CN103825971B - Method for generating 4over6 channel dynamically - Google Patents
Method for generating 4over6 channel dynamically Download PDFInfo
- Publication number
- CN103825971B CN103825971B CN201410058981.5A CN201410058981A CN103825971B CN 103825971 B CN103825971 B CN 103825971B CN 201410058981 A CN201410058981 A CN 201410058981A CN 103825971 B CN103825971 B CN 103825971B
- Authority
- CN
- China
- Prior art keywords
- address
- configuration information
- 4over6
- information
- 4over6 tunnel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Provided is a method for generating a 4over6 channel dynamically. The method comprises the steps that a 4over6 channel initiation point TI generates configuration information, and the configuration information comprises an ICP server IPv4 address or prefix information, the uplink interface IPv6 address of the 4over6 channel initiation point TI and a processing mark expressing 'addition' or 'deletion'; the configuration information is sent to a 4over6 channel convergent point TC; the 4over6 channel convergent point TC completes automatic configuration according to the configuration information. The method is suitable for the condition that an IPv6 access network provides access services for a large number of IDC networks, when an IDC network operator deploys the 4over6 transitional technology, the configuration work amount and complexity of the 4over6 channel convergent point TC are greatly reduced, and flexibility and reliability of configuration are improved.
Description
Technical field
The invention belongs to Internet technical field, particularly to a kind of 4over6 tunnel dynamic creation method.
Background technology
Global ipv4 address resource is the allocated totally, and many countries start to put into building of Next Generation Internet ipv6
If.Ipv6 agreement is addressed using 128 bit addresses, and that is, about 3.4 × 1038Individual address, it is approximately that ipv4 address provides
The 7.9 × 10 of amount28Again it may be said that ipv6 has virtually limitless address space.Therefore, ipv6 technology becomes current solution ground
The optimum selection of location resource scarcity, it meets the growing address need of current internet.But, because ipv6 is not right
Ipv4 is backward compatible, and current ipv4 service is in large scale, and ipv6 disposes completely has larger difficulty, ipv4 and ipv6 network will
Coexist in longer period of time, it is the big key technology difficulty that the Internet faces that the whole network is realized seamlessly transitting to ipv6.
4over6 transitional technology can meet ipv4 and ipv6 network coexisted period, cross over ipv6 network and carry out between ipv4 network
The demand being in communication with each other.This technology is in ipv4 network and ipv6 access network intersection deployment 4over6 tunnel initiate point ti
(tunnel initiator), and dispose 4over6 tunnel convergent point tc in ipv6 access network and ipv4 the Internet intersection
(tunnel concentrator), by setting up between 4over6 tunnel initiate point ti and 4over6 tunnel convergent point tc
Ipv4-over-ipv6 tunnel, is completed the encapsulation decapsulation function of message by tunnel initiate point ti, tunnel convergent point tc, realizes
Ipv4 message transmits in ipv6 network.By 4over6 transitional technology, it is mutual with ipv4 that ipv4 network can cross over ipv6 network
Networking or other ipv4 network interconnection intercommunications.
Internet data center idc(internet data center) it is one of the Internet important component part, idc net
Network is to realize the important step that ipv6 makes the overall arrangement for ipv6 transition.When idc access network upgrades to ipv6, idc network can lead to
Cross the 4over6 transitional technology disposed towards idc network, making ipv4 server in idc network cross over ipv6 access network is that ipv4 is mutual
Networking provides application service.
