python - Regex matching MAC address -

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i'm trying valid mac addresses string:

00:1e:68:51:4f:a9    <-> 00:1a:8c:10:ad:30          9       540       8       336      17       876    90.457130000       198.0143

i've tried , few other regexes:

^([0-9a-f]{2}[:]){5}([0-9a-f]{2})$

regex 101 here:

https://regex101.com/r/ki5ni6/1

i can't figure out why i'm not getting matches.

  • you have remove anchors ^ , $

  • you have add a-z in character set.. or make searches case insensitive (?i) (i modifier)

following work:

([0-9a-fa-f]{2}[:]){5}([0-9a-fa-f]{2})

see demo


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