【摘要】 为提高IPv4地址空间利用率,IETF提出无类域间路由CIDR地址结构。分析无分类编址CIDR与分类编址的转换、CIDR工作方式、地址分配方法与标记技术,推导最长地址前缀匹配查找算法。提出基于CIDR的快速计算地址块、网络ID与构建超网方法。研究表明,无分类编址CIDR与分类编址都是基于IPv4地址的分配方法,均可用无分类编址CIDR表示。更多还原

【Abstract】 To improve the utilization ratio of the IPv4 address space,Classless Inter-domain Routing(CIDR)is presented by IETF.This paper carry out an analysis on the conversion between classful network and CIDR,the working way of CIDR,address assignment method,marker technology,and derive the longest prefix match search algorithm.Put forward the method to quickly compute address block which based on CIDR,network ID and supernettting etc.Research shows that CIDR and classful network are both IPv4 addresses allocation methods,and all can be expressed by CIDR.更多还原