Campus Manager Discovery requires CDP, ILMI, or ELMI to be enabled for it to automatically find devices. Since none of our firewall products support those technologies, Discovery will not find devices behind them.
As a workaround, you will need to add multiple seed devices: one on the inside of the firewall, and one on the outside. While the network will appear disjoint where the firewall is, you will find all other devices on both sides.
