CN104754069A - Dynamic address distribution method, device and server - Google Patents
Dynamic address distribution method, device and server Download PDFInfo
- Publication number
- CN104754069A CN104754069A CN201310750776.0A CN201310750776A CN104754069A CN 104754069 A CN104754069 A CN 104754069A CN 201310750776 A CN201310750776 A CN 201310750776A CN 104754069 A CN104754069 A CN 104754069A
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- address pool
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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
- 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]
-
- 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
- H04L61/5061—Pools of addresses
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a dynamic IP address distribution method which comprises the following steps: detecting whether a device is connected with a second network or not in real time; when detecting that the device is connected with the second network, judging whether the IP address of the device connected to the second network is in the range of default IP address pool of a first network or not; when the IP address of the device connected to the second network is not in the range of default IP address pool of the first network, dynamically changing the default IP address pool of the first network into the IP address pool which is in the same subnet together with the IP address of the device of the second network; allocating the IP address for the device connected with the first network according to the changed IP address pool based on the address distribution requirement sent by the device which is connected with the first network. The IP address can be automatically allocated by adopting the method without any operation of use.
Description
Technical field
The present invention relates to dynamic address allocation, more particularly, relate to dynamic address allocation method, device and the server with dynamic IP addressing pond and short rental period.
Background technology
In some cases, the IP address pool giving tacit consent to DHCP (DHCP, Dynamic HostConfiguration Protocol) server can not meet the demand of application program.
Such as, wifi access point for the equipment on dhcp client (wireless at WLAN() instead of LAN(wired) on equipment) play Dynamic Host Configuration Protocol server.The default ip address pool of Dynamic Host Configuration Protocol server is set up (such as, from 192.168.0.1 to 192.168.0.99) in factory.Dynamic Host Configuration Protocol server distributes to the IP address (such as, 192.168.0.1) of the dhcp client on WLAN, may with the IP address (such as, 10.10.10.10) of the equipment on LAN not in identical sub-network.As a result, WLAN(Wireless Local Area Network, WLAN (wireless local area network)) on equipment can not with LAN(Local AreaNetwork, local area network (LAN)) on devices communicating.
Existing method is that manual configuration IP address is used as IP address to be visited as the static address in same subnet network.Such as,
The IP address that equipment on LAN is to be visited: 10.10.10.10; The address of the wlan device distributed by DHCP: 192.168.0.1.So the address of wlan device has to manually change over: static ip address 10.10.10.11.
Summary of the invention
Additional aspects of the present invention and advantage part are set forth in the description below, also have part can find out significantly from description, or can obtain in the practice of the invention.
The Dynamic Host Configuration Protocol server with dynamic IP addressing pond can not only distribute DHCP client IP address, and dynamically changes the IP address of DHCP client.
Namely method user according to the present invention can carry out dynamic IP addressing configuration automatically without the need to carrying out any operation.
This application discloses a kind of dynamic IP addressing distribution method, comprising: detect on second network whether have equipment connection in real time; When detect second network has equipment connection time, judge that the IP address of the equipment on second network is whether in the scope of the default ip address pool of first network; When the IP address of the equipment on second network is not in the scope of the default ip address pool of first network, the default ip address pool of first network is dynamically changed into and the IP address pool of the IP address of the equipment of second network in same subnet; Based on the address assignment request that the equipment be connected with first network sends, be the equipment distributing IP address be connected with first network according to the IP address pool after changing.
Disclosed herein as well is a kind of dynamic IP addressing distributor, comprising: equipment connection detection module, be configured to detect in real time on second network whether have equipment connection; IP address judgment module, be configured to when equipment connection detection module detect second network has equipment connection time, judge that the IP address of the equipment on second network is whether in the scope of the default ip address pool of first network; IP address pool changes module, be configured to, when the IP address of the equipment on IP address judgment module determination second network is not in the scope of the default ip address pool of first network, the default ip address pool of first network dynamically be changed into and the IP address pool of the IP address of the equipment of second network in same subnet; IP address assignment module, based on the address assignment request that the equipment be connected with first network sends, is the equipment distributing IP address be connected with first network according to the IP address pool after changing.
