ICMPv6 Types Codes

ICMPv6 Types and Codes

Types 0-127 are defined as error messages, but only 0-4 are currently defined in RFC4433.

TYPE  DESCRIPTION                   CODE                    
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0     Reserved
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1     Destination Unreachable
                                    0 - no route to destination
                                    1 - communication with destination administratively prohibited
                                    2 - beyond scope of source address
                                    3 - address unreachable
                                    4 - port unreachable
                                    5 - source address failed ingress/egress policy
                                    6 - reject route to destination
                                    7 - Error in Source Routing Header
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2     Packet Too Big
                                    0 - Packet too big
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3     Time Exceeded
                                    0 - hop limit exceeded in transit
                                    1 - fragment reassembly time exceeded
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4     Parameter Problem 
                                    0 - erroneous header field encountered
                                    1 - unrecognized Next Header type encountered
                                    2 - unrecognized IPv6 option encountered
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