IPv6 address structure and method and device for allocating and tracing same

An allocation method and ipv6 address technology, applied in the field of IPv6 network, can solve the problem of infeasibility of large-scale deployment of mobile IP

Active Publication Date: 2010-05-19
THE RES INST OF TELECOMM TRANSMISSION MIIT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Considering the complexity of implementation, as well as factors such as network switching and forwarding efficiency, it is not feasible to deploy mobile IP on a large scale

Method used

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  • IPv6 address structure and method and device for allocating and tracing same
  • IPv6 address structure and method and device for allocating and tracing same
  • IPv6 address structure and method and device for allocating and tracing same

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Embodiment Construction

[0043] An IPv6 address structure embedded with user information, including a network prefix and an interface identifier, the network prefix is ​​determined by the network to which the host is connected, and the interface identifier is obtained by using an asymmetric encryption algorithm for bits recording user identification information; and , the network prefix or the interface identifier further includes predetermined bits for identifying information such as an encryption algorithm adopted, a type of user identification information, and the like.

[0044] Wherein, the user identification information is unique information based on which the host user information can be determined.

[0045] Preferred embodiments such as figure 2 Shown: is to divide the 128 bits of the IPv6 address into two parts:

[0046] The first 64 bits are the network prefix, which is determined by the network connected to the host;

[0047] The last 64 bits are the interface identification, which is us...

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Abstract

The invention relates to an IPv6 address structure and a method and a device for allocating and tracing the same. The structure comprises a network prefix and an interface identifier, wherein the interface identifier is obtained by calculating bits for recording user identification information with the asymmetrical encryption algorithm; and the network prefix or the interface identifier also comprises pre-defined bits used for identifying the used encryption algorithm, the class of the user identification information and other information. During tracing, enciphered bits in the interface identifier are deciphered by using a private key to obtain the user information. When allocating addresses, the invention adds the user identification information having the identification function, and then finds out the hose corresponding to the source address based on the user identification information during tracing, thereby solving the problem of IPv6 network tracing.

Description

technical field [0001] The invention relates to an IPv6 network, in particular to an IPv6 address structure, an allocation method and device, and a source tracing method and device. Background technique [0002] Compared with the traditional connection-oriented circuit-switching network, the connectionless IP packet network is weaker in network traceability. The main reasons are the following two points: IP packet network only checks the destination address in the process of packet forwarding, according to The destination address is forwarded without checking whether the source address is the real IP address of the sender. The host usually obtains the IP address dynamically, and the same IP address may be assigned to different host terminals, so the IP address cannot be statically bound to the host. [0003] The above reasons lead to a large number of DDoS attacks (Distribution Denial of service, distributed denial of service attacks), spam flooding and other phenomena in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12H04L29/06
Inventor 何宝宏马军锋刘述赵锋田辉曹蓟光徐贵宝蒋晓琳
Owner THE RES INST OF TELECOMM TRANSMISSION MIIT
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