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Re: FTTH CPE landscape
From: Jay Ashworth <jra () baylink com>
Date: Fri, 5 Aug 2011 10:10:41 -0400 (EDT)

----- Original Message -----
From: "Owen DeLong" <owen () delong com>


A transparent router (sorry, poor choice of terminology on my part) is
a router
which doesn't NAT or become selectively opaque (firewall). In other
words,
it forwards packets and it doesn't do any other arbitrary things to
them at the
whim of the ISP, but, rather passes along what the customer gives it
to the
ISP and vice versa without interference.

It differs from a bridge in that it terminates the collision and
broadcast domains
on either side of it.

It differs from a bridge in that *it requires a chunk of routable IP space
to put behind it*, and a route to go there.  For the specific situation
I posited, a consumer connection, you can get a static IP, but you *will
not* get routable space; you have to go to a business connection for that,
at 2-4 times the cost.

Cheers,
-- jra
-- 
Jay R. Ashworth                  Baylink                       jra () baylink com
Designer                     The Things I Think                       RFC 2100
Ashworth & Associates     http://baylink.pitas.com         2000 Land Rover DII
St Petersburg FL USA      http://photo.imageinc.us             +1 727 647 1274


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