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Dell Command Line Reference Guide for the S4048–ON System 9.14.2.8

ICMP Message Types

This section lists and describes the possible ICMP message type 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 1. ICMP messages and their definitionsICMP 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 .
9 0 router advertisement .
10 0 router solicitation .
& 11 time exceeded:
0 time-to-live equals 0 during transit .
1 time-to-live equals 0 during reassembly .
12 parameter problem:
1 IP header bad (catchall error) .
2 required option missing .
13 0 timestamp request .
14 0 timestamp reply .
15 0 information request (obsolete) .
16 0 information reply (obsolete) .
17 0 address mask request .
18 0 address mask reply .

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