CN106131234A - A kind of method and apparatus distributing address information - Google Patents
A kind of method and apparatus distributing address information Download PDFInfo
- Publication number
- CN106131234A CN106131234A CN201610458164.8A CN201610458164A CN106131234A CN 106131234 A CN106131234 A CN 106131234A CN 201610458164 A CN201610458164 A CN 201610458164A CN 106131234 A CN106131234 A CN 106131234A
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- network address
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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]
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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
- H04L61/09—Mapping addresses
- H04L61/25—Mapping addresses of the same type
- H04L61/2503—Translation of Internet protocol [IP] addresses
- H04L61/2514—Translation of Internet protocol [IP] addresses between local and global IP 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 present invention discloses a kind of method and apparatus distributing address information, and described method includes: receive the request message for asking public network address that client sends；Distribute the first private net address for described client, and according to the private net address of self record and the mapping relations of the first public network address, make described client access public network by described first public network address.By the method it is achieved that multiplexing to the first public network address so that one or more client can access public network according to first public network address, thus save the client consumption to public network address.
Description
Technical field
The present invention relates to communication technical field, particularly to a kind of method and apparatus distributing address information
Background technology
DHCP (Dynamic Host Configuration Protocol, DHCP) is used for as network
Equipment dynamically distributes the network configuration parameters such as IP address.
DHCP uses client/server communication pattern, user end to server file a request and distribute network configuration ginseng
The application of number, server is returned as the configuration informations such as the IP address of client distribution, to realize dynamically joining of the information such as IP address
Put.
When dhcp client and Dynamic Host Configuration Protocol server are in the different physics network segment, client can pass through DHCP relay and service
Device communicates, and obtains IP address and other configuration informations, and the dhcp client on multiple networks can use same DHCP service
Device.
Summary of the invention
The present invention proposes a kind of method distributing address information, is applied in gateway device, and described method includes:
Receive the request message for asking public network address that client sends；
The first private net address is distributed for described client, and according to the private net address of self record and the first public network address
Mapping relations, make described client access public network by described first public network address.
Present invention also offers a kind of device distributing address information, this device is applied in gateway device, described device
Including:
Receiver module, for receiving the request message for asking public network address that client sends；
Processing module, for distributing the first private net address for described client, and according to the private net address of self record with
The mapping relations of the first public network address, make described client access public network by described first public network address.
By foregoing it can be seen that gateway device is client distributes the first private net address, and according to private net address
With the mapping relations of the first public network address, make client according to (wherein, this first public network address and the first private of the first public network address
Net address is corresponding) access public network, it is achieved that the multiplexing to the first public network address so that one or more client is permissible
Access public network according to first public network address, thus save the client consumption to public network address.
Accompanying drawing explanation
A kind of networking schematic diagram that Fig. 1 provides for the embodiment of the present invention.
A kind of schematic flow sheet distributing address information that Fig. 2 provides for the embodiment of the present invention.
Detailed description of the invention
For making the purpose of the present invention, technical scheme and advantage clearer, develop simultaneously embodiment referring to the drawings, right
Scheme of the present invention is described in further detail, it is clear that described embodiment is only a part of embodiment of the present invention,
Rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative labor
The all other embodiments obtained under dynamic premise, broadly fall into the scope of protection of the invention.
Although should be appreciated that in the application possible employing term first, second, third, etc. to describe various information, but this
A little information should not necessarily be limited by these terms.These terms are only used for same type of information is distinguished from each other out.Such as, without departing from
In the case of the application scope, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depend on linguistic context, additionally, the word used " if " can be construed to " ... time " or " when ... "
Or " in response to determining "
As it is shown in figure 1, in the application scenarios of a kind of network, it is provided that a kind of method distributing address information, wherein, should
DHCP client (dhcp client), DHCP relay (DHCP relay), DHCP server (DHCP service is included by scene
Device), wherein, DHCP relay is connected to DHCP client and DHCP server, is used for as DHCP client and DHCP
Server provides relay forwarding work.
In this application scene, when certain client (i.e. DHCP client) needs from Dynamic Host Configuration Protocol server (i.e. DHCP
When server) obtaining public network address, this client can send the request message of acquisition request public network address, and this request message can be first
Send to DHCP relay (hereinafter referred to as gateway device).
