This may make some Supermicro folks happy.

From
https://peterkleissner.com/2018/05/27/reverse-engineering-supermicro-ipmi/

echo -n 'MAc-Addr-here' | xxd -r -p | openssl dgst -sha1 -mac HMAC -macopt
hexkey:8544E3B47ECA58F9583043F8 | awk '{print $2}' | cut -c 1-24

-- 
A mouse trap, placed on top of your alarm clock, will prevent you from
rolling over and going back to sleep after you hit the snooze button.

Stephen