First,in this paper we introduce the current development and main characteristics of IPv6, then we do the summary to the basic knowledge of Ipv6 , mainly explained the address allocation of IPv6, header format and ICMPv6 rudimentary knowledge.

• 本文首先介绍了IPv6技术的发展现状及主要特点,对IPv6协议的基础知识做了概述,重点阐述了IPv6的地址结构,基本数据报格式;