and check netmask (or prefix) length as well as the destination
address when determining if a route is a "default" or not. This means
that the output from 'route show' will no longer say:
Internet6:
Destination Gateway Flags
default localhost UG
default localhost UG
but instead
Internet6:
Destination Gateway Flags
::/104 localhost UGR
::/96 localhost UGR
which makes much more sense.