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IPv6 Alias ​​Prefix Detection Method Based on Shard Fingerprint

A technology of fragmented fingerprints and detection methods, applied in transmission systems, electrical components, etc., can solve the problems of alias prefix detection failure, inability to effectively characterize alias prefix characteristics, and fuzzy and challenging fingerprint technology.

Active Publication Date: 2021-09-07
TSINGHUA UNIV
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Problems solved by technology

However, the proposed fingerprinting technique is an ambiguous and challenging technique, which cannot effectively characterize the characteristics of alias prefixes, and is only a side verification of the detection results.
At the same time, with the advancement of IPv6 address deployment, the smaller the prefix space, each address in the entire prefix space (such as / 124) is assigned to a different host, resulting in the failure of probability-based alias prefix detection; Liu et al. Large-scale alias detection technology in , to avoid unnecessary scanning of the detected alias area and improve discovery efficiency, this method also has the defect of multi-level alias detection algorithm

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  • IPv6 Alias ​​Prefix Detection Method Based on Shard Fingerprint

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Embodiment Construction

[0015] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0016] Such as figure 1 As shown, the method for detecting IPv6 alias prefixes based on fragment fingerprints according to the embodiment of the present invention is described below.

[0017] Such as figure 1 As shown, the IPv6 alias prefix detection method based on the fragmentation fingerprint according to the embodiment of the present invention comprises the following steps:

[0018] Step 1: Generate a pseudo-random address set. Multiple pseudo-random addresses are generated in the target prefix space, and the multiple pseudo-rando...

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Abstract

The invention discloses an IPv6 alias prefix detection method based on fragmentation fingerprints, comprising the following steps: generating multiple pseudo-random addresses in a target prefix space; judging that the target prefix is ​​an active prefix; judging that multiple pseudo-random addresses and active prefixes are configured on the same host, thus identifying the active prefix as an alias prefix. This detection method can effectively discover network hosts, reduce the cost of network detection, and provide more effective data support for network measurement, network mapping and security research.

Description

technical field [0001] The invention relates to the technical field of IPv6 alias prefix detection, in particular to a fragment fingerprint-based IPv6 alias prefix detection method. Background technique [0002] Alias ​​detection is based on the following experience: under a non-alias prefix, the event that all randomly generated IPv6 addresses are active is a small probability event. The usual method is: first select an address prefix of a specific length, then generate a certain number of IPv6 addresses under the prefix for detection, and perform alias judgment based on the active number of detection addresses. Murdock et al. randomly generated 3 addresses in the space of 96 prefixes, and sent three probe packets to each address. If replies from three random addresses were received, the prefix was determined as an alias prefix. This method only detects prefixes with a length of 96, and the space is limited; at the same time, randomly generated addresses may be distributed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/12
CPCH04L61/30H04L2101/30H04L2101/659
Inventor 杨家海宋光磊何林王之梁
Owner TSINGHUA UNIV
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