Regular Expressions 101

Matches a string of digits between 0 and 255.

Matches a string of digits between 0 and 255.

Match tokens that are either IPv4 addresses or MAC addresses (three formats)

Accepts: Valid IPv4: 127.0.0.1 192.168.1.1 192.168.1.255 192.168.255.255...

const ipAddressRegexp = /((^\s(((0-9]|[1-9|10-9]{2}|2[0-4|250-5])\.){3}([0-9]|[1-9|10-9]{2}|2[0-4|25[0-5]))\s$)|(^\s((([0-9a-f]{1,4}:){7}([0-9a-f]{1,4}|:))|(([0-9a-f]{1,4}:){6}(:[0-9a-f]{1,4}|((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})|:))|(([0-9a-f]{1,4}:){5}(((:[0-9...

IPv4 address RegExp.

Regex to remove leading (on the left) zeros on ipv4 (ip v4) Source: https://autohotkey.com/board/topic/15491-regex-to-strip-leading-zeroes-out-of-an-ip-address-octet/

Found in here, stackoverflow url.

When validating an IPv4 address I often have to reject devices that the first and last octet are 0.

Grabs an IPv4 address, and if it has a CIDR slash notation, then grab that too.

ldap, ldaps, ipv4, ipv6 & dns (bare bones)

Find ipv4 addresses