Cisco ASA Audit Event: 109010

109010: Authentication failed due to many pending requests

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-3-109010: Auth from inside_address/inside_port to outside_address/outside_port failed (too many pending auths) on interface interface_name.

Event 109010 is generated when an authentication request cannot be processed because the server has many pending requests. The inside address or port number, the outside address or port number, and the interface name are specified in the message.

How could you resolve this situation?

Check if the authentication server is slow to respond to requests. Enable the Flood Defender feature with the 'floodguard enable' command.

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