Research on Heuristic IPv6 Address Scan Target Generation Technology Based on Address Structure

IP address scanning is a universal network measurement method used to study network topology and detect network devices. It involves obtaining relevant information about the target network by calling the port service and recording the target's response. This information can be utilized in various fields such as network security analysis and management, network service measurement, vulnerability analysis, network topology analysis, and address analysis. Currently, IPv4 address scanning technology has been well developed. However, compared to the IPv4 address space, IPv6 offers a significantly larger address space and currently has a lower density of active addresses in the address space, making the traversal method used in IPv4 address scanning unsuitable for IPv6 networks. Meanwhile, the scanning efficiency of existing IPv6 scanning target generation methods is relatively low. To address this, we propose a heuristic IPv6 address scanning target generation algorithm based on address structure. This algorithm mainly includes three parts: pre-scan mechanism, IPv6 active address direct push algorithm, and IPv6 active address extension algorithm. Testing experiments using address sets from publicly available data sources as inputs demonstrate that the scanning target address generation algorithm has improved accuracy by over 20% compared to existing methods.