Subfind

Find subnets within a network using ICMP.

Install

Install the requirements:

pip install -r requirements.txt

Usage

Find multiple subnets with one input:

sudo python3 subfind.py 192.168.1-254.1-254

Store the output in TXT format:

sudo python3 subfind.py 192.168.1-254.1-254 -o subnets.txt

Warning

False positives may be expected, and it's also common for devices not to have ICMP enabled.