From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: forwarding of ipv4 link local addresses Date: Thu, 03 Dec 2015 14:35:31 -0500 (EST) Message-ID: <20151203.143531.282555789343463670.davem@davemloft.net> References: <565E12BE.90006@cumulusnetworks.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: dsa@cumulusnetworks.com Return-path: Received: from shards.monkeyblade.net ([149.20.54.216]:43930 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752684AbbLCTfd (ORCPT ); Thu, 3 Dec 2015 14:35:33 -0500 In-Reply-To: <565E12BE.90006@cumulusnetworks.com> Sender: netdev-owner@vger.kernel.org List-ID: From: David Ahern Date: Tue, 1 Dec 2015 13:35:58 -0800 > RFC 3927 states that packets from/to IPv4 link-local addresses > (169.254/16) should not be forwarded, yet the Linux networking stack > happily forwards them. Before sending in a patch I wanted to inquire > if this behavior is intentional. It probably won't break anything if we prohibit this, so sure send a patch.