_ (NONE, "valid packets") \
_ (UNKNOWN_TYPE, "unknown type") \
_ (INVALID_CODE_FOR_TYPE, "invalid code for type") \
_ (INVALID_HOP_LIMIT_FOR_TYPE, "hop_limit != 255") \
_ (LENGTH_TOO_SMALL_FOR_TYPE, "payload length too small for type") \
_ (OPTIONS_WITH_ODD_LENGTH, \
"total option length not multiple of 8 bytes") \
_ (OPTION_WITH_ZERO_LENGTH, "option has zero length") \
_ (ECHO_REPLIES_SENT, "echo replies sent") \
_ (DST_LOOKUP_MISS, "icmp6 dst address lookup misses") \
_ (DEST_UNREACH_SENT, "destination unreachable response sent") \
_ (TTL_EXPIRE_SENT, "hop limit exceeded response sent") \
_ (PARAM_PROBLEM_SENT, "parameter problem response sent") \
_ (
DROP,
"error message dropped")