ip addr flush dev eth0
ip link set eth0 up
ip addr add IPV4_EXAMPLE/24 broadcast BROADCAST_FROM_EXAMPLE dev eth0
ip route add default via GATEWAY_FROM_MANAGER

e.g
ip addr flush dev eth0 && ip link set eth0 up && ip addr add 192.201.12.21/24 broadcast 172.00.00.255 dev eth0 && ip route add default via 172.100.00.1