Wireshark-users: [Wireshark-users] Problems capturing frames with a two vlan-stack
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From: Jose Liste <jliste2002@xxxxxxxxx>
Date: Wed, 17 Oct 2007 16:29:57 -0700 (PDT)
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

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