Acronym for Internet Control Message Protocol defined in RFC:792
These are messages generated by an IP stack. They have an IP protocol type of 0x01.
The different types of ICMP are:
ICMP Type | Description |
0 | ICMP Echo reply |
1 | |
2 | |
3 | DestinationUnreachable |
4 | SourceQuench? |
5 | ICMPRedirect |
6 | AlternativeHostAddress |
7 | |
8 | ICMP Echo Request |
9 | RouterAdvertisement? |
10 | RouterSelection? |
11 | TimeToLiveExceeded |
12 | ParameterProblem? |
13 | ICMPTimestamp |
14 | ICMPTimestampReply |
15 | InformationRequest? |
16 | InformationReply? |
17 | AddressMaskRequest |
18 | AddressMaskReply |
19-29 | |
30 | Traceroute |
31 | DatagramConversionError? |
32 | MobileHostRedirect? |
33 | IPv6 WhereAreYou? |
34 | IPv6 IAmHere? |
35 | MobileRegistrationRequest? |
36 | MobileRegistrationReply? |
37 | DomainNameRequest? |
38 | DomainNameReply? |
39 | SKIP |
33 pages link to ICMP: