netdev - Re: [RFC] bridge: MAC learning uevents

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Message-Id: <3E731737-A295-40AD-9F87-1E1A835DEADB@herrendoerfer.name>
Date:   Thu, 8 Sep 2016 19:23:49 +0200
From:   "D. Herrendoerfer" <d.herrendoerfer@...rendoerfer.name>
To:     Andi Kleen <andi@...stfloor.org>
Cc:     netdev@...r.kernel.org
Subject: Re: [RFC] bridge: MAC learning uevents

There is a reference to the virtual port in the event so you can actually
keep only one record MAC per port, I suppose the the impact would be
the same if you do this to a macvtap device on top of an ethernet device.
But granted - you could really load down the host.

Dirk

On 08 Sep 2016, at 17:15, Andi Kleen <andi@...stfloor.org> wrote:

> "D. Herrendoerfer" <d.herrendoerfer@...rendoerfer.name> writes:
>> 
>> I may be missing something here - I'm pretty sure there I am, but is
>> there any conceptual
>> 
>> reason why this should not be done this way ?
> 
> What happens if someone floods the network with random mac addresses?
> Sounds like an easy way to do a DoS attack against your host?
> 
> -Andi