From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: Re: [patch v7, kernel version 3.2.1] net/ipv4/ip_gre: Ethernet multipoint GRE over IP Date: Tue, 31 Jan 2012 08:56:12 -0800 Message-ID: <20120131085612.3bb50a51@nehalam.linuxnetplumber.net> References: <12547555.801328015432974.JavaMail.root@5-MeO-DMT.ynet.sk> <4168018.821328016111235.JavaMail.root@5-MeO-DMT.ynet.sk> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: Alexey Kuznetsov , "David S. Miller" , James Morris , Hideaki YOSHIFUJI , Patrick McHardy , netdev@vger.kernel.org To: Stefan Gula Return-path: Received: from mail.vyatta.com ([76.74.103.46]:36992 "EHLO mail.vyatta.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752479Ab2AaQ4P (ORCPT ); Tue, 31 Jan 2012 11:56:15 -0500 In-Reply-To: <4168018.821328016111235.JavaMail.root@5-MeO-DMT.ynet.sk> Sender: netdev-owner@vger.kernel.org List-ID: On Tue, 31 Jan 2012 14:21:51 +0100 (CET) Stefan Gula wrote: > From: Stefan Gula > > This patch is an extension for current Ethernet over GRE > implementation, which allows user to create virtual bridge (multipoint > VPN) and forward traffic based on Ethernet MAC address information in > it. It simulates the Bridge behavior learning mechanism, but instead > of learning port ID from which given MAC address comes, it learns IP > address of peer which encapsulated given packet. Multicast, Broadcast > and unknown-multicast traffic is send over network as multicast > encapsulated GRE packet, so one Ethernet multipoint GRE tunnel can be > represented as one single virtual switch on logical level and be also > represented as one multicast IPv4 address on network level. > > Signed-off-by: Stefan Gula Have you looked at the NVGRE standard? http://tools.ietf.org/html/draft-sridharan-virtualization-nvgre-00