Validates IPv4 IP Address

POSIX ERE compatible, suitable for usage in Bash [ testing Attributions Derived from [regex101: RFC1918 - Private IPv4 addresses by 0100101101001.

Validate IPv4 addresses using PCRE's recursion patterns. A shorter but less efficient alternative to https://regex101.com/r/wZ6oY5/1

This regular expression will match an IPv4 address as well as both compressed or uncompressed IPv6 address.

validate an IP v4

Get ip address (only ipv4) Validator

Validate a given IP v4 address against all three defined Private IPv4 Subnets as statet in RFC1918 10.0.0.0/8 172.16.0.0/20 192.168.0.0/16 Wikipedia Link RFC Link

This regex matches every IPv4 address with or without 0s before every number. For example: 192.168.1.1 00000000000192.168.00000000000001.01

This regexp was written for Regex Tuesday Challenge - Week Six.

Valid: 000.01.249.255 1.199.200.0 0.0.0.0 Invalid: 1000..256.300

Validate an IPv4 address. The addresses are four numbered separated by three dots, and can only have a maximum value of 255 in either octet. Start by trying to validate 172.16.254.1.

A good enough approximation to IPv6 based on the examples at https://www.ibm.com/docs/en/ts3500-tape-library?topic=functionality-ipv4-ipv6-address-formats

Intentionally leaves out weird stuff such as IPV4 or IPV6 for the domain part and quoted usernames with invalid chars in the addressee part. Handles internationalized domains with soft validation (only structural matching) and blocks domain parts starting or ending with dashes or containing double dashes (except in xn-- internationalization prefix).

IPv4 Address Input

Regex to match an IPv4 address at beginning

Searches for dotted decimal IPv4 Adresses and saves the numbers in match groups.

Capture 0.0.0.0-255.255.255.255 IP address octets. Capture private ranges, such as '169.254.' and '10.'

Simple Regex to *validate * (no extraction!) an IPv4 Range which can be a comma separated mixture of IPv4 addresses IPv4 CIDRs IPv4 Ranges like 1.1.1.1-1.1.1.10 Examples : 192.168.1.1,255.255.255.255/32,10.10.10.10/24,0.0.0.0/24 192.168.1.1/32 192.168.1.1 192.168.1.1/32 192.168.1.1/12 192.168.1.1/24 192.168.1.1/24 192.168.1.1/0,192.168.1.1/0 10.0.0.0/24 172.16.0.1-172.16.0.255 192.168.1.1,10.0.0.1/24,172.16.0.1-172.16.0.10 64.33.232.212 64.33.232.210/24

Match only Private IPv4 Does not match Public IPv4 and test Nets

Match only Public IPv4 Does not match Private IPv4 and test Nets

Match only Public IPv4 Does not match Private IPv4 However does match test Nets

An IPv4 expression that doesn't allow leading zeros in octets. 10.0.0.1 will pass 10.0.0.01 shouldn't pass

IPv4 matching pattern. Excludes values over 255 or numbers with zero-prefix (e.g. 08)

This regular expression strictly matches an IPv4 address. Leading 0 are not matched , take a look at test strings and try your own ones.

(?(?:(?:250-5]|(?:2[0-4]|1\d|[1-9]|)\d)\.?\b){4}) Originating from ^((25[0-5]|(2[0-4]|1\d|[1-9]|)\d)\.?\b){4}$ at only 43 chars Source: [Danail Gabenski

This regex can be used to validate IPv4 and IPv6 addresses as well as CIDR ranges

Matches any valid IPv4 address with, optionally, a CIDR suffix. 0.0.0.0 to 255.255.255.255 and 1.1.1.1/0 to 1.1.1.1/32. Use the following regex if you don't want to allow the CIDR suffix. /^(?:(?:1-9]?[0-9]|1[0-9|2(?:0-4|50-5]))\.){3}(?:[1-9]?[0-9]|1[0-9|2(?:0-4|5[0-5]))$/ (removed (?:\/(?:[12]?[0-9]|3[0-2]))? from the end)

Regex pattern detection for IPv4 addresses and IPv6 addresses in zero compression format.

Strict validator for IPv4 with optional CIDR Disallows 00 in any octet

Match and validate both ipv4, ipv6 and CIDR notation mask!

Helps to find IPv4 or IPv6 CIDR entry in any text.

Converts in-addr.arpa hostnames to IPv4 e.g. 1.0.0.127.in-addr.arpa to 127.0.0.1

This regex matches a IPv4 with a TCP Port (1-65535) Example: 192.168.0.69:1337 will match and have the groups: Group 1: 192.168.0.69 Group 2: 1337

Regex to identificate a IPV4 Address

IPv4 Validation to RFC 3986 found at https://tools.ietf.org/html/rfc3986#section-1.1.1.

Matches IPv4 address list separated by comma (,). Does not match an incomplete list (e.g. 192.168.1.0,)

Validate IPv4 addresses using PCRE's recursion patterns.

This pcre style regex tests for valid URLs capturing the whole address. It will capture http and https only. Compatible with multiple sub-domains and raw IPV4 addresses, as well as paths, queries, and parameters. See below for examples: Will match these valid URLS: https://www.example.com/foo/?bar=baz&inga=42&quux http://foo.com/blah_(wikipedia)#cite-1 http://foo.com/blah_(wikipedia)_blah#cite-1 http://foo.com/unicode_(✪)_in_parens http://foo.com/(something)?after=parens http://code.google.com/events/#&product=browser http://142.42.1.1/ http://142.42.1.1:8080/ Will NOT match though valid URLS http://✪df.ws/123 http://userid:password@example.com:8080 http://userid:password@example.com:8080/ http://userid@example.com http://userid@example.com/ http://userid@example.com:8080 http://userid@example.com:8080/ http://userid:password@example.com http://userid:password@example.com/ Does NOT and should not match these bad URLS: http:// http://. http://.. http://../ http://? http://?? http://??/ http://# http://## http://##/ http://foo.bar?q=Spaces should be encoded // //a ///a /// http:///a foo.com rdar://1234 h://test http:// shouldfail.com :// should fail http://foo.bar/foo(bar)baz quux ftps://foo.bar/ http://-error-.invalid/ http://a.b--c.de/ http://-a.b.co http://a.b-.co http://3628126748 http://.www.foo.bar/ http://www.foo.bar./ http://.www.foo.bar./ Its not perfect, it will match http://999.999.999.999 and similar invalid IPV4 addresses and is not optimized but met my needs.

Validates and parses absolute URLs: Optional http:// or https:// at the start IPv4 supported, IPv6 NOT supported International characters (punycode) NOT supported Extracts scheme, username, password, IPv4 address or domain, port, path, querystring and fragment Sensible restrictions on domain and path

wttmforums.com

| Regex | Number | | :----------: | :-----------: | | 1?1-9]?\d | 0-99, 110-199 | | [12\d | 100-149, 200-249 | | 25[0-5] | 250-255 | Some wrong code : 1?\d?\d|2[0-4]\d|25[0-5] and \d{1,2}|1\d\d|2[0-4]\d|25[0-5] both includes 00-09

as the title says

Validates that you provide a CIDR in one of the following valid ranges. 0.0.0 – 127.255.255.255 127.0.0.0/8 0.0.0 – 10.255.255.255 10.0.0.0/8 16.0.0 – 172. 31.255.255 172.16.0.0/12 192.168.0.0 – 192.168.255.255 192.168.0.0/16 Subnets can be smaller (e.g. 192.168.0.0/17 is valid) but not larger (e.g. 192.168.0.0/15 is invalid). Single hosts (i.e. /32s) are invalid. Host bits are generally ignored (i.e. 192.168.1.2/16 is considered valid)