Return-path: Received: from s3.sipsolutions.net ([5.9.151.49]:37675 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752818AbaHUReM (ORCPT ); Thu, 21 Aug 2014 13:34:12 -0400 Message-ID: <1408642331.4388.2.camel@jlt4.sipsolutions.net> (sfid-20140821_193420_361797_C15C6B98) Subject: Re: [RFC] net: ipv4: drop unicast encapsulated in L2 multicast From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: netdev@vger.kernel.org Date: Thu, 21 Aug 2014 19:32:11 +0200 In-Reply-To: <1408641747-22199-1-git-send-email-johannes@sipsolutions.net> (sfid-20140821_192515_304437_37E734D5) References: <1408641747-22199-1-git-send-email-johannes@sipsolutions.net> (sfid-20140821_192515_304437_37E734D5) Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Thu, 2014-08-21 at 19:22 +0200, Johannes Berg wrote: > From: Johannes Berg > > RFC 1122 says that unicast packets encapsulated in broadcast > link-layer packets should be dropped. Implement that, but also > extend it to link-layer multicast packets. I cannot find anything equivalent in the IPv6 RFCs - anyone more familiar with that who could help check for that? And if it's *not* in the IPv6 RFCs, how should we implement this? johannes