Re: [dhcwg] Re: Last call for <draft-ietf-dhc-csr-05.txt>

"David R. Conrad" <david.conrad@nominum.com> Tue, 28 August 2001 04:36 UTC

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Date: Mon, 27 Aug 2001 21:33:21 -0700
To: Stuart Cheshire <cheshire@apple.com>, "Ted Lemon" <Ted.Lemon@nominum.com>
From: "David R. Conrad" <david.conrad@nominum.com>
Subject: Re: [dhcwg] Re: Last call for <draft-ietf-dhc-csr-05.txt>
Cc: "DHCP discussion list" <dhcwg@ietf.org>
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Stuart,

Not particularly DHCP related, but:

At 07:22 PM 8/27/2001 -0700, Stuart Cheshire wrote:
>10/8 is NOT a CIDR route.

<prefix>/<length> is the standard representation of classless routing 
prefixes.  Classful would simply be 10.0.0.0 since there is an implicit 
assumption of a netmask of 255.0.0.0.  As such, 10/8 would indeed be 
considered CIDR.

>Net 10 is a common private network, and 10/8 is
>the standard classful interpretation.

No.  Classful interpretation does not specify the prefix length as it is 
implied by the first two bits of the address.  Classless require the 
specification of the prefix length.

Rgds,
-drc


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