I just created another project with Debug Messages enabled and configured with Static IP as suggested above.

Below are the messages I could see it on my Debug Terminal window:

etharp_request: sending ARP request.
etharp_raw: sending raw ARP packet.
etharp_timer
etharp_timer

Configuration details.

Remote Computer (Windows):

IP Address: 192.168.0.100
Subnet Mask: 255.255.255.0
Gateway: 192.168.0.1

NUCLEO:

IP Address: 192.168.0.10
Subnet Mask: 255.255.255.0
Gateway: 192.168.0.1

'ping' command response on Remote PC:

ping 192.168.0.10

Pinging 192.168.0.10 with 32 bytes of data:
Reply from 192.168.0.100: Destination host unreachable.
Reply from 192.168.0.100: Destination host unreachable.
Reply from 192.168.0.100: Destination host unreachable.
Reply from 192.168.0.100: Destination host unreachable.

Ping statistics for 192.168.0.10:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Because of size limitation, I couldn't be able to attach my project.

Thanks,
Hari