interfaces {
     ethernet eth0 {
         address dhcp
         address dhcpv6
         dhcpv6-options {
             prefix-delegation
             prefix-length 56
         }
         prefix-delegation {
             interface-id 1
             sla-id 0
             sla-len 0
         }
     }
     ethernet eth1 {
         address 192.168.1.1/24
         prefix-delegation {
             interface-id 1
             sla-id 1
             sla-len 0
         }
     }
 }
nat {
     nptv6 {
         rule 10 {
             outbound-interface eth0
             source {
                 prefix fdec:afc0:ffee::/64
             }
             translation {
                 prefix-sla-id 1 {
                     prefix ::/64
                 }
             }
         }
     }
 }
service {
     dns {
         forwarding {
             allow-from 192.168.1.0/24
             listen-address 192.168.1.1
             name-server 192.168.1.4
             prefix-sla-id 1 {
                 allow-from ::/64
                 listen-address ::1
                 name-server ::4
             }
         }
     }
     router-advert {
         interface eth1 {
             default-preference medium
             dnssl somedomain.com
             managed-flag
             other-config-flag
             prefix-sla-id 1 {
                 prefix ::/64 {
                 }
                 name-server ::4
             }
         }
     }
     dhcpv6-server {
         shared-network-name network {
             prefix-sla-id 1 {
                 subnet ::/64 {
                     address-range {
                         start ::1 {
                             stop ::ffff
                         }
                     }
                 }
             }
         }
     }
 }
system {
     name-server 192.168.1.4
     prefix-sla-id 1 {
         name-server ::4
     }
 }