+^[0-9]{4}-[0-9]{2}-[0-9]{2}T[ .:+0-9]+ [._[:alnum:]-]+ kea-dhcp4: INFO DHCP4_INIT_REBOOT
^[0-9]{4}-[0-9]{2}-[0-9]{2}T[ .:+0-9]+ [._[:alnum:]-]+ kea-dhcp4: INFO DHCP4_LEASE_ADVERT
^[0-9]{4}-[0-9]{2}-[0-9]{2}T[ .:+0-9]+ [._[:alnum:]-]+ kea-dhcp4: INFO DHCP4_LEASE_ALLOC
^[0-9]{4}-[0-9]{2}-[0-9]{2}T[ .:+0-9]+ [._[:alnum:]-]+ kea-dhcp4: INFO DHCPSRV_MEMFILE_LFC_START starting Lease File Cleanup