Sequentially pinging 255 addresses via the Windows CLI takes ~5 minutes on my machine. I created this quick Python script to parallelize the address pinging, resulting in a runtime of ~10 seconds.
I created this mock version in Python with the goal to port it to the C socketAPI to run scripts on my ESP32 when my phone's IP address logs on to the network. Additionally, this script can be used to ensure that only valid devices are connected to a network at a given time.
Yes I can just set a static IP address for my phone, but that's not as fun.
DEFAULT_GATEWAY is hardcoded in network_scanner.py. Run ipconfig to find your DEFAULT_GATEWAY and change to suit your needs.
Run via python3 network_scanner.py