After gateway device receives the request message that client sends, the address information of self can be carried in this request
In message, then the request message carrying gateway device address information is sent to Dynamic Host Configuration Protocol server.
After Dynamic Host Configuration Protocol server receives the request message that gateway device sends, the gateway according to carrying in request message sets
Standby address information, obtains the address information with described gateway device and belongs to the public network address of the same network segment, and the institute that will obtain
State public network address and be sent to client by gateway device, so that client accesses public network according to described public network address.
Due to the resource-constrained of the public network address of storage in server, when the address with gateway device of storage in server
During the inadequate resource of the public network address that information belongs to the same network segment, server will not provide public network address, thus cause client
End cannot access outer net because not getting public network address.
In order to solve the problems referred to above, embodiments providing a kind of method distributing address information, the method can be answered
In gateway device, as in figure 2 it is shown, the method includes:
Step 201, receives the request message for asking public network address that client sends.
Step 202, distributes the first private net address for described client, and the private net address and first according to self record is public
The mapping relations of net address, make described client access public network by described first public network address.
In a kind of implementation of the present embodiment, gateway device can basis after receiving the message that client sends
Prerequisite determines whether to send the first private net address for this client, and wherein, this prerequisite can be that judgement receives
Message whether be the request message for asking public network address, or be from Dynamic Host Configuration Protocol server, to obtain public network address,
Wherein, when prerequisite is cannot to obtain public network address from Dynamic Host Configuration Protocol server, specific as follows:
Gateway device, can be according to this request message after receiving the request message that client sends, to DHCP service
Device request public network address, if when described Dynamic Host Configuration Protocol server obtains public network address, then step 202 cannot be performed.
Wherein, it is judged that whether gateway device can be able to include from the method for Dynamic Host Configuration Protocol server acquisition public network address, works as net
Pass equipment is after Dynamic Host Configuration Protocol server request public network address, if not receiving the return information of Dynamic Host Configuration Protocol server, then can determine that can not
Public network address is obtained from Dynamic Host Configuration Protocol server, concrete, intervalometer can be set in gateway device, when gateway device is to DHCP service
After device request public network address, start this intervalometer, when this timer expiry, if not receiving the reply letter that Dynamic Host Configuration Protocol server sends
Breath, it is determined that public network address can not be obtained from Dynamic Host Configuration Protocol server.In the preferred example of another kind, gateway device also can set pre-
If number of times, when gateway device is after Dynamic Host Configuration Protocol server request public network address, and during timer expiry, do not receive Dynamic Host Configuration Protocol server
The return information sent, then gateway device asks public network address to Dynamic Host Configuration Protocol server again, when gateway device is to Dynamic Host Configuration Protocol server
The number of times of request public network address meets or exceeds described preset times, and does not still receive the reply letter that Dynamic Host Configuration Protocol server sends
Breath, it is determined that public network address can not be obtained from Dynamic Host Configuration Protocol server.
In the present embodiment, gateway device have recorded private net address and the mapping relations of the first public network address, wherein, private network
Address can be the address different from the described first public network address network segment being pre-configured in described gateway device.
In the embodiment that the present invention provides, owing to gateway device is for communicating with Dynamic Host Configuration Protocol server (DHCP server)
Address be public network address, therefore, it can be used for gateway device the public network address with server communication as the first public network ground
Location, sets up with the private net address self arranged and maps, and generate private net address and the mapping relations of the first public network address.
Further, described private net address can include that a private net address can also include multiple private net address.
Concrete, when private net address includes a private net address when, described mapping relations are one private network ground
Location and the mapping relations of the first public network address；When private net address includes multiple private net address when, described mapping relations are many
Individual private net address and the mapping relations of the first public network address.If mapping relations are reflecting of multiple private net address and the first public network address
When penetrating relation, outside can supporting that multiple client accesses according to the mapping relations of different private net addresses and the first public network address simultaneously
Net.
