xen host // network bridge with netplan

Linux Bridge with Netplan

tested on artful/17.10

cp -pi /etc/netplan/01-netcfg.yaml /etc/netplan/01-netcfg.yaml.dist
vi /etc/netplan/01-netcfg.yaml

network:
  version: 2
  renderer: networkd
  ethernets:
   NIC1:
    dhcp4: no
    dhcp6: no
   NIC2:
    dhcp4: no
    dhcp6: no
  bridges:
   pubbr0:
    interfaces:
     - NIC2
    dhcp4: no
    dhcp6: no
   xenbr0:
    interfaces:
     - NIC1
    dhcp4: no
    dhcp6: no
    addresses:
     - x.x.x.x/xx
    gateway4: x.x.x.x

   # parameters:
   #  stp: no
   #  forward-delay: 0

vi /etc/rc.local

echo -n bringing up the public bridge...
ifconfig pubbr0 up && echo done

dpkg -l | grep ifupdown #should be empty
dpkg -l | grep netscript #should be empty
#systemctl restart systemd-networkd.service
netplan generate
netplan apply
ping -c1 opendns.com