In the Eoan version of systemd, I can see in the logs these messages: Oct 24 18:52:32.753746 ubuntu systemd-networkd[1167]: Setting '/proc/sys/net/ipv6/conf/interface1/proxy_ndp' to '0' Oct 24 18:52:32.753848 ubuntu systemd-networkd[1167]: Setting '/proc/sys/net/ipv6/conf/interface1/use_tempaddr' to '0' Oct 24 18:52:32.753884 ubuntu systemd-networkd[1167]: Setting '/proc/sys/net/ipv6/conf/interface1/accept_ra' to '0' Oct 24 18:52:32.753962 ubuntu systemd-networkd[1167]: Setting '/proc/sys/net/ipv6/conf/interface1/mtu' to '5634'
These are not emitted in bionic or disco versions of systemd. -- 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