Is there a way to discover what subnet a device is using?

[Chris Green]

On Fri, Mar 06, 2020 at 02:07:08AM +1100, Karl Auer wrote:
> On Thu, 2020-03-05 at 13:01 +0000, Chris Green wrote:
> > I've tried guessing what LAN subnet it might be set up for and
> > connecting to my laptop with the same subnet configured statically in
> > the laptop.  The hardware interface comes up OK, gigabit duplex, but
> > no actual data connection.  I can't try many subnets this way.
> 
> Ken already mentioned Wireshark. If the device has its MAC address
> printed on it anywhere, that makes life even easier. Just filter on
> that MAC address in Wireshark and look for traffic.
> 
Good point, I do have the MAC address, thanks.

-- 
Chris Green