IP Subnet Utility

A command-line tool for performing subnet-related operations, such as converting subnet masks, calculating usable IPs, and finding the appropriate subnet mask for a given number of IPs.

Usage

Convert a long-form subnet mask (e.g., 255.255.255.0) to CIDR notation (e.g., /24):

python main.py long_to_cidr <VALUE>

Convert a CIDR mask (e.g., /24) to a long-form mask (e.g., 255.255.255.0):

python main.py cidr_to_long <VALUE>

Calculate the number of usable IPs for a given CIDR mask (e.g., /24):

python main.py get_n_ips <VALUE>

Find the smallest CIDR mask for a given number of total IPs:

python main.py total_ips_to_mask <VALUE>

For additional info:

python main.py -h