Regular Expressions 101

Community Patterns

IPv4 address

0

Regular Expression
ECMAScript (JavaScript)

/
(1?\d{1,2}|2[0-4]\d|25[0-5])\.(1?\d{1,2}|2[0-4]\d|25[0-5])\.(1?\d{1,2}|2[0-4]\d|25[0-5])\.(1?\d{1,2}|2[0-4]\d|25[0-5])\/?(\b|\/32)
/
g

Description

Match IPv4 address, optionally with /32 CIDR notation

Submitted by anonymous - 6 years ago