Concrete, when the mapping relations that mapping relations are multiple private net address and the first public network address, gateway device can
To be that multiple client distributes the first private net address according to the address allocation rule preset, to ensure that each client can obtain
Unique first private net address, wherein, address allocation rule can include that the size order according to different private net addresses is for difference
Client distributes the first private net address.
Further, the described in step 202. described client that makes accesses public network by described first private net address
Detailed process is as follows:
Step 2021, receives the service message that client sends, and the source address of described service message is described first private network
Address.
Step 2022, according to described mapping relations, described first public network address is replaced described first private net address as
The source address of described service message, and send the service message after replacement.
In step 2021, when gateway device receives the service message of client transmission (below by the industry from client
Business message be referred to as the first message) after, obtain the source address of the first message, when in the mapping relations judge self record exist with
During consistent the first private net address of described source address, perform step 2022.
In step 2022, gateway device obtains first private net address consistent with the source address of described first message, and
According to mapping relations, obtain first public network address corresponding with described first private net address, described first public network address is replaced
Source address in described first message (will described first public network address as the source address of described first message) to public network
Send, thus realize the first private net address access public network that client is distributed according to gateway device.
At a time, when gateway device receives the service message from public network, can as follows by from
The service message of public network is sent to client, specific as follows:
Step 2023, receives the service message from public network, and the destination address of described service message is described first public network
Address.
Step 2024, according to described mapping relations, described first private net address is replaced described first public network address as
The destination address of described service message, and will replace after service message be sent to described client.
In step 2023, gateway device receives the service message from public network (below by the business report from public network
Literary composition is referred to as the second message) after, obtain the destination address of the second message, when the mapping relations judge self record exist and institute
When stating consistent the first public network address of destination address, perform step 2024.
In step 2024, gateway device obtains first public network address consistent with the destination address of described second message,
And according to mapping relations, obtain first private net address corresponding with described first public network address, described first private net address is replaced
Change destination address in described second message (will described first private net address as the destination address of described second message) and
The second message after replacing sends to the client corresponding with destination address (the first private net address).
Accessing public network in order to clearly demonstrate client according to the first private net address, the present embodiment combines actual applied field
Scape, is that client distributes the first private net address to gateway device, and client accesses the mistake of public network according to the first private net address
Journey is described in detail, specific as follows:
Network includes that three clients are respectively Client1, Client2, Client3, and includes gateway device, its
In, the private net address of gateway device record includes: 5.5.5.1,5.5.5.2,5.5.5.3, and gateway device is used for and DHCP
The address (this address is public network address) of server communication is 10.10.1.1,
In certain moment, Client1, Client2, Client3 send the request report of request public network address respectively to gateway device
Literary composition, gateway device receive that above-mentioned 3 clients send after the request message asking public network address, according to different first
The ascending order of private net address is that client distributes the first private net address, for ease of representing, in this example with form
Form embodies client, the first private net address, the first triangular corresponding relation of public network address, as shown in table 1:
Table 1
Subsequent time, when client Client1 needs to send the first message to public network, (this sentences Client1 and lifts
Example illustrates, the process that Client2, Client3 access public network is similar with Client1), Client1 is by the first private net address
5.5.5.1 carry in described first message as source address, and described first message is sent to gateway device.
After gateway device receives the first message that Client1 sends, obtain the source address of described first message
5.5.5.1, because in table 1, private net address exists 5.5.5.1, and the first public network address corresponding to 5.5.5.1 is 10.10.1.1,
Then 10.10.1.1 is replaced the 5.5.5.1 in described first message as new source address by gateway device, first after replacing
Message sends to public network.
Subsequent time, when gateway device receives the second message from public network, obtains the purpose of described second message
Address 10.10.1.1, according to table 1, the destination address of the second message is consistent, then with the first public network address in mapping relations
Illustrate to need, according to mapping relations, this second message is sent to client, again because of according to table 1 understand Client1, Client2,
Client3 is all corresponding with the first public network address, then 5.5.5.1,5.5.5.2,5.5.5.3 can be replaced second by gateway device respectively
The destination address 10.10.1.1 of message, and will replace after the second message be sent respectively to Client1, Client2,
Client3。
By above-described embodiment it can be seen that the gateway device mapping relations by self record, it is achieved that public to first
The multiplexing of net address so that one or more client can access public network according to first public network address, thus
Save the client consumption to public network address.
