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CEH Certified Ethical Hacker 312-50:ICMP Message types/codes
CEH Certified Ethical Hacker 312-50 ICMP Message types and codes
15
Computer Science
Professional
03/16/2013
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Term
Type 0
 Definition
Echo Reply; Answer to type 8 echo request
Term
Type 4
 Definition
Source Quench; a congestion control message
Term
Type 8
 Definition
ECHO Request; A ping message, requesting an Echo reply
Term
Type 11
 Definition
Type: Time Exceeded: The packet took too long to be routed to the destination (Code 0 is TTL expired).
Term
Type 3, Code 0
 Definition
Network unreachable
Term
Type 3, Code 1
 Definition
Host unreachable (does not, for example, respond to an ARP request)
Term
Type 3, Code 6
 Definition
Network Unknown
Term
Type 3, Code 7
 Definition
Host Unknown
Term
Type 3, code 9
 Definition
Network administratively prohibited
Term
Type 3, code 10
 Definition
Host administratively prohibited
Term
Type 3, code 13
 Definition
Communication administratively prohibited (blocked by, for example, an ACL List or packet filter)
Term
Type 5, code 0
 Definition
Redirect datagram for the network
Term
Type 5, code 1
 Definition
Redirect the datagram for the host
Term
Type 3, Code 2
 Definition
Protocol Unreachable
Term
Type 3, Code 3
 Definition
Port Unreachable
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