Ethereal-users: Re: [Ethereal-users] Capture traffic (RTCP packets) destined for machines other

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From: Jaap Keuter <jaap.keuter@xxxxxxxxx>
Date: Fri, 12 May 2006 17:02:13 +0200 (CEST)
Hi,

How are you connected to the LAN segment? On a hub or switch?
Did you create a "span" on the switch, a monitor port?

Thanx,
Jaap

On Fri, 12 May 2006, David Grau Serra wrote:

> Hi all,
>
> When I want to capture traffic (RTCP packets) "sent to" and "sent from"
> my local machine, I use this tethereal command and it runs fine:
> tethereal -i 2 -p -R "rtcp" -V > d:\project\ethereal\rtcp.txt
>
> I am trying to capture traffic (RTCP packets) destined for machines
> other than my own, but same LAN segment. I use this tethereal command
> and it does not work:
>
> tethereal -i 2 -V -o "rtcp.heuristic_rtcp:TRUE" -R "rtcp" >
> d:\project\ethereal\rtcp.txt
> Capturing on SiS NIC SISNIC (Microsoft's Packet Scheduler)
>
> but it captures nothing...
>
> or this one with the same result (just it changes -p)
> tethereal -i 2 -p -V -o "rtcp.heuristic_rtcp:TRUE" -R "rtcp" >
> d:\project\ethereal\rtcp.txt
> Capturing on SiS NIC SISNIC (Microsoft's Packet Scheduler)
>
> Many thanks in advance,
> David
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