Further, the gateway device mapping relations by self record, client can be made cannot to obtain DHCP service
In the case of the public network address of device distribution, realize accessing public network according to the first private net address of gateway device distribution, say, that
Can be in the case of not increasing Dynamic Host Configuration Protocol server public network address resource so that when the quantity of client is more than in Dynamic Host Configuration Protocol server public
During net address resource, still can enable the client to access public network.
The invention provides another kind of embodiment, particularly as follows:
Gateway device have recorded private net address, private network mark, the mapping relations of the first public network address, wherein private network mark with
Private net address is unique corresponding, and a private network mark is for representing a private net address.
When gateway device receives the first message from client, (this first message is that client is distributed according to gateway device
The service message that sends to public network of the first private net address, concrete determination methods is illustrated the most in the aforementioned embodiment, because of
This repeats no more), the first public network address is replaced the source address in this first message, and described private network mark is also carried
After in this first message, then the first message is sent to public network.
In certain moment, when gateway device receives the second message from public network, obtain the purpose in this second message
Address and private network mark, if the destination address obtained is the first public network address, but when not getting private network mark, then according to front
State embodiment to carry out processing (embodiment as corresponding with table 1)；If the destination address obtained is the first public network address, and obtains
To private network identify time, then obtain and private network the first private net address corresponding to mark according to described private network mark, and by the of acquisition
One private net address replaces the destination address of the second message (will replace to the first private network ground by the first public network address in the second message
Location), then will replace after the second message according to replace after destination address (the i.e. first private net address) send to and destination address
Corresponding client.
For convenience of description, in conjunction with actual application scenarios, the present embodiment is illustrated, specific as follows:
Network includes that three clients are respectively Client1, Client2, Client3, and includes gateway device, its
In, client, private net address, private network identify, the corresponding relation of the first public network address is as shown in table 2 (because gateway device is client
The process of end distribution the first private net address is identical with the assigning process in previous embodiment, therefore repeats no more).
Table 2
In certain moment, when the first private net address 5.5.5.2 is sent the first message as source address to public network by Client2
Time, source address 5.5.5.2 of this first message is replaced with 10.10.1.1 by gateway device, adds private in the first message simultaneously
Network mark knows B, and will substituted for source address and add the first message transmission of private network mark to public network.
In certain moment, when gateway device receives the second message from public network, obtain the destination of this second message
Location is 10.10.1.1, and gets the private network that the second message carries and be designated B, then gateway device obtains according to private network mark B
The first private net address 5.5.5.2 corresponding with B, and 5.5.5.2 is replaced the destination address 10.10.1.1 of the second message, will replace
The second message after changing sends to the Client2 corresponding for private net address 5.5.5.2 with first.
By above-described embodiment it can be seen that when the gateway device mapping relations by self record, client can be made to exist
In the case of cannot obtaining the public network address of Dynamic Host Configuration Protocol server distribution, realize visiting according to the first private net address of gateway device distribution
Ask public network, further, owing to the present embodiment being identified by private network, when gateway device receives the second message from public network
Time, can determine and private network the first private net address corresponding to mark according to the private network mark carried in the second message, thus can be by the
Two messages are sent to client targetedly.
