On Wed, 31 Dec 1997, Henry B. Hotz wrote:

> While the class A/B/C/D distinction restricts the netmask it does not
> determine it.  192... is a class C, but it could have a netmask of
> 255.255.255.128 255.255.255.192, 255.255.255.224, 255.255.255.240, etc.
> (If you don't see the pattern then convert the last number to binary.)

Actually, since all of the 192.168.*.* networks are reserved, you could
use any mask that starts with 255.255 - there's no longer any reason
that 192.168 has to be looked at as 256 separate Class C networks;  it
might just as well look like a single Class B network, or anything in
between.  (Of course, if you wanted a Class B, you might just as well
use 172.16.*.* through 172.31.*.* but that's another story entirely.)

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