IP Address and Subnetting CIDR Helpful Tools - ipcalc cli

How often are you subnetting, or just trying to get valid sets of CIDR (classless inter-domain routing) addresses?

For that there are a bunch of online tools, but the one tool I prefer is the ipcalc command line tool.  The Linux man page is here: ipcalc man | Linux Command Library

It's also available on macOS using Homebrew via brew install ipcalc – and there is an online-version here: http://jodies.de/ipcalc

Full source is here: ipcalc / ipcalc · GitLab

An example might be, lets say you have a segment that needs to have 16 addresses per subnet. Just ask ipcalc 10.0.0.0/16 -s 14