The invention provides another kind of embodiment is:
In step 202., in the private net address of gateway device record and the mapping relations of the first public network address, the first public network
Address can also be the public network address that other clients are distributed for Dynamic Host Configuration Protocol server, particularly as follows:
Because Dynamic Host Configuration Protocol server is when client distributes public network address, need the message carrying this public network address is passed through gateway
Equipment is sent to client, when therefore gateway device receives the message that Dynamic Host Configuration Protocol server sends, obtains public affairs from described message
Net address, and using the described public network address of acquisition as the first public network address, further, set up the first public network address and private network
The mapping relations of address, following example:
Gateway device have received three the 3rd messages the (the wherein, the 3rd carrying public network address that Dynamic Host Configuration Protocol server sends
Message be Dynamic Host Configuration Protocol server be client distribution public network address time send message, this carry public network address), wherein these three
The public network address carried in 3rd message is respectively as follows: 10.10.1.2,10.10.1.3,10.10.1.4.It should be noted that work as
After gateway device receives above three the 3rd message, record the public network address carried in three the 3rd messages, simultaneously by the 3rd
The client of the forward direction Dynamic Host Configuration Protocol server acquisition request public network address that message is sent to, such as, before Client4, Client5,
Client6 requests public network address to Dynamic Host Configuration Protocol server respectively, and three above-mentioned the 3rd messages be Dynamic Host Configuration Protocol server according to
3rd message of the request feedback of Client4, Client5, Client6, then gateway device record above three public network address, and
Above three the 3rd message is sent respectively to Client4, Client5, Client6 so that Client4, Client5,
Client6 obtains public network address, and the public network address obtained such as Client4 is the public network address that 10.10.1.2, Client5 obtain
The public network address obtained for 10.10.1.3, Client6 is 10.10.1.4.
If first private net address that includes of private network of gateway device storage be respectively 5.5.5.1,5.5.5.2,
5.5.5.3, (gateway device is that client distributes the first private network herein to set up the mapping relations of private net address and the first public network address
The process of address is same as the previously described embodiments, therefore omits, and above three the first private net address is distributed to by default gateway equipment
Client1, Client2, Client3), as shown in table 3:
| Client | First private net address | First public network address |
| Client1 | 5.5.5.1 | 10.10.1.2 |
| Client2 | 5.5.5.2 | 10.10.1.3 |
| Client3 | 5.5.5.3 | 10.10.1.4 |
Table 3
In certain moment, when Client1 sends the first message to public network, (source address of the first message now is
5.5.5.1), this first message can be sent (detailed process for 10.10.1.2 to public network with source address according to table 3 by gateway device
Such as previous embodiment, therefore repeat no more, the process that Client2, Client3 send to public network also with).
Certain moment, when gateway device receives the second message that public network sends, if the purpose got in the second message
When address is 10.10.1.2, (now existence two kinds is possible, and the first is possible, and the purpose client of described second message is for obtaining
The Client4 of public network address 10.10.1.2, the second is possible, and the purpose client of described second message is for obtaining the first private network
The Client1 of address 5.5.5.1), described gateway device this second message can be sent respectively to Client4 and
Client1。
By above-described embodiment it can be seen that gateway device is possible not only to the public network using self to communicate with Dynamic Host Configuration Protocol server
The mapping relations between the first private net address and the first public network address, as the first public network address, are set up in address, make client according to
These mapping relations realize client and utilize the first private net address to access public network, and further, gateway device can also record DHCP
Server be the allocated public network address of other clients as the first public network address, set up the first private net address and the first public network
Mapping relations between address, make client realize client according to these mapping relations and utilize the first private net address to access public network.
In another implementation, gateway device have recorded the mapping pass of private net address, private network mark, the first public network address
System, wherein, the first public network address includes that Dynamic Host Configuration Protocol server is that the allocated public network address of other clients is made, particularly as follows:
Gateway device have recorded the public network address that Dynamic Host Configuration Protocol server distributes to Client4, Client5, Client6, specifically
, the public network address that public network address is 10.10.1.2, Client5 acquisition that Client4 obtains is 10.10.1.3, Client6
The public network address obtained is 10.10.1.4.
The first private net address that the private network of gateway device storage includes is respectively 5.5.5.1,5.5.5.2,5.5.5.3,
Set up private net address, (now default gateway equipment is by above-mentioned with the first triangular mapping relations of public network address for private network mark
Three the first private net addresses distribute to Client1, Client2, Client3), as shown in table 4:
| Client | First private net address | Private network identifies | First public network address |
| Client1 | 5.5.5.1 | A | 10.10.1.2 |
| Client2 | 5.5.5.2 | B | 10.10.1.3 |
| Client3 | 5.5.5.3 | C | 10.10.1.4 |
Table 3
In certain moment, when the first private net address 5.5.5.1 is sent the first message as source address to public network by Client1
Time, source address 5.5.5.1 of this first message is replaced with 10.10.1.2 by gateway device, adds private in the first message simultaneously
Network mark knows A, and will substituted for source address and add the first message transmission of private network mark to public network.
