netplan

$ cat /etc/netplan/01-netcfg.yaml

# This file describes the network interfaces available on your system
# For more information, see netplan(5).
network:
  version: 2
  renderer: networkd
  ethernets:
    enp1s0f0:
      dhcp4: no
      dhcp6: no
    enp1s0f1:
      dhcp4: yes
      dhcp6: no
  bridges:
    br0:
      interfaces: [enp1s0f0]
      macaddress: xx:xx:xx:xx:xx:xx
      dhcp4: yes
      dhcp6: no
      parameters:
        stp: false
        forward-delay: 0
        
$ reboot
# généré le plan et  systemctl restart systemd-networkd ne suffit pas