CN102694873B - A kind of address pool distribution system and method - Google Patents

Abstract

The invention discloses an address pool allocation system and method, including: an address pool time control management configuration module, an address pool time control management module, and an address pool time control allocation processing module, wherein the address pool time control management configuration module is used to configure addresses Pool parameters and save the address pool parameters in the address pool time control management module, the address pool parameters include: the correspondence between the address pool category and the user terminal, the available time of each type of address pool; the address pool time control allocation process The module is used to determine the address pool category corresponding to the user terminal and the available time of the address pool of this category according to the address pool parameters saved by the address pool time control management module after receiving the IP address allocation request sent by the user terminal; determine the current time When it belongs to the available time of the address pool of this category, an IP address is selected from the address pool of this category and assigned to the user terminal. The system can reasonably allocate IP addresses according to the time spent on the Internet.

Description

An address pool allocation system and method

technical field

The present invention relates to the technical field of communications, in particular to an address pool allocation system and method.

Background technique

With the rapid development of the Internet, the Internet has gradually become a part of people's daily life. The continuous development of network technology and the continuous increase of people's demand for the network have resulted in the continuous expansion of the network scale and the continuous increase in the number of network users. Today's broadband access In the network, PPPOE and DHCP have become the most common access methods. Through the interactive processing of messages between the client and server of the PPPOE protocol or DHCP protocol, the broadband access server is triggered to allocate an IP address, and the user can access the network after obtaining the allocated IP address. In the use of broadband access technology, the collection of IP addresses is called an address pool, because with the address pool, users can access the network and have the necessary IP address resources to use. The address pool is like a huge collection of IP addresses, which manages, allocates and reclaims many IP addresses in a coordinated manner.

Reasonable planning of address pools is the key to networking planning in the access network environment. Reasonable planning of address pools can make resource allocation reasonable and meet the needs of different user groups. Therefore, at the beginning of network planning, network administrators need to conduct research and collect information to plan a reasonable address pool. Since the use of the address pool is public, it is necessary to make reasonable and timely full use of the precious address pool resources. The current common planning method is to classify the address pools, and then assign each type of address pools to fixed user groups.

However, the existing planning method has the following defects: Since each user accesses the network at different times and times, only a single classification method is used, which will cause long-term waste of IP addresses when the user does not go online for a long time.

Contents of the invention

The invention provides an address pool allocation system and method, which are used to solve the problem in the prior art that IP addresses are wasted for a long time when users do not surf the Internet for a long time.

An address pool allocation system, comprising: an address pool time control management configuration module, an address pool time control management module, and an address pool time control allocation processing module, wherein,

The address pool time control management configuration module is used to configure the address pool parameters and save the address pool parameters in the address pool time control management module, wherein the address pool parameters include: the correspondence between the address pool category and the user terminal, and each Available time of class address pool;

An address pool time control management module, configured to store the address pool parameters;

The address pool time control allocation processing module is used to determine the address pool category corresponding to the user terminal and the address pool of this category according to the address pool parameters stored in the address pool time control management module after receiving the IP address allocation request sent by the user terminal When it is determined that the current time belongs to the available time of the address pool of this category, an IP address is selected from the address pool of this category and assigned to the user terminal.

Preferably, the address pool time control allocation processing module is further configured to return an IP address request failure message when it is determined that the current time does not belong to the available time of the type of address pool.

Preferably, the address pool time control management configuration module is also used to pre-configure time control parameters, and the system further includes:

The address pool application rate time automatic control module is used to store pre-configured time control parameters, and monitor the access network status of each user terminal through the address pool time control allocation processing module, and obtain the statistical results of the user terminal access network status ; Comparing whether the statistical result matches the pre-configured time control parameters, and if not, modifying the address pool parameters stored by the address pool time control management module.

Preferably, the time control parameters include at least one of the following parameters or any combination thereof: address pool available time length, available startup time, available shutdown time, whether automatic adjustment of available time is allowed, address pool application rate statistics times, address pool The upper limit of the application ratio and the lower limit of the application ratio of the address pool.

Preferably, the statistical results include at least one of the following results or any combination thereof: user terminal access times, access time, status indication of access success or access failure.

Preferably, when the time control parameters include whether to allow automatic adjustment of available time parameters, when the address pool application rate time automatic control module modifies the address pool parameters stored in the address pool time control management module, specifically for :

If automatic adjustment of the available time is allowed, then automatically modify the address pool parameters stored in the address pool time control management module;

If the automatic adjustment of the available time is not allowed, the corresponding prompt information that needs to modify the parameters of the address pool will be displayed or an alarm information will be issued.

A method for allocating an address pool, comprising:

Receive the IP address allocation request sent by the user terminal, and determine the address pool category corresponding to the user terminal and the available time of the address pool of this category according to the saved address pool parameters, wherein the address pool parameters include: the correspondence between the address pool category and the user terminal , and the availability time of each type of address pool;

When it is determined that the current time belongs to the available time of the address pool of the category, an IP address is selected from the address pool of the category and assigned to the user terminal.

Preferably, the method further includes: when it is determined that the current time does not belong to the available time of the address pool of the category, returning an IP address request failure message.

Preferably, the method further includes: configuring time control parameters in advance, and monitoring the network access conditions of each user terminal, and obtaining statistical results of the network access conditions of the user terminals;

Compare whether the statistical result matches the pre-configured time control parameters, and modify the address pool parameters if they do not match.

Preferably, the time control parameters include at least one of the following parameters or any combination thereof: address pool available time length, available startup time, available shutdown time, whether automatic adjustment of available time is allowed, address pool application rate statistics times, address pool The upper limit of the application ratio and the lower limit of the application ratio of the address pool.

Preferably, the statistical results include at least one of the following results or any combination thereof: user terminal access times, access time, status indication of access success or access failure.

Preferably, when the time control parameters include whether to allow automatic adjustment of available time parameters, the implementation of modifying the address pool parameters includes:

If automatic adjustment of the available time is allowed, then automatically modify the address pool parameters;

If the automatic adjustment of the available time is not allowed, the corresponding prompt information that needs to modify the parameters of the address pool will be displayed or an alarm information will be issued.

The address pool allocation system and method in the embodiment of the present invention can set the available time of each type of address pool according to the corresponding relationship between the address pool type and the user terminal, so that the IP address can be allocated reasonably according to the user's online time, which satisfies the It also avoids the waste of IP address resources when users do not surf the Internet for a long time.

Description of drawings

FIG. 1 is a structural diagram of an address pool allocation system in an embodiment of the present invention;

FIG. 2 is a flow chart of a method for allocating an address pool in an embodiment of the present invention;

Fig. 3 is the specific flow chart when the user goes online in the embodiment of the present invention;

Fig. 4 is the specific flowchart when the user goes offline in the embodiment of the present invention;

FIG. 5 is a specific flowchart of dynamically adjusting address pool parameters in an embodiment of the present invention.

detailed description

The embodiment of the present invention provides an address pool allocation system and method, which can solve the problem in the prior art that IP addresses are wasted for a long time when users do not surf the Internet for a long time.

The address pool allocation system provided by the embodiment of the present invention is introduced in detail below. As shown in FIG. 1, the system includes: an address pool time control management configuration module 11, an address pool time control management module 12, and an address pool utilization rate time automatic control module 13. An address pool utilization rate statistics module (not shown in the figure) and an address pool time control allocation processing module 14 .

Wherein, the address pool time control management configuration module 11 is mainly used for the network administrator to collect configuration parameters of the address pool in advance. Here, the configuration parameters include address pool parameters and time control parameters. Address pool parameters include correspondence between address pool categories and user terminals, availability time of each type of address pool, and address pool priority, etc. These address pool parameters are configured and saved in address pool time control management module 12 . There are many time control parameters, for example, the available time length parameters of the address pool, the available start time, the available shutdown time, whether to allow automatic adjustment of the available time, the number of address pool application rate statistics, such as the upper limit of the address pool application rate and the address The lower limit value of the pool utilization ratio, etc., these time control parameters are configured and stored in the address pool utilization ratio time automatic control module 13 .

