[dsc] Multiple interfaces

David Soltero david.soltero at icann.org
Fri Nov 2 23:49:39 UTC 2007


No, I don't have a 'bpf_program' line, since the one we tried did produce any results.

I am under the impression that yes, we are only seeing traffic for the last interface on the config.

On 11/2/07 4:44 PM, "Duane Wessels" <wessels at measurement-factory.com> wrote:

On Fri, 2 Nov 2007, David Soltero wrote:

> Hi Guys,
> Will a configuration with multiple interfaces work with the following
> entries in the dsc.conf?
> interface eth2;
> interface eth3;
> interface eth4;
> interface eth5;
> For some reason the DSC data only looks like its gathering results for the
> last one (eth5).

It is supposed to work they way that you want.  I think you should
be getting data from all interfaces, but its been a while since
I've tested such a configuration.

The code calls pcap_open() for each interface and then uses
select(2) on the pcap file descriptor to multiplex.

you don't have more than one 'bpf_program' line, do you?

If you re-order the interface lines do you then get only traffic
from the new last interface?

Duane W.


David Soltero
Network Engineer
Phone: 310-301-3890
Cell: 310-926-9635
Email: david.soltero at icann.org
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