Wireshark · Wireshark-users: Re: [Wireshark-users] Problems capturing frames with a two vlan-stack

[Jaap Keuter <jaap.keuter@xxxxxxxxx>]

Hi,

The VLAN dissector has a 802.1QinQ preference. By default this is set to 
9100. What happens if you change that to 8100?

Thanx,
Jaap

Jose Liste wrote:
> Hi,
>  
> I am trying to capture frames that carry two vlan tags (both with etype 
> x8100). For the actual capture, I have a passive copper tap connected to 
> my laptop (Lenovo T60P with Intel Pro/1000 PL) with wireshark.
>  
> The problem I am having is that I only see the outer-most vlan tag but 
> not the inner one. The actual payload of the frame (ICMP) is shown 
> correcltly. The inner-most vlan tag is not shown at all.
>  
> I saw earlier email thread about someone not seeing the outer-most vlan 
> (opposite of my observations).
>  
> Any suggestions to fix this problem?
>  
> Jose