pptp-client + IPv6 : no link local address

I configured a pptp link with my routerOS as client and a freebsd as server (with mpd5)
ipv6cp is activated on the freebsd, however I have no link local address on the mikrotik interface, only on the freeBSD.
How can I get this link-local address which would allow me to route the networks on both sides through this VPN ?

Ok, the problem was on mpd configuration which did not have ipv6cp activated (typo in teh config). What troubled me was tthat the mpd side had IPv6 activated, but not the routerOS one…