IPv6 with dynamic neighbors don’t run over managed switches with poor support of multicast. For example on ZyXEL ES-2024A you can use IPTV (MVR+drop uknown multicast frame) or IPv6 (flood unknown multicast frame) but no both.
Solution for IPv6 no supporting switches generally can be static IPv6 neighbor. It’s same as static entries in IPv4 ARP.
Does Mikrotik plan Static neigbors support and if yes, when?
Static neighbor = useful feature with lots of potential benefits.
Switch that fails @ IPv6, however… I would get a new switch regardless, instead of pouring 4 quarts of oil into the old beater every Sunday afternoon just to keep it running, yaknow?
Let’s be honest - 5 years ago, Mikrotik was essentially ahead of the curve by having a function IPv6 stack built right into the OS, even if disabled by default. I had to use someone’s patched version of DD-WRT on my Linksys router in order to get v6 wsorking back then (I didn’t have a Mikrotik at home)… but now, IPv6 is much more common, and the IPv6 functionality of ROS is working, but very much no-frills compared to the things it can do in v4.
I’m hoping that ROSv7 is bursting with new v6 functionality.