You can perform nProbe configuration using the following steps:
nprobe /r -n
nprobe /i nprobe_service --collector
{NETFLOW_SERVER_IP}:{NETFLOW_SERVER_LISTENER_PORT} --interface 0
--local-networks {LOOPBACK_INTERFACE_NAME} --flow-version 5
--local-traffic-direction --in-iface-idx 1 --out-iface-idx 2
--lifetime-timeout 60 --idle-timeout 15