The value of tRPOperInetPrefixListType indicates
the type of the prefix length entry.
exact (1) - a route's prefix/length must match the
prefix-list entry exactly in order for an entry to
be considered a match.
longer (2) - a route's prefix/length must match the
defined prefix AND have a length that is an exact match
or longer in order for an entry to be considered a match.
through (3) - a route's prefix/length must match the
defined prefix AND have a length that is an exact match or
longer up to and including the defined maximum length in
order for an entry to be considered a match.
range (4) - a route's prefix/length must match the
defined prefix AND have a length that is greater than or
equal to the length defined by tRPOperInetPrefixListBeginLen
and less than or equal to the length defined by
tRPOperInetPrefixListThroughLen in order for an entry to
be considered a match.