This works but still doesn’t address the case where you have to set up an arbitrary DUID like when you’re hosted at Online.net as described here : http://forum.mikrotik.com/t/set-ipv6-dhcp-client-duid/103264/2
Which is also my problem…
It seems that RFC 3315 says you should not change the DUID (http://forum.mikrotik.com/t/ipv6-experience-and-needs/52573/8), but what harm would it actually cause to let us change that setting ?
Arnaud