From owner-freebsd-isp Mon Sep 2 22:03:53 1996 Return-Path: owner-isp Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id WAA03073 for isp-outgoing; Mon, 2 Sep 1996 22:03:53 -0700 (PDT) Received: from panda.hilink.com.au (panda.hilink.com.au [203.2.144.5]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id WAA03064 for ; Mon, 2 Sep 1996 22:03:48 -0700 (PDT) Received: (from danny@localhost) by panda.hilink.com.au (8.7.5/8.7.3) id PAA04283; Tue, 3 Sep 1996 15:03:27 +1000 (EST) Date: Tue, 3 Sep 1996 15:03:23 +1000 (EST) From: "Daniel O'Callaghan" To: Ulf Zimmermann cc: Joe Lee , isp@freebsd.org Subject: Re: is subnet #0 available for use? In-Reply-To: <960902212108.ZM2820@Gatekeeper.Lamb.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-isp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Mon, 2 Sep 1996, Ulf Zimmermann wrote: > It depends on the hardware/software you use. Many older TCPIP implementations > will not allow you to use subnet #0. But FreeBSD will allow you. On Ciscos you > will need to set an extra parameter. You'll also not get gated to work properly with subnet "all zeros" or subnet "all ones". IF you are interested in gated, that is. The way to define subnets with the maximum number of hosts is to define them with 4,8,16,32,64,64,32,16,8,4 hosts, and discard the 4 hosts at each end (0,1,2,3,252,253,254,255) Danny