The address pool time control management module 12 is mainly used to store the address pool parameters configured by the address pool time control management configuration module 11, that is, the correspondence between the address pool category and the user terminal and the initial configuration of the available time of each type of address pool, The parameters of the address pool can also be modified according to the modification instruction sent by the automatic control module 13 of the utilization rate of the address pool. Wherein, the address pool parameters include the use time period or use time point of each address pool. Because the main feature of this system is that the address pool parameter information saved in the address pool time control management module 12 can be controlled according to the time control parameter in the address pool utilization rate time automatic control module 13, such as the available time of each address pool, etc., therefore, When the address pool utilization rate time automatic control module 13 in this system needs to adjust the address pool parameters in the address pool time control management module 12, the parameter information in the address pool time control management module 12 can be directly modified, and also The network administrator can be notified in the form of a prompt message or an alarm, that is, a corresponding prompt message or an alarm message that needs to modify the parameters of the address pool is displayed, and the network administrator can modify it.

The address pool utilization rate time automatic control module 13 is mainly used to store the time control parameters configured by the address pool time control management configuration module 11 . Moreover, the address pool utilization rate time automatic control module 13 is also used to control the address pool utilization rate statistical module to monitor the network access conditions of each user terminal, and obtain the statistical results of the user terminal access network conditions. For example, the address pool utilization rate statistical module is controlled to perform statistics on the access times and access time of the user terminal, and receives the statistical results fed back by the address pool utilization rate statistical module. Then, the address pool utilization rate time automatic control module 13 compares the statistical results with the stored time control parameters, determines whether the statistical results match the pre-configured time control parameters according to the comparison results, and adaptively modifies the address pool parameters when they do not match . For example, the statistical results generally include: user access times, access time, and offline time, etc., and also include status indications of user access failure or access success; time control parameters generally include: available time length parameters of the address pool, available Start-up time, available closing time, whether to allow automatic adjustment of available time, the number of address pool application rate statistics, such as the upper limit value of the address pool application rate ratio and the lower limit value of the address pool application rate ratio, etc., the address pool application rate time automatic control module 13 According to the number of access times and access time in the statistical results, judge whether the upper limit or lower limit of the address pool application ratio set in the time control parameter is exceeded. If it exceeds, corresponding time control of the address pool is required The address pool parameters stored in the management module 12 are adjusted, such as adjusting information such as the available time of a certain type of address pool; or, if it is found that the time when the user accesses the network has changed, for example, the user usually accesses the network in the morning, therefore, The available time allocated in the address pool parameters is morning, but it is found in the statistical results that users sometimes access the network in the afternoon. At this time, because it is not within the available time range, the user fails to access the network. Therefore, the address After the pool utilization rate time automatic control module 13 discovers the situation of access failure in the statistical results, it can modify information such as the available time in the address pool parameters according to the user's access time, thereby ensuring that the user can access the Internet normally.

The address pool utilization rate statistical module is used to count the network access conditions of user terminals according to the control of the address pool utilization rate time automatic control module 13, and send the statistical results to the address pool utilization rate time automatic control module 13. During specific implementation, the function of the address pool utilization rate statistics module may also be integrated into the address pool utilization rate time automatic control module 13, that is, the two modules are designed as one module.

The address pool time control allocation processing module 14 is mainly used to receive the allocation IP address request sent by the user when accessing the network, and determine the address pool category corresponding to the user terminal according to the address pool parameters stored in the address pool time control management module 12 And the available time of the type of address pool; when it is determined that the current time belongs to the available time of the type of address pool, select an IP address from the type of address pool to assign to the user terminal. Specifically, when distinguishing user terminals, it can be distinguished according to the cluster marks of the user terminals, that is, the IP address resources in the address pool can be divided into several categories, and at the same time, the user terminals can also be divided into several categories according to the cluster marks, and the specified user Correspondence between terminal types and address pool types.

By adopting the system for allocating address pools provided by the embodiments of the present invention, the available time of each address pool category can be set according to the corresponding relationship between the address pool category and the user terminal, so that the IP address can be reasonably allocated according to the user's Internet access time, which satisfies the It meets the needs of users and avoids the waste of IP address resources when users do not surf the Internet for a long time. Moreover, the system in the embodiment of the present invention can also monitor the access network status of the user terminal in real time, and dynamically adjust the address pool parameters when the statistical results of the access network status do not match the pre-configured time control parameters, so that During use, the allocation of address pool resources is dynamically adjusted according to the actual situation, so that the allocation method is more flexible and reasonable.

