In a Layer 3 deployment, the firewall routes traffic between multiple ports. Before you can Configure Layer 3 Interfaces, you must configure the Virtual Routers that you want the firewall to use to route the traffic for each Layer 3 interface.

The following topics describe how to configure Layer 3 interfaces, and how to use Neighbor Discovery Protocol (NDP) to provision IPv6 hosts and view the IPv6 addresses of devices on the link local network to quickly locate devices.