It’s unlikely to come as a shock to you that only induction-suitable pans work on portable induction hobs. The functionality of induction is activated through a magnetic reaction which means you need pans that help channel that energy.
The reality of the situation is that basically all pans are induction-compatible with a few exceptions for things like those made from aluminum. If you're unsure of any of the cookware in your kitchen, simply see if a magnet sticks to the bottom of each pan, as advised above.