| GEN:SID | 1:394 |
| Message | ICMP Destination Unreachable Destination Host Unknown |
| Summary | This event is generated when an ICMP Destination Host Unknown datagram is detected on the network. Gateway devices normally generate these ICMP messages when the destination's IP address is unreachable.
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| Impact | This rule generates informational events about the network. Large numbers of these messages on the network could indication routing problems or faulty routing devices.
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| Detailed Information | This ICMP message will be generated when the destination host specified in the datagram is unreachable.
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| Affected Systems | |
| Attack Scenarios | None Known
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| Ease of Attack | Numerous tools and scripts can generate this type of ICMP datagrams.
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| Corrective Action | This rule detects informational network information, no correct action is necessary.
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| Additional References | None
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