CN104780078A - Method and system for initiatively detecting IP (Internet protocol) of switch - Google Patents
Method and system for initiatively detecting IP (Internet protocol) of switch Download PDFInfo
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- CN104780078A CN104780078A CN201510156312.6A CN201510156312A CN104780078A CN 104780078 A CN104780078 A CN 104780078A CN 201510156312 A CN201510156312 A CN 201510156312A CN 104780078 A CN104780078 A CN 104780078A
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Abstract
The invention discloses a method and a system for initiatively detecting IP (Internet protocol) of a switch. The method comprises steps as follows: a local server and a remote switch are connected, the server acquires information of each VLAN (virtual local area network) on the switch by the aid of an SNMP (simple network management protocol), the VLAN information comprises ip addresses used by each vlan and subnet mask information used by the vlan; the ip addresses and the subnet mask information are kept alive, and a network segment of each VLAN is calculated by the aid of the ip addresses and the subnet mask information; the switch is logged in by the aid of a TELNET protocol, a ping request for each VLAN network segment is sent to the switch, the switch initiatively detects all the ip addresses of a local port according to the Ping request and updates arp cache on the switch; the server sends an acquisition request to the switch and acquires ip and mac information connected to each port in arp cache on the switch. With adoption of the scheme, the complex network environment for a customer can be better adapted, and information is more efficiently and stably acquired.
Description
Technical field
The invention belongs to computer realm, particularly the method and system of a kind of switch active probe IP.
Background technology
In current access product, snmp protocol can be used to obtain the information of ip and mac on switch ports themselves, thus the physical connection positions of legal and illegal ip can be located accurately.
The mac information of current SWITCH port connection can be obtained by the .iso.org.dod.internet.mgmt.mib-2.dot1dBridge.dot1dTp.dot 1dTpFdbTable.dot1d TpFdbEntry.dot1dTpFdbPort in BRIDGE-MIB.txt, the corresponding relation of ip and mac of part can be got by .iso.org.dod.internet.mgmt.mib-2.at.atTable.atEntry.atPh ysAddress, also have other MIB that same effect can be had to obtain above information, this is only citing.
The mac information obtaining switch ports themselves corresponding by SNMP is complete, but only can get part, the arp information that namely switch buffer memory is good when obtaining mac and ip corresponding relation.So product can affix one's name to a detector in network internal, for the corresponding relation of ip and mac in detection network, by ICMP agreement, ip and the mac corresponding relation in network can be got very easily, the ip information of the switch ports themselves obtained before then just upgrading.
Although existing technology can reach the function of the topology information obtained in network, also there is limitation.When the network environment more complicated of client time, such as, across vlan etc., now just need the extra client of deployment or detector to obtain the corresponding informance of ip and mac in network, improve the information that on switch, SNMP cannot obtain.
Summary of the invention
Technical problem to be solved by this invention is the shortcoming overcoming prior art, provides the method and system of a kind of switch active probe IP, for improving the topology information in network.
It is as follows that the present invention solves the problems of the technologies described above taked technical scheme:
A method of switch active probe IP, comprising:
Home server is connected with remote exchange, and server obtains the information of each VLAN on switch by snmp protocol, and the information of described VLAN comprises ip address that each vlan uses and the subnet mask information that vlan uses;
Ip address described in keep-alive and subnet mask information, calculate the network segment of each VLAN by ip address and subnet mask information;
Logged on switch by TELNET agreement, and ask to the ping that switch sends for the network segment of each VLAN, described exchange opportunity, according to ping request results, upgrades the arp buffer memory on switch;
Server sends to switch the request of acquisition, and gets ip and the mac information that each port in the arp buffer memory on switch connects.
Further, preferably, specifically comprise: open multithreading, and use telnet agreement to log on switch simultaneously.
Further, preferably, ping request, by socket interface, is sent to switch with send order by server;
Server by snmp interface, sends request to switch again, and the ip information that mac and mac obtaining each port on switch is successively corresponding.
Further, preferably, the ping order using switch to have by oneself comes all ip addresses of active probe local port, upgrades the arp buffer memory on switch.
A system of switch active probe IP, comprising:
Home server is connected with remote exchange, and server obtains the information of each VLAN on switch by snmp protocol, and the information of described VLAN comprises ip address that each vlan uses and the subnet mask information that vlan uses;
Ip address described in keep-alive and subnet mask information, calculate the network segment of each VLAN by ip address and subnet mask information;
Logged on switch by TELNET agreement, and ask to the ping that switch sends for the network segment of each VLAN, described exchange opportunity, according to ping request results, upgrades the arp buffer memory on switch;
Server sends to switch the request of acquisition, and gets ip and the mac information that each port in the arp buffer memory on switch connects.
Further, preferably, specifically comprise: open multithreading, and use telnet agreement to log on switch simultaneously.
Further, preferably, ping request, by socket interface, is sent to switch with send order by server;
Server by snmp interface, sends request to switch again, and the ip information that mac and mac obtaining each port on switch is successively corresponding.
Further, preferably, the ping order using switch to have by oneself comes all ip addresses of active probe local port, upgrades the arp buffer memory on switch.
After this invention takes such scheme, better can adapt to the complex network environment of client, and obtaining information is also more efficient and stable, has good technique effect.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described in detail, to make above-mentioned advantage of the present invention definitely.Wherein,
Fig. 1 is the schematic flow sheet of the method for switch active probe IP of the present invention.
Embodiment
Describe embodiments of the present invention in detail below with reference to drawings and Examples, to the present invention, how application technology means solve technical problem whereby, and the implementation procedure reaching technique effect can fully understand and implement according to this.It should be noted that, only otherwise form conflict, each embodiment in the present invention and each feature in each embodiment can be combined with each other, and the technical scheme formed is all within protection scope of the present invention.
In addition, can perform in the computer system of such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawing, and, although show logical order in flow charts, but in some cases, can be different from the step shown or described by order execution herein.
SNMP:Simple Network Management Protocol, Simple Network Management Protocol, the standard managed by a group network forms, and comprises an application layer protocol, database model and one group of resource object.
MIB:Management Information Base: management information bank, the management object database of being accessed by NMP, it comprises SNMP can act on behalf of by the snmp management of the network equipment variable carrying out arranging.
SMI:Structure of Management Information: structure of management information, for being defined by the rule of the addressable object of NMP.SMI is defined in title in MIB of the data type and Internet resources that use in MIB or expression.
ICMP:Internet Control Message Protocol, Internet Control Message Protocol.It is a sub-protocol of TCP/IP protocol suite, for transmitting control message between IP main frame, router.
VLAN:Virtual Local Area Network, Chinese " VLAN " by name.
Embodiment one:
Telnet agreement is a member in TCP/IP protocol suite, is standard agreement and the major way of the service of Internet telnet.
What this programme mainly solved is exactly under complex network environment, by home server remote request switch, all ip of switch active probe local port, upgrade the arp buffer memory on switch, reach SNMP by means of only switch to obtain ip and the mac information that port connects.This programme better can adapt to the complex network environment of client, and obtaining information is also more efficient and stable.
Specifically, as shown in Figure 1, a kind of method of switch active probe IP, comprising:
Home server is connected with remote exchange, and server obtains the information of each VLAN on switch by snmp protocol, and the information of described VLAN comprises ip address that each vlan uses and the subnet mask information that vlan uses;
Ip address described in keep-alive and subnet mask information, calculate the network segment of each VLAN by ip address and subnet mask information;
Logged on switch by TELNET agreement, and ask to the ping that switch sends for the network segment of each VLAN, described exchange opportunity, according to ping request results, upgrades the arp buffer memory on switch;
Server sends to switch the request of acquisition, and gets ip and the mac information that each port in the arp buffer memory on switch connects.
After this invention takes such scheme, better can adapt to the complex network environment of client, and obtaining information is also more efficient and stable, has good technique effect.
Embodiment two:
In detail embodiment one is remarked additionally.
Log on switch by TELNET agreement, specifically comprise: open multithreading, and use telnet agreement to log on switch simultaneously.
Further, preferably, ping request, by socket interface, is sent to switch with send order by server;
And server is again by snmp interface, send request to switch, and the ip information that mac and mac obtaining each port on switch is successively corresponding.
Further, preferably, the ping order using switch to have by oneself comes all ip addresses of active probe local port, upgrades the arp buffer memory on switch.
This programme key point is the information first being obtained each VLAN on switch by snmp protocol; keep-alive ip and mask; then the network segment of each VLAN is calculated by ip and mask; log on switch by TELNET agreement again; ping request is sent by the send of socket; allow the ip of switch active probe under it, upgrade local arp buffer memory.
Embodiment three:
As shown in Figure 1, be the schematic flow sheet of a complete embodiment, it specifically comprises:
1. server obtains the vlan information on switch by the api of SNMP, and the ip of vlan and mask.
2. calculate by the ip of vlan and mask the network segment that each vlan uses.
3., by the mode of multithreading, open 4 threads and use telnet agreement to log on switch and certification is passed through simultaneously.
4. by the send order of socket, ping request is sent to switch, exchange opportunity performs the order received successively.
5. machine to be exchanged is by after all ip all ping, then local arp buffer memory has been updated to up-to-date.
6. server is again by the ip information that mac and mac of each port on the api acquisition switch of snmp is corresponding, and what now obtain is then final result, does not need to go completion information by the mode of active probe again.
Wherein, this programme has following several key point on technology realizes:
Obtain the information of switch vlan
1. the ip address using the .iso.org.dod.internet.mgmt.mib-2.ip.ipAddrTable.ipAddrEn try.ipAdEntIfIndex of snmp can obtain vlan to use, can obtain by .iso.org.dod.internet.mgmt.mib-2.ip.ipAddrTable.ipAddrEn try.ipAdEntNetMask the subnet mask information that vlan uses.
Calculate the network segment that vlan uses
1. calculate the network segment
1. use socket to connect No. 23 ports of switch, connect uses non-blocking fashion to connect, and avoids logging in restriction because switch has been telnet and causes being blocked in connect function place.
2. arranging socket is unblock
3. use select to monitor socket
4. after receiving the Password string that switch sends, then send password to switch, receive after certification passes through, then expression logs in successfully
5. log in and successfully send ping order by send afterwards, need use select and arrange time-out time for 1s herein, receive switch and return bag use recv reception, but do not process, avoid causing and read buffer overflow.
Embodiment four:
The effect that this patent can reach is said down below for a practical application scene:
After network internal has affixed one's name to server, configure at control desk the switch ip that needs to detect and filled the authentication password that telnet logs in, after authentication password, having preserved exchanger information.
Server can switch ports themselves link information in the refresh regular according to the information that switch configuration is good, is logged in the topologies in the network just can seen now, can retrieve a certain ip and connect on which port of switch by control desk.Control desk has a refresh button, and after button click, server can refresh current switch connection state information immediately.
The key point of this programme is the traditional approach of ip and the mac information of active probe Intranet to be changed to by switch active probe, more precisely with efficient.Active probe mode before this mode combines again, can realize simplified deployment, obtains the more detailed network topology under complex network environment.
The wish protection point of this patent, for log on switch by TELNET agreement, uses the own ping order of switch to carry out active probe, realizes the arp cache information that switch oneself renewal is local.
The program is except when original use SNMP obtains exchanger information, add the ip of surviving under making switch active probe the machine by TELNET order, and the arp buffer memory upgraded on switch, better can adapt to the network environment of client's complexity, can avoid disposing extra detector, more in real time with efficient in across NAT situation.The network segment calculated by ip and the mask of VLAN can be more accurate than client's manual configuration network segment, there is not the phenomenon of omission.
Embodiment five:
Corresponding with above embodiment of the method, the system of a kind of switch active probe IP, comprising:
Home server is connected with remote exchange, and server obtains the information of each VLAN on switch by snmp protocol, and the information of described VLAN comprises ip address that each vlan uses and the subnet mask information that vlan uses;
Ip address described in keep-alive and subnet mask information, calculate the network segment of each VLAN by ip address and subnet mask information;
Logged on switch by TELNET agreement, and ask to the ping that switch sends for the network segment of each VLAN, described exchange opportunity, according to ping request results, upgrades the arp buffer memory on switch;
Server sends to switch the request of acquisition, and gets ip and the mac information that each port in the arp buffer memory on switch connects.
Further, preferably, specifically comprise: open multithreading, and use telnet agreement to log on switch simultaneously.
Further, preferably, ping request, by socket interface, is sent to switch with send order by server;
Server by snmp interface, sends request to switch again, and the ip information that mac and mac obtaining each port on switch is successively corresponding.
Further, preferably, the ping order using switch to have by oneself comes all ip addresses of active probe local port, upgrades the arp buffer memory on switch.
After this invention takes such scheme, better can adapt to the complex network environment of client, and obtaining information is also more efficient and stable, has good technique effect.
It should be noted that, for said method embodiment, in order to simple description, therefore it is all expressed as a series of combination of actions, but those skilled in the art should know, the application is not by the restriction of described sequence of movement, because according to the application, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in specification all belongs to preferred embodiment, and involved action and module might not be that the application is necessary.
Those skilled in the art should understand, the embodiment of the application can be provided as method, system or computer program.Therefore, the application can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.
And the application can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a method of switch active probe IP, is characterized in that, comprising:
Home server is connected with remote exchange, and server obtains the information of each VLAN on switch by snmp protocol, and the information of described VLAN comprises ip address that each vlan uses and the subnet mask information that vlan uses;
Ip address described in keep-alive and subnet mask information, calculate the network segment of each VLAN by ip address and subnet mask information;
Logged on switch by TELNET agreement, and ask to the ping that switch sends for the network segment of each VLAN, described exchange opportunity, according to ping request results, upgrades the arp buffer memory on switch;
Server sends to switch the request of acquisition, and gets ip and the mac information that each port in the arp buffer memory on switch connects.
2. the method for switch active probe IP according to claim 1, is characterized in that, specifically comprise: open multithreading, and uses telnet agreement to log on switch simultaneously.
3. the method for switch active probe IP according to claim 1 and 2, is characterized in that, ping request, by socket interface, is sent to switch with send order by server;
Server by snmp interface, sends request to switch again, and the ip information that mac and mac obtaining each port on switch is successively corresponding.
4. the method for switch active probe IP according to claim 1 and 2, is characterized in that, the ping order using switch to have by oneself comes all ip addresses of active probe local port, upgrades the arp buffer memory on switch.
5. a system of switch active probe IP, is characterized in that, comprising:
Home server is connected with remote exchange, and server obtains the information of each VLAN on switch by snmp protocol, and the information of described VLAN comprises ip address that each vlan uses and the subnet mask information that vlan uses;
Ip address described in keep-alive and subnet mask information, calculate the network segment of each VLAN by ip address and subnet mask information;
Logged on switch by TELNET agreement, and ask to the ping that switch sends for the network segment of each VLAN, described exchange opportunity, according to ping request results, upgrades the arp buffer memory on switch;
Server sends to switch the request of acquisition, and gets ip and the mac information that each port in the arp buffer memory on switch connects.
6. the system of switch active probe IP according to claim 5, is characterized in that, specifically comprise: open multithreading, and uses telnet agreement to log on switch simultaneously.
7. the system of the switch active probe IP according to claim 5 or 6, is characterized in that, ping request, by socket interface, is sent to switch with send order by server;
Server by snmp interface, sends request to switch again, and the ip information that mac and mac obtaining each port on switch is successively corresponding.
8. the system of the switch active probe IP according to claim 5 or 6, is characterized in that, the ping order using switch to have by oneself comes all ip addresses of active probe local port, upgrades the arp buffer memory on switch.
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| CN201510156312.6A CN104780078A (en) | 2015-04-03 | 2015-04-03 | Method and system for initiatively detecting IP (Internet protocol) of switch |
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| CN108282369A (en) * | 2018-01-29 | 2018-07-13 | 郑州云海信息技术有限公司 | A kind of physical machine remote deployment method and device based on openstack |
| CN110995469A (en) * | 2019-11-13 | 2020-04-10 | 广东电网有限责任公司 | Local area network terminal rapid positioning method based on DHCP service |
| CN111092869A (en) * | 2019-12-10 | 2020-05-01 | 中盈优创资讯科技有限公司 | Security management and control method for terminal access to office network and authentication server |
| CN113542042A (en) * | 2020-04-13 | 2021-10-22 | 国网电力科学研究院有限公司 | Method for structured detection of host in local area network |
| CN113708984A (en) * | 2020-05-20 | 2021-11-26 | 中国移动通信集团浙江有限公司 | Network quality detection method and device, computing equipment and computer storage medium |
| CN115225530A (en) * | 2022-07-02 | 2022-10-21 | 北京华顺信安科技有限公司 | Asset state monitoring method, device, equipment and medium |
| CN115550317A (en) * | 2022-09-19 | 2022-12-30 | 中国工商银行股份有限公司 | Network resource management method, device, computer equipment and storage medium |
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