the famous ipv6 christmas tree is back ! Powered by mikrotik ...
http://jinglepings.com/
Does not replay on ping and traceroute !
If you're wondering how it works, make sure to watch the MUM video at http://mum.mikrotik.com/2016/NL/agenda
Mine was called "Category based firewalling on RouterOS, the colorful way" but they are all worth watching
If you're interested, links to the source code used in the talk are provided in the slides.