A slight call to order (Re: Internic address allocation policy )
Steven J. Richardson
sjr at merit.edu
Mon Mar 20 18:12:30 UTC 1995
> Date: Mon, 20 Mar 1995 11:21:12 -0600 (CST)
> From: karl at mcs.com (Karl Denninger)
> To: nanog at 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
> > and "Class C networks". 210.*.*.* has 2^24 (minus subnet zero and broadc
> > lossage) addresses -- 16M. 210.*.*.* has 2^16 "Class C networks" -- 64K.
> > must not assume that every customer will get a Class C -- many will get j
> > 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,
> > 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,
> Karl Denninger (karl at MCS.Net)| MCSNet - The Finest Internet Connectivity
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