Cisco ASA Audit Event: 201003

201003: Embryonic limit exceeded

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-2-201003:Embryonic limit exceeded nconns/elimit foroutside_address/outside_port(global_address)inside_address/inside_port on interface interface_name.

Event 201003 is generated when the number of embryonic connections from a specific foreign address with a particular static global address to a particular local address exceeds the embryonic limit. The ASA attempts to accept them anyway, but puts a time limit on the connections. This situation allows some connections to succeed even if the ASA is very busy. The maximum number of embyronic connections and the maximum number of embryonic connections specified in the static or nat command are specified in the message.

How could you resolve this situation?

Use the 'show static' command to check the limit imposed on embryonic connections to a static address.

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