From mboxrd@z Thu Jan 1 00:00:00 1970 From: "David S. Miller" Subject: Re: [2.4 PATCH] bugfix: ARP respond on all devices Date: Mon, 18 Aug 2003 05:55:55 -0700 Sender: netdev-bounce@oss.sgi.com Message-ID: <20030818055555.248f2a01.davem@redhat.com> References: <20030728213933.F81299@coredump.scriptkiddie.org> <200308171509570955.003E4FEC@192.168.128.16> <200308171516090038.0043F977@192.168.128.16> <1061127715.21885.35.camel@dhcp23.swansea.linux.org.uk> <200308171555280781.0067FB36@192.168.128.16> <1061134091.21886.40.camel@dhcp23.swansea.linux.org.uk> <200308171759540391.00AA8CAB@192.168.128.16> <1061137577.21885.50.camel@dhcp23.swansea.linux.org.uk> <200308171827130739.00C3905F@192.168.128.16> <1061141045.21885.74.camel@dhcp23.swansea.linux.org.uk> <20030817224849.GB734@alpha.home.local> <20030817223118.3cbc497c.davem@redhat.com> <20030818133957.3d3d51d2.skraw@ithnet.com> <20030818044419.0bc24d14.davem@redhat.com> <20030818143401.1352d158.skraw@ithnet.com> <20030818053007.7852ca77.davem@redhat.com> <20030818145316.3a81f70c.skraw@ithnet.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: willy@w.ods.org, alan@lxorguk.ukuu.org.uk, carlosev@newipnet.com, lamont@scriptkiddie.org, davidsen@tmr.com, bloemsaa@xs4all.nl, marcelo@conectiva.com.br, netdev@oss.sgi.com, linux-net@vger.kernel.org, layes@loran.com, torvalds@osdl.org, linux-kernel@vger.kernel.org Return-path: To: Stephan von Krawczynski In-Reply-To: <20030818145316.3a81f70c.skraw@ithnet.com> Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org On Mon, 18 Aug 2003 14:53:16 +0200 Stephan von Krawczynski wrote: > _And_ you did not explain so far why these implementations should > not be RFC-conform or else illegal. Both responding and not responding on all interfaces for ARPs is RFC conformant. This means both Linux and other systems are within the rules. Under Linux, by default, IP addresses are owned by the system not by interfaces. This increases the likelyhood of successful communication on a subnet. For scenerios where this doesn't work, we have ways to make the kernel behave the way you want it to. There is no discussion about changing the default, because that might break things for some people. So this discussion is pretty useless.