From owner-freebsd-net@FreeBSD.ORG Wed Aug 27 07:35:42 2003 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7CE3D16A4BF for ; Wed, 27 Aug 2003 07:35:42 -0700 (PDT) Received: from mithrin.mh57.de (mh57.com [217.160.185.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id 609A543F93 for ; Wed, 27 Aug 2003 07:35:41 -0700 (PDT) (envelope-from martin@mh57.de) Received: from pd951a27e.dip.t-dialin.net ([217.81.162.126] helo=pegasus.ten.mh57.net) by mithrin.mh57.de with asmtp (TLSv1:DES-CBC3-SHA:168) (Exim 3.35 #1) id 19s1Oc-00086n-00; Wed, 27 Aug 2003 16:35:39 +0200 Received: from martin by pegasus.ten.mh57.net with local (Exim 3.35 #1) id 19s1OU-0001jF-00; Wed, 27 Aug 2003 16:35:30 +0200 Date: Wed, 27 Aug 2003 16:35:30 +0200 From: Martin Hermanowski To: Christoffer Pio Message-ID: <20030827143530.GE24978@mh57.de> References: <3F4CBA6A.5AA7DEB0@cvt.dk> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="GPJrCs/72TxItFYR" Content-Disposition: inline In-Reply-To: <3F4CBA6A.5AA7DEB0@cvt.dk> User-Agent: Mutt/1.5.4i X-Authenticated-ID: martin cc: freebsd-net@freebsd.org Subject: Re: subnetting C class into /26 /25 /26, why can this be done? X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 27 Aug 2003 14:35:42 -0000 --GPJrCs/72TxItFYR Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Aug 27, 2003 at 04:04:26PM +0200, Christoffer Pio wrote: > Is it not possible to subnet a C class into 3 nets, like >=20 > 0-63 x.x.x.0/26 > 64-191 <-- Offending network (?) x.x.x.64/26 + x.x.x.128/26 This cannot be written as a /25, and there is no netmask that would match. > 192-255 x.x.x.192/26 > If so, why is this? LLAP, Martin --GPJrCs/72TxItFYR Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE/TMGymGb6Npij0ewRAqa0AJ4ygm9LXhpqZzCIyHD15aZg4fTr2wCfYx+N /7xeiBEDbfcZcI6MSjHplgc= =tAhh -----END PGP SIGNATURE----- --GPJrCs/72TxItFYR--