IPv6 Hacking – IPv6 enumeration tool. Supports host enumeration, TCP port scanning, and find AAAA IPv6 host record.
You can download it from the following link: https://packetstormsecurity.com/files/download/90790/ipv6hackit-v0.1.tar.gz
Source: https://packetstormsecurity.com/files/90790/IPv6-Hackit-IPv6-Scanning-And-Enumeration-Tool.html