Disclosed herein as well is a kind of dynamic host configuration protocol DHCP server carrying out dynamic address allocation, this server comprises: equipment connection detection module, is configured to detect in real time on second network whether have equipment connection; IP address judgment module, be configured to when equipment connection detection module detect second network has equipment connection time, judge that the IP address of the equipment on second network is whether in the scope of the default ip address pool of first network; IP address pool changes module, be configured to, when the IP address of the equipment on IP address judgment module determination second network is not in the scope of the default ip address pool of first network, the default ip address pool of first network dynamically be changed into and the IP address pool of the IP address of the equipment of second network in same subnet; IP address assignment module, based on the address assignment request that the equipment be connected with first network sends, is the equipment distributing IP address be connected with first network according to the IP address pool after changing.
Accompanying drawing explanation
Be described in detail the preferred embodiments of the present invention in conjunction with the drawings, above and other object of the present invention, characteristic and advantage will become apparent, and wherein identical label specifies the unit of same structure, and wherein:
Fig. 1 shows the flow chart of the dynamic IP addressing distribution method according to the embodiment of the present invention.
Fig. 2 shows the dynamic IP addressing distributor according to the embodiment of the present invention.
Fig. 3 connects default conditions figure according to the network of the embodiment of the present invention.
Fig. 4 is the state diagram of an equipment connection to first network.
Fig. 5 is the state diagram of another equipment connection to second network.
Fig. 6 is the reformed state diagram of IP address pool according to embodiment of the present invention first network.
Fig. 7 is the state diagram that equipment on first network is assigned with new IP address according to the embodiment of the present invention.
Embodiment
Below with reference to illustrating that the accompanying drawing of the embodiment of the present invention fully describes the present invention.But the present invention can realize in many different forms, and not will be understood that and be limited to embodiment described here.On the contrary, provide these embodiments to make the disclosure thorough and complete, and scope of the present invention will be given full expression to those skilled in the art.In the accompanying drawings, for the sake of clarity assembly is exaggerated.
Unless otherwise defined, all terms used herein (comprising technology and scientific terminology) have the identical meanings jointly understood with those skilled in the art.It should also be understood that, those terms such as defined in usual dictionary should be interpreted as having the consistent implication of implication with them in the context of correlation technique, and do not apply idealized or extremely formal meaning explain, unless defined so clearly here.
In order to realize automatic change, use two technology.
1, the IP address pool of Dynamic Host Configuration Protocol server is dynamic.This means that IP address pool can be triggered by event to change, the equipment on such as LAN is detected and the IP address of equipment on LAN is not in the scope of default ip address pool.
Such as, default ip address pool is from 192.168.0.1 to 192.168.0.99.When the equipment on the LAN that its IP address is 10.10.10.10 is detected by any method, then IP address pool will be changed to 10.10.10.11 to 10.10.10.99.
2, the short rental period
The IP address distributing to dhcp client is effective at specific time period.This is the rental period, and it utilizes IP address to send to dhcp client by Dynamic Host Configuration Protocol server.The short rental period (such as, 10 seconds) makes this dhcp client Dynamic Host Configuration Protocol server repeatedly can be asked to redistribute with the shorter cycle, makes to obtain new IP address fast when IP address pool changes.
Fig. 1 shows the flow chart of the dynamic IP addressing distribution method according to the embodiment of the present invention.
In step 101, detect on second network whether have equipment connection in real time.
In step 102, when detect second network has equipment connection time, judge that the IP address of the equipment on second network is whether in the scope of the default ip address pool of first network.
