3Com Version 4.3 - page 139

AppendixC. Lists of Reserved Ports, ICMP Types and Codes, and Internet Protocols
ICMP type Name Code Description
5 SourceRoute Failed
6 DestinationNetwork Unknown
7 DestinationHost Unknown
8 SourceHost Isolated
9 Communicationwith Destination
Networkis Administratively
Prohibited
10 Communicationwith Destination
Hostis Administratively Prohibited
11 DestinationNetwork Unreachable for
Typeof Service
12 DestinationHost Unreachable for
Typeof Service
4 SourceQuench 0 NoCode
5 Redirect 0 RedirectDatagram for the Network
(orsubnet)
1 RedirectDatagram for the Host
2 RedirectDatagram for the Type of
Serviceand Network
3 RedirectDatagram for the Type of
Serviceand Host
6 AlternateHost Address 0 AlternateAddress for Host
7 Unassigned
8 Echo 0 NoCode
9 RouterAdvertisement 0 NoCode
10 RouterSelection 0 NoCode
11 TimeExceeded 0 Time to Live exceeded in Transit
1 FragmentReassembly Time
Exceeded
12 ParameterProblem 0 Pointerindicates the error
1 Missinga Required Option
2 BadLength
13 Timestamp 0 NoCode
14 TimestampReply 0 NoCode
15 InformationRequest 0 NoCode
16 InformationReply 0 NoCode
17 AddressMask Request 0 No Code
18 AddressMask Reply 0 NoCode
19 Reserved(for Security)
20-29 Reserved(for Robustness
Experiment)
30 Traceroute
31 DatagramConversion Error
32 MobileHost Redirect
33 IPv6Where-Are-You
34 IPv6I-Am-Here
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