基于Netmap的动态地址分配服务的设计与实现

摘要

随着IP技术由IPv4发展到IPv6,动态地址分配技术也由DHCP升级到DHCPv6和无状态自动配置,目前动态分配 IP 地址主要是通过路由器实现,而市场上支持 IPv6 的路由器价格比较昂贵,一些软件形式的地址分配服务也没有达到足够高的性能.本文旨在研究与实现一个在FreeBSD平台下,基于netmap框架的高性能的地址分配服务器.本文研究的场景是在局域网内,一台FreeBSD通过多网卡与多个客户机进行连接以及通信.本文主要从以下几个方面展开,netmap框架的优势,IPv4地址分配的实现,IPv6地址分配的实现.%As the development of IP technology from IPv4 to the next generation of IPv6,dynamic address allo-cation technology is also upgraded by DHCP to DHCPv6 and stateless autoconfiguration.Dynamically assigned IP ad-dress at present is mainly implemented through a router,and the router supported IPv6 on the market is expensive.Some software in the form of address allocation service did not achieve a high enough performance.The purpose of this paper is to research and implement a high-performance address allocation server,based on the NetMap framework of FreeBSD.In this paper,the scenario we study is within the local area network(LAN).A FreeBSD is conducted through multiple network card connection and communication with multiple clients.This article mainly introduces from the fol-lowing several aspects,the advantages of netmap framework,the realization of the IPv4 address allocation,IPv6 address allocation.