> From: Mark Andrews <marka(_at_)isc(_dot_)org>
> The CGN boxes are new. The customer boxes which are being allocated the
> addresses are old. Lots of these boxes will not work with a 240/4
> address.
Here's a question, though: would a mix of a smaller block of 'classic' IPv4
space, _along with_ a big chunk of 240/4, be of any use?
I ask because I gather there are a lot of situations where e.g. a cable modem
has an ISP-local address on its ISP-facing side, and a global IP address
(which the customer gets) on the customer side. (I see this in checking out my
path to the Internet from my house - I see some 10.xx addresses on the other
side of the cable modem.) Could a block of 240/ space be used for things like
that?
Sure, the 240/ space wouldn't be useful as a source of addresses for
_customer-owned_ equipment - but could it be useful elsewhere inside an ISP's
network? (And perhaps also as a source of addresses for CPE equipment which
_will_ tolerate being given a 240/ space address, although I concede that may
be very few boxes, at least at first.)
Noel
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