In certain moment, when gateway device receives the second message from public network, obtain the destination of this second message
Location is 10.10.1.2, and gets the private network that the second message carries and be designated A, then gateway device obtains according to private network mark A
The first private net address 5.5.5.1 corresponding with A, and 5.5.5.1 is replaced the destination address 10.10.1.2 of the second message, will replace
The second message after changing sends to the Client1 corresponding for private net address 5.5.5.1 with first.If it should be noted that gateway sets
The destination address of standby the second message received is 10.10.1.2, and does not carries private network mark A, then can determine that the second message
Purpose client be Client4, then this second message is sent to Client4 by gateway device.
By above-described embodiment it can be seen that when the gateway device mapping relations by self record, client can be made to exist
In the case of cannot obtaining the public network address of Dynamic Host Configuration Protocol server distribution, realize visiting according to the first private net address of gateway device distribution
Ask public network, further, owing to the present embodiment being identified by private network, when gateway device receives the second message from public network
Time, can determine and private network the first private net address corresponding to mark according to the private network mark carried in the second message, thus can be by the
Two messages are sent to client targetedly.
Present invention also offers another kind of embodiment, when gateway device is after client distributes the first private net address, described
Gateway device periodically sends detection messages to Dynamic Host Configuration Protocol server, and whether described detection messages is used for detecting in Dynamic Host Configuration Protocol server
Existence can be the public network address of described client distribution, for convenience of illustrating, and reference list 1,
Client Client1, Client2, Client3 ask public network address, net by gateway device to Dynamic Host Configuration Protocol server
Pass equipment finds that Dynamic Host Configuration Protocol server does not distributes public network address to above three client, then gateway device is above three client
Distribute the first private net address, specifically, the first private net address for Client1 distribution is 5.5.5.1, for Client2 distribution
First private net address is 5.5.5.2, and the first private net address for Client3 distribution is 5.5.5.3, and records above-mentioned first private network
Address and the corresponding relation of client.
Next time, gateway device construction itself detection messages, and to Dynamic Host Configuration Protocol server send described detection messages, work as net
Pass equipment determines the public network that there is the free time in Dynamic Host Configuration Protocol server according to Dynamic Host Configuration Protocol server for described detection messages feedack
During address resource, gateway device notice be allocated the first private net address Client1, Client2, Client3 (also dependent on
For the size of the first private net address of above three client distribution, notify the client corresponding with the first maximum private net address
Or the client corresponding to the first private net address of notice and minimum) so that receive the client of described notice again to
Dynamic Host Configuration Protocol server application public network address, after client is from Dynamic Host Configuration Protocol server application to public network address, then uses this public network address
Access public network, and access public network not in use by the first private net address.
By above-described embodiment it can be seen that when the gateway device mapping relations by self record, client can be made to exist
In the case of cannot obtaining the public network address of Dynamic Host Configuration Protocol server distribution, realize visiting according to the first private net address of gateway device distribution
Asking public network, further, whether gateway device, also by detection messages, exists the public network ground of free time in detection Dynamic Host Configuration Protocol server
Location resource, if existing, then notice client is to Dynamic Host Configuration Protocol server application public network address, when applying for after public network address according to these public affairs
Net address accesses public network.
Based on the inventive concept as said method, the embodiment of the present invention also provides for a kind of dress distributing address information
Put, apply on gateway device.This device can be realized by software, it is also possible to by the way of hardware or software and hardware combining
Realize.As a example by implemented in software, as the device on a logical meaning, it is the processor of gateway device by its place,
Computer program instructions corresponding in reading non-volatile storage is formed.For hardware view, except processor, non-easily
Outside the property lost memorizer, gateway device can also include other hardware, such as the forwarding chip of responsible process message, network interface, interior
Deposit；From the point of view of from hardware configuration, this gateway device, it is also possible that distributed apparatus, potentially includes multiple interface card, in order to
Hardware view carries out the extension of Message processing.
