Method and device for tracing address source

An address and MAC address technology, applied in the field of address traceability methods and devices, can solve problems such as inability to determine user equipment

Inactive Publication Date: 2015-02-04
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present invention provides an address traceability method and device, which solves the problem that the sp...

Method used

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  • Method and device for tracing address source
  • Method and device for tracing address source
  • Method and device for tracing address source

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0041] figure 1 It is a schematic structural diagram of the network system provided by the embodiment of the present invention. see figure 1 , the network system includes a core router 101, a NAT64 device 102 connected to the core router 101, a log server 103 connected to the NAT64 network element device 102, a BRAS 104 connected to the core router 101, and a source tracing device connected to the log server 103 Device 105, AAA server 106 respectively connected to BRAS 104, log server 103 and source tracing device 105, routing type home gateway device 107 connected to BRAS 104, and one or more user devices 108 connected to routing type home gateway device 107 .

[0042] figure 2 It is a schematic flow chart of user traceability provided by the embodiment of the present invention. see figure 2 , the method includes:

[0043] S101. The AAA server receives a traceability request from a first user.

[0044] The first user traceability request includes at least the source ...

Embodiment 2

[0058] An embodiment of the present invention provides an address traceability method, such as image 3 shown, including:

[0059] S201. The log server receives a user traceability request sent by the traceability device.

[0060] Wherein, the user traceability request includes at least a public IPv4 address.

[0061] The address traceability method provided by the embodiment of the present invention adds a log server to the NAT64 network element device. The log server is used to collect address translation information from the NAT64 network element device when the user device accesses the network, and convert the address according to the collected address. information to generate user access logs.

[0062] Specifically, the security supervision department traces the address source of the user equipment through the public IPv4 address, so that the log server can receive the user source trace request sent by the source trace device, and the user source trace request includes ...

Embodiment 3

[0075] An embodiment of the present invention provides an address traceability method, such as Figure 4 shown, including:

[0076] S301. When an IPv6 user accesses an IPv4 application, the log server generates a user access log.

[0077] When an IPv6 user accesses an IPv4 application, the NAT64 network element device will record the address translation information of each user. Specifically, when an IPv6 user accesses an IPv4 application, the NAT64 network element device records the address translation information, and the log server collects the address translation information from the NAT64 network element device, and generates a user access log based on the collected address translation information. The access log is used to query user address information, and the user access log includes at least a public IPv4 address, a port number and a source IPv6 address.

[0078] S302. The BRAS sends the MAC address and source IPv6 address of the user equipment to the AAA server. ...

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Abstract

The invention provides a method and a device for tracing an address source, relates to the field of network management and aims at solving the problem that a specific user device cannot be determined during the address source tracing of the user device in the NAT64 transition technology. The method comprises receiving a first user source tracing request which comprises at least a source IPv6 address, looking up a user information mapping table according to the IPv6 address and determining the user device information corresponding to the IPv6 address, and finally, sending the user device information to a source tracing device, wherein the user information mapping table corresponds to the user device information and the IPv6 address, and the user device information comprises at least the MAC address of the user device, Framed-IPv6-Prefix and Delegated-IPv6-Prefix.

Description

technical field [0001] The invention relates to the field of network management, in particular to an address tracing method and device. Background technique [0002] During the transition from IPv4 (Internet Protocol Version 4, Internet Protocol Version 4) to IPv6 (Internet Protocol Version 6, Internet Protocol Version 6), in order to enable IPv6 users to access IPv4 applications, NAT64 (Network Address Trans lation from IPv6 to IPv4, network address translation) technology. [0003] NAT64 technology introduces a new network element NAT64 network element device in the network, which stores the mapping information between the source IPv6 address (generated based on Delegated-IPv6-Prefix) and the public IPv4 address of the user equipment. When the user accesses the network via the routing mode, the home gateway device initiates a connection request to the BRAS (Broadband Remote Access Server, Broadband Remote Access Server), and the BRAS assigns Framed-IPv6-Prefix and Delegat...

Claims

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Application Information

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IPC IPC(8): H04L29/12H04L29/06
CPCH04L61/251
Inventor 刘雨涵周光涛傅承鹏
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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