Alright, so I've been trying this without any luck the whole day.
How to configure a VLAN for all its client to get stateful IPv6 through a DHCPv6 server in the network on a Cisco C891F router?
My current configuration abbreviated with IPv6 relevant stuff only:
ipv6 unicast-routing ipv6 cef ! interface GigabitEthernet8 description Internet ipv6 address 2800:160:1F88:1::2/126 ipv6 enable ! interface Vlan1 description LAN ipv6 address 2800:160:1F88::1/64 ipv6 enable ipv6 nd prefix 2600:160:1F88::/64 300 300 no-autoconfig ipv6 nd managed-config-flag ipv6 nd ra lifetime 9000 ! ipv6 route ::/0 2800:160:1F88:1::1
DHCPv6 is at 2800:160:1F88:12 on a Windows Server 2016. As a sidenote DHCP works correctly on it.
I just cannot get it to work, clients are still getting autoconfig through SLAAC, they do not even get the Nameservers configured at the DHCPv6 server.
What am I doing wrong?