The Internet Control Message Protocol (ICMPv6) uses many messages identified by a type and code field (see RFC 4443). Error messages use message types 0 to 127. Informational messages use message types 128 to 255. The following table provides the type and code reference.
|
Type |
Name |
Code |
Reference |
|---|---|---|---|
|
1 |
Destination Unreachable |
0—no route to destination 1—communication with destination administratively prohibited 2—(not assigned) 3—address unreachable 4—port unreachable |
RFC 4443 |
|
2 |
Packet Too Big |
N/A |
RFC 4443 |
|
3 |
Time Exceeded |
0—hop limit exceeded in transit 1—fragment reassembly time exceeded |
RFC 4443 |
|
4 |
Parameter Problem |
0—erroneous header field encountered 1—unrecognized Next Header type encountered 2—unrecognized IPv6 option encountered |
RFC 4443 |
|
128 |
Echo Request |
N/A |
RFC 4443 |
|
129 |
Echo Reply |
N/A |
RFC 4443 |
|
130 |
Multicast Listener Query |
N/A |
|
|
131 |
Multicast Listener Report |
N/A |
|
|
132 |
Multicast Listener Done |
N/A |
|
|
133 |
Router Solicitation |
N/A |
RFC 4861 |
|
134 |
Router Advertisement |
N/A |
RFC 4861 |
|
135 |
Neighbor Solicitation |
N/A |
RFC 4861 |
|
136 |
Neighbor Advertisement |
N/A |
RFC 4861 |
|
137 |
Redirect Message |
N/A |
RFC 4861 |
|
138 |
Router Renumbering |
0—router renumbering command 1—router renumbering result 255—sequence number reset |
|
|
139 |
ICMP Node Information Query |
N/A |
|
|
140 |
ICMP Node Information Response |
N/A |
|
|
141 |
Inverse neighbor discovery Solicitation Message |
N/A |
RFC 3122 |
|
142 |
Inverse neighbor discovery Advertisement Message |
N/A |
RFC 3122 |
|
143 |
Version 2 Multicast Listener Report |
N/A |
RFC 3810 |
|
144 |
Home Agent Address Discovery Request Message |
N/A |
RFC 3775 |
|
145 |
Home Agent Address Discovery Reply Message |
N/A |
RFC 3775 |
|
146 |
Mobile Prefix Solicitation |
N/A |
RFC 3775 |
|
147 |
Mobile Prefix Advertisement |
N/A |
RFC 3775 |