Verification-done on disco: ubuntu@ip-172-30-0-243:~$ lsb_release -cs disco ubuntu@ip-172-30-0-243:~$ dpkg -l netplan.io systemd | grep ii ii netplan.io 0.98-0ubuntu1~19.04.1 amd64 YAML network configuration abstraction for various backends ii systemd 240-6ubuntu5.7 amd64 system and service manager ubuntu@ip-172-30-0-243:~$ sudo netplan apply ubuntu@ip-172-30-0-243:~$ ip link 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 6666 qdisc fq_codel state UP mode DEFAULT group default qlen 1000 link/ether 06:92:5b:c9:b5:3d brd ff:ff:ff:ff:ff:ff ubuntu@ip-172-30-0-243:~$ networkctl IDX LINK TYPE OPERATIONAL SETUP 1 lo loopback carrier unmanaged 2 eth0 ether routable configured
2 links listed. ubuntu@ip-172-30-0-243:~$ sysctl net.ipv6.conf.eth0.mtu net.ipv6.conf.eth0.mtu = 5634 ubuntu@ip-172-30-0-243:~$ cat /etc/netplan/50-cloud-init.yaml # This file is generated from information provided by # the datasource. Changes to it will not persist across an instance. # To disable cloud-init's network configuration capabilities, write a file # /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following: # network: {config: disabled} network: version: 2 ethernets: eth0: dhcp4: true match: macaddress: 06:92:5b:c9:b5:3d set-name: eth0 ipv6-mtu: 5634 mtu: 6666 dhcp6: true dhcp4-overrides: use-mtu: false dhcp6-overrides: use-mtu: false ** Tags added: verification-done-disco -- 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