The original netplan yaml I was testing was simpler, but also failed so I tried to see if additional settings would make a difference, but it did not.
network: version: 2 ethernets: interface0: dhcp4: true match: macaddress: '52:54:00:12:34:00' set-name: interface0 interface1: addresses: - 192.168.1.2/24 - 2001:4800:78ff:1b:be76:4eff:fe06:1000/64 match: macaddress: '52:54:00:12:34:02' mtu: 6666 ipv6-mtu: 5634 set-name: interface1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1671951 Title: networkd should allow configuring IPV6 MTU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cloud-init/+bug/1671951/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs