Ethereal-users: Re: [Ethereal-users] Capture packets on virtual interface?

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From: Guy Harris <guy@xxxxxxxxxxxx>
Date: Wed, 28 May 2003 11:04:19 -0700
On Wed, May 28, 2003 at 05:18:13PM +0800, Hongwei Kong wrote:
> Hi Guys, I wonder whether Ethereal can capture packets on virtual 
> interface. Sometimes, we have to specify several IP addresses to 
> one physical interface in the following way:
> 
> eth1:1 IP1
> eth1:2 IP2
> 
> ....
> 
> However, when I tried to capture the packets on one of the virtual
> interface by using the command like "tethereal -i eth1:1 ....",
> I can't capture any packets. 

What happens if you try

	tcpdump -i eth1:1 ...

If that doesn't work either, it's a libpcap issue or an issue with the
packet capture mechanism with whatever OS you're using; what OS are you
using, and what does

	tethereal -v

print?