Originally Posted By: tanstaafl.
Originally Posted By: Dignan
This page has some explanation a little ways down.
That is a good article. I actually understood a lot of it, and with a few more re-readings I might even have a limited grasp on routers and networking.

Thank you.

No problem, though I like Tom's explanation and I'm going to start using that metaphor to explain this in the future.
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Matt