Wireshark-dev: Re: [Wireshark-dev] 802.1qinq/802.1ad ethertypes
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From: Jaap Keuter <jaap.keuter@xxxxxxxxx>
Date: Thu, 13 Feb 2014 23:36:21 +0100
On 02/12/2014 07:40 PM, Florian Lohoff wrote:
> On Wed, Feb 12, 2014 at 05:30:20PM +0100, Alexis La Goutte wrote:
>> Hi,
>>
>> >From old conversation on -users :
>>
>> Check the VLAN preferences. There is an entry for the 802.1QinQ Ethertype,
>> which by default is 9100.
>>
>> http://www.wireshark.org/lists/wireshark-users/200801/msg00144.html
> 
> What happens if i have a qinq stack (tripple, quadruple whatever)
> which contains old style ethertypes 9100, 9200, 9300 in that order?
> 
> Flo
> 

That won't work. There's only a single Ethertype you can set for old style
Q-in-Q tunneling.

As for your sample capture, setting Q-in-Q preference of the VLAN dissector to
'9200' works perfectly.

Thanks,
Jaap