Study on Security Vulnerability of IPv6
IPv6安全脆弱性研究

IPv6,the key protocol of the controllable,trustable and scalable next generation network,has evolved from experimental phrase to real-live application phase.Because IPv6 mandates the inclusion of IPSec,it is taken for granted that IPv6 is more secure than IPv4.In the reality,however,IPv6 is usually deployed without cryptographic protections of any kind.The security of IPv6 without IPSec, especially the security in the transition phase and the native security of IPv6,is worth stu-dying.This paper mainly studied the vulnerability of IPv6 without IPSec.Firstly,the attacks and vulnerabilities in IPv6 network were classified and described in general.Then,the vulnerability in the transition stage and the native vulnerability of IPv6 were discussed in detail as a separated part respectively.Some suggestions for defending against the threats or reinforcing the system were given.