The embodiment of the present invention also provides a method for allocating an address pool, which mainly includes the following main steps, as shown in Figure 2:

S201: Configure address pool parameters. Specifically include:

First, configure dedicated address resources for address pools, and configure dedicated address pools for different user groups. For example, if there are mainly three user groups, and each user group is distinguished by its own cluster mark, the address pool resources can be divided into three categories in advance, or the address pool resources can also be divided into multiple categories.

Then, use objects of different types of address pool resources are configured, and various types of address pool resources are allocated to different user groups for use. That is, several types of address pool resources in S201a are allocated to several user groups respectively, that is, the corresponding relationship between address pool types and user terminals is specified.

Finally, configure address pool parameters, including configuring the available time of each type of address pool resources, such as from what time to what time, or from what time, how many hours are allowed to be used, etc. You can also configure the priorities of various address pools.

S202: Configuring time control parameters. Specifically include:

First, set whether to allow automatic adjustment of the address pool time control parameters. If it is set to allow automatic adjustment, the address pool parameters can be automatically modified as required. If it is set to not allow automatic adjustment, when the address pool parameters need to be modified, the required Modify the corresponding prompt information of address pool parameters or issue warning information to notify the network administrator to make adjustments.

Then, configure the time control parameters, wherein the time control parameters may include: address pool available time length, available startup time, available shutdown time, whether automatic adjustment of available time is allowed, and statistics times of address pool utilization rate. For example, the following configurations can be performed, including: configuring the address pool allocation time control to automatically adjust the detection unit time; configuring the address pool allocation time control to automatically adjust the number of detections; configuring the address pool allocation time control to automatically adjust the parameters such as the online ratio of the detection unit time and configuring the address The available time length of the pool, the available startup time, the available shutdown time, whether automatic adjustment of the available time is allowed, the number of address pool application rate statistics, such as the upper limit of the address pool application rate ratio and the lower limit value of the address pool application rate ratio.

S203: Receive an IP address assignment request sent by a user terminal when accessing the network, and assign an IP address to the user terminal. Specifically include:

Firstly, the IP address allocation request sent by the user terminal is received, and the address pool type corresponding to the user terminal is determined according to the address pool parameters saved in advance.

Then, check the available time of the address pool category, and judge whether the current time is within the available time range of the address pool category, if the judgment result is "Yes", select an IP address from the address pool category to assign to the user The terminal; if the judgment result is "No", the IP address application fails, the user terminal is notified of the failure to access, that is, the IP address request failure message is returned, and the status indication of the access failure is saved.

S204: Monitor network access conditions of each user terminal to obtain statistical results of network access conditions of user terminals; compare whether the statistical results match the pre-configured time control parameters, and adaptively modify address pool parameters if they do not match. Specifically include:

Firstly, monitor the user terminal's access times, access time, status indication of successful access or failed access, and record corresponding statistical data.

Then, compare whether the statistical result matches the pre-configured time control parameters, and adaptively modify the address pool parameters if they do not match. Specifically, information such as the detection unit time, the number of detection times, and the time-to-line ratio can be automatically adjusted according to the previously configured time control to generate an optimal time period suitable for adjustment. For example, the statistical results generally include: user access times, access time, and offline time, etc., and also include status indications of user access failure or access success; time control parameters generally include: available time length parameters of the address pool, available Startup time, available shutdown time, whether automatic adjustment of available time is allowed, the number of address pool application rate statistics, such as the upper limit of the address pool application rate and the lower limit of the address pool application rate, etc. Access times and access time are used to determine whether the upper limit or lower limit of the address pool application ratio set in the time control parameter is exceeded. If it exceeds, the address pool parameters need to be adjusted accordingly, such as adjusting a certain type of Information such as the available time of the address pool; or, if it is found that the time when the user accesses the network has changed, for example, the user usually accesses the network in the morning, so the available time allocated in the address pool parameters is morning, and the statistical result However, it is found that users sometimes access the network in the afternoon. At this time, the user access fails because it is not within the available time range. Therefore, if the access failure is found in the statistical results, you can use the The user's access time modifies information such as the available time in the address pool parameters, so as to ensure that the user can access the Internet normally.

Finally, when the address pool parameters need to be adjusted, judge whether the time control parameters of the address pool allow automatic adjustment. If automatic adjustment is allowed, the address pool parameters are automatically modified as required. If automatic adjustment is not allowed, the network administrator is notified by means of an alarm. The best time period to make adjustments.

Among them, step S204 can be performed in real time, that is, to monitor the user terminal's access to the network at any time and compare whether the statistical results match the pre-configured time control parameters, or it can be performed periodically, or only when a user terminal accesses or exits the network In short, the implementation methods are flexible and diverse.

Moreover, in this method, after step S203, the following steps may be further included: after receiving the logout request sent by the user terminal, recovering the IP address allocated to the user terminal this time, and saving the logout record of the user.

The specific details of the above method will be introduced in detail below by taking the processing process of the user going online and the user going offline respectively as examples.

The processing flow when the user goes online is shown in Figure 3, including the following steps:

S301: The user prepares to access the network;

S302: The user terminal requests to obtain an IP address, that is, sends a request for assigning an IP address;

S303: According to the allocation IP address request sent by the user terminal, find the category address pool corresponding to the user terminal; specifically, according to the cluster mark of the user terminal or the type of the user terminal, search for the saved address pool parameters, according to the address pool category and the user terminal The corresponding relationship determines the category address pool corresponding to the user terminal;

S304: Check the current time, and determine the available time of the type of address pool according to the available time of the address pool of each type;

S305: Judging whether the current time exceeds the available time range of the type of address pool, if the judgment result is yes, then execute step S306; if the judgment result is no, then execute step S308;

S306: return an IP address application failure message, and notify the user that the user cannot go online, that is, the online fails;

S307: Record the online failure message, which may also be referred to as an access failure status indication, in the address pool utilization rate statistics module;

S308: Select an IP address from the address pool of the category and assign it to the user;

S309: Return the IP address allocation success message to the user; at the same time, record the IP address allocation success message, which may also be referred to as a status indication of successful access, in the address application rate statistics module;

S310: The processing of this flow ends.

The processing flow when the user goes offline is shown in Figure 4, including the following steps:

S401: the process starts;

S402: the user terminal sends an offline request;

S403: After receiving the logout request, release the IP address currently used by the user terminal;

S404: Set the IP address in the address pool to an idle state;

S405: Record the message that the user terminal goes offline into the address pool utilization rate statistics module;

S406: The processing of this flow ends.

The following describes in detail the specific process of dynamically adjusting address pool parameters in the embodiment of the present invention, as shown in Figure 5, including:

S501: the process starts;

S502: Collect user online/offline messages through the address pool time control allocation processing module; or, collect user online/offline success or online/offline failure messages;

S503: Send the collected user online/offline message or user online/offline success or online/offline failure message to the address pool application rate time automatic control module;

S504: The address pool application rate time automatic control module combines the collected user online/offline information or user online/offline success or online according to the previously configured time control parameters and information such as detection unit time, detection times, time online ratio, etc. /Offline failure message, adjust the address pool parameters, so as to generate the best time period suitable for adjustment; the specific adjustment method can refer to step S204;

S505: Judging whether automatic adjustment is allowed according to whether automatic adjustment of available time is allowed in the time control parameters, if the judgment result is no, then execute step S508, if the judgment result is yes, then execute step S506;

S506: Automatically adjust the configuration of the available time period of the address pool;

S507: Output prompt information to notify the network administrator that the available time period of the address pool has been automatically adjusted;

S508: Notifying the network administrator of the optimal time period suitable for adjustment by means of a prompt message or an alarm.

By adopting the method for allocating address pools provided by the embodiments of the present invention, the available time of each address pool category can be set according to the corresponding relationship between the address pool category and the user terminal, so that the IP address can be reasonably allocated according to the user's online time, which satisfies the It meets the needs of users and avoids the waste of IP address resources when users do not surf the Internet for a long time. Moreover, the method in the embodiment of the present invention can also monitor the access network status of the user terminal in real time, and dynamically adjust the address pool parameters when the statistical results of the access network status do not match the pre-configured time control parameters, so that During use, the allocation of address pool resources is dynamically adjusted according to the actual situation, so that the allocation method is more flexible and reasonable.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Accordingly, the present invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

While preferred embodiments of the invention have been described, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, it is intended that the appended claims be construed to cover the preferred embodiment as well as all changes and modifications which fall within the scope of the invention.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and equivalent technologies thereof, the present invention also intends to include these modifications and variations.

