Thank you Karim.
I already read articles similar but I didn't understand how to change the priority of a route instead another
- NIC_0 is an RJ45 port and i need to route the 192.168.20.0/255.255.255.0 traffic
route ADD 192.168.20.0 MASK 255.255.255.0 192.168.20.254
- NIC_1 is wi-fi or usb-modem connection to route for all other traffic (internet)
route ADD 0.0.0.0 MASK 0.0.0.0 192.168.70.12
Are those the right commands?