vlan support - Is it possible to have only tagged frames?

[Robert Moskowitz]

On 09/08/2014 03:33 PM, Louis Lagendijk wrote:
> On Mon, 2014-09-08 at 14:02 -0400, Robert Moskowitz wrote:
>> I know that to support vlaning, I have a ifcfg-eth0.n file with the
>> entry vlan=yes and this will support vlan tag value n.
>>
>> But can I leave off the default ifcfg-eth0 file and have NO untagged usage?
>>
>> I know I can configure my switch to only provided tagged frames to a port.
>>
>>
> Just define ifcfg-eth0 without IP-address but active. Then ifcfg-eth0.x
> can be used for the tagged packages.

I think there has to be a bit more than that, just in case there is some 
system doing DHCP or RA on the default VLAN just to make things difficult.

onboot=yes
bootproto=none
NM_CONTROLLED=no
NETWORKING=no
IPV6INIT=no
IPV6_AUTOCONF=no

And if Networking=no, is the IPV6 reduntant?