Dell 9.7(0.0) manual Icmp Message Types

20

ICMP Message Types

This chapter 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.

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		.

636 ICMP Message Types