Appendix C. Lists of Reserved Ports, ICMP Types and Codes, and Internet Protocols
ICMP type | Name | Code | Description |
|
| 11 | Destination Network |
|
|
| Unreachable for Type of |
|
|
| Service |
|
| 12 | Destination Host |
|
|
| Unreachable for Type of |
|
|
| Service |
|
| 13 | Communication is |
|
|
| Administratively Prohibited |
4 | Source Quench | 0 | No Code |
5 | Redirect | 0 | Redirect Datagram for the |
|
|
| Network (or subnet) |
|
| 1 | Redirect Datagram for the |
|
|
| Host |
|
| 2 | Redirect Datagram for the |
|
|
| Type of Service and Network |
|
| 3 | Redirect Datagram for the |
|
|
| Type of Service and Host |
6 | Alternate Host Address | 0 | Alternate Address for Host |
7 | Unassigned |
|
|
8 | Echo | 0 | No Code |
9 | Router Advertisement | 0 | No Code |
10 | Router Selection | 0 | No Code |
11 | Time Exceeded | 0 | Time to Live exceeded in |
|
|
| Transit |
|
| 1 | Fragment Reassembly Time |
|
|
| Exceeded |
12 | Parameter Problem | 0 | Pointer indicates the error |
|
| 1 | Missing a Required Option |
|
| 2 | Bad Length |
13 | Timestamp | 0 | No Code |
14 | Timestamp Reply | 0 | No Code |
15 | Information Request | 0 | No Code |
16 | Information Reply | 0 | No Code |
17 | Address Mask Request | 0 | No Code |
18 | Address Mask Reply | 0 | No Code |
19 | Reserved (for Security) |
|
|
Reserved (for Robustness |
|
| |
| Experiment) |
|
|
30 | Traceroute |
|
|
31 | Datagram Conversion Error |
|
|
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