[CentOS] vlan support
Les Mikesell
lesmikesell at gmail.com
Tue Mar 4 21:29:16 UTC 2008
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
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