ICMP
0
Echo Reply
1
Unassigned
2
Unassigned
3
Destination Unreachable
4
Source Quench (Deprecated)
5
Redirect
6
Alternate Host Address (Deprecated)
7
Unassigned
8
Echo
9
Router Advertisement
10
Router Selection
11
Time Exceeded
12
Parameter Problem
13
Timestamp
14
Timestamp Reply
15
Information Request (Deprecated)
16
Information Reply (Deprecated)
17
Address Mask Request (Deprecated)
18
Address Mask Reply (Deprecated)
19
Reserved (for Security)
20-29
Unassigned
30
Traceroute
31-39
Unassigned
40
Photuris (obsolete)
41-49
Unassigned
50
Mobile Host Redirect (obsolete)
51-59
Unassigned
60
Inverse Address Lookup (obsolete)
61-69
Unassigned
70
Photuris (obsolete)
71-79
Unassigned
80
IPv6 Where-Are-You
81
IPv6 I-Am-Here
82
Mobile Node Redirect
83-99
Unassigned
100
Traceroute (IPv6)
101-119
Unassigned
120
IPv6 Router Advertisement
121
IPv6 Router Solicitation
122
Neighbor Solicitation
123
Neighbor Advertisement
124
Redirect (IPv6)
125-254
Unassigned
255
Reserved
Last updated