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Type 0
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Echo Reply; Answer to type 8 echo request
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Type 4
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Source Quench; a congestion control message
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Type 8
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ECHO Request; A ping message, requesting an Echo reply
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Type 11
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Type: Time Exceeded: The packet took too long to be routed to the destination (Code 0 is TTL expired).
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Type 3, Code 0
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Network unreachable
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Type 3, Code 1
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Host unreachable (does not, for example, respond to an ARP request)
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Type 3, Code 6
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Network Unknown
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Type 3, Code 7
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Host Unknown
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Type 3, code 9
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Network administratively prohibited
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Type 3, code 10
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Host administratively prohibited
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Type 3, code 13
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Communication administratively prohibited (blocked by, for example, an ACL List or packet filter)
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Type 5, code 0
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Redirect datagram for the network
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Type 5, code 1
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Redirect the datagram for the host
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Type 3, Code 2
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Protocol Unreachable
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Type 3, Code 3
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Port Unreachable
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