The embodiment of the present invention provides a kind of device distributing address information, and this device is applied in gateway device, this device
Including:
Receiver module, for receiving the request message for asking public network address that client sends；
Processing module, for distributing the first private net address for described client, and according to the private net address of self record with
The mapping relations of the first public network address, make described client access public network by described first public network address.
By said apparatus, processing module, according to mapping relations, utilizes private net address to achieve the first public network address
Multiplexing so that one or more client utilizes private net address and the mapping relations of the first public network address, makes above-mentioned visitor
Family end utilizes the first public network address to access public network, thus saves the client consumption to public network address.
Further, described device also includes judge module.
This judge module, being used in described processing module is before described client distributes the first private net address, it is judged that be
No meet prerequisite, when described judge module judges to meet prerequisite, notify that described processing module is described client
End distribution the first private net address.
Further, described prerequisite includes: receive described request message, or cannot be from Dynamic Host Configuration Protocol server
Obtain public network address.
Further, described device also includes detection module.
This detection module, for sending detection messages to Dynamic Host Configuration Protocol server, described detection messages is used for detecting DHCP service
Assignable public network address in device.
Then receiver module, is additionally operable to receive the feedback message that Dynamic Host Configuration Protocol server sends for described detection messages, processes mould
Block, is additionally operable to when determining that in described Dynamic Host Configuration Protocol server, existence can be the public network ground of described client distribution according to described feedback message
During location, notify that described client resends described request message.
Concrete, described receiver module, it is additionally operable to receive the service message that described client sends, described service message
Source address is described first private net address, described processing module, is additionally operable to according to described mapping relations, by described first public network ground
Location, as the source address of described service message, sends this service message.
Or, described receiver module, it is additionally operable to receive the service message from public network, the destination address of described service message
For described first public network address, described processing module, be additionally operable to according to described mapping relations, using described first private net address as
The destination address of described service message, and this service message is sent to described client.
By above-described embodiment it can be seen that the gateway device mapping relations by self record, client can be made in nothing
In the case of method obtains the public network address of Dynamic Host Configuration Protocol server distribution, realize accessing according to the first private net address of gateway device distribution
Public network, say, that can be in the case of not increasing Dynamic Host Configuration Protocol server public network address resource so that when the quantity of client is more than
In Dynamic Host Configuration Protocol server during public network address resource, still can enable the client to access public network.
Through the above description of the embodiments, those skilled in the art is it can be understood that can be by the present invention
Software adds the mode of required general hardware platform and realizes, naturally it is also possible to by hardware, but a lot of in the case of the former is more
Good embodiment.Based on such understanding, prior art is contributed by technical scheme the most in other words
Part can embody with the form of software product, and this computer software product is stored in a storage medium, if including
Dry instruction is with so that a computer equipment (can be personal computer, server, or the network equipment etc.) performs this
Method described in each embodiment bright.It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment,
Module or flow process in accompanying drawing are not necessarily implemented necessary to the present invention.
It will be appreciated by those skilled in the art that the module in the device in embodiment can describe according to embodiment to carry out point
It is distributed in the device of embodiment, it is also possible to carry out respective change and be disposed other than in one or more devices of the present embodiment.On
The module stating embodiment can merge into a module, it is possible to is further split into multiple submodule.The invention described above embodiment
Sequence number, just to describing, does not represent the quality of embodiment.
The several specific embodiments being only the present invention disclosed above, but, the present invention is not limited to this, any ability
What the technical staff in territory can think change all should fall into protection scope of the present invention.
Claims (12)
1. the method distributing address information, it is characterised in that described method is applied in gateway device, described method bag
Include:
Receive the request message for asking public network address that client sends；
The first private net address is distributed for described client, and according to the private net address of self record and the mapping of the first public network address
Relation, makes described client access public network by described first public network address.
2. the method for claim 1, it is characterised in that before distributing the first private net address for described client, also
Including:
When meeting prerequisite, distribute the first private net address for described client.
3. method as claimed in claim 2, it is characterised in that described prerequisite includes:
Receive described request message, or public network address cannot be obtained from Dynamic Host Configuration Protocol server.