For reducing the change that idc network design is carried out as far as possible, disposing the 4over6 transitional technology towards idc network
When, need 4over6 tunnel initiate point ti is deployed at idc network gateway, and 4over6 tunnel convergent point tc is deployed in
Ipv6 access network gateway.For retaining the publicly-owned address of the configured ipv4 of icp server in idc network, need in 4over6 tunnel
The ipv4 address of icp server and the routing iinformation reaching its address are preserved on road initiate point ti.For making icp server in ipv4
There is in the Internet accessibility, need to issue arrival icp server ipv4 from 4over6 tunnel convergent point tc to ipv4 the Internet
The ipv4 route of publicly-owned address.For generating the 4over6 tunnel between 4over6 tunnel initiate point ti and 4over6 tunnel convergent point tc
Road, needs at 4over6 tunnel initiate point ti, 4over6 tunnel opposite end address configuration to exist for 4over6 tunnel convergent point tc
Ipv6 address in ipv6 access network, and at 4over6 tunnel convergent point tc configure and preserve icp server ipv4 address with
Mapping relations between corresponding 4over6 tunnel initiate point ti ipv6 address.
Because in access network, idc the number networks are various, in large scale, if static state is carried out on 4over6 tunnel convergent point tc
In idc network, between the ipv4 address of icp server and 4over6 tunnel initiate point tiipv6 address, mapping relations etc. configure, work
Measure very huge, and there is disposition flexibility, system robustness.
Content of the invention
In order to overcome the shortcoming of above-mentioned prior art, it is an object of the invention to provide a kind of 4over6 tunnel dynamically generates
Method, has flexible configuration, reliable feature.
In the present invention, network includes the ipv6 access network of idc network and this network connection, and ipv4 the Internet.Equipment
Including the icp server being deployed in idc network, the 4over6 tunnel being deployed in idc network with ipv6 access network junction is sent out
Starting point ti, and it is deployed in the 4over6 tunnel convergent point tc of ipv6 access network and ipv4 the Internet junction.4over6 tunnel
Initiate point ti is the gateway of idc network, is connected by ipv4 with icp server, and by ipv6 access network and 4over6 tunnel
Convergent point tc connects.The publicly-owned address of the configured ipv4 of icp server.The configured ipv4 of 4over6 tunnel initiate point ti downstream interface
Address, upstream Interface configured ipv6 address.The ipv4 address or front of icp server has been preserved on 4over6 tunnel initiate point ti
Sew information.The configured ipv6 address of 4over6 tunnel convergent point tc downstream interface, upstream Interface configured ipv4 address.4over6
Tunnel convergent point tc safeguards an address mapping table, and this table includes some list items, and each list item includes an ipv4 address or front
Sew information and an ipv6 address and its relevant information.
To achieve these goals, the technical solution used in the present invention is:
A kind of 4over6 tunnel dynamic creation method, wherein:
4over6 tunnel initiate point ti generates configuration information, and configuration message includes icp server ipv4 address or prefix letter
Breath, the upstream Interface ipv6 address of 4over6 tunnel initiate point ti and one represent the process labelling of " interpolation " or " deletion "；
Configuration information is sent to 4over6 tunnel convergent point tc；
4over6 tunnel convergent point tc completes address mapping table according to configuration message and automatically configures, and automatic configuration process are such as
Under:
If a) the ipv4 address that configuration message carries or prefix information do not exist in address mapping table, and process and be labeled as
" interpolation ", then be added to a list item, and the ipv4 address that carry configuration message or prefix information are inserted wherein with ipv6 address,
And return success message to 4over6 tunnel initiate point ti, carry complete configuration message in this message, and the information that carries " is added into
Work("；
If b) the ipv4 address that configuration message carries or prefix information do not exist in address mapping table, and process and be labeled as
" deletion ", then do not process to configuration message, and return error messages to 4over6 tunnel initiate point ti, carry in this message
Complete configuration message, and carry information " ipv4 information does not exist "；
If c) the ipv4 address that configuration message carries or prefix information exist in address mapping table, and configuration message is taken
