GEN:SID 1:395
Message ICMP Destination Unreachable Destination Network Unknown
Summary This event is generated when an ICMP Destination Network Unknown datagram is detected on the network.  Gateway devices normally generate these ICMP messages when the destination network is unreachable.
Impact This ICMP message will be generated when the destination network specified in the datagram is unreachable.
Detailed Information This rule generates informational events about the network.  Large numbers of these messages on the network could indication routing problems or faulty routing
devices.
Affected Systems  
Attack Scenarios None Known
Ease of Attack Numerous tools and scripts can generate these types of ICMP datagrams.
Corrective Action This rule detects informational network information, no correct action is necessary.
Additional References None