Kok, Auke wrote:
Joonwoo Park wrote:
IMHO even though netdevice is in the promiscuous mode, we should receive all of 
ingress packets.
This disable the vlan filtering feature when a vlan hw accel configured e1000 
device goes into promiscuous mode.
This make packets visible to sniffers though it's not vlan id of itself.
Any check, comments will be appreciated.

Actually I think this patch removes a choice from the user.

Before this patch, the user can sniff all traffic by disabling vlans, or a
specific vlan only by leaving vlans on when going into promisc mode.

After this patch, the user has no choice but to sniff all vlans at all times.

I don't think that that is such a good improvement.


Do you really consider that a realistic choice? Who is going to
remove interfaces that are in use just to see traffic for other
VLANs? Sniffing specific VLANs can always be done on the VLAN
device itself.

IMO its more a question of what we want promiscous mode to mean,
and I tend to agree with Joonwoo that it should receive all packets.
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