Document List:

Random MAC Generator

#/etc/systemd/network/br0.netdev

[NetDev]
Name=br0
Kind=bridge
MACAddress=00:16:3e:4b:96:25
#/etc/systemd/network/br0.network

[Match]
Name=br0

[Network]
DHCP=yes
LinkLocalAddressing=no
#/etc/systemd/network/en.network

[Match]
Name=en*

[Network]
Bridge=br0
LinkLocalAddressing=no

NOTE: The LinkLocalAddressing=no is not needed. I add it because I have no use for local link addresses.