The ipv6 address of band is identical with the ipv6 address of record in list item corresponding in address mapping table, and processes and be labeled as " interpolation ", then
Update corresponding list item, and return success message to 4over6 tunnel initiate point ti, carry complete configuration message in this message, and take
Information " is updated successfully "；
If d) the ipv4 address that configuration message carries or prefix information exist in address mapping table, and configuration message is taken
The ipv6 address of band is identical with the ipv6 address of record in list item corresponding in address mapping table, and processes and be labeled as " deletion ", then
Delete corresponding list item, and return success message to 4over6 tunnel initiate point ti, carry complete configuration message in this message, and take
Information " is deleted successfully "；
If e) the ipv4 address that configuration message carries or prefix information exist in address mapping table, and configuration message is taken
The ipv6 address of band is different from the ipv6 address of record in list item corresponding in address mapping table, and processes and be labeled as " interpolation ", then
Update corresponding list item by the ipv6 address that configuration message carries, and return success message to 4over6 tunnel initiate point ti, this disappears
Carry complete configuration message in breath, and carry information " adding successfully "；
If f) the ipv4 address that configuration message carries or prefix information exist in address mapping table, and configuration message is taken
The ipv6 address of band is different from the ipv6 address of record in list item corresponding in address mapping table, and processes and be labeled as " deletion ", then
Configuration message is not processed, and return error messages to 4over6 tunnel initiate point ti, in this message, carry complete configuration
Message, and carry information " ipv6 information errors ".
After 4over6 tunnel initiate point ti receives the error messages that 4over6 tunnel convergent point tc sends or success message, will
The content record that this message carries is in daily record.
Compared with prior art, the present invention is applied to ipv6 access network provides the situation of access service for a large amount of idc networks,
Make idc Virtual network operator when disposing 4over6 transitional technology, the configuration work amount of 4over6 tunnel convergent point tc and complexity
It is greatly decreased, and improve configuration flexibility and reliability.
Brief description
Fig. 1 is embodiment of the present invention schematic diagram of a scenario.
Fig. 2 is the embodiment of the present invention 1 schematic diagram of a scenario.
Fig. 3 is the embodiment of the present invention 2 schematic diagram of a scenario.
Fig. 4 is that the embodiment of the present invention 2 deletes configuration message processing flow-chart.
Specific embodiment
Describe embodiments of the present invention with reference to the accompanying drawings and examples in detail.
The embodiment of the present invention mainly for scene as shown in Figure 1.This scene comprises following default configuration: (1) icp service
The publicly-owned address of the configured ipv4 of device 1, and using 4over6 tunnel initiate point ti2 downstream interface ipv4 address as its ipv4 net
Close address；(2) the configured ipv4 address of 4over6 tunnel initiate point ti2 downstream interface, configured one of upstream Interface
Ipv6 address, in addition by 4over6 tunnel convergent point tc3 downstream interface ipv6 address configuration be 4over6 tunnel opposite end address,
And preserve icp server ipv4 address or prefix information；(3) configured of 4over6 tunnel convergent point tc3 downstream interface
Ipv6 address, the configured ipv4 address of upstream Interface.
Embodiment 1:4over6 tunnel initiate point ti is that 4over6 tunnel convergent point tc adds configuration information
This scene occurs mainly in and deploys new icp server in idc network, or in idc network, icp server is joined
Put when changing.The present embodiment scene is as shown in Figure 2.The configured ipv4 address of two icp servers in idc network, respectively
For icp server 101ipv4 address 1.2.3.2/24, and icp server 102ipv4 address 1.2.3.3/24.4over6 tunnel
4over6 tunnel convergent point tc3 downstream interface ipv6 address 2001::1/64 is configured to 4over6 tunnel by road initiate point ti2
Opposite end address, and preserve two icp server ipv4 address informations, respectively icp server in icp list of server addresses
101ipv4 address 1.2.3.2/32, and icp server 102ipv4 address 1.2.3.3/32.
