From: "Štefan Gula" <steweg@ynet.sk>
To: Stephen Hemminger <shemminger@vyatta.com>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
"David S. Miller" <davem@davemloft.net>,
James Morris <jmorris@namei.org>,
Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
Patrick McHardy <kaber@trash.net>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [patch v4, kernel version 3.2.1] net/ipv4/ip_gre: Ethernet multipoint GRE over IP
Date: Wed, 25 Jan 2012 22:01:08 +0100 [thread overview]
Message-ID: <CAGsizzKAvAV771vSo0TGx_sU5qXgjOOqVRooK9vOf=XEi1NtXA@mail.gmail.com> (raw)
In-Reply-To: <20120125085712.524b65a8@nehalam.linuxnetplumber.net>
2012/1/25 Stephen Hemminger <shemminger@vyatta.com>:
> On Wed, 18 Jan 2012 00:33:14 +0100 (CET)
> Stefan Gula <steweg@ynet.sk> wrote:
>
>> From: Stefan Gula <steweg@gmail.com>
>>
>> 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 <steweg@gmail.com>
>
> Will this break normal usages of GRE?
> Compile time options are not acceptable for a standard distribution if
> it will break it for the other case. It is fine to add the additional data
> structure elements, but the code in the receive path might get broken?
>
>
No, if you don't decide to compile with given kernel option.. nothing
happens and original GRE code is leaved intact.
next prev parent reply other threads:[~2012-01-25 21:01 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <18947389.2811326843064500.JavaMail.root@5-MeO-DMT.ynet.sk>
2012-01-17 23:33 ` [patch v4, kernel version 3.2.1] net/ipv4/ip_gre: Ethernet multipoint GRE over IP Stefan Gula
2012-01-23 13:12 ` Štefan Gula
2012-01-23 14:13 ` Eric Dumazet
2012-01-23 18:43 ` David Miller
2012-01-23 22:23 ` Štefan Gula
2012-01-25 3:48 ` Joseph Glanville
2012-01-25 4:02 ` David Miller
2012-01-25 7:11 ` Jesse Gross
2012-01-25 7:38 ` Štefan Gula
2012-01-25 8:37 ` Eric Dumazet
2012-01-25 9:17 ` Štefan Gula
2012-01-25 15:25 ` Joseph Glanville
2012-01-25 21:55 ` David Miller
2012-01-25 22:57 ` Štefan Gula
2012-01-25 23:18 ` Dave Taht
2012-01-26 1:37 ` David Miller
2012-01-26 10:57 ` Štefan Gula
2012-01-26 18:30 ` David Miller
2012-01-26 22:24 ` Joseph Glanville
2012-01-27 5:59 ` Eric Dumazet
2012-01-27 10:54 ` Joseph Glanville
2012-01-27 21:55 ` Jesse Gross
2012-01-27 21:50 ` Jesse Gross
2012-01-25 5:53 ` Eric Dumazet
2012-01-25 16:57 ` Stephen Hemminger
2012-01-25 21:01 ` Štefan Gula [this message]
2012-01-25 21:49 ` David Miller
2012-01-25 22:30 ` Štefan Gula
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