CN112565053A - Method, device, service system and storage medium for identifying private network user - Google Patents

Method, device, service system and storage medium for identifying private network user Download PDF

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Publication number
CN112565053A
CN112565053A CN202011381779.8A CN202011381779A CN112565053A CN 112565053 A CN112565053 A CN 112565053A CN 202011381779 A CN202011381779 A CN 202011381779A CN 112565053 A CN112565053 A CN 112565053A
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private network
vxlan
user terminal
vni
address
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CN202011381779.8A
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CN112565053B (en
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黄华桥
曾伟
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Wuhan Greenet Information Service Co Ltd
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Wuhan Greenet Information Service Co Ltd
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Priority to PCT/CN2021/131449 priority patent/WO2022116850A1/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46Interconnection of networks
    • H04L12/4641Virtual LANs, VLANs, e.g. virtual private networks [VPN]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46Interconnection of networks
    • H04L12/4633Interconnection of networks using encapsulation techniques, e.g. tunneling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/22Parsing or analysis of headers

Abstract

The invention relates to a method, a device, a service system and a storage medium for identifying private network users, wherein the method comprises the following steps: receiving a VXLAN message sent by a user terminal; decapsulating the VXLAN message to obtain an original message of the VXLAN message; analyzing the private network IP address of the user terminal from the original message; inquiring a preset VNI and private network IP address mapping table to obtain mapping information of a private network IP address of the user terminal and the VNI of the user terminal; and uniquely identifying the user terminal according to the mapping information and outputting an identification result. Therefore, the invention can accurately identify the private network users and is beneficial to counting the user traffic.

