Ethereal-users: Re: [Ethereal-users] Inbound packets are blocked when I packet capture

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From: Guy Harris <gharris@xxxxxxxxx>
Date: Sun, 9 Feb 2003 12:24:24 -0800
On Sun, Feb 09, 2003 at 04:34:03PM +0000, Jason Foster wrote:
> I'm using Windows XP and I have a problem when tyring to sniff traffic on my 
> modem. I choose the the \Device\NPF_Ndis\Wanlp interface

Presumnably you mean "\Device\NPF_NdisWanlp".

> and try to use my 
> modem connection to browse the web top generate some traffic but I cannot 
> see the internet anymore. As soon as I stop the capture, the internet works
> again. When I look at the capture, there is ONLY outbound traffic.
> 
> Ethereal appears to block inbound traffic and therefore breaks my 
> connection.

Ethereal doesn't.  WinPcap does:

	http://www.ethereal.com/faq.html#q5.12

	http://winpcap.polito.it/misc/faq.htm#Q-6