Macvlan using systemd

README.md

Before

yum install -y systemd-networkd
modprobe macvlan # make sure this returns no errors

Put config files in place

eth0.network and mac0.{netdev,network} go in /etc/systemd/network/ macvlan.service goes in /etc/systemd/system/

...

After

systemctl daemon-reload
systemctl enable systemd-networkd
systemctl enable macvlan

Notes

• Promiscuous mode is supposed to be enabled on the parent device as a side effect of having a macvlan bridge added, but for some reason, in CentOS 7.2, we have to nudge it ourselves. Doesn't seem like a big deal. another reference.
  • ¯\_(ツ)_/¯

eth0.network

[Match]
Name=eth0

[Network]
MACVLAN=mac0

mac0.netdev

[NetDev]
Name=mac0
Kind=macvlan

[MACVLAN]
Mode=bridge

mac0.network

[Match]
Name=mac0

[Network]
IPForward=yes
Address=10.11.12.51/24

macvlan.service

[Unit]
After=network.target
Before=network-online.target

[Service]
Type=oneshot
ExecStart=/sbin/ip link set eth0 promisc on
RemainAfterExit=yes

[Install]
WantedBy=network-online.target