ECCouncil 312-49v10 - Computer Hacking Forensic Investigator (CHFI-v10)

An Investigator Is checking a Cisco firewall log that reads as follows:

Aug 21 2019 09:16:44: %ASA-1-106021: Deny ICMP reverse path check from 10.0.0.44 to 10.0.0.33 on Interface outside

What does %ASA-1-106021 denote?