Research And Implementation Of Domestic Ipv6 Geolocation

With the mature development of the Internet of Things,big data and other technologies,IPv6 geolocation has broad prospects in application and plays an important role in many fields.At present,IPv6 geolocation research uses the IPv4 geolocation method,and the accuracy is at the national level.How to improve the positioning algorithm is of great significance to improve the accuracy of IPv6 geographical location.Considering two perspectives of IPv6 address:allocation and use,this thesis proposes a geolocation strategy for domestic IPv6 addresses,and designs and implements a domestic IPv6 geolocation system.This system provides search and geolocation services for various domestic IPv6 addresses,and visualize geolocation results on the website.The work of this thesis consists of two parts.First of all,this paper proposes a geolocation strategy for domestic IPv6 addresses,which includes an algorithm for extracting and analyzing geographic information from APNIC Whois database and an improved application based on the Constraint-Based Geolocation(CBG)algorithm.The former analyzes more geographical attributes based on APNIC registration information,and obtains a finer-grained geographic location of IPv6 prefixes.The latter improves CBG algorithm in three ways:selecting and collecting domestic data sets,expansing polygon vertex sets,and modeling of bestline for different network segments,which cover the shortage of CBG algorithms for domestic IPv6 geolocation.Secondly,based on the geolocation strategy mentioned above,this paper designs and implements a domestic IPv6 geolocation system.The system actively collects domestic IPv6 datasets and executes IPv6 data to build a domestic IPv6 geolocation database at first.Then based on this geolocation database,the system develops a client-side query platform,and finally implements a complete domestic IPv6 geolocation function.By using this system for domestic IPv6 geolocation,it shows a significant improvement in domestic IPv6 address geolocation precision(from national level to provincial level).The improvement rate of inactive IPv6 address can reach 77.41%and the active IPv6 address has the improvement rate of 56.06%.