HP VCX Software manual Unreachable for Type

Appendix C. Lists of Reserved Ports, ICMP Types and Codes, and Internet Protocols

ICMP type	Name	Code	Description
		11	Destination Network
			Unreachable for Type of
			Service
		12	Destination Host
			Unreachable for Type of
			Service
		13	Communication is
			Administratively Prohibited
4	Source Quench	0	No Code
5	Redirect	0	Redirect Datagram for the
			Network (or subnet)
		1	Redirect Datagram for the
			Host
		2	Redirect Datagram for the
			Type of Service and Network
		3	Redirect Datagram for the
			Type of Service and Host
6	Alternate Host Address	0	Alternate Address for Host
7	Unassigned
8	Echo	0	No Code
9	Router Advertisement	0	No Code
10	Router Selection	0	No Code
11	Time Exceeded	0	Time to Live exceeded in
			Transit
		1	Fragment Reassembly Time
			Exceeded
12	Parameter Problem	0	Pointer indicates the error
		1	Missing a Required Option
		2	Bad Length
13	Timestamp	0	No Code
14	Timestamp Reply	0	No Code
15	Information Request	0	No Code
16	Information Reply	0	No Code
17	Address Mask Request	0	No Code
18	Address Mask Reply	0	No Code
19	Reserved (for Security)
20-29	Reserved (for Robustness
	Experiment)
30	Traceroute
31	Datagram Conversion Error

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