I don't want to go too far down this road, as it touches sensitive network
architecture issues, but I think you're thinking of this in terms of a
box. Please think, instead, of a regional network with failover
capabilities and widely distributed customers. The aggregate need is
(at least) a /10 for a large number of providers.
Chris
On 12/8/11 12:35 AM, "Måns Nilsson" <mansaxel(_at_)besserwisser(_dot_)org>
wrote:
The space is going to be reused several times anyway, and NAT (be it
carrier, enterprise or SOHO) breaks pretty badly when session space
is exhausted. It does not make sense to have much more than a, say,
/16 behind each. (CGN is just NAT in a NEBS certified enclosure with an
expensive support contract; the basic b0rkenedness remains.)
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