After the completion of above-mentioned configuration, 4over6 tunnel initiate point ti2 sends an interpolation to 4over6 tunnel convergent point tc3
Configuration message, is that 4over6 tunnel convergent point tc3 adds configuration.This interpolation configuration message is as shown in table 1, comprising: length is 16
" add_entry " of bit processes labelling, and length is the message length field of 16 bits (with 32 bits for a unit, in figure
This value is 8), length is the 4over6 tunnel initiate point ti2 upstream Interface ipv6 address (being worth for 2001::2) of 128 bits, length
For the icp server 101ipv4 address 1.2.3.2 of 32 bits, length is this address mask of 32 bits, and length is 32 bits
Icp server 102ipv4 address 1.2.3.3, length is this address mask of 32 bits.
Table 1 adds configuration message examples
4over6 tunnel convergent point tc3, after receiving above-mentioned interpolation configuration message, reads process labelling " add_
Entry ", learns and should add record.Read ipv4 address information 1.2.3.2/32,1.2.3.3/32 wherein carrying, root afterwards
According to this information search address mapping table, find no corresponding record.Therefore 4over6 tunnel convergent point tc3 adds in address mapping table
Add the mapping item stating ipv4 address and ipv6 address, as shown in table 2.
| Ipv4 address | Ipv6 address |
| 1.2.3.2/32 | 2001::2 |
| 1.2.3.3/32 | 2001::2 |
Table 2 address mapping table
4over6 tunnel initiate point ti2 also can one by one by icp server 101, icp server 102ipv4 address and its
Upstream Interface ipv6 address combination issues 4over6 tunnel convergent point tc3 in two interpolation configuration message.Now 4over6 tunnel
Road convergent point tc3 can process above-mentioned interpolation configuration message one by one, completes the configuration of Self address mapping table.
Embodiment 2:4over6 tunnel initiate point ti is that 4over6 tunnel convergent point tc deletes configuration information
This scene occurs mainly in idc network and will no longer dispose certain or some icp servers, or operator is no longer
Certain or some icp servers provide access service, or when icp server disposition position changes.The present embodiment scene is such as
Shown in Fig. 3.The configured ipv4 address of two icp servers, respectively icp server 101ipv4 address in idc network
1.2.3.2/24, and icp server 102ipv4 address 1.2.3.3/24.4over6 tunnel initiate point ti2 is by 4over6 tunnel
Road convergent point tc3 downstream interface ipv6 address 2001::1/64 is configured to 4over6 tunnel opposite end address.
In this embodiment, 4over6 tunnel initiate point ti2 place idc network no longer will provide service for server 102, because
Icp server 102ipv4 address 1.2.3.3/ has been deleted in the icp list of server addresses of this 4over6 tunnel initiate point ti2
32, and in the address mapping table of 4over6 tunnel convergent point tc3, yet suffer from icp server 102ipv4 address 1.2.3.3/32
Mapping relations and between the 2001::2/64 of 4over6 tunnel initiate point ti2ipv6 address.Therefore 4over6 tunnel initiate point ti2 needs
To send deletion configuration information to 4over6 tunnel convergent point tc3, notice 4over6 tunnel convergent point tc3 configuration changes.
Above-mentioned deletion configuration message is as shown in table 3, comprising: length is that " del_entry " of 16 bits processes labelling, length
Message length field (with 32 bits for a unit, this value of in figure is 6) for 16 bits, length is the 4over6 of 128 bits
Tunnel initiate point ti2 upstream Interface ipv6 address (being worth for 2001::2), length is the icp server 102ipv4 address of 32 bits
1.2.3.3, length is this address mask of 32 bits.
Configuration message examples deleted by table 3
4over6 tunnel convergent point tc3, after receiving above-mentioned deletion configuration message, reads process labelling " del_
Entry ", learns and should delete configuration information, reads ipv4 address information 1.2.3.3/32 wherein carrying afterwards, according to this information
Search address mapping table, finds there is this record.Carry in continuation reading message after 4over6 tunnel convergent point tc3 afterwards
Ipv6 address 2001::2, finds identical with ipv6 address corresponding in address mapping table, therefore deletes above-mentioned from address mapping table
Ipv4 address and the mapping item of ipv6 address.This processing procedure flow process is as shown in Figure 4.
