yeah carrier routers.
i know the table is only a text file type thing, but i was thinking, with all the routers and new ISP's, and new subscribers what if looking up through a huge table takes too long, and slows down a conection.
i guess my thought is just a therotical one (pardon the oclub pun LOL).
someday there may not be enough routers, and they can not sort through the traffic fast enough is all.