From owner-freebsd-questions Tue Apr 15 08:50:41 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id IAA17278 for questions-outgoing; Tue, 15 Apr 1997 08:50:41 -0700 (PDT) Received: from cs.iastate.edu (cs.iastate.edu [129.186.3.1]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id IAA17273 for ; Tue, 15 Apr 1997 08:50:39 -0700 (PDT) Received: from sunfire.cs.iastate.edu (sunfire.cs.iastate.edu [129.186.3.46]) by cs.iastate.edu (8.7.4/8.7.1) with ESMTP id KAA20855 for ; Tue, 15 Apr 1997 10:50:33 -0500 (CDT) Received: from localhost (ghelmer@localhost) by sunfire.cs.iastate.edu (8.7.4/8.7.1) with SMTP id KAA16149 for ; Tue, 15 Apr 1997 10:50:32 -0500 (CDT) X-Authentication-Warning: sunfire.cs.iastate.edu: ghelmer owned process doing -bs Date: Tue, 15 Apr 1997 10:50:30 -0500 (CDT) From: Guy Helmer To: freebsd-questions@freebsd.org Subject: Subnets of all 0's/all 1's Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk I'm helping a FreeBSD system administrator whose class C network is subnetted at 255.255.255.192. He would dearly like to use the subnet with systems numbered x.x.x.1-63; I have held up RFC 950 to say "this isn't allowed", but the RFC doesn't say specifically why this wouldn't work. Should FreeBSD be able to support a network with a subnet of all zeros or all ones? If not, could someone give a short technical explanation as to why? Thanks, Guy Helmer Guy Helmer, Computer Science Grad Student, Iowa State - ghelmer@cs.iastate.edu http://www.cs.iastate.edu/~ghelmer