From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1RugQb-0001CE-2D for garchives@archives.gentoo.org; Tue, 07 Feb 2012 08:29:29 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 681F9E05F5; Tue, 7 Feb 2012 08:29:16 +0000 (UTC) Received: from smtp.gentoo.org (smtp.gentoo.org [140.211.166.183]) by pigeon.gentoo.org (Postfix) with ESMTP id A79EBE001F for ; Tue, 7 Feb 2012 08:28:42 +0000 (UTC) Received: from [192.168.1.43] (unknown [96.231.195.26]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.gentoo.org (Postfix) with ESMTPS id D54721B402E for ; Tue, 7 Feb 2012 08:28:41 +0000 (UTC) Message-ID: <1328603319.8348.81.camel@rook> Subject: Re: [gentoo-dev] rfc: only the loopback interface should provide net From: Alexandre Rostovtsev To: gentoo-dev@lists.gentoo.org Date: Tue, 07 Feb 2012 03:28:39 -0500 In-Reply-To: <20120207064348.GA3036@linux1> References: <20120206210451.GA1940@linux1> <1328570113.8348.53.camel@rook> <20120207064348.GA3036@linux1> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3 Content-Transfer-Encoding: 7bit Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-dev@lists.gentoo.org Reply-to: gentoo-dev@lists.gentoo.org Mime-Version: 1.0 X-Archives-Salt: 989e6241-53bb-4194-a223-0d1404a39857 X-Archives-Hash: e1e4cfe19fe58c4dfeec7d7bada1bf29 On Tue, 2012-02-07 at 00:43 -0600, William Hubbs wrote: > My understanding of networking is that you can't have two interfaces > with ip addresses in the same subnet on the same computer. Correct? > > If that is the case, more than likely, the service you want to connect > to will be on one subnet or the other, but not both. Forget per-interface subnets, that's category 3 material. Category 1 is about connections that should be available from any suitably configured interface. If I want to connect to pool.ntp.org to sync the system clock, or to my company's vpn gateway for telecommuting, or to tor to encrypt my traffic, or to a dynamic dns provider to update my machine's record, I do not care in the least which interface I use. It could be either of my machine's ethernet ports, could be the wireless adaptor, could be the built-in wimax card. Could even be something dynamically configured - a mobile phone tethered over a usb cable, for example. All I care about is that at least one of my interfaces is providing some sort of working network connection. And that's exactly what "provide net" should imply. -Alexandre.