In step 103, when the IP address of the equipment on second network is not in the scope of the default ip address pool of first network, the default ip address pool of first network is dynamically changed into and the IP address pool of the IP address of the equipment of second network in same subnet,
In step 104, based on the address assignment request that the equipment be connected with first network sends, be the equipment distributing IP address be connected with first network according to the IP address pool after changing.Wherein, the IP address distributing to the equipment be connected with first network is effective in scheduled time slot.Described scheduled time slot can set according to the actual requirements, such as, be set to 10s, 15s etc.After effective scheduled time slot, based on the address assignment request that the equipment be connected with first network sends, be the equipment distributing IP address be connected with first network again.
In addition, dynamic IP addressing distribution method according to the present invention comprises further, when detect second network there is no equipment connection time, the IP address pool of first network is reverted to default ip address pool.
First network is such as WLAN (wireless local area network) WLAN; Second network is such as local network LAN.
Fig. 2 shows the dynamic IP addressing distributor according to the embodiment of the present invention.
Dynamic IP addressing distributor comprises: equipment connection detection module 201, IP address judgment module 202, IP address pool change module 203 and IP address assignment module 204.
Equipment connection detection module 201 detects on second network whether have equipment connection in real time.
Equipment connection detection module 201 detect second network has equipment connection time, IP address judgment module 202 judges that the IP address of the equipment on second network is whether in the scope of the default ip address pool of first network.
When IP address judgment module 202 determines that the IP address of the equipment on second network is not in the scope of the default ip address pool of first network, IP address pool changes module 203 and is dynamically changed into by the default ip address pool of first network and the IP address pool of the IP address of the equipment of second network in same subnet.
The address assignment request that IP address assignment module 204 sends based on the equipment be connected with first network, be the equipment distributing IP address be connected with first network according to the IP address pool after changing.
The IP address that IP address assignment module 204 distributes to the equipment be connected with first network is effective in scheduled time slot.Described scheduled time slot can set according to the actual requirements, such as, be set to 10s, 15s etc.After the effective scheduled time slot of this IP address, the equipment be connected with first network sends address assignment request to IP address assignment module 204.
When described equipment connection detection module 201 detect second network there is no equipment connection time, IP address pool changes module 203 and the IP address pool of first network is reverted to default ip address pool.
Fig. 3 connects default conditions figure according to the network of the embodiment of the present invention.
As shown in Figure 3, there are two networks, i.e. first network WLAN and second network LAN.First network has the default ip address pool such as from 192.168.0.1 to 192.168.0.99.
Fig. 4 is the state diagram of an equipment connection to first network.
As shown in Figure 4, the equipment be connected with first network will be assigned to every the IP address (192.16.0.1) that scheduled time slot (such as 10 seconds) is identical.The IP address distributing to the equipment be connected with first network is effective in scheduled time slot.
Fig. 5 is the state diagram of another equipment connection to second network.
As shown in Figure 5, the equipment on second network has IP address 10.10.10.10.This IP address is not in the scope of the default ip address pool of first network.
Fig. 6 is the reformed state diagram of IP address pool according to embodiment of the present invention first network.
As shown in Figure 6, the IP address pool of first network is changed to the IP address pool with the equipment on second network in same subnet.
Fig. 7 is the state diagram that equipment on first network is assigned with new IP address according to the embodiment of the present invention.
As shown in Figure 7, after effective scheduled time slot, based on the address assignment request that the equipment be connected with first network sends, the equipment on first network has been assigned with new IP address according to the IP address pool after change.
Namely method user according to the present invention can carry out dynamic IP addressing configuration automatically without the need to carrying out any operation.
The above is to explanation of the present invention, and should not be considered to limitation ot it.Although describe some exemplary embodiments of the present invention, those skilled in the art will easily understand, and can carry out many amendments under the prerequisite not deviating from teaching of the present invention and advantage to exemplary embodiment.Therefore, all such modifications are all intended to be included in the scope of the invention that claims limit.Be to explanation of the present invention above should be appreciated that, and should be considered to be limited to disclosed specific embodiment, and the amendment intention of the disclosed embodiments and other embodiments is comprised within the scope of the appended claims.The present invention is limited by claims and equivalent thereof.
