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
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https://bugs.launchpad.net/bugs/1671951
Title:
networkd should allow configuring IPV6 MTU
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