Claims (10)

1. an address pool distribution system, is characterized in that, comprising: address pool time controling management configuration module, address pool time controling administration module and address pool time controling allocation process module, wherein,

Address pool time controling management configuration module, for configuration address pond parameter described address pool parameter is kept in address pool time controling administration module, wherein, address pool parameter comprises: the corresponding relation of address pool classification and user terminal, and the up duration of address pool of all categories;

Address pool time controling administration module, for storing described address pool parameter;

Address pool time controling allocation process module, for after the distributing IP Address requests receiving user terminal transmission, determine the up duration of the address pool classification that this user terminal is corresponding and this classification address pool according to the address pool parameter of preserving in address pool time controling administration module; When determining that current time belongs to the up duration of this classification address pool, from this classification address pool, select an IP address assignment to this user terminal;

Described address pool time controling management configuration module, also for pre-configured time control parameter, described system also comprises: address pool utility ratio time automatic control module, for storing pre-configured time control parameter, and by the access network situation of described each user terminal of address pool time controling allocation process module monitors, obtain the statistics of accessing user terminal to network situation; Whether more described statistics mates with pre-configured time control parameter, and when not mating, revises the address pool parameter that described address pool time controling administration module stores.

2. the system as claimed in claim 1, is characterized in that, described address pool time controling allocation process module, time also for determining that current time does not belong to the up duration of this classification address pool, returns IP Address requests failed message.

3. the system as claimed in claim 1, it is characterized in that, described time control parameter at least comprises one of following parameter or its combination in any: address pool up duration length, available start-up time, available shut-in time, whether allow that up duration adjusts automatically, address pool utility ratio statistics number, address pool utility ratio ratio higher limit and address pool utility ratio ratio lower limit.

4. the system as claimed in claim 1, is characterized in that, described statistics at least comprises one of following result or its combination in any: the state instruction of user terminal access number of times, turn-on time, access success or access failure.

5. the system as described in claim 1 or 3, it is characterized in that, when described time control parameter comprise whether allow up duration automatically to adjust parameter time, when then described address pool utility ratio time automatic control module revises the address pool parameter of described address pool time controling administration module storage, specifically for:

If allow up duration automatically to adjust, then the address pool parameter of the described address pool time controling administration module storage of amendment automatically;

If do not allow up duration automatically to adjust, then display needs the corresponding information of pond, modified address parameter or sends warning information.

6. an address pool distribution method, is characterized in that, comprising:

Receive the distributing IP Address requests that user terminal sends, the up duration of the address pool classification that this user terminal is corresponding and this classification address pool is determined according to the address pool parameter of preserving, wherein, address pool parameter comprises: the corresponding relation of address pool classification and user terminal, and the up duration of address pool of all categories;

When determining that current time belongs to the up duration of this classification address pool, from this classification address pool, select an IP address assignment to this user terminal;

Wherein, described method also comprises: pre-configured time control parameter, and monitors the access network situation of each user terminal, obtains the statistics of accessing user terminal to network situation; Whether more described statistics mates with pre-configured time control parameter, and when not mating, revises described address pool parameter.

7. method as claimed in claim 6, is characterized in that, also comprise: when determining that current time does not belong to the up duration of this classification address pool, return IP Address requests failed message.

8. method as claimed in claim 6, it is characterized in that, described time control parameter at least comprises one of following parameter or its combination in any: address pool up duration length, available start-up time, available shut-in time, whether allow that up duration adjusts automatically, address pool utility ratio statistics number, address pool utility ratio ratio higher limit and address pool utility ratio ratio lower limit.

9. method as claimed in claim 6, it is characterized in that, described statistics at least comprises one of following result or its combination in any: the state instruction of user terminal access number of times, turn-on time, access success or access failure.

10. the method as described in claim 6 or 8, is characterized in that, when described time control parameter comprise whether allow up duration automatically to adjust parameter time, then the implementation of the described address pool parameter of described amendment comprises:

If allow up duration automatically to adjust, then automatically revise described address pool parameter;

If do not allow up duration automatically to adjust, then display needs the corresponding information of pond, modified address parameter or sends warning information.