Claims (15)
1. a dynamic IP addressing distribution method, comprising:
Whether real-time detection second network there is equipment connection;
When detect second network has equipment connection time, judge that the IP address of the equipment on second network is whether in the scope of the default ip address pool of first network;
When the IP address of the equipment on second network is not in the scope of the default ip address pool of first network, the default ip address pool of first network is dynamically changed into and the IP address pool of the IP address of the equipment of second network in same subnet;
Based on the address assignment request that the equipment be connected with first network sends, be the equipment distributing IP address be connected with first network according to the IP address pool after changing.
2. method according to claim 1, wherein, the IP address distributing to the equipment be connected with first network is effective in scheduled time slot.
3. method according to claim 2, wherein, when detect second network there is no equipment connection time, the IP address pool of first network is reverted to default ip address pool.
4. method according to claim 3, wherein, after effective scheduled time slot, based on the address assignment request that the equipment be connected with first network sends, is the equipment distributing IP address be connected with first network again.
5. method according to claim 4, wherein, first network is WLAN (wireless local area network) WLAN; Second network is local network LAN.
6. a dynamic IP addressing distributor, comprising:
Equipment connection detection module, is configured to detect in real time on second network whether have equipment connection;
IP address judgment module, be configured to when equipment connection detection module detect second network has equipment connection time, judge that the IP address of the equipment on second network is whether in the scope of the default ip address pool of first network;
IP address pool changes module, be configured to, when the IP address of the equipment on IP address judgment module determination second network is not in the scope of the default ip address pool of first network, the default ip address pool of first network dynamically be changed into and the IP address pool of the IP address of the equipment of second network in same subnet;
IP address assignment module, is configured to the address assignment request sent based on the equipment be connected with first network, is the equipment distributing IP address be connected with first network according to the IP address pool after changing.
7. device according to claim 5, wherein, the IP address distributing to the equipment be connected with first network is effective in scheduled time slot.
8. device according to claim 7, wherein, when described equipment connection detection module detect second network there is no equipment connection time, IP address pool changes module and the IP address pool of first network is reverted to default ip address pool.
9. device according to claim 8, wherein, after effective scheduled time slot, the equipment be connected with first network sends address assignment request to IP address assignment module.
10. device according to claim 9, wherein, first network is WLAN (wireless local area network) WLAN; Second network is local network LAN.
11. 1 kinds of dynamic host configuration protocol DHCP servers carrying out dynamic address allocation, this server comprises:
Equipment connection detection module, is configured to detect in real time on second network whether have equipment connection;
IP address judgment module, be configured to when equipment connection detection module detect second network has equipment connection time, judge that the IP address of the equipment on second network is whether in the scope of the default ip address pool of first network;
IP address pool changes module, be configured to, when the IP address of the equipment on IP address judgment module determination second network is not in the scope of the default ip address pool of first network, the default ip address pool of first network dynamically be changed into and the IP address pool of the IP address of the equipment of second network in same subnet;
IP address assignment module, is configured to the address assignment request sent based on the equipment be connected with first network, is the equipment distributing IP address be connected with first network according to the IP address pool after changing.
12. servers according to claim 11, wherein, the IP address distributing to the equipment be connected with first network is effective in scheduled time slot.
13. servers according to claim 12, wherein, when described equipment connection detection module detect second network there is no equipment connection time, IP address pool changes module and the IP address pool of first network is reverted to default ip address pool.
14. servers according to claim 13, wherein, after effective scheduled time slot, the equipment be connected with first network sends address assignment request to IP address assignment module.
15. servers according to claim 14, wherein, first network is WLAN (wireless local area network) WLAN; Second network is local network LAN.
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| CN201310750776.0A CN104754069B (en) | 2013-12-31 | 2013-12-31 | Dynamic address allocation method, apparatus and server |
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| CN201310750776.0A CN104754069B (en) | 2013-12-31 | 2013-12-31 | Dynamic address allocation method, apparatus and server |
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| CN104754069B (en) | 2018-10-02 |
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