Date: Mon, 20 Mar 1995 11:21:12 -0600 (CST)
> From: karl@mcs.com (Karl Denninger)
> To: nanog@merit.edu
> > > Taking a relatively small chunk of the remaining address space
> > > (say, 210.*.*.*) gives us 64k addresses to hand out in convenient
> >
> > That's 16M addresses, not 64K addresses. We should not equivocate "addre
sses"
> > and "Class C networks". 210.*.*.* has 2^24 (minus subnet zero and broadc
ast
> > lossage) addresses -- 16M. 210.*.*.* has 2^16 "Class C networks" -- 64K.
We
> > must not assume that every customer will get a Class C -- many will get j
ust a
> > subnet since they will only have a handful of hosts. I know of several
> > providers who are chopping things up on nybble boundaries (16 hosts/net,
or
> > actually 14 with the subnet zero and broadcast taken out).
>
> Not me!
>
> I consider a "Class B equivalent" to be 256 NETWORKS, by the common use of
> the term, but 65K *addresses*.
1 Class-B-sized prefix = 256 Class-C-sized prefixes.
A "network" could be a Class A, B, C, etc., network, or a CIDR network,
etc.
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