Has anyone tried to issue an IPv6 address via l2tp from Mikrotik on MacOS or iOS?

Question

iOS

Good afternoon!
I am unable to issue an IPv6 address to clients (MacOS and iOS) when connecting via l2tp+ipsec to Mikrotik.
DHCPv6 and pool configured on Mikrotik. When a client connects to Mikrotik, it can be seen that the corresponding prefix is ​​highlighted and associated with the desired connection, but there is no address on the IPv6 clients themselves. Tried to issue prefixes of different lengths (/64 and /68).
There are no problems with IPv4 addressing. Has anyone tried this? Maybe what script needs to be screwed? Google hasn't helped so far.

Answer 1

At me and Windows connections are not issued. I'm doing something wrong. The provider gives me an IPv6 block / 64 which is distributed over the local network using Advertise. But I did not understand how to assign PPTP and L2TP addresses to clients.
It seems like you need to start by creating an IPv6 pool, but what should I specify in Prefix and Prefix Length?