Description

Method, device, service system and storage medium for identifying private network user
Technical Field
The invention relates to the technical field of virtual extended local area networks, in particular to a method, a device, a service system and a storage medium for identifying private network users.
Background
VXLAN (Virtual eXtensible Local Area Network) is a Network virtualization technology, and can well solve the problem that the existing VLAN technology cannot meet the requirements of a large two-layer Network.
The main principle of VXLAN technology is to introduce an outer VXLAN tunnel in UDP format as a data link layer, and the original data message content is transmitted as a tunnel Payload (Payload). Because the outer layer adopts UDP as transmission means, payload data can be easily transmitted in a two-layer network and a three-layer network. Both ends of the VXLAN Tunnel are VTEP (VXLAN Tunnel Endpoints) devices, such as DCSW (data switching center), where the related processing of VXLAN messages is performed.
Referring to fig. 1, the VXLAN message structure includes two parts, original message and VXLAN encapsulation. Wherein, the original message comprises a payload, an internal IP Header (INNER IP Header) and an internal Ethernet Header (INNEREthemet Header); the VXLAN encapsulation includes a VXLAN Header (VXLAN Header), an Outer UDP Header (Outer UDP Header), an Outer IP Header (Outer IP Header), and an Outer ethernet Header (Outer ethernet Header), and the VXLAN Header has a VNI (VXLAN Network Identifier) therein. The outer IP header and the outer UDP header are the basis for mutual communication between the VTEP devices, enabling VXALN messages to be transmitted over the underlying network. After receiving the VXLAN message, the VTEP device removes the outer IP header and the outer UDP header, and then processes the logic of VXLAN according to the VXLAN header, and mainly sends the VXLAN to a final Virtual Machine (also referred to as VM) according to the VNI, and the Virtual Machine reads the original message.
The virtual machine can be used as a user terminal or a server. Taking a source end as a user terminal and a destination end as a server as an example, the server receives an original message without VNI, and although a private network IP address of the user terminal can be obtained by analyzing the original message, since the user terminals on different private networks can use the same private network IP address, that is, the private network IP addresses are not unique, the server cannot determine a unique user terminal.
Because a unique user terminal cannot be determined, the user traffic source cannot be accurately counted, and thus sufficient technical support cannot be provided for the traffic economy which is rapidly developing at present. Therefore, a technical solution capable of identifying the user terminal based on the VXLAN technology is required.
Disclosure of Invention
The invention aims to disclose a method capable of accurately identifying private network users.
Specifically, the invention discloses a method for identifying a private network user, which comprises the following steps:
receiving a VXLAN message sent by a user terminal;
carrying out VXLAN decapsulation on the VXLAN message to obtain an original message of the VXLAN message;
analyzing the private network IP address of the user terminal from the original message;
inquiring a preset VNI and private network IP address mapping table to obtain mapping information of a private network IP address of the user terminal and the VNI of the user terminal;
and uniquely identifying the user terminal according to the mapping information and outputting an identification result.
Further, the step of receiving the VXLAN message sent by the user terminal specifically includes: receiving a VXLAN message sent by a user terminal from a public network, wherein the steps also comprise the following steps:
presetting a VNI and private network IP address mapping table;
distributing corresponding VNIs for user terminals accessed to a public network according to a preset VNI and private network IP address mapping table;
and carrying out VXLAN encapsulation on an original message sent by the user terminal from the private network according to the VNI of the original message to form a VXLAN message and forwarding the VXLAN message to the public network.
Furthermore, each user terminal accessing to the public network includes a user terminal accessing to the network in the home broadband service.
Further, the step of uniquely identifying the user terminal according to the mapping information and outputting the identification result includes: and counting the user flow source according to the uniquely identified user terminal.
Further, the structure of the VXLAN message sequentially comprises VXLAN encapsulation and an original message from outside to inside; the VXLAN packaging structure sequentially comprises an outer Ethernet head, an outer IP head, an outer UDP head and a VXLAN head from outside to inside; the structure of the original message sequentially comprises an internal Ethernet header, an internal IP header and a payload from outside to inside; the internal IP header has a private network IP address of the user terminal.
The invention also correspondingly discloses a device for identifying the private network user, which comprises a VXLAN message receiving module, a VXLAN decapsulation module, a private network IP address analysis module, a mapping table query module and a result output module; wherein:
VXLAN message receiving module: receiving a VXLAN message sent by a user terminal;
VXLAN decapsulation module: carrying out VXLAN decapsulation on the VXLAN message to obtain an original message of the VXLAN message;
private network IP address analysis module: analyzing the private network IP address of the user terminal from the original message;
a mapping information query module: inquiring a preset VNI and private network IP address mapping table to obtain mapping information of a private network IP address of the user terminal and the VNI of the user terminal;
a result output module: and uniquely identifying the user terminal according to the mapping information and outputting an identification result.
Further, the system also comprises a mapping table module, a VNI management module and a VXLAN encapsulation module; wherein:
a mapping table module: presetting a VNI and private network IP address mapping table;
a VNI management module: distributing corresponding VNIs for user terminals accessed to a public network according to a preset VNI and private network IP address mapping table;
VXLAN encapsulation module: and carrying out VXLAN encapsulation on an original message sent by the user terminal from the private network according to the VNI of the original message to form a VXLAN message and forwarding the VXLAN message to the public network.
Further, the apparatus is located on an access service system of a communication carrier.
The invention also correspondingly discloses a service system, which is characterized by comprising the following components:
one or more processors;
a memory; and
one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement any of the above-described methods of identifying a user of a private network.
The invention also discloses a computer readable storage medium having stored thereon a computer program to be loaded by a processor for performing the steps of the method of identifying a private network user according to any one of claims 1 to 5.
The invention has at least the following beneficial effects:
(1) the invention carries out VXLAN decapsulation, private network IP address analysis and preset VNI and private network IP address mapping table query on VXLAN messages sent by the user terminal in sequence, and uniquely identifies the user terminal according to mapping information, namely, can determine a unique user terminal, thereby realizing accurate identification of the user terminal;
(2) the invention can accurately identify the user terminal, thereby accurately counting the user flow source, promoting the flow economy and being beneficial to improving the economic benefit.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram of a VXLAN message structure;
FIG. 2 is a flowchart illustrating a method for identifying a user of a private network according to an embodiment of the disclosure;
FIG. 3 is a flowchart of a method for identifying a user of a private network according to the second embodiment;
FIG. 4 is a block diagram of an apparatus for identifying a user of a private network according to the third embodiment;
fig. 5 is a block diagram of an apparatus for identifying a user of a private network according to the fourth embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 2, the method for identifying a private network user disclosed in this embodiment mainly includes the following steps R10-R50 (only the destination performs the method):
r10: and receiving a VXLAN message sent by the user terminal.
Step R10 is receiving a VXLAN packet from a user terminal from a public network, where the VXLAN packet structure may refer to fig. 1, that is, it sequentially includes a VXLAN encapsulation and an original packet from outside to inside; the VXLAN packaging structure sequentially comprises an outer Ethernet head, an outer IP head, an outer UDP head and a VXLAN head from outside to inside; the structure of the original message sequentially comprises an internal Ethernet header, an internal IP header and a payload from outside to inside; the inner IP header has the private network IP address of the user terminal.
R20: and carrying out VXLAN decapsulation on the VXLAN message to obtain an original message of the VXLAN message.
According to the structure of the VXLAN packet shown in fig. 1, the VXLAN decapsulation refers to removing the outer ethernet header, the outer IP header, the outer UDP header, and the VXLAN header, and only retaining the original packet including the inner ethernet header, the inner IP header, and the payload.
R30: and analyzing the private network IP address of the user terminal from the original message.
Because the user terminals in different private networks can use the same private network IP address, the user terminal cannot be uniquely determined only by the analyzed private network IP address.
R40: and inquiring a preset VNI and private network IP address mapping table to obtain the private network IP address of the user terminal and the mapping information of the VNI of the user terminal.
The form of the VNI and private network IP address mapping table may refer to an existing MAC address and private network IP address mapping table. The difference is that the mapping table of the MAC address and the private network IP address stores the mapping information of the physical address and the private network IP address, and the mapping table of the VNI and the private network IP address stores the mapping information of the VNI and the private network IP address.
R50: and uniquely identifying the user terminal according to the mapping information and outputting an identification result.
The VNI of the user terminal has uniqueness on the accessed public network, and the private network IP address of the user terminal has uniqueness on the accessed private network, so that the user terminal can be uniquely identified according to the mapping information and the mapping information is output.
And, the user traffic source can be further counted according to the uniquely identified user terminal.
Thus, the present embodiment has at least the following beneficial effects:
(1) the user terminal is uniquely identified according to the mapping information by sequentially carrying out VXLAN decapsulation, private network IP address analysis and query of a preset VNI and private network IP address mapping table on a VXLAN message sent by the user terminal, namely, a unique user terminal can be determined, so that the user terminal is accurately identified;
(2) the method can accurately identify the user terminal, thereby accurately counting the user flow source, promoting the flow economy and contributing to improving the economic benefit.
Example two
Referring to fig. 3, the method for identifying a private network user disclosed in this embodiment includes, in addition to steps R10-R50 (destination executing method) of the first embodiment, the following steps S10-S30 (source executing method) before step R10:
s10: and presetting a mapping table of the VNI and the private network IP address.
The preset VNI and private network IP address mapping table may refer to an existing setting MAC address and private network IP address mapping table.
S20: and distributing corresponding VNIs for each user terminal accessed to the public network according to a preset VNI and private network IP address mapping table.
Wherein, each user terminal accessed to the public network comprises a user terminal accessed to the network in the family broadband service.
S30: and carrying out VXLAN encapsulation on an original message sent by the user terminal from the private network according to the VNI of the original message to form a VXLAN message and forwarding the VXLAN message to the public network.
EXAMPLE III
Referring to fig. 4, the present embodiment discloses a device for identifying a private network user, which can be specifically located on an access service system of a communication operator, and includes a VXLAN message receiving module 21, a VXLAN decapsulating module 22, a private network IP address parsing module 23, a mapping table querying module 24, and a result outputting module 25; wherein:
VXLAN message receiving module 21: and receiving a VXLAN message sent by the user terminal.
VXLAN decapsulation module 22: and carrying out VXLAN decapsulation on the VXLAN message to obtain an original message of the VXLAN message.
The private network IP address resolution module 23: analyzing the private network IP address of the user terminal from the original message;
the mapping information query module 24: and inquiring a preset VNI and private network IP address mapping table to obtain the private network IP address of the user terminal and the mapping information of the VNI of the user terminal.
The result output module 25: and uniquely identifying the user terminal according to the mapping information and outputting an identification result.
Each functional module of the third embodiment corresponds to each step of the first embodiment, and can be understood with reference to the third embodiment, and the third embodiment has the beneficial effects of the first embodiment.
Example four
Referring to fig. 5, the present embodiment discloses a device for identifying a private network user, which includes the functional modules of the third embodiment, and further includes a mapping table module 11, a VNI management module 12, and a VXLAN encapsulation module 13;
wherein:
the mapping table module 11: and presetting a mapping table of the VNI and the private network IP address.
The VNI management module 12: and distributing corresponding VNIs for each user terminal accessed to the public network according to a preset VNI and private network IP address mapping table.
VXLAN encapsulation module 13: and carrying out VXLAN encapsulation on an original message sent by the user terminal from the private network according to the VNI of the original message to form a VXLAN message and forwarding the VXLAN message to the public network.
Each functional module of the fourth embodiment corresponds to each step of the second embodiment, and can be understood with reference to the second embodiment and the fourth embodiment, and the fourth embodiment has the beneficial effects of the second embodiment.
Based on the above detailed description of the method for identifying a private network user, it can be understood that the method for identifying a private network user can be embodied as a service system as an execution carrier. The service system comprises one or more processors, a memory, and one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement the method of identifying a private network user of any of the above aspects. Moreover, the processor can be a single-core processor, a multi-core processor or any processor which realizes multiple nodes and/or multiple threads; the memory includes, but is not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
In another embodiment, the method for identifying a private network user may also be carried by a computer-readable storage medium only. The specific scheme is as follows: a computer-readable storage medium having stored thereon a computer program which is loaded by a processor for performing the steps of the above-mentioned method of identifying a private network user. Also, the computer-readable storage medium includes, but is not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The foregoing has outlined only some of the details of the present invention in order that the present method and its core concepts may be better understood; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims (10)

