Cisco ASA Audit Event: 209005

209005: Too many elements in a fragment set

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-4-209005: Discard IP fragment set with more than number elements: src = Too many elements are in a fragment set.

Event 209005 is generated when the ASA disallows any IP packet that is fragmented into more than 24 fragments.For more information,see the fragment command in the command reference guide.

How could you resolve this situation?

If the message keeps recurring, it might denote an intrusion event in progress. Contact the remote peer administrator or upstream provider.

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