Date: Wed, 5 Mar 2014 13:21:13 +0100
From: Gert Doering <gert@...1296...>
Message-ID: <20140305122113.GT16637@...1296...>
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Subject: Re: [Openvpn-devel] [PATCH] Extract MAC addresses from ARP packets
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To: Vladimir Kamarzin <vvk@...1868...>
Cc: "openvpn-devel@lists.sourceforge.net" <openvpn-devel@lists.sourceforge.net>

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Hi,

On Wed, Mar 05, 2014 at 04:37:09PM +0600, Vladimir Kamarzin wrote:
> 5. Switch (S) does not know where is 00:00:00:22:22:22, so it sends this =
packet to all ports

Yeah, I think that's the difference.  We don't do unicast flooding ("send
frames to unknown unicast destinations to every single port") because
bandwidth on the VPN is limited & more expensive.

Adding it would solve the issue at hand, but I'm not convinced that you'll
be happy with the end - it might actually end up saturating VPN links and
making users unhappy if you have "much flooded traffic" (which happens in
some of the networks).

gert
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Gert Doering - Munich, Germany                             gert@...1296...
fax: +49-89-35655025                        gert@...1297...

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