Cisco Catalyst 2000 Configuration Handbook page 304

Table B-2 Assigned ICMP Type Numbers, Codes, Descriptions, and Associated RFCs
Type Code Name
0 Alternate Address for Host
7 Unassigned
8 Echo
9 Router Advertisement
10 Router Solicitation
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
14 Timestamp Reply
15 Information Request
16 Information Reply
17 Address Mask Request
18 Address Mask Reply
19 Reserved (for Security)
20 to 29 Reserved (for Robustness Experiment)
30 Traceroute
31 Datagram Conversion Error
32 Mobile Host Redirect
33 IPv6 Where-Are-You
34 IPv6 I-Am-Here
35 Mobile Registration Request
36 Mobile Registration Reply
37 Domain Name Request
38 Domain Name Reply
Appendix B: Well-known Protocol, Port, and Other Numbers 283
Reference
RFC 792
RFC 1256
RFC 1256
RFC 792
RFC 792
RFC 1108
RFC 792
RFC 792
RFC 792
RFC 792
RFC 950
RFC 950
RFC 1393
RFC 1475