cidr-clean

Compare list of CIDR, remove duplicates and choose the heaviest network in case of overlap

Usage no npm install needed!

<script type="module">
  import cidrClean from 'https://cdn.skypack.dev/cidr-clean';
</script>

README

cidr-clean

Node.js CI npm version MIT Licence Dependencies

What for ?

Clean an array of CIDR

  • remove duplicates
  • remove comments
  • remove bad CIDRs
  • remove extra spaces
  • choose the heaviest network in case of overlap

Installation

$ npm install cidr-clean

Usage

const cidrClean = require('cidr-clean');

let list = [
    '#mycomment',
    '10.1.2.0/23',
    '110.1.3.248/30',
    '1.2.3.4/10'
];

console.log(cidrClean(list));

# output: ['10.1.2.0/23', '110.1.3.248/30', '1.2.3.4/10'];

# note, you can cidrClean(list1, list2) for merging 2 cidr lists

Todo

  • optional callback with all events (remove, overlap)