ip2cidr

Introduction

A simple Ruby gem for converting a range of IP addresses to a list of CIDR blocks.

Installation

Install the gem on the command line using

gem install ip2cidr

Usage

Using the class:

$  irb
>> require "ip2cidr"
>> IPToCIDR.solveCIDR("192.168.0.1", "192.168.0.16")
=> ["192.168.0.1/32", "192.168.0.2/31", "192.168.0.4/30", "192.168.0.8/29", "192.168.0.16/32"]

Using the binary file:

$ ip2cidr 192.168.0.1 192.168.0.16
192.168.0.1/32
192.168.0.2/31
192.168.0.4/30
192.168.0.8/29
192.168.0.16/32

This gem cannot use either 0.0.0.0 or 255.255.255.255 as inputs and will return an ArgumentError if they are used as inputs.

Authors

Carlo Niño A. Bitoon

Kirk Gandril B. Madraga

John Patrick Suelto