[CentOS] vlan support

[Les Mikesell]

John R Pierce wrote:
> Les Mikesell wrote:
>> Is vlan 1 always native (untagged) or can you specify that?  I 
>> remember having some problem with  Intel NICs on windows not liking 
>> native packets at all if any were tagged but I don't know if that was 
>> a hardware or software issue.
>>
> 
> 
> its my understanding that if you're using vlan tagging on a given link, 
> ALL packets are supposed to be tagged, as the tag is a prefix on the 
> ethernet header.   mixing tagged and untagged packets would be very messy.

No, 802.1q has a concept of 'native' packets being assigned to a 
specified single vlan.  This has to be understood by each interface that 
can be configured as a trunk.  I just couldn't get the Intel windows 
proset driver to do it - but that was several years ago.

-- 
   Les Mikesell
    lesmikesell at gmail.com