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IPv6 active address dynamic discovery method

A discovery method and ipv6 address technology, applied in the Internet field, can solve problems such as low speed and low correct rate of static discovery methods, and achieve the effect of improving the correct rate and speed of discovery

Active Publication Date: 2019-06-18
CHANGSHA UNIVERSITY
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AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved in the present invention is to propose a dynamic discovery method for IPv6 active addresses to improve the accuracy and speed of IPv6 address discovery for the problems of low correct rate and low speed of the static discovery method

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Embodiment Construction

[0050] Such as figure 1 Shown, the present invention comprises the following steps:

[0051] Step 1: Use the latest known IPv6 active addresses collected by Gasser et al. as a seed vector, and make this set of known IPv6 active addresses a set G1, and let there be N IPv6 active addresses in G1, where N is a positive integer. The IPv6 addresses in G1 are sorted according to the size of the binary integers of the IPv6 addresses in G1 (either in ascending or descending order), and the sorted binary IPv6 address set G2 is obtained.

[0052] Step 2: Convert the N binary IPv6 addresses in G2 into IPv6 addresses expressed in K-ary, where K is the p power of 2, and p is a positive integer, that is, convert the 128-bit IPv6 address into Use the 128 / p dimensional vector (one dimension is a K-ary digit) to obtain the set G3 of N IPv6 addresses represented by the 128 / p dimensional vector, and the dimension sequence number of each vector in G3 is 1~128 / p, The closer to the dimension num...

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Abstract

The invention discloses an IPV6 active address dynamic discovery method, and aims to solve the problems of relatively low accuracy and relatively low speed of an existing IPV6 active address discoverymethod. According to the technical scheme, an IPv6 address is converted into a High-decimal vector, and a spatial tree is generated by using a top-down split hierarchical clustering method for a vector corresponding to a known active address, that is, a seed vector set. The spatial tree is used to predict the value variability of different dimensions according to the effective address density value of the seed vector after each dimension expansion after the split hierarchical clustering process. A search direction from the leaf node is provided to the root node path. The invention can dynamically adjust the direction based on the real-time scan result and the space tree to quickly obtain the next scan target address on the path where more active addresses are found, so as to improve the accuracy and speed of the active address discovery.

Description

technical field [0001] The invention relates to an IP address discovery method in the Internet field, in particular to a dynamic discovery method for active scanning of IPv6 active addresses. Background technique [0002] As the network layer foundation of the next-generation Internet, IPv6 is accelerating its evolution and development. In 2018, more than 20% of Google users used IPv6 to access its services, and this proportion has doubled unprecedentedly since 2016. The same rule is also the number of IPv6 routes counted from the BGP routing table, which shows that IPv6 The deployment of the network has gradually moved from the backbone of the network to the edge. It is estimated that by 2019, the number of IPv6 prefixes will reach 25% to 50% of the number of IPv4 prefixes, and IPv6 traffic will become an important part of the Internet. The huge address scale and convenient address configuration method have laid a good foundation for the development of the Internet in the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12
Inventor 朱培栋熊荫乔刘知竹王平崔鹏帅郑昱冯璐
Owner CHANGSHA UNIVERSITY
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