linux bridge ubuntu setup br0
apt install bridge-utils
brctl addbr br0
cat <<-EOF >> /etc/network/interfaces
auto br0
iface br0 inet static
address 172.16.178.202
netmask 255.255.255.0
gateway 172.16.178.1
bridge_ports eth0
bridge_stp off
bridge_fd 0
bridge_maxwait 0
EOF