Regular Expressions 101

Pro

^start of string

Group 1([0-9A-F]{2}[:]){5}

{5}repeats the group contents below exactly 5 times:

Character Class[0-9A-F]{2}

{2}matches exactly 2 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

A-Fone character from A (65₁₀) to F (70₁₀) (case sensitive)

Character Class[:]

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Group 2([0-9A-F]{2})

Character Class[0-9A-F]{2}

{2}matches exactly 2 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

A-Fone character from A (65₁₀) to F (70₁₀) (case sensitive)

$end of string, or before its final line terminator

Detailed match information will be displayed here automatically.

25 tokens

^([0-9A-F]{2}[:]){5}([0-9A-F]{2})$

New

ff:ff:ff:ff:ff:ff    <-> 00:1e:68:51:4f:a9          1        42       0         0       1        42   288.470566000         0.0000