netdev - Re: [PATCH] macvlan: receive multicast with local address

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <20111104.174005.1467761740413516054.davem@redhat.com>
Date:	Fri, 04 Nov 2011 17:40:05 -0400 (EDT)
From:	David Miller <davem@...hat.com>
To:	shemminger@...tta.com
Cc:	arnd@...db.de, netdev@...r.kernel.org
Subject: Re: [PATCH] macvlan: receive multicast with local address

From: Stephen Hemminger <shemminger@...tta.com>
Date: Wed, 2 Nov 2011 15:11:53 -0700

> When implementing VRRP v2 using macvlan several problems were
> discovered.  VRRP is weird in that all routers participating
> in a redundant group use the same virtual MAC address.
> Macvlan is a natural driver to use for this but it doesn't
> work.  The problem is that packets with a macvlan device's
> source address are not received.
> 
> The problem is actually a regression that date back almost 2 years now.
> The original problems started with:
> 
> commit 618e1b7482f7a8a4c6c6e8ccbe140e4c331df4e9
> Author: Arnd Bergmann <arnd@...db.de>
> Date:   Thu Nov 26 06:07:10 2009 +0000
> 
>     macvlan: implement bridge, VEPA and private mode
>     
> This patches restores the original 2.6.32 behavior. Allowing multicast
> packets received with the VRRP source address to be received.
> 
> Signed-off-by: Stephen Hemminger <shemminger@...tta.com>

Applied and queued up for -stable, thanks.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html