Which interface type can use virtual routers and routing protocols?

Tap interfaces are passive and used for traffic monitoring, not for active routing or participating in virtual routers.

Layer3 interfaces operate at the network layer, have IP addresses, and can be assigned to virtual routers, allowing them to participate in routing protocols and forward IP packets based on routing tables.

Virtual Wire (VWire) interfaces operate as a "bump-in-the-wire" at Layer2, forwarding traffic transparently without IP addresses or involvement in routing protocols.

Layer2 interfaces are typically used for switching and do not participate in IP routing or integrate with virtual routers and routing protocols on the firewall itself.