Apparently this was not fixed for Ubuntu 18.04 release? rsa@tppjoe01:~$ cat /etc/os-release NAME="Ubuntu" VERSION="18.04 LTS (Bionic Beaver)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 18.04 LTS" VERSION_ID="18.04" HOME_URL="https://www.ubuntu.com/" SUPPORT_URL="https://help.ubuntu.com/" BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/" PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy" VERSION_CODENAME=bionic UBUNTU_CODENAME=bionic
rsa@tppjoe01:~$ uname -a Linux tppjoe01 4.15.0-20-generic #21-Ubuntu SMP Tue Apr 24 06:16:15 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux rsa@tppjoe01:~$ 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: ethernets: eno1: addresses: [] dhcp4: true optional: true enp94s0f0: addresses: - 10.5.0.12/24 mtu: 9000 dhcp4: false optional: true enp94s0f1: addresses: - 10.6.0.12/24 mtu: 9000 dhcp4: false optional: true version: 2 rsa@tppjoe01:~$ sudo netplan generate rsa@tppjoe01:~$ sudo netplan apply rsa@tppjoe01:~$ ifconfig eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.2.0.202 netmask 255.255.255.0 broadcast 10.2.0.255 inet6 fe80::aa1e:84ff:fea2:9922 prefixlen 64 scopeid 0x20<link> ether a8:1e:84:a2:99:22 txqueuelen 1000 (Ethernet) RX packets 477 bytes 51423 (51.4 KB) RX errors 0 dropped 7 overruns 0 frame 0 TX packets 463 bytes 56944 (56.9 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 device memory 0x9d100000-9d17ffff enp94s0f0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.5.0.12 netmask 255.255.255.0 broadcast 10.5.0.255 inet6 fe80::ee0d:9aff:fe2e:13b0 prefixlen 64 scopeid 0x20<link> ether ec:0d:9a:2e:13:b0 txqueuelen 1000 (Ethernet) RX packets 249 bytes 33951 (33.9 KB) RX errors 0 dropped 219 overruns 0 frame 0 TX packets 19 bytes 1426 (1.4 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 enp94s0f1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.6.0.12 netmask 255.255.255.0 broadcast 10.6.0.255 inet6 fe80::ee0d:9aff:fe2e:13b1 prefixlen 64 scopeid 0x20<link> ether ec:0d:9a:2e:13:b1 txqueuelen 1000 (Ethernet) RX packets 249 bytes 34056 (34.0 KB) RX errors 0 dropped 218 overruns 0 frame 0 TX packets 19 bytes 1426 (1.4 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 1000 (Local Loopback) RX packets 160 bytes 11012 (11.0 KB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 160 bytes 11012 (11.0 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1724895 Title: MTU not applied on private ethernet interfaces To manage notifications about this bug go to: https://bugs.launchpad.net/netplan/+bug/1724895/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs