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binarymax / parseCIDRRange.js
Last active July 30, 2021 11:03
JavaScript function to parse a CIDR Range string into beginning and ending IPv4 Addresses
//MIT License
//Copyright (c) 2013, Max Irwin
//Parses a CIDR Range into beginning and ending IPv4 Addresses
//For example: '10.0.0.0/24'
//Returns ['10.0.0.0', '10.0.0.255']
var parseCIDR = function(CIDR) {
//Beginning IP address
var beg = CIDR.substr(CIDR,CIDR.indexOf('/'));