>>329
IPv6 IPoEのみの設定からの差分です

ip route default gateway tunnel 1
ipv6 prefix 1 ra-prefix@lan2::/64
ip lan1 address ***.***.***.0/24
ipv6 lan1 address ra-prefix@lan2::****:****:****:****/64
ipv6 lan1 rtadv send 1 o_flag=on
ipv6 lan1 dhcp service server
ipv6 lan2 address auto
ipv6 lan2 dhcp service client ir=on
pp disable all
no tunnel enable all
tunnel select 1
tunnel encapsulation ipip
...