ICMP-type values. ICMP Type Literal 0 echo-reply 3 destination unreachable code 0 = net unreachable 1 = host unreachable 2 = protocol unreachable 3 = port unreachable 4 = fragmentation needed and DF set 5 = source route failed 4 source-quench 5 redirect code 0 = redirect datagrams for the network 1 = redirect datagrams for the host 2 = redirect datagrams for the type of service and network 3 = redirect datagrams for the type of service and host 6 alternate-address 8 echo 9 router-advertisement 10 router-solicitation 11 time-exceeded code 0 = time to live exceeded in transit 1 = fragment reassembly time exceeded 12 parameter-problem 13 timestamp-request 14 timestamp-reply 15 information-request 16 information-reply 17 mask-request 18 mask-reply 31 conversion-error 32 mobile-redirect
IP Ping Text Characters
|
Character |
Description |
|---|---|
|
! |
Each exclamation point indicates receipt of a reply. |
|
. |
Each period indicates the network server timed out while waiting for a reply. |
|
U |
A destination unreachable error PDU was received. |
|
Q |
Source quench (destination too busy). |
|
M |
Could not fragment. |
|
? |
Unknown packet type. |
|
& |
Packet lifetime exceeded. |
IP Traceroute Text Characters
|
Character |
Description |
|---|---|
|
nn msec |
For each node, the round-trip time in milliseconds for the specified number of probes |
|
* |
The probe timed out |
|
A |
Administratively prohibited (example, access-list) |
|
Q |
Source quench (destination too busy) |
|
I |
User interrupted test |
|
U |
Port unreachable |
|
H |
Host unreachable |
|
N |
Network unreachable |
|
P |
Protocol Unreachable |
|
T |
Timeout |
|
? |
Unknown packet type |
