IP and subnet validation

[wonderfan]

One regular expression to valid IP

"regex":"/^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/"

[wonderfan]

a simple and user validation library : https://github.com/rickharrison/validate.js/blob/master/validate.js

[wonderfan]

This one is used in my code :+1: https://github.com/markwillis82/ipFunctions/blob/master/lib/cidr.js

[wonderfan]

javascript ip library: https://github.com/andreax79/iplib.js

[wonderfan]

Use is_ip method to test the validness: https://github.com/DavidTPate/isip/blob/master/index.js