Chapter 20 Logs
Table 118 ICMP Notes (continued)
TYPE | CODE | DESCRIPTION |
| 0 | Net unreachable |
| 1 | Host unreachable |
| 2 | Protocol unreachable |
| 3 | Port unreachable |
| 4 | A packet that needed fragmentation was dropped because it was set to Don't |
|
| Fragment (DF) |
| 5 | Source route failed |
4 |
| Source Quench |
| 0 | A gateway may discard internet datagrams if it does not have the buffer space |
|
| needed to queue the datagrams for output to the next network on the route to |
|
| the destination network. |
|
|
|
5 |
| Redirect |
| 0 | Redirect datagrams for the Network |
| 1 | Redirect datagrams for the Host |
| 2 | Redirect datagrams for the Type of Service and Network |
| 3 | Redirect datagrams for the Type of Service and Host |
8 |
| Echo |
| 0 | Echo message |
11 |
| Time Exceeded |
| 0 | Time to live exceeded in transit |
| 1 | Fragment reassembly time exceeded |
12 |
| Parameter Problem |
| 0 | Pointer indicates the error |
13 |
| Timestamp |
| 0 | Timestamp request message |
14 |
| Timestamp Reply |
| 0 | Timestamp reply message |
15 |
| Information Request |
| 0 | Information request message |
16 |
| Information Reply |
| 0 | Information reply message |
| 269 |
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