This document provides an overview of IPv6 security that is specifically aimed at IPv4 engineers and operators. Rather than describing IPv6 in an isolated manner, it aims to re-use as much of the existing IPv4 knowledge and experience as possible. It highlights the security issues that affect both protocols in the same manner, as well as those that are new or different for the IPv6 protocol suite. Additionally, it discusses the security implications arising from the co-existence of the IPv6 and IPv4 protocols.
You can download it from the following link: https://packetstormsecurity.com/files/download/152095/deploy360-ipv6-security-v1.0.pdf
Source: https://packetstormsecurity.com/files/152095/IPv6-Security-For-IPv4-Engineers.html