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ICMP Message Type
Relevant ICMP Message Types
| Question | Answer |
|---|---|
| Type 0 | Echo Reply |
| Type 3 | Destination Unreachable |
| Type 4 | Source Quench |
| Type 5 | Redirect |
| Type 8 | Echo Request |
| Type 11 | Time Exceeded |
| Type 3 Code 0 | Destination Network Unreachable |
| Type 3 Code 1 | Destination Host Unreachable |
| Type 3 Code 6 | Network Unknown |
| Type 3 Code 7 | Host Unknown |
| Type 3 Code 9 | Network Administratively Prohibited |
| Type 3 Code 10 | Host Administratively Prohibited |
| Type 3 Code 13 | Communication Administratively Prohibited |
| Type 3 Code 0 | Redirect Datagram for Network |
| Type 3 Code 1 | Redirect Datagram for Host |
| Type 11 Code 0 | TTL Exceeded |