1. A method of identifying a private network user, comprising the steps of:
receiving a VXLAN message sent by a user terminal;
decapsulating the VXLAN message to obtain an original message of the VXLAN message;
analyzing the private network IP address of the user terminal from the original message;
inquiring a preset VNI and private network IP address mapping table to obtain mapping information of a private network IP address of the user terminal and the VNI of the user terminal;
and uniquely identifying the user terminal according to the mapping information and outputting an identification result.
2. The method according to claim 1, wherein the step of receiving the VXLAN message from the user terminal is specifically: receiving a VXLAN message sent by a user terminal from a public network, wherein the steps also comprise the following steps:
presetting a VNI and private network IP address mapping table;
distributing corresponding VNIs for user terminals accessed to a public network according to a preset VNI and private network IP address mapping table;
and carrying out VXLAN encapsulation on an original message sent by the user terminal from the private network according to the VNI of the original message to form a VXLAN message and forwarding the VXLAN message to the public network.
3. The method of claim 2, wherein the user terminals accessing the public network comprise user terminals accessing the network in a home broadband service.
4. The method of identifying a private network user according to claim 3, wherein the step of uniquely identifying said user terminal based on said mapping information and outputting an identification result is followed by the step of: and counting the user flow source according to the uniquely identified user terminal.
5. The method for identifying a private network subscriber according to any one of claims 1-4, wherein the structure of the VXLAN message comprises VXLAN encapsulation and an original message in sequence from outside to inside; the VXLAN packaging structure sequentially comprises an outer Ethernet head, an outer IP head, an outer UDP head and a VXLAN head from outside to inside; the structure of the original message sequentially comprises an internal Ethernet header, an internal IP header and a payload from outside to inside; the internal IP header has a private network IP address of the user terminal.
6. A device for identifying private network users is characterized by comprising a VXLAN message receiving module, a VXLAN decapsulation module, a private network IP address analysis module, a mapping table query module and a result output module; wherein:
VXLAN message receiving module: receiving a VXLAN message sent by a user terminal;
VXLAN decapsulation module: decapsulating the VXLAN message to obtain an original message of the VXLAN message;
private network IP address analysis module: analyzing the private network IP address of the user terminal from the original message;
a mapping information query module: inquiring a preset VNI and private network IP address mapping table to obtain mapping information of a private network IP address of the user terminal and the VNI of the user terminal;
a result output module: and uniquely identifying the user terminal according to the mapping information and outputting an identification result.
7. The apparatus for identifying a private network subscriber of claim 6, further comprising a mapping table module, a VNI management module, a VXLAN encapsulation module; wherein:
a mapping table module: presetting a VNI and private network IP address mapping table;
a VNI management module: distributing corresponding VNIs for user terminals accessed to a public network according to a preset VNI and private network IP address mapping table;
VXLAN encapsulation module: and carrying out VXLAN encapsulation on an original message sent by the user terminal from the private network according to the VNI of the original message to form a VXLAN message and forwarding the VXLAN message to the public network.
8. An arrangement for identifying users of a private network according to claim 6 or 7, characterized in that the arrangement is located on an access service system of a communication carrier.
9. A service system, characterized in that the service system comprises:
one or more processors;
a memory; and
one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement the method of identifying a private network user of any of claims 1-5.
10. A computer-readable storage medium, having stored thereon a computer program which is loaded by a processor to perform the steps of the method of identifying a user of a private network of any one of claims 1 to 5.
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