Regex Example
IPv4 Pattern
Validates dotted IPv4 addresses.
Regex Pattern
^(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}$Test Cases
- 192.168.0.1 - match
- 256.1.1.1 - no match
- 10.0.0.254 - match
Edge Cases
- Does not validate CIDR notation.
- Leading zeros may be interpreted differently by some systems.