Cisco ASA Audit Event: 302021

302021: Teardown ICMP connection

Cisco ASA is a security device that provides the combined capabilities of a firewall, an antivirus, and an intrusion prevention system. It also facilitates virtual private network (VPN) connections. It helps to detect threats and stop attacks before they spread through the network.

Message: %ASA-6-302021: Teardown ICMP connection for faddr {faddr |icmp_seq_num} [(idfw_user)] gaddr {gaddr | cmp_type} laddr laddr [(idfw_user)] (981) type {type} code {code}.

Event 302021 is generated when an ICMP connection is removed in the fast-path when stateful ICMP had been enabled using the 'inspect icmp' command. The message contains information on the:

  • IP address of the foreign, global and local host.
  • Name of the identity firewall user.
  • The user name associated with the host from where the connection had been initiated.
  • ICMP type and code.

How could you resolve this situation?

This event does not require any action.

Cisco ASA Auditing Tool

EventLog Analyzer is a comprehensive log management software with which you can centrally collect, analyze, and manage logs from all the different log sources in your network. You also get reports and alerts on your network security, making it a power-packed IT security tool.