conn %default
        ikelifetime=60m
        keylife=20m
        rekeymargin=3m
        keyingtries=1

conn lan
        right=%any
        leftsubnet=fd12:3456:7890:abcd::/64
        rightsubnet=fd12:3456:7890:abcd::/64
        type=transport
        authby=psk
        auto=route

ping6 -I fd12:3456:7890:abcd::1234 ff02::1

conn local
       type=passthrough
       left=fd12:3456:7890:abcd::1234
       right=fd12:3456:7890:abcd::1234

conn local
        type=passthrough
        right=%any
        rightsubnet=fd12:3456:7890:abcd::1234/128