Internet Control Message Protocol (ICMP) Message Types |
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Internet Control Message Protocol (ICMP)
Message Types
This chapter lists and describes the possible internet control message protocol (ICMP) Message Types
resulting from a ping. The first three columns list the possible symbol or type/code. For example, you
would receive a ! or 03 as an echo reply from your ping.
Table 26-1. ICMP Messages and Their Definitions
Symbol
Type
Code
Description
Query
Error
•
Timeout (no reply)
!
0
3
echo reply
•
U
3
destination unreachable:
0
network unreachable
•
1
host unreachable
•
2
protocol unreachable
•
3
port unreachable
•
4
fragmentation needed but don’t fragment bit set
•
5
source route failed
•
6
destination network unknown
•
7
destination host unknown
•
8
source host isolated (obsolete)
•
9
destination network administratively prohibited
•
10
destination host administratively prohibited
•
11
network unreachable for TOS
•
12
host unreachable for TOS
•
13
communication administratively prohibited by
filtering
•
14
host precedence violation
•
15
precedence cutoff in effect
•
C
4
0
source quench
•
5
redirect
•
0
redirect for network
•
1
redirect for host
•
2
redirect for type-of-service and network
•
3
redirect for type-of-service and host
•
8
0
echo request
•
Summary of Contents for PowerEdge M IO Aggregator
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Page 114: ...112 Dynamic Host Configuration Protocol DHCP w w w d e l l c o m s u p p o r t d e l l c o m ...
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Page 178: ...176 IPv4 Routing w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 182: ...180 iSCSI Optimization w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 186: ...184 Link Aggregation Control Protocol LACP w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 190: ...188 Layer 2 w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 210: ...208 Security w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 246: ...244 Uplink Failure Detection UFD w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 262: ...260 Debugging and Diagnostics w w w d e l l c o m s u p p o r t d e l l c o m ...