You’re doing this on your home network and can log in to your router and find the DHCP settings.
You have a keyboard, monitor, and ethernet cable plugged into your Pi. Chances are high we’ll break networking and lose access to the Pi.
You’re somewhat familiar with the command line, ssh.
We’re going to use systemd networking for this. You could probably adapt the concepts to a different linux network configuration system if you have opinions about systemd.
We used a raspberry Pi 2 while writing this, but a Pi 3 or 4 should work fine. Anything running a Debian 10 based distro should be fine. It doesn’t have a be a raspberrypi, but some of these instructions might be raspbian specific.Please don’t do this at work without asking your friendly network administrator. They will probably get a notification and come take away your Pi.
Prepare this information: