CN104869553A - Electronic equipment discovery method and apparatus, and router - Google Patents
Electronic equipment discovery method and apparatus, and router Download PDFInfo
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- CN104869553A CN104869553A CN201510266131.9A CN201510266131A CN104869553A CN 104869553 A CN104869553 A CN 104869553A CN 201510266131 A CN201510266131 A CN 201510266131A CN 104869553 A CN104869553 A CN 104869553A
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- electronic equipment
- cache
- cache entries
- router
- time
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/005—Discovery of network devices, e.g. terminals
Abstract
The invention provides an electronic equipment discovery method and an apparatus, and a router. The method is used to detect cached entries in ARP cache of the router. When a situation that a new cached entry is added to the ARP cache is detected, electronic equipment corresponding to the cached entry is marked as an access state. When a situation that the cached entry in the ARP cache is deleted is detected, the electronic equipment corresponding to the cached entry is marked as an off state. By using the method, the apparatus and the router, network access and off conditions of the electronic equipment can be intelligently and timely recorded.
Description
Technical field
The present invention relates to network communication technology field, particularly relate to a kind of electronic equipment discover method, device and a kind of router.
Background technology
In business WIFI system, the hotspot that user mobile phone is provided free by retail shop enters the Internet.Because of the needs of operation, background server need can turn-on time of cognitive radio user, time departure, use the information such as flow, mobile phone brand, the collection of above information all needs wireless router.At present, the not open drive source code (wireless chip of such as broadcom) of such as part wireless chip, the code of wireless driving cannot be revised, also namely cannot according to the access associating and cancel the state recording user associated of electronic equipment and router with leave, so the discovery mechanism needing to design a kind of electronic equipment with do not need to the code of wireless driving modify also can timely perception electronic equipment network insertion with leave.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of electronic equipment discover method, device and a kind of router, can not when not revising wireless driving code in prior art for solving, intelligent perception electronic equipment is timely to the access of network and the problem left.
For achieving the above object and other relevant objects, the invention provides a kind of electronic equipment discover method, comprise the steps: the cache entries detected in the arp cache of router, described cache entries comprises IP address and the MAC Address of the electronic equipment that is connected with described router communication; When a newly-increased cache entries in described arp cache being detected, marking electronic equipment corresponding to described cache entries is access state; When detecting that the cache entries in described arp cache is deleted, mark electronic equipment corresponding to described cache entries for leaving state.
Optionally, when router is behind described electronic equipment distributing IP address, LAN side local area network (LAN) to described router sends ARP query message, and when receiving corresponding with the described ARP query message reply message that described electronic equipment sends, increase the cache entries corresponding with described electronic equipment.
Optionally, when the cache-time of described cache entries is greater than a cache-time threshold value, described cache entries is deleted.
Optionally, when the cache-time of described cache entries is greater than described cache-time threshold value, LAN side local area network (LAN) to described router sends ARP query message, when receive in a Preset Time described electronic equipment send with described ARP inquire about report corresponding reply message time, retain described cache entries, and refresh the cache-time of described cache entries; When do not receive in a Preset Time described electronic equipment send with described ARP inquire about report corresponding reply message time, delete described cache entries.
Optionally, described cache-time threshold value is manually arranged for user.
For achieving the above object and other relevant objects, the present invention also provides a kind of electronic equipment to find device, comprise: detection module, in order to detect the cache entries in the arp cache of router, described cache entries comprises IP address and the MAC Address of the electronic equipment that is connected with described router communication; Mark module, during in order to a newly-increased cache entries in described arp cache to be detected when described detection module, marking electronic equipment corresponding to described cache entries is access state; When a deletion cache entries in described arp cache being detected, mark electronic equipment corresponding to described cache entries for leaving state.
Optionally, described electronic equipment finds device, also comprises: message sending module, in order to when router is behind described electronic equipment distributing IP address, to the LAN side local area network (LAN) transmission ARP query message of described router; Message replys monitoring modular, during in order to receive corresponding with the described ARP query message reply message of described electronic equipment transmission when router, increases the cache entries corresponding with described electronic equipment.
Optionally, described electronic equipment finds that device also comprises: cache-time monitoring modular, in order to monitor the cache-time of described cache entries, and when the cache-time of described cache entries is greater than a cache-time threshold value, deletes described cache entries.
Optionally, when the cache-time of the described cache entries of cache-time monitoring module monitors is greater than described cache-time threshold value, LAN side local area network (LAN) to described router sends ARP query message, when receive in a Preset Time described electronic equipment send with described ARP inquire about report corresponding reply message time, retain described cache entries, refresh the cache-time of described cache entries; When do not receive in a Preset Time described electronic equipment send with described ARP inquire about report corresponding reply message time, delete described cache entries.
For achieving the above object and other relevant objects, the present invention also provides a kind of router, and the electronic equipment had as above described in any one finds device.
As mentioned above, electronic equipment discover method of the present invention, device and a kind of router, detect the cache entries in the arp cache of router, and when a newly-increased cache entries in described arp cache being detected, marking electronic equipment corresponding to described cache entries is access state; When detecting that the cache entries in described arp cache is deleted, mark electronic equipment corresponding to described cache entries for leaving state, the present invention can intelligence and the network insertion of recorded electronic equipment timely and situation about leaving.
Accompanying drawing explanation
Fig. 1 is shown as the operation principle schematic diagram of a router.
Fig. 2 is shown as a kind of electronic equipment discover method of the present invention schematic flow sheet in one embodiment.
Fig. 3 is shown as a kind of electronic equipment of the present invention and finds device module diagram in one embodiment.
Fig. 4 is shown as a kind of electronic equipment of the present invention and finds device module diagram in one embodiment.
Fig. 5 is shown as a kind of electronic equipment of the present invention and finds device module diagram in one embodiment.
Fig. 6 is shown as a kind of router of the present invention module diagram in one embodiment.
Element numbers explanation
1,2,3,41 electronic equipments find device
11,21,31 detection modules
12,22,32 mark modules
23 message sending modules
24 messages reply monitoring modular
33 cache-time monitoring modulars
4 routers
S11, S12 step
Embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art the content disclosed by this specification can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this specification also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.It should be noted that, when not conflicting, the feature in following examples and embodiment can combine mutually.
It should be noted that, the diagram provided in following examples only illustrates basic conception of the present invention in a schematic way, then only the assembly relevant with the present invention is shown in diagram but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.
In actual use, the operation principle Pictorial examples of router is as shown in Figure 1, the WAN-side of described router passes through first line of a couplet equipment connection to internet, electronic equipment is by the LAN side of wireless access to router, and the packet of LAN side is forwarded to WAN-side by the mode of route, under the network environment of business WIFI, mobile phone is all LAN side direct communication that is direct and wireless router, be responsible for the uplink message of mobile phone to be forwarded to Internet by wireless router, and the downlink message of Internet is forwarded to mobile phone.According to the ARP course of work above, mobile phone and the LAN side of wireless router are exactly carry out two opposite ends that ARP communicates.And there is following several ARP interaction scenario:
1) mobile phone by wireless be connected into wireless router after, when there is an IP message interaction first time between mobile phone and router, the ARP message interaction between mobile phone and router will be triggered.
2), when the subsequent packet between mobile phone and router is mutual, if both sides exist about the arp cache of the other side, ARP message interaction is not triggered.
3) when the subsequent packet between mobile phone and router is mutual, if either party arp cache, surpass about the IP address of the other side and MAC Address map entry, then trigger ARP message interaction.
The present invention is by detecting the increase of the cache entries in the arp cache of router or deleting action, with network insertion that is intelligent and recorded electronic equipment timely and situation about leaving, refer to Fig. 1, be shown as a kind of electronic equipment discover method of the present invention schematic flow sheet in one embodiment.Described method comprises the steps:
S11: detect the cache entries in the arp cache of router, described cache entries comprises IP address and the MAC Address of the electronic equipment that is connected with described router communication;
S12: when a newly-increased cache entries in described arp cache being detected, marking electronic equipment corresponding to described cache entries is access state; When detecting that the cache entries in described arp cache is deleted, mark electronic equipment corresponding to described cache entries for leaving state.
If but do not access internet at once after mobile phone couple in router, then there is no message interaction between mobile phone and wireless router, until during mobile phone access Internet, router just can know the access of electronic equipment, this make to the time of electronic equipment access network flutter catch inaccurate, so, preferably, in another specific embodiment, when router is behind described electronic equipment distributing IP address, namely router and electronic equipment have carried out wireless or wired connection, and after being electronic equipment distributing IP by the Dynamic Host Configuration Protocol server of router LAN side, at once the LAN side local area network (LAN) to described router sends ARP query message, and when receiving corresponding with the described ARP query message reply message that described electronic equipment sends, increase the cache entries corresponding with described electronic equipment, and to mark electronic equipment corresponding to described cache entries be access state, because electronic equipment wireless be successfully associated with router after, initiatively will initiate the process of DHCP request address, so this operation can ensure the promptness that user catches turn-on time.
If and after once accessing internet, continue for some time (time-out time being such as greater than arp cache) and do not access internet, then arp cache can be deleted by automatic aging, user does not leave network so in time, user also can be designated as and leave by router, so preferred, in another specific embodiment, when the cache-time of described cache entries is greater than a cache-time threshold value, LAN side local area network (LAN) to described router sends ARP query message, described cache-time threshold value can be user and manually arranges and revise, when receive in a Preset Time described electronic equipment send with described ARP inquire about report corresponding reply message time, retain described cache entries, and refresh the cache-time of described cache entries, when do not receive in a Preset Time described electronic equipment send with described ARP inquire about report corresponding reply message time, delete described cache entries.Message response time delay in usual local area network (LAN) is less than 1 second, and described Preset Time can such as be set to 1 second.Proceed when the cache-time of cache entries is greater than a cache-time threshold value like this to judge whether described electronic equipment really leaves network, prevents the erroneous judgement left to electronic equipment.
Refer to Fig. 3, be shown as a kind of electronic equipment of the present invention and find device module diagram in one embodiment.Described electronic equipment finds that device 1 comprises: detection module 11 and mark module 12.
Described detection module 11 is in order to detect the cache entries in the arp cache of router, and described cache entries comprises IP address and the MAC Address of the electronic equipment that is connected with described router communication.
Described mark module 12 is in order to a newly-increased cache entries in described arp cache to be detected during when described detection module, marking electronic equipment corresponding to described cache entries is access state; When a deletion cache entries in described arp cache being detected, mark electronic equipment corresponding to described cache entries for leaving state.
If but do not access internet at once after mobile phone couple in router, then there is no message interaction between mobile phone and wireless router, until during mobile phone access Internet, router just can know the access of electronic equipment, this make to the time of electronic equipment access network flutter catch inaccurate, so, preferably, in another specific embodiment, refer to Fig. 4, be shown as a kind of electronic equipment of the present invention and find device module diagram in one embodiment.Described electronic equipment finds that device 2 comprises: detection module 21, mark module 22.Electronic equipment shown in Fig. 1 finds that the detection module 21 of device 1, the work of mark module 22 and principle all can be applicable in the present embodiment, and the electronic equipment in the present embodiment finds that device 2 also comprises message sending module 23 and message replys monitoring modular 24.Described message sending module 23 is in order to then when router is behind described electronic equipment distributing IP address, namely router and electronic equipment have carried out wireless or wired connection, and after being electronic equipment distributing IP by the Dynamic Host Configuration Protocol server of router LAN side, the LAN side local area network (LAN) to described router sends ARP query message; When described message replys monitoring modular 24 in order to receive corresponding with the described ARP query message reply message of described electronic equipment transmission when router, increase the cache entries corresponding with described electronic equipment.And to make described mark module 22 mark electronic equipment corresponding to described cache entries be access state, because electronic equipment wireless be successfully associated with router after, initiatively will initiate the process of DHCP request address, so this operation can ensure the promptness that user catches turn-on time.
If and after once accessing internet, continue for some time (time-out time being such as greater than arp cache) and do not access internet, then arp cache can be deleted by automatic aging, user does not leave network so in time, user also can be designated as and leave by router, so preferred, in another specific embodiment, refer to Fig. 5, be shown as a kind of electronic equipment of the present invention and find device module diagram in one embodiment, described electronic equipment finds that device 3 comprises monitoring modular 31 and mark module 32, electronic equipment shown in Fig. 1 and Fig. 2 finds the detection module of device, the work of mark module and principle all can be applicable in the present embodiment, and the electronic equipment in the present embodiment finds that device 3 also comprises a cache-time monitoring modular 33, in order to when the cache-time of described cache entries is greater than a cache-time threshold value, LAN side local area network (LAN) to described router sends ARP query message, described cache-time threshold value can be user and manually arranges and revise, when receive in a Preset Time described electronic equipment send with described ARP inquire about report corresponding reply message time, retain described cache entries, and refresh the cache-time of described cache entries, when do not receive in a Preset Time described electronic equipment send with described ARP inquire about report corresponding reply message time, delete described cache entries.Message response time delay in usual local area network (LAN) is less than 1 second, and described Preset Time can such as be set to 1 second.Proceed when the cache-time of cache entries is greater than a cache-time threshold value like this to judge whether described electronic equipment really leaves network, prevents the erroneous judgement left to electronic equipment.
Refer to Fig. 6, be shown as a kind of router of the present invention module diagram in one embodiment.Described router four has electronic equipment and finds device 41, and the electronic equipment in Fig. 3 ~ Fig. 5 finds that the structure and working principle of device all can be applicable in the present embodiment, in order to increase or the deletion action of the cache entries in the arp cache by detecting router four, with network insertion that is intelligent and recorded electronic equipment timely and situation about leaving.
In sum, electronic equipment discover method of the present invention, device and a kind of router, detect the cache entries in the arp cache of router, and when a newly-increased cache entries in described arp cache being detected, marking electronic equipment corresponding to described cache entries is access state; When detecting that the cache entries in described arp cache is deleted, mark electronic equipment corresponding to described cache entries for leaving state, the present invention can intelligence and the network insertion of recorded electronic equipment timely and situation about leaving.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (10)
1. an electronic equipment discover method, is characterized in that, comprises the steps:
Detect the cache entries in the arp cache of router, described cache entries comprises IP address and the MAC Address of the electronic equipment that is connected with described router communication;
When a newly-increased cache entries in described arp cache being detected, marking electronic equipment corresponding to described cache entries is access state; When detecting that the cache entries in described arp cache is deleted, mark electronic equipment corresponding to described cache entries for leaving state.
2. electronic equipment discover method according to claim 1, it is characterized in that: when router is behind described electronic equipment distributing IP address, LAN side local area network (LAN) to described router sends ARP query message, and when receiving corresponding with the described ARP query message reply message that described electronic equipment sends, increase the cache entries corresponding with described electronic equipment.
3. electronic equipment discover method according to claim 1, is characterized in that: when the cache-time of described cache entries is greater than a cache-time threshold value, delete described cache entries.
4. electronic equipment discover method according to claim 3, it is characterized in that: when the cache-time of described cache entries is greater than described cache-time threshold value, LAN side local area network (LAN) to described router sends ARP query message, when receive in a Preset Time described electronic equipment send with described ARP inquire about report corresponding reply message time, retain described cache entries, and refresh the cache-time of described cache entries; When do not receive in a Preset Time described electronic equipment send with described ARP inquire about report corresponding reply message time, delete described cache entries.
5. electronic equipment discover method according to claim 3, is characterized in that: described cache-time threshold value is manually arranged for user.
6. electronic equipment finds a device, it is characterized in that, comprising:
Detection module, in order to detect the cache entries in the arp cache of router, described cache entries comprises IP address and the MAC Address of the electronic equipment that is connected with described router communication;
Mark module, during in order to a newly-increased cache entries in described arp cache to be detected when described detection module, marking electronic equipment corresponding to described cache entries is access state; When a deletion cache entries in described arp cache being detected, mark electronic equipment corresponding to described cache entries for leaving state.
7. electronic equipment according to claim 6 finds device, it is characterized in that, also comprises:
Message sending module, in order to when router is behind described electronic equipment distributing IP address, to the LAN side local area network (LAN) transmission ARP query message of described router;
Message replys monitoring modular, during in order to receive corresponding with the described ARP query message reply message of described electronic equipment transmission when router, increases the cache entries corresponding with described electronic equipment.
8. electronic equipment according to claim 6 finds device, it is characterized in that, also comprises:
Cache-time monitoring modular, in order to monitor the cache-time of described cache entries, and when the cache-time of described cache entries is greater than a cache-time threshold value, deletes described cache entries.
9. electronic equipment according to claim 8 finds device, it is characterized in that: when the cache-time of the described cache entries of described cache-time monitoring module monitors is greater than described cache-time threshold value, LAN side local area network (LAN) to described router sends ARP query message, when receive in a Preset Time described electronic equipment send with described ARP inquire about report corresponding reply message time, retain described cache entries, and refresh the cache-time of described cache entries; When do not receive in a Preset Time described electronic equipment send with described ARP inquire about report corresponding reply message time, delete described cache entries.
10. a router, is characterized in that: the electronic equipment had according to any one of claim 6 ~ 9 finds device.
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| CN201510266131.9A CN104869553A (en) | 2015-05-22 | 2015-05-22 | Electronic equipment discovery method and apparatus, and router |
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| CN201510266131.9A CN104869553A (en) | 2015-05-22 | 2015-05-22 | Electronic equipment discovery method and apparatus, and router |
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| CN111147397A (en) * | 2019-12-25 | 2020-05-12 | 视联动力信息技术股份有限公司 | Message slice processing method and terminal |
| CN114499950A (en) * | 2021-12-23 | 2022-05-13 | 云洲(盐城)创新科技有限公司 | Address list acquisition method, address list acquisition device and network equipment |
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