Bob,

I would have to agree. With CIDR, in most cases you will get 16 usable
subnets and 2 unusable addresses (the network and the broadcast).

ex. 192.168.96.0 255.255.240.0

192.168.96.1 --> 192.168.111.254 all usable
192.168.96.0 network
192.168.111.255 broadcast

I could see the question possibly not wanting the zero subnet if you used
the following:

192.168.0.0 --> 192.168.15.255
where the 192.168.0.X network might be classified as unusable.

This would give you 15 usable subnets...

Tim
CCIE 9015


-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Bob Timmons
Sent: Tuesday, July 09, 2002 7:28 AM
To: [EMAIL PROTECTED]
Subject: Re: Class C summarization question [7:48367]


Firstly, 2 to the power of 4 is 16 (2x2x2x2).

Secondly, regarding Carl's post, would the answer be 14?  I'm not sure the
subnet-zero comes into play with CIDR.  I was under the impression it was
only relevant to subnetting as opposed to summarizing.  Does anyone know for
sure?

> I say 8. 2 to the power of 4




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