User Guide 19.11 documentation

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ICMP MessagesĀ¶

This appendix table describes the association between ICMP type/code couples and ICMP messages.

ICMP Type ICMP Code ICMP Message
0 0 Echo Reply
3
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Network Unreachable
Host Unreachable
Protocol Unreachable
Port Unreachable
Fragmentation Needed and Don’t Fragment was Set
Source Route Failed
Destination Network Unknown
Destination Host Unknown
Source Host Isolated
Communication with Destination Network is Administratively Prohibited
Communication with Destination Host is Administratively Prohibited
Destination Network Unreachable for Type of Service
Destination Host Unreachable for Type of Service
Communication Administratively Prohibited
Host Precedence Violation
Precedence cutoff in effect
4 0 Source Quench
5
0
1
2
3
Redirect Datagram for the Network (or subnet)
Redirect Datagram for the Host
Redirect Datagram for the Type of Service and Network
Redirect Datagram for the Type of Service and Host
6 0 Alternate Address for Host
8 0 Echo
9
0
16
Normal router advertisement
Does not route common traffic
10 0 Router Selection
11
0
1
Time to Live exceeded in Transit
Fragment Reassembly Time Exceeded
12
0
1
2
Pointer indicates the error
Missing a Required Option
Bad Length
13 0 Timestamp
14 0 Timestamp Reply
15 0 Information Request
16 0 Information Reply
17 0 Address Mask Request
18 0 Address Mask Reply
19 0 Reserved (for Security)
20 0 Reserved (for Robustness Experiment)
21 0 Reserved (for Robustness Experiment)
22 0 Reserved (for Robustness Experiment)
23 0 Reserved (for Robustness Experiment)
24 0 Reserved (for Robustness Experiment)
25 0 Reserved (for Robustness Experiment)
26 0 Reserved (for Robustness Experiment)
27 0 Reserved (for Robustness Experiment)
28 0 Reserved (for Robustness Experiment)
29 0 Reserved (for Robustness Experiment)
30 0 Traceroute
31 0 Datagram Conversion Error
32 0 Mobile Host Redirect
33 0 IPv6 Where-Are-You
34 0 IPv6 I-Am-Here
35 0 Mobile Registration Request
36 0 Mobile Registration Reply
39 0 SKIP
40
0
1
2
3
4
5
Bad SPI
Authentication Failed
Decompression Failed
Decryption Failed
Need Authentication
Need Authorization
128 0 IPv6 Echo Request
129 0 IPv6 Echo Reply
130 0 IPv6 Multicast Listener Query
131 0 IPv6 Multicast Listener Report
132 0 IPv6 Multicast Listener Done
133 0 IPv6 Router Solicitation
134 0 IPv6 Router Advertisement
135 0 IPv6 Neighbor Solicitation
136 0 IPv6 Neighbor Advertisement
137 0 IPv6 Redirect Message
138
0
1
255
Command
Result
Reset
139
0
1
2
Subject
Subject or Empty
Ipv4 Subject
140
0
1
2
Successful
Refused
Unknown
141 0 IPv6 Inverse Neighbor Discovery Solicitation Message
142 0 IPv6 Inverse Neighbor Discovery Advertisement Message
144 0 IPv6 Home Agent Address Discovery Request Message
145 0 IPv6 Home Agent Address Discovery Reply Message
146 0 IPv6 Mobile Prefix Solicitation
147 0 IPv6 Mobile Prefix Advertisement
148 0 IPv6 Certification Path Solicitation Message
149 0 IPv6 Certification Path Advertisement Message
151 0 IPv6 Multicast Router Advertisement
152 0 IPv6 Multicast Router Solicitation
153 0 IPv6 Multicast Router Termination
154 0 FMIPv6 Messages
253 0 RFC3692-style Experiment 1
254 0 RFC3692-style Experiment 2