What is this Project?

One of the most annoying things to deal with in network administration is having to convert between IP addresses and CIDR block/space notation.

As part of my learning/upskilling in Go as well as cloud certifications, I needed to learn how to interpret CIDR ranges and convert between notations. Instead of just reading about it, I decided to make my life difficult and write a CLI tool and explore some of the Go packages that exist for command-line processing.

Features

Right now, this tool only converts CIDR blocks Address/Network Prefix to IP address ranges.

I would like to also:

• Convert IP address ranges to CIDR blocks
• Test if an IP exists within a given CIDR block
• Test if an IP exists within a provided IP address range

Installation

Build from source

Prerequisites

To build from source, you will need the following available on your host:

• git
• go (1.23+)

Building

You can build this project from source by downloading a release tag artifact or cloning this repo:

git clone [email protected]:taylrfnt/cidr-cli.git weather

After cloning the repo, delete the git contents:

cd idr-cli && rm -rf .git

Now, run a Go build:

go build

You can execute cidr-cli directly:

./cidr-cli

or you can add it to your $PATH for easier use:

export PATH=${PATH}:/path/to/cidr-cli/directory