How to find static IP address for unknown device
The easiest way to find a static IPv4 address for any unknown device is netdiscover.
The easiest, and most reliable way of doing that is to just use the brute-force mode on your network interface, connected directly to the device.
sudo netdiscover -S -f -i eth0
Example output
Currently scanning: Finished! | Screen View: Unique Hosts
2 Captured ARP Req/Rep packets, from 2 hosts. Total size: 120
_____________________________________________________________________________
IP At MAC Address Count Len MAC Vendor / Hostname
-----------------------------------------------------------------------------
192.168.0.1 90:1b:0e:d7:ae:23 1 60 Fujitsu Technology Solutions GmbH
192.168.128.1 90:1b:0e:d7:ae:23 1 60 Fujitsu Technology Solutions GmbH
Other methods
Previously, I used wireshark and just trying out IP addresses manually, but since even the brute force mode is just so easy to use and just takes a couple of seconds, there is really no use in doing it any other way.
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