2012-11-12 0-127 (Error messages) IETF RFC Publication (Standards track, informational or experimental) 128-255 (Informational messages) IETF RFC Publication (Standards track, informational or experimental) 0 Reserved 1 Destination Unreachable 2 Packet Too Big 3 Time Exceeded 4 Parameter Problem 100 Private experimentation 101 Private experimentation 102-126 Unassigned 127 Reserved for expansion of ICMPv6 error messages 128 Echo Request 129 Echo Reply 130 Multicast Listener Query 131 Multicast Listener Report 132 Multicast Listener Done 133 Router Solicitation 134 Router Advertisement 135 Neighbor Solicitation 136 Neighbor Advertisement 137 Redirect Message 138 Router Renumbering 139 ICMP Node Information Query 140 ICMP Node Information Response 141 Inverse Neighbor Discovery Solicitation Message 142 Inverse Neighbor Discovery Advertisement Message 143 Version 2 Multicast Listener Report 144 Home Agent Address Discovery Request Message 145 Home Agent Address Discovery Reply Message 146 Mobile Prefix Solicitation 147 Mobile Prefix Advertisement 148 Certification Path Solicitation Message 149 Certification Path Advertisement Message 150 ICMP messages utilized by experimental mobility protocols such as Seamoby 151 Multicast Router Advertisement 152 Multicast Router Solicitation 153 Multicast Router Termination 154 FMIPv6 Messages 155 RPL Control Message 156 ILNPv6 Locator Update Message 157 Duplicate Address Request 158 Duplicate Address Confirmation 159-199 Unassigned 200 Private experimentation 201 Private experimentation 255 Reserved for expansion of ICMPv6 informational messages Standards action or IESG approval 0 no route to destination 1 communication with destination administratively prohibited 2 beyond scope of source address 3 address unreachable 4 port unreachable 5 source address failed ingress/egress policy 6 reject route to destination 7 Error in Source Routing Header 0 0 hop limit exceeded in transit 1 fragment reassembly time exceeded 0 erroneous header field encountered 1 unrecognized Next Header type encountered 2 unrecognized IPv6 option encountered 0 0 0 0 0 0 0 0 0 0 0 Router Renumbering Command 1 Router Renumbering Result 255 Sequence Number Reset 0 The Data field contains an IPv6 address which is the Subject of this Query. 1 The Data field contains a name which is the Subject of this Query, or is empty, as in the case of a NOOP. 2 The Data field contains an IPv4 address which is the Subject of this Query. 0 A successful reply. The Reply Data field may or may not be empty. 1 The Responder refuses to supply the answer. The Reply Data field will be empty. 2 The Qtype of the Query is unknown to the Responder. The Reply Data field will be empty. 0 0 0 0 0 RFC Required 0 Reserved 1 Reserved 2 RtSolPr 3 PrRtAdv 4 HI - Deprecated (Unavailable for Assignment) 5 HAck - Deprecated (Unavailable for Assignment) 6-255 Unassigned IETF RFC publication 1 Source Link-layer Address 2 Target Link-layer Address 3 Prefix Information 4 Redirected Header 5 MTU 6 NBMA Shortcut Limit Option 7 Advertisement Interval Option 8 Home Agent Information Option 9 Source Address List 10 Target Address List 11 CGA option 12 RSA Signature option 13 Timestamp option 14 Nonce option 15 Trust Anchor option 16 Certificate option 17 IP Address/Prefix Option 18 New Router Prefix Information Option 19 Link-layer Address Option 20 Neighbor Advertisement Acknowledgment Option 21-22 Unassigned 23 MAP Option 24 Route Information Option 25 Recursive DNS Server Option 26 RA Flags Extension Option 27 Handover Key Request Option 28 Handover Key Reply Option 29 Handover Assist Information Option 30 Mobile Node Identifier Option 31 DNS Search List Option 32 Proxy Signature (PS) 33 Address Registration Option 34 6LoWPAN Context Option 35 Authoritative Border Router Option 36-137 Unassigned 138 CARD Request option 139 CARD Reply option 140-252 Unassigned 253 RFC3692-style Experiment 1 254 RFC3692-style Experiment 2 It is only appropriate to use these values in explicitly configured experiments; they MUST NOT be shipped as defaults in implementations. See for details. Standards Action or IESG Approval 0 Reserved 1 DER Encoded X.501 Name 2 FQDN 3 SHA-1 Subject Key Identifier (SKI) 4 SHA-224 Subject Key Identifier (SKI) 5 SHA-256 Subject Key Identifier (SKI) 6 SHA-384 Subject Key Identifier (SKI) 7 SHA-512 Subject Key Identifier (SKI) 8-252 Unassigned 253-254 Reserved for Experimental Use 255 Reserved Standards Action 0 Reserved 1 X.509v3 Certificate 2-255 Unassigned Standards Action or IESG Approval 0 Reserved 1 AN ID 2 Sector ID 3-255 Unassigned Standards Action or IESG Approval 0 Reserved 1 NAI 2 IMSI 3-255 Unassigned IETF Consensus 0 NOOP 1 Unused 2 Node Name 3 Node Addresses 4 IPv4 Addresses 5-255 Unassigned Standards Action or IESG approval 0 M - Managed Address Configuration Flag 1 O - Other Configuration Flag 2 H - Mobile IPv6 Home Agent Flag 3 Prf - Router Selection Preferences 4 Prf - Router Selection Preferences 5 P - Neighbor Discovery Proxy Flag 6-53 R - Reserved; Available for assignment 54-55 Private Experimentation Standards Action 0 Success 1 Duplicate Address 2 Neighbor Cache Full 3-255 Unassigned Matt Crawford mailto:crawdad&gungnir.fnal.gov 1999-04