From owner-freebsd-questions@FreeBSD.ORG Tue Mar 7 18:25:58 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 97B5D16A424 for ; Tue, 7 Mar 2006 18:25:58 +0000 (GMT) (envelope-from dthomas53@gmail.com) Received: from uproxy.gmail.com (uproxy.gmail.com [66.249.92.194]) by mx1.FreeBSD.org (Postfix) with ESMTP id 51A4F43D68 for ; Tue, 7 Mar 2006 18:25:55 +0000 (GMT) (envelope-from dthomas53@gmail.com) Received: by uproxy.gmail.com with SMTP id k40so725567ugc for ; Tue, 07 Mar 2006 10:25:54 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:references; b=n2NS2kGeyCXVVtYh5JDfU3d2heVMwAtUifIY0lA+TPho0zpLtwZqQ04o86o9lx/WGhOcaZLstA13JqSwKWI4AZTRJcK4kz/pCQf/V4ArCEiRh+ax0ByihMGkfHh8v/VirY+MFM1gVnDvsXxrMu/efdu0nE8D3T72HyPu2mqnSq4= Received: by 10.67.24.19 with SMTP id b19mr3442681ugj; Tue, 07 Mar 2006 10:25:53 -0800 (PST) Received: by 10.66.220.5 with HTTP; Tue, 7 Mar 2006 10:25:53 -0800 (PST) Message-ID: Date: Tue, 7 Mar 2006 13:25:53 -0500 From: "David Stanford" To: "Petre Bandac" In-Reply-To: <20060307192850.15258e4d@localhost> MIME-Version: 1.0 References: <1cac28080603070729h255c7ee8gfaefd0743814454@mail.gmail.com> <20060307192850.15258e4d@localhost> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-questions@freebsd.org Subject: Re: 192.168.0.1/24 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 07 Mar 2006 18:25:58 -0000 Hello Huy Ton That, The "/24" is the bitmask. As stated previously, it's basically a shorter notation than having to write out the whole subnet mask (i.e. 255.255.255.0= ) associated with the IP address. Unfortunately, attempting to explain the whole concept of netmasks is just too time consuming for a mailing list and you really have to have an understanding of the Base 2 (binary) numbering system to fully grasp the logic behind it. However, I will mention since yo= u will often see networks networked at a classful boundary, whenever you see "/8", "/16", "/24", or "/32", this represents the networks 192.[1-254].[1-254].[1-254], 192.168.[1-254].[1-254], 192.168.1.[1-254], an= d 192.168.1.1 respectively*. * 192.x.x.x scheme is just for example and does not mean it has to be this network. -David On 3/7/06, Petre Bandac wrote: > > On Tue, 7 Mar 2006 10:29:18 -0500 Anno Domini, the honourable Huy Ton > That wrote using one of his keyboards: > > > Reading the handbook and I've seen /24 appended to an IP address > > often. I'm curious what this exactly means - I don't have strong > > networking skills; does this define what ip it goes up to? > > > > 192.168.0.1 through to 192.168.0.24? > > you may want to install /usr/ports/net-mgmt/cidr > > 192.168.0.0/24 is the whole class C, i.e. from 1 to 254 (0 being the > network address and 255 being the broadcast address) > > http://www.kgb.ro/netmasks > > > _______________________________________________ > > freebsd-questions@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > > To unsubscribe, send any mail to > > "freebsd-questions-unsubscribe@freebsd.org" > > > -- > > Petre Bandac > > Network Scientist > > - > petre@kgb.ro > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscribe@freebsd.org" >