Above example is only in order to illustrating technical scheme, rather than is limited.Therefore, without departing substantially from this
In the case of the spirit of invention and its essence, those skilled in the art can be variously modified, replace and modification.It will be apparent that but
These change, replacement and modification all should be covered by within the protection domain of the claims in the present invention.
Claims (3)
1. a kind of 4over6 tunnel dynamic creation method is it is characterised in that include:
4over6 tunnel initiate point ti generates configuration information, configuration information include icp server ipv4 address or prefix information,
The upstream Interface ipv6 address of 4over6 tunnel initiate point ti and a process labelling representing " interpolation " or " deletion "；
Configuration information is sent to 4over6 tunnel convergent point tc；
4over6 tunnel convergent point tc completes address mapping table according to configuration information and automatically configures, and automatic configuration process are as follows:
If the ipv4 address that a) configuration information carries or prefix information do not exist in address mapping table, and process and be labeled as " adding
Plus ", then it is added to a list item, the ipv4 address that carry configuration information or prefix information are inserted wherein with ipv6 address, and
Return success message to 4over6 tunnel initiate point ti, in this message, carry complete configuration information, and the information that carries " is added into
Work("；
If the ipv4 address that b) configuration information carries or prefix information do not exist in address mapping table, and process and be labeled as " deleting
Remove ", then configuration information is not processed, and return error messages to 4over6 tunnel initiate point ti, carried in this message
Whole configuration information, and carry information " ipv4 information does not exist "；
If the ipv4 address that c) configuration information carries or prefix information exist in address mapping table, and configuration information carries
Ipv6 address is identical with the ipv6 address of record in list item corresponding in address mapping table, and processes and be labeled as " interpolation ", then update
Corresponding list item, and return success message to 4over6 tunnel initiate point ti, carry complete configuration information in this message, and carry letter
Breath " being updated successfully "；
If the ipv4 address that d) configuration information carries or prefix information exist in address mapping table, and configuration information carries
Ipv6 address is identical with the ipv6 address of record in list item corresponding in address mapping table, and processes and be labeled as " deletion ", then delete
Corresponding list item, and return success message to 4over6 tunnel initiate point ti, carry complete configuration information in this message, and carry letter
Breath " deleting successfully "；
If the ipv4 address that e) configuration information carries or prefix information exist in address mapping table, and configuration information carries
Ipv6 address is different from the ipv6 address of record in list item corresponding in address mapping table, and processes and be labeled as " interpolation ", then by joining
The ipv6 address that confidence breath carries updates corresponding list item, and returns success message to 4over6 tunnel initiate point ti, in this message
Carry complete configuration information, and carry information " adding successfully "；
If the ipv4 address that f) configuration information carries or prefix information exist in address mapping table, and configuration information carries
Ipv6 address is different from the ipv6 address of record in list item corresponding in address mapping table, and processes and be labeled as " deletion ", then not right
Configuration information is processed, and returns error messages to 4over6 tunnel initiate point ti, carries complete configuration information in this message,
And carry information " ipv6 information errors ".
2. 4over6 tunnel dynamic creation method according to claim 1 is it is characterised in that described 4over6 tunnel is initiated
After point ti receives the error messages that described 4over6 tunnel convergent point tc sends or success message, the content that this message is carried is remembered
Record is in daily record.
