/interface ipipv6
add local-address=:: name=ipipv6-tunnel1 remote-address=2001:db8:be0:7501::1
/ipv6 address
add address=2001:db8:be1:6501::1 advertise=no interface=ether3
add address=2001:db8:be1:6500::1 advertise=no interface=ether4
add address=2001:db8:7777::2 advertise=no interface=ipipv6-tunnel1
/ipv6 route
add distance=1 gateway=2001:db8:be1:6501::2
/routing ripng interface
add interface=ipipv6-tunnel1
add interface=ether4