Can confirm that it freezes on RB450G too -- last version tried were 5.6 using prebuilt images as well as an own one.

BTW: 5.0rc7 has the RA problem as well.

We had a RB750G running 4.10 doing the invalid argument thing with ether2-5 were slaved. 4.13 fixed it right up for us Unfortunatelly, the problem still exists in 4.16 :( Hmm... perhaps I've to go back to 4.13? AFAIS it is also not related to use of a bridge interface as sometimes guessed in this t...

IMHO, DHCPv6 can't provide router address to the clients. Router must advertise itself. Exactly. The radvd / Router Advertisement Daemon advertises the router address [other routes, rdnss], the prefixes for a network and the information whether the host/node configuration in the network stateless o...

It is not really more complicated to setup an DHCPv6 server than DHCPv4. Especially not, when you've to setup e.g. classless routing using the DHCPv4 server provided on the routeros that is also not able to use the hostname in dns... dnsmasq can do this, ISC dhcp server too ('send-hostname' option i...