Section 4 Page 20 ipAddressType: The lack of a multicast type should
be clarified.  I suggest that we include multicast in this object:
interfaces are likely to have multicast addresses configured and
we could include them in the table, therefore creating the need
for a multicast type.

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Bill:

MLD handles multicast, including statically joined groups.
e.g. RFC 3019's
mldCacheSelf.ff.02.00.00.00.00.00.00.00.00.00.00.00.00.00.02.1 = True
to join ff02::2 on interface 1.

