Ethereal-users: Re: [Ethereal-users] VLan Tagging

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From: Ulf Lamping <ulf.lamping@xxxxxx>
Date: Wed, 27 Jul 2005 12:05:41 +0200
Travis L. Riesenberg wrote:

*/Hi,/*

*/ /*

*/I am using a TrendNet 10/100/1000Mbps NIC card that supports 802.1q in my laptop. I am using Ethereal version Version 0.10.11 (C) 1998-2005 Gerald Combs <gerald@xxxxxxxxxxxx>/*

*/ /*

*/Compiled with GTK+ 2.4.14, with GLib 2.4.7, with WinPcap (version unknown),/*

*/with libz 1.2.2, with libpcre 4.4, with Net-SNMP 5.1.2, with ADNS./*

*/ /*

*/Running with WinPcap (3.0) on Windows XP Service Pack 2, build 2600./*

*/ /*

*/I am trying to get an ip phone up that is in Italy. I can see packets coming from the phone from italy. However I need to look at the 802.1q/p bits that are inserted into the MAC frame to make sure they are being tagged. I can�t seem to see the 802.1q field on any of the packets. I am using Cisco trunking on ports going to the router and IP Phones using dot1q encapsulation. I am also using SPAN to port mirror the trunk to see the traffic. I can see all the traffic but that I can�t see the VLAN information or the COS bits. Can you please help me?/*

*/ /*

/*See http://wiki.ethereal.com/CaptureSetup_2fVLAN

Regards, ULFL
*/