From owner-freebsd-doc Thu Dec 19 12:19: 0 2002 Delivered-To: freebsd-doc@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 800ED37B401; Thu, 19 Dec 2002 12:18:59 -0800 (PST) Received: from www.reppep.com (www.reppep.com [66.92.104.200]) by mx1.FreeBSD.org (Postfix) with ESMTP id 47CF343ED8; Thu, 19 Dec 2002 12:18:55 -0800 (PST) (envelope-from pepper@reppep.com) Received: from [129.85.219.160] (salt.rockefeller.edu [129.85.219.160]) by www.reppep.com (Postfix) with ESMTP id DE0BF10033; Thu, 19 Dec 2002 15:18:55 -0500 (EST) Mime-Version: 1.0 X-Sender: pepper@mail.reppep.com Message-Id: In-Reply-To: <20021219151121.20e5803e.trhodes@FreeBSD.org> References: <3E01FA5E.87B6FC46@mitre.org> <20021219195435.GA540@nosferatu.blackend.org> <20021219151121.20e5803e.trhodes@FreeBSD.org> Date: Thu, 19 Dec 2002 15:20:45 -0500 To: Tom Rhodes From: Chris Pepper Subject: Re: FreeBSD Handbook Cc: Marc Fonvieille , freebsd-doc@FreeBSD.org Content-Type: text/plain; charset="us-ascii" ; format="flowed" Sender: owner-freebsd-doc@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org At 3:11 PM -0500 2002/12/19, Tom Rhodes wrote: >On Thu, 19 Dec 2002 20:54:35 +0100 >Marc Fonvieille wrote: > >> According to RFCs (rfc1918 for example), the Handbook is correct: >> >> The Internet Assigned Numbers Authority (IANA) has reserved the >> following three blocks of the IP address space for private >> internets: >> >> 10.0.0.0 - 10.255.255.255 (10/8 prefix) >> 172.16.0.0 - 172.31.255.255 (172.16/12 prefix) >> 192.168.0.0 - 192.168.255.255 (192.168/16 prefix) >> >> We will refer to the first block as "24-bit block", the second as >> "20-bit block", and to the third as "16-bit" block. Note that (in >> pre-CIDR notation) the first block is nothing but a single class A >> network number, while the second block is a set of 16 contiguous >> class B network numbers, and third block is a set of 256 contiguous >> class C network numbers. >> >> The Handbook says "Class C block" not "Class C network", so it's Ok. >> >> Marc >> > >For 10 daemon points, can anyone remember what CIDR is (and stands >for) without looking at any RFC's or books? Classless Internet Domain Routing, IIRC, and I aren't even at net admin! -- Chris Pepper: Rockefeller University: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-doc" in the body of the message