial parameter configurations and the method and system of Function detection |
| CN107621938A (en) * | 2017-09-13 | 2018-01-23 | 郑州云海信息技术有限公司 | A kind of PHY network adapter upgrade method and system |
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| CN108965062A (en) * | 2018-08-07 | 2018-12-07 | 郑州云海信息技术有限公司 | A kind of network interface test method, device, equipment and the storage medium of Onboard NIC |
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| CN111027104A (en) * | 2019-11-26 | 2020-04-17 | 深圳中电长城信息安全系统有限公司 | Method, device and mainboard for preventing loss of network card identification data |
| CN111464377A (en) * | 2020-03-12 | 2020-07-28 | 苏州浪潮智能科技有限公司 | Network card inspection method, device, equipment and storage medium |
| CN112003766B (en) * | 2020-08-13 | 2022-04-26 | 苏州浪潮智能科技有限公司 | Network card MAC repeated test exception handling method and device |
| CN112003766A (en) * | 2020-08-13 | 2020-11-27 | 苏州浪潮智能科技有限公司 | Network card MAC repeated test exception handling method and device |
| CN114338485A (en) * | 2020-09-28 | 2022-04-12 | 神讯电脑(昆山)有限公司 | Network card serial number checking system and method |
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| CN113162828B (en) * | 2021-05-19 | 2023-04-07 | 中国工商银行股份有限公司 | Method and device for detecting information abnormity of network equipment manufacturer |
| CN113778471A (en) * | 2021-09-10 | 2021-12-10 | 昆山丘钛微电子科技股份有限公司 | Camera module burning method and device and readable storage medium |
| CN115314471A (en) * | 2022-08-08 | 2022-11-08 | 福州创实讯联信息技术有限公司 | MAC address allocation method and terminal |
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