GEN:SID 1:445
Message ICMP SKIP
Summary This event is generated when an ICMP "SKIP" message is generated.
Impact Informational.  This indicates that an error condition was encountered when requesting the Simple Key Management Protocol for IP (SKIP) protocol to provide keying material.
Detailed Information An ICMP "SKIP" message is issued when a SKIP request to provide keying material fails.  This may occur when the sender makes a request via a SKIP packet for some kind of algorithm, such as encryption, that is not supported by the receiver.  The receiver responds with this ICMP message to indicate that the requested algorithm is not supported.
Affected Systems This traffic should have no adverse impact.
Attack Scenarios This is not an attack unless these messages are sent in volume for an attempted denial of service.
Ease of Attack Simple. There are many packages available to generate ICMP messages.
Corrective Action None.
Additional References