# 
# cat /etc/dhcp/dhcpd6.conf 
subnet6 2001:db8:1:1::/64 {
  range6 2001:db8:1:1::100 2001:db8:1:1::1000;
}


option dhcp6.map-option code 48879 = string;


subnet6 2001:db8:1:2::/64 {
  prefix6 2001:DB8:FFFF:FF00:: 2001:DB8:FFFF:FFF0:: /60;
  option dhcp6.map-option 00:42:02:00:0f:1e:ac:11:02:f0:04:00:38:20:01:0d:b8:ff:ff:ff:42:03:00:09:40:20:01:0d:b8:ca:fe:ca:fe;
}

subnet6 2001:db8:1:3::/64 {
  prefix6 2001:DB8:FFFF:FF00:: 2001:DB8:FFFF:FFF0:: /60;
  option dhcp6.map-option 00:42:02:00:0f:1e:ac:11:02:f0:04:00:38:20:01:0d:b8:ff:ff:ff:42:03:00:09:40:20:01:0d:b8:ca:fe:ca:fe;
}