@LaurentB I am real sorry. Have been very busy in the last days and could’t find the time to answer. To delete those entries form the hostMAC table follow this:
shell> mysql -u root -p
Enter password:
...
mysql> use fog;
Database changed
mysql> DELETE FROM hostMAC WHERE hmMAC LIKE '%00:09:0F%';
After that you might want to check if there is still a MAC entry for that host - hope there is:
mysql> SELECT hmID,hmHostID,hmMAC,hmPending,hmPrimary FROM hostMAC WHERE hmHostID = 5;