Para executar as configurações abaixo é necessário ter o pacote IPv6 ativado.

Primeiro devemos configurar o dhcp-client na interface PPPoE client e criar o Pool de IPs.

/ipv6 dhcp-client
  add add-default-route=yes interface=pppoe-out1 pool-name=dhcp-pd pool-prefix-length=64 request=prefix

Após é necessário configurar o IPv6 da interface LAN.

/ipv6 address
  add address=::1/64 from-pool=dhcp-pd interface=ether2

Configurar o ND (Neighbord Discovery).

/ipv6 nd
  set [ find default=yes ] advertise-dns=yes other-configuration=yes

Também é necessário configurar as regras de firewall para IPv6.

/ipv6 firewall filter
  add chain=input comment="Libera conexoes estabelecidas e relacionadas" connection-state=established,related
  add chain=input comment="Libera multicast" src-address=ff00::/8
  add chain=input comment="Libera link local" src-address=ff00::/10
  add chain=input comment="Libera multicast" dst-address=ff00::/8
  add chain=input comment="Libera link local" dst-address=ff00::/10
  add chain=input comment="Libera icmp" in-interface=pppoe-out1 limit=200,5:packet protocol=icmpv6
  add chain=input comment="Libera DHCPv6" dst-port=546 in-interface=pppoe-out1 limit=200,5:packet protocol=udp
  add action=drop chain=input comment="bloqueia tudo" in-interface=pppoe-out1
  add chain=forward comment="Libera conexoes estabelecidas e relacionadas" connection-state=established,related
  add chain=forward comment="Libera icmp" in-interface=pppoe-out1 limit=200,5:packet protocol=icmpv6