Cisco ASA Audit Event: 105506

105506: Unable to create socket on port for failover connection or load balancer probes

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-2-105506: (Primary|Secondary) Unable to create socket on port port for (failover connection | load balancer probes), error: error_string.

Event 105506 is generated when an internal error is encountered while attempting to create a socket for the failover connection or while responding to Azure load balancer probes.

How could you resolve this situation?

Collect details about the events leading up to the error and contact Cisco TAC.

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.