The number of input datagrams discarded because
the IPv6 address in their IPv6 header's destination
field was not a valid address to be received at
this entity. This count includes invalid
addresses (e.g., ::0) and unsupported addresses
(e.g., addresses with unallocated prefixes). For entities
which are not IPv6 routers and therefore do not
forward datagrams, this counter includes datagrams
discarded because the destination address was not
a local address.