Hi,
That's not a problem. In **promsicous mode** (checked?), you will see any traffic coming out of the mirror port, regardless if it's on your local subnet or not.
Have you tried sniffing without any filter? Do you see the traffic of the other subnet then?
I suspect your problem is more related to your port mirroring setup than to Wireshark filters.
Regards,
Lars Ruoff
________________________________________
From: wireshark-users-bounces@xxxxxxxxxxxxx [mailto:wireshark-users-bounces@xxxxxxxxxxxxx] On Behalf Of marco@xxxxxxxxxx
Sent: jeudi 29 avril 2010 14:49
To: wireshark-users@xxxxxxxxxxxxx
Subject: Re: [Wireshark-users] pcap / winpcap filters
Hi,
yes, that's what I did in the past but if I use this filter string I can only get the packet that lookup on my ethernet interface .... while I need to see all the packets that are not send to / comes from my eth interface subnet .
I did a port mirroring on a Layer3 switch so on the mirroring port I can see all the packets of some subnet and they will necessary not match my eth interface subnet .....
Thanks !
Marco
Da: wireshark-users-bounces@xxxxxxxxxxxxx
A: "Community support list for Wireshark" wireshark-users@xxxxxxxxxxxxx
Cc:
Data: Thu, 29 Apr 2010 14:09:46 +0200
Oggetto: Re: [Wireshark-users] pcap / winpcap filters
> Hi,
>
> Would that be a capture filter like: 'port 53 or port 5060'
>
> Thanks,
> Jaap
>
> On Thu, 29 Apr 2010 11:39:17 +0200, "marco\@marcomp\.it"
> wrote:
> > I need to filter some traffic (before capturing it) using the pcap /
> > winpcap filter but this traffic comes from some different subnet (
> > different from my eth interface subnet ).
> > So if I apply a filter the pcap show me the packet that can lookup on my
> > eth interface only ...
> > How can I get the filtered traffic that comes from "everywhere"
> > (0.0.0.0/0) ?
> >
> > I need to filter the data traffic before sending it to whireshark
> because
> > I only need to check the DNS and SIP traffic for a long time ( may be
> for
> > more than 1 week )... so I don't want to store Gbyte and Gbyte of not
> > helpful data on my pc.....
> >
> > Have you any suggestion ?
> >
> >
> > Marco
> >
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