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

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From: Jay Taylor <email.list.58@xxxxxxxxx>
Date: Tue, 26 Jul 2005 20:49:30 -0500
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Do you mean Cisco trunking as in ISL? Inter-Switch Link is not the
same as 802.1Q trunking and is Cisco proprietary.

Travis L. Riesenberg wrote:

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>
> */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?/*
>
> */ /*
>
> */Thank You,/*
>
> */ /*
>
> *Travis Riesenberg, **CTP*
>
> *Vodaci Technologies*
>
> 11111 Aurora Ave
>
> Des Moines, IA 50322
>
> *Phone:* 515-727-2841
>
> *Fax:* 515-252-2741
>
> travisr@xxxxxxxxxx <mailto:travisr@xxxxxxxxxx>
>
>
>
>
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