From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [RFC] net: ipv4: drop unicast encapsulated in L2 multicast Date: Tue, 02 Sep 2014 15:03:26 -0700 (PDT) Message-ID: <20140902.150326.1420682815750767731.davem@davemloft.net> References: <1409133238.26515.13.camel@localhost> <1409650573.1808.11.camel@jlt4.sipsolutions.net> <540675F2.1030308@miraclelinux.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: johannes-cdvu00un1VgdHxzADdlk8Q@public.gmane.org, hannes-tFNcAqjVMyqKXQKiL6tip0B+6BGkLq7r@public.gmane.org, linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, yoshfuji-VfPWfsRibaP+Ru+s062T9g@public.gmane.org To: hideaki.yoshifuji-GmhWrQMWH5w7YuNMryXyOw@public.gmane.org Return-path: In-Reply-To: <540675F2.1030308-GmhWrQMWH5w7YuNMryXyOw@public.gmane.org> Sender: linux-wireless-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: netdev.vger.kernel.org From: YOSHIFUJI Hideaki Date: Wed, 03 Sep 2014 10:59:14 +0900 > Upper-layer needs to cope eith situation of seeing packets with > "incorrect" L2 header anyway (e.g., in promiscous mode). > I do not see much advantage to drop them here. It's required to prevent wireless nodes from using the shared wireless group keys (used for multicast transmission) to inject unicast frames. The RFCs really do specify this at least on the ipv4 side. -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html