Re: Problems with capturing on multiple interfaces

[Tyson Key <tyson.key () gmail com>]

Hmm, wouldn't using "any" was a means of nullifying other interfaces break
concurrent capturing on both the "any interface" and Bluetooth or USB
interfaces?

Still, I agree with Chris's suggestions, with regards to weak emulation of
an "any interface" under Windows; and "speculative capturing" (i.e. waiting
for a device to appear before capturing relevant traffic).

I'm liking the feature so far otherwise, though. (It means that I no longer
have to launch Wireshark or TShark *8* times, and dismiss a tonne of warning
dialogues just to do USB capturing).

Thanks, and keep up the good work!

Tyson.

On 20 May 2011 15:25, Chris Maynard <chris.maynard () gtech com> wrote:

> Michael Tüxen <Michael.Tuexen@...> writes:
>
> > You actually need:
> > -n to use pcapng
> > and
> > -t to use threads.
> >
> > It is simple to add -n and -t if you are specifying more than one
> interface
> > (actually this is what tshark and wireshark do). I wanted to be explicit
> > since I consider it currently an experimental feature. But, if the groups
> > prefers, we can add -n and -t if there is more than one interface
> specified.
>
> To me, if it doesn't work without -n and -t, then it makes it that much
> more
> user-friendly to automatically use pcapng and threads whenever multiple
> interfaces are specified.
>
> I understand this is still a work in progress, but something else I was
> thinking
> about was the "-i any" interface.  What will happen if someone specifies
> something like, "-i eth0 -i any -i lo" or variations thereof?  I assume it
> would
> be treated as "-i any" only?
>
> And speaking of "-i any", obviously on Windows, that isn't supported ...
> but a
> neat thing would be if it could be by internally scanning all interfaces
> and
> treating it as if "-i 1 -i 2 ... -i n" were specified.
>
> And while I'm at it ... another feature that I think would be nice to have
> would
> be to be able to specify capturing on an interface that doesn't yet exist,
> such
> as ppp0.  For my USB/PPP capturing, currently to get a capture of all
> traffic
> over that interface, I either have to use usbmon or ppp's record option to
> generate a pppdump file.  (OK, this last one isn't really specific to
> capturing
> on multiple interfaces, but it's related to capturing so ...)
>
> > Thanks for the feedback.
> You're welcome ... thanks for the feature!
> - Chris
>
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