Cisco ASA Audit Event: 302020

Cisco ASA Events

The logs of network perimeter devices such as firewalls, antivirus applications and intrusion prevention systems contain crucial information that helps to pre-emptively block security attacks and breaches. Hence, it's mandatory for you to monitor and audit these logs. Because Cisco ASA provides the combined functionality of all the three, it becomes all the more important to monitor its logs. 

ManageEngine's EventLog Analyzer, a comprehensive log management solution, collects and analyzes the log data from Cisco ASA devices, triggers alerts and generate reports on detected security incidents thus helping you to take suitable measures against security threats, if any. 

Cisco » 302020: Built inbound or outbound ICMP connection

302020: Built inbound or outbound 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-6-302020: Built {in | out} bound ICMP connection for faddr {faddr | icmp_seq_num} [(idfw_user)] gaddr {gaddr | cmp_type} laddr laddr [(idfw_user)] type {type} code {code}.

Event 302020 is generated when an ICMP session is established 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.

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