interface enp0s3 {
  AdvSendAdvert on;
  prefix 2001:db8:0:15::/64 {
    AdvOnLink on;
    AdvAutonomous on;
    AdvPreferredLifetime 900;
    AdvValidLifetime 1500;
  };
  AdvDefaultLifetime 1500;
  AdvOtherConfigFlag on;
};
 
<file txt /etc/dhcp/dhcpd6.conf>
option dhcp6.name-servers 2001:db8:0:910::1;
option dhcp6.domain-search "ipv6-training";
 
subnet6 2001:db8:0:910::/64 {
}

interface enp0s3 {
  AdvSendAdvert on;
  prefix 2001:db8:0:15::/64 {
    AdvOnLink on;
    AdvAutonomous off;
    AdvPreferredLifetime 900;
    AdvValidLifetime 1500;
  };
  AdvDefaultLifetime 1500;
  AdvManagedFlag on;
};

subnet6 2001:db8:0:910::/64 {
        range6 2001:db8:0:910::f00:0000 2001:db8:0:910::fff:0000;
        range6 2001:db8:0:910::/64 temporary;
        prefix6 2001:db8:ff00:: 2001:db8:ffff:: /64;
}