Annexe C. Types ICMP

Voici un liste complète des types ICMP. Notez la référence qui pointe vers la RFC ou la personne qui a introduit le type et le code. Pour une liste complètement à jour des types et des codes ICMP, voir le document icmp-parameters sur Internet Assigned Numbers Authority.

[Note] Note

Iptables et netfilter utilisent le type ICMP 255 en interne car il n'est réservé pour aucun usage réel. Si vous placez une règle comme iptables -A INPUT -p icmp --icmp-type 255 -j DROP, ceci DROP tous les paquets ICMP. C'est, en d'autres termes, utilisé pour sélectionner tous les types ICMP.

Tableau C.1. ICMP types

TYPE CODE Description Requête Erreur Référence
0 0 Echo Reply x RFC792
3 0 Network Unreachable x RFC792
3 1 Host Unreachable x RFC792
3 2 Protocol Unreachable x RFC792
3 3 Port Unreachable x RFC792
3 4 Fragmentation needed but no frag. bit set x RFC792
3 5 Source routing failed x RFC792
3 6 Destination network unknown x RFC792
3 7 Destination host unknown x RFC792
3 8 Source host isolated (obsolete) x RFC792
3 9 Destination network administratively prohibited x RFC792
3 10 Destination host administratively prohibited x RFC792
3 11 Network unreachable for TOS x RFC792
3 12 Host unreachable for TOS x RFC792
3 13 Communication administratively prohibited by filtering x RFC1812
3 14 Host precedence violation x RFC1812
3 15 Precedence cutoff in effect x RFC1812
4 0 Source quench RFC792
5 0 Redirect for network RFC792
5 1 Redirect for host  
5 2 Redirect for TOS and network RFC792
5 3 Redirect for TOS and host RFC792
8 0 Echo request x RFC792
9 0 Router advertisement - Normal router advertisement RFC1256
9 16 Router advertisement - Does not route common traffic RFC2002
10 0 Route selection RFC1256
11 0 TTL equals 0 during transit x RFC792
11 1 TTL equals 0 during reassembly x RFC792
12 0 IP header bad (catchall error) x RFC792
12 1 Required options missing x RFC1108
12 2 IP Header bad length x RFC792
13 0 Timestamp request (obsolete) x RFC792
14   Timestamp reply (obsolete) x RFC792
15 0 Information request (obsolete) x RFC792
16 0 Information reply (obsolete) x RFC792
17 0 Address mask request x RFC950
18 0 Address mask reply x RFC950
20-29 Reserved for robustness experiment Zaw-Sing Su
30 0 Traceroute x RFC1393
31 0 Datagram Conversion Error x RFC1475
32 0 Mobile Host Redirect David Johnson
33 0 IPv6 Where-Are-You x Bill Simpson
34 0 IPv6 I-Am-Here x Bill Simpson
35 0 Mobile Registration Request x Bill Simpson
36 0 Mobile Registration Reply x Bill Simpson
39 0 SKIP Tom Markson
40 0 Photuris RFC2521