IPv6 sub-net range acquisition method and query system

The invention relates to an IPv6 sub-net range acquisition method and a query system, and the IPv6 sub-net range acquisition method comprises the steps: calculating a prefix carry number through the prefix number of an IPv6 address, calculating a shiftable space according to the prefix carry number, determining a sub-net ID character, and comparing the sub-net ID character with the shiftable space to acquire a starting network segment character and an ending network segment character; and the query system comprises an input module, a display module and a calculation module. The method is simple, rapid and easy to understand, loss of computing resources is reduced, the provided query system facilitates management of IP address resources, and cost input of operators is reduced. 本发明涉及一种IPv6子网范围获取方法与查询系统，所述网范围获取方法通过IPv6地址的前缀位数计算前缀进位数，根据前缀进位数计算可移位空间并确定子网ID字符，然后将子网ID字符与可移位空间比较以获取起始网段字符和结束网段字符；所述查询系统包括输入模块、显示模块和计算模块。本发明方法简单快速且易于理解，降低了计算资源的损耗，且提出的查询系统便于IP地址资源的管理，降低了运营商的成本投入。