Cisco ASA Audit Event: 302304

302304: Teardown TCP state-bypass 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-6-302304: Teardown TCP state-bypass connection conn_id from initiator_interface: ip/port to responder_interface: ip/port duration, bytes, teardown reason.

Event 302304 is generated when a new TCP-state-bypass connection that would bypass all the TCP state checks, additional security checks and inspections, is deleted. The duration of the connection, the number of bytes transmitted, and the reason for the teardown are specified in the message.

How could you resolve this situation?

Use the 'no set connection advanced-options tcp-state-bypass' command to secure TCP traffic with all the normal TCP state checks as well as all other security checks and inspections.