Chris Friesen wrote:
> David Miller wrote:
>
>> When you select VLAN, you by definition are asking for non-VLAN
>> traffic to be elided. It is like plugging the ethernet cable
>> into one switch or another.
>
> For max functionality it seems like the raw eth device should show
> everything on the wire in promiscuous mode.
>
> If we want to sniff only the traffic for a specific vlan, we can sniff
> the vlan device.
actually the impact can be quite negative, imagine doing a tcpdump on a 10gig
interface with vlan's enabled - all of a sudden you might accidentally flood the
system with a 100-fold increase in traffic and force the stack to dump all those
packets for you.
I'm still very reluctant about this patch, I think the current situation is OK for
everyone and offers everyone the possibility to do what they need, without hidden
consequences.
Auke
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