Code:
"root@xxxx:~# netplan apply
Error in network definition //etc/netplan/50-cloud-init.yaml line 10 column 12: malformed address 'auto/24', must be X.X.X.X/NN or X:X:X:X:X:X:X:X/NN"
Ubuntu 18 network doesn't come up if SLAAC (auto/) is selected for IPV6.
This seems to be an invalid setting, injected via cloud-init.
Someone may create a bugzilla ticket,have no access currently.
Thanks for fixing this!