Package Exports

ipop

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (ipop) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

ipop

IP subnet calculator. One can also use it to check if IP is in subnet.

Install

npm install ipop

Usage

Example

var ipop = require('ipop');

// check if IP in subnet
console.log(ipop.ip4incidr('192.168.1.15', '192.168.0.1/24'));
console.log(ipop.ip4incidr('192.168.1.15', '192.168.0.1/16'));
console.log(ipop.ip4incidr('192.168.1.15', '192.168.1.15/32'));

// show subnet info
console.log(ipop.cidr4('87.239.88.1/22'));

Output:

false
true
true
{ net: '87.239.88.0',
  netmask: '255.255.252.0',
  broadcast: '87.239.91.255',
  low: '87.239.88.1',
  high: '87.239.91.254',
  hosts: 1022 }

Documentation

ip4incidr(ip, cidr)

check if ip is in given cidr. Returns boolean. cidr has to be in format X.X.X.X/X.

cidr4(cidr)

cidr4 returns object with info about given cidr:

net: network address
netmask: network mask
broadcast: broadcast address
low: first usable host address
high: last usable host address
hosts: number of usable hosts