4. the method for claim 1, it is characterised in that described method also includes:
Sending detection messages to Dynamic Host Configuration Protocol server, described detection messages is used for detecting assignable public network ground in Dynamic Host Configuration Protocol server
Location；
Receive the feedback message that Dynamic Host Configuration Protocol server sends for described detection messages, determine described DHCP according to described feedback message
Whether server exists can be described client distribution public network address；
If existing, then notify that described client resends described request message.
5. the method as described in Claims 1-4 is arbitrary, it is characterised in that described in make described client by described first public
Net address accesses public network, including:
Receiving the service message that described client sends, the source address of described service message is described first private net address；
According to described mapping relations, using described first public network address as the source address of described service message, and send this business
Message.
6. the method as described in Claims 1-4 is arbitrary, it is characterised in that described in make described client by described first public
Net address accesses public network, including:
Receiving the service message from public network, the destination address of described service message is described first public network address；
According to described mapping relations, using described first private net address as the destination address of described service message, and by this business
Message is sent to described client.
7. the device distributing address information, it is characterised in that described device is applied in gateway device, described device bag
Include:
Receiver module, for receiving the request message for asking public network address that client sends；
Processing module, for distributing the first private net address for described client, and according to the private net address and first of self record
The mapping relations of public network address, make described client access public network by described first public network address.
8. device as claimed in claim 7, it is characterised in that described device also includes: judge module,
Described judge module, being used in described processing module is before described client distributes the first private net address, it may be judged whether
Meet prerequisite；
When described judge module judges to meet prerequisite, notify that described processing module is that described client distribution first is private
Net address.
9. device as claimed in claim 8, it is characterised in that described prerequisite includes:
Receive described request message, or public network address cannot be obtained from Dynamic Host Configuration Protocol server.
10. device as claimed in claim 7, it is characterised in that described device also includes: detection module,
Described detection module, for sending detection messages to Dynamic Host Configuration Protocol server, described detection messages is used for detecting Dynamic Host Configuration Protocol server
In assignable public network address；
Described receiver module, is additionally operable to receive the feedback message that Dynamic Host Configuration Protocol server sends for described detection messages；
Described processing module, is additionally operable to when determining that according to described feedback message existing in described Dynamic Host Configuration Protocol server can be described client
During the public network address that end distributes, notify that described client resends described request message.
11. devices as described in claim 7 to 10 is arbitrary, it is characterised in that described in make described client by described first
Public network address accesses public network, including:
Described receiver module, is additionally operable to receive the service message that described client sends, and the source address of described service message is institute
State the first private net address；
Described processing module, is additionally operable to according to described mapping relations, using described first public network address as described service message
Source address, sends this service message.
12. devices as described in claim 7 to 10 is arbitrary, it is characterised in that described in make described client by described first
Public network address accesses public network, including:
Described receiver module, is additionally operable to receive from the service message of public network, and the destination address of described service message is described the
One public network address；
Described processing module, is additionally operable to according to described mapping relations, using described first private net address as described service message
Destination address, and this service message is sent to described client.
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| CN201610458164.8A CN106131234A (en) | 2016-06-20 | 2016-06-20 | A kind of method and apparatus distributing address information |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111465001A (en) * | 2020-04-01 | 2020-07-28 | 中国联合网络通信集团有限公司 | Registration method and device |
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| CN101060493A (en) * | 2007-05-14 | 2007-10-24 | 中兴通讯股份有限公司 | A method of private network user access the server in a private network through domain name |
| CN101730268A (en) * | 2009-11-27 | 2010-06-09 | 中国电信股份有限公司 | Femto gateway and method and system for mobile terminal to access network resources |
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| CN101060493A (en) * | 2007-05-14 | 2007-10-24 | 中兴通讯股份有限公司 | A method of private network user access the server in a private network through domain name |
| CN101730268A (en) * | 2009-11-27 | 2010-06-09 | 中国电信股份有限公司 | Femto gateway and method and system for mobile terminal to access network resources |
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| CN111465001A (en) * | 2020-04-01 | 2020-07-28 | 中国联合网络通信集团有限公司 | Registration method and device |
| CN111465001B (en) * | 2020-04-01 | 2023-05-02 | 中国联合网络通信集团有限公司 | Registration method and device |
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