3. 4over6 tunnel dynamic creation method according to claim 1 is it is characterised in that described 4over6 tunnel converges
Point tc itself configuration include an address mapping table, this table includes some list items, each list item include an ipv4 address or
Prefix information and an ipv6 address and its relevant information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410058981.5A CN103825971B (en) | 2014-02-21 | 2014-02-21 | Method for generating 4over6 channel dynamically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410058981.5A CN103825971B (en) | 2014-02-21 | 2014-02-21 | Method for generating 4over6 channel dynamically |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103825971A CN103825971A (en) | 2014-05-28 |
| CN103825971B true CN103825971B (en) | 2017-01-25 |
Family
ID=50760794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410058981.5A Active CN103825971B (en) | 2014-02-21 | 2014-02-21 | Method for generating 4over6 channel dynamically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103825971B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104852821B (en) * | 2015-06-02 | 2018-01-12 | 清华大学 | A kind of method based on NETCONF protocol configuration 4over6 access network forwarding strategies |
| CN113114801B (en) * | 2021-05-18 | 2022-11-11 | 中国信息通信研究院 | Method, device and equipment for establishing IPv4-in-IPv6 tunnel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1972295A (en) * | 2006-12-01 | 2007-05-30 | 清华大学 | IPv4 over IPv6 extension method of BGP protocol software |
| CN103118145A (en) * | 2013-01-18 | 2013-05-22 | 清华大学 | IPv4-over-IPv6 multi-tunnel automatic establishment method based on DNS (domain name system) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8484666B2 (en) * | 2010-09-13 | 2013-07-09 | Microsoft Corporation | Optimizations for implementing multi-stack stack hosts |
-
2014
- 2014-02-21 CN CN201410058981.5A patent/CN103825971B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1972295A (en) * | 2006-12-01 | 2007-05-30 | 清华大学 | IPv4 over IPv6 extension method of BGP protocol software |
| CN103118145A (en) * | 2013-01-18 | 2013-05-22 | 清华大学 | IPv4-over-IPv6 multi-tunnel automatic establishment method based on DNS (domain name system) |
Non-Patent Citations (1)
| Title |
|---|
| Tunnel-Based IPv6 Transition;Cui Y.,Dong J.,et al;《IEEE Internet Computing》;20130430;第17卷(第2期);62-68 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103825971A (en) | 2014-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102387061B (en) | Method, device and system for accessing VPC (virtual private cloud) to VPN (virtual private network) | |
| CN100372347C (en) | 4 over 6 tunnel packing and depacking method for extending boundary gateway protocol | |
| CN105337881A (en) | Data message processing method, service node and stream guiding point | |
| CN106209557B (en) | Message forwarding method and device | |
| CN105591982A (en) | Message transmission method and device | |
| CN107645431B (en) | Message forwarding method and device | |
| CN103346970B (en) | A kind of SpaceWire dynamic routing implementation method | |
| CN104995902A (en) | Methods and systems for seamless network communication between IPV4 and IPV6 devices | |
| CN105634901A (en) | MAC address information synchronization method and device based on CAS VXLAN | |
| CN104683210A (en) | Automatic tunnel establishing method and device | |
| CN109218200A (en) | A kind of message processing method and device | |
| CN104283891A (en) | Method and device for access of service function node to service link network | |
| CN104247339A (en) | Home network packet delivery | |
| CN104539902A (en) | IPC remote access method and system | |
| CN105099919A (en) | Message processing method and apparatus | |
| CN103825971B (en) | Method for generating 4over6 channel dynamically | |
| CN104579973B (en) | Message forwarding method and device in a kind of Virtual Cluster | |
| CN107147581A (en) | The maintaining method and device of route table items | |
| CN113194033B (en) | Message forwarding method and device based on SDN (software defined network) segment routing networking and storage medium | |
| CN104486217A (en) | Cross network message transmitting method and equipment | |
| CN114765614A (en) | Method for accessing local area network service equipment and electronic equipment | |
| CN108156066B (en) | Message forwarding method and device | |
| CN103986637B (en) | A kind of error message processing method and tunnel device | |
| CN106161666A (en) | Internet protocol the 6th edition IPv6 message processing method and device | |
| CN114827057A (en) | Communication method and communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |