regex101: advfirewall protocol

Explanation

Pro

^start of string

Group with flags i(?i:25[0-5]|2[0-4]\d|1\d\d|\d\d|\d|any|tcp|udp|icmpv[46](?:[:](?:25[0-5]|2[0-4]\d|1\d\d|\d\d|\d),(?:25[0-5]|2[0-4]\d|1\d\d|\d\d|\d))?)

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

1st Alternative25[0-5]

25the literal text 25

Character Class[0-5]

0-5one character from 0 (48₁₀) to 5 (53₁₀)

2nd Alternative2[0-4]\d

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

Character Class[0-4]

0-4one character from 0 (48₁₀) to 4 (52₁₀)

\da digit

3rd Alternative1\d\d

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

\da digit

4th Alternative\d\d

\da digit

5th Alternative\d

\da digit

6th Alternativeany

anythe literal text any (case insensitive)

7th Alternativetcp

tcpthe literal text tcp (case insensitive)

8th Alternativeudp

udpthe literal text udp (case insensitive)

9th Alternativeicmpv[46](?:[:](?:25[0-5]|2[0-4]\d|1\d\d|\d\d|\d),(?:25[0-5]|2[0-4]\d|1\d\d|\d\d|\d))?

icmpvthe literal text icmpv (case insensitive)

Character Class[46]

4the literal 4 (52₁₀ / 64₈ / 34₁₆)

6the literal 6 (54₁₀ / 66₈ / 36₁₆)

Non-Capturing Group(?:[:](?:25[0-5]|2[0-4]\d|1\d\d|\d\d|\d),(?:25[0-5]|2[0-4]\d|1\d\d|\d\d|\d))?

?repeats the group contents below at most once:

Character Class[:]

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Non-Capturing Group(?:25[0-5]|2[0-4]\d|1\d\d|\d\d|\d)

1st Alternative25[0-5]

25the literal text 25

Character Class[0-5]

0-5one character from 0 (48₁₀) to 5 (53₁₀)

2nd Alternative2[0-4]\d

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

Character Class[0-4]

0-4one character from 0 (48₁₀) to 4 (52₁₀)

\da digit

3rd Alternative1\d\d

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

\da digit

4th Alternative\d\d

\da digit

5th Alternative\d

\da digit

,the literal , (44₁₀ / 54₈ / 2C₁₆)

Non-Capturing Group(?:25[0-5]|2[0-4]\d|1\d\d|\d\d|\d)

1st Alternative25[0-5]

25the literal text 25

Character Class[0-5]

2nd Alternative2[0-4]\d

3rd Alternative1\d\d

4th Alternative\d\d

5th Alternative\d

Non-Capturing Group(?:,(?i:25[0-5]|2[0-4]\d|1\d\d|\d\d|\d|any|tcp|udp|icmpv[46](?:[:](?:25[0-5]|2[0-4]\d|1\d\d|\d\d|\d),(?:25[0-5]|2[0-4]\d|1\d\d|\d\d|\d))?))*?

$end of string, or before its final line terminator

Quick Reference

25 tokens

Regular Expression

^(?i:25[0-5]|2[0-4]\d|1\d\d|\d\d|\d|any|tcp|udp|icmpv[46](?:[:](?:25[0-5]|2[0-4]\d|1\d\d|\d\d|\d),(?:25[0-5]|2[0-4]\d|1\d\d|\d\d|\d))?)(?:,(?i:25[0-5]|2[0-4]\d|1\d\d|\d\d|\d|any|tcp|udp|icmpv[46](?:[:](?:25[0-5]|2[0-4]\d|1\d\d|\d\d|\d),(?:25[0-5]|2[0-4]\d|1\d\d|\d\d|\d))?))*?$

New

icmpV4:150,145,72

Extraction

icmpV4:150,145,72