64D-Link DIR-869 User ManualSection 4 - Conffguration - Router ModeAdvanced Settings - Address Autoconfiguration SettingsEnable AutomaticIPv6 AddressAssignment:Enable or disable the Automatic IPv6 Address Assignment feature.AutoconfigurationType:Select SLAAC+RDNSS, SLAAC+Stateless DHCP, or Stateful DHCPv6.If you selected Stateful DHCPv6 as the Autoconfiguration Type:IPv6 AddressRange (Start):Enter the starting IPv6 address for the DHCP server’s IPv6 assignment.IPv6 AddressRange (End):Enter the ending IPv6 address for the DHCP server’s IPv6 assignment.IPv6AdvertisementLifetime:Enter the IPv6 address lifetime (in minutes).Click Save when you are done.