Logged In: NO

thats not ideal either. sometimes dynamic hosts have broken
hostnames adn they will end up with too large accesslists.

using /24 doesnt seem ideal either. /16 seem to large.

maybe using /24 for a short time approach seems best, with
another cool fix at the other end. (for example some SQL db
which rips off RIR Data and then comparing the used ip
against allocations or so - the first part shouldnt be the
problem, ive done that with ripe before.).