A customer requires that virtual systems with separate virtual routers can communicate with one another within a Palo Alto Networks firewall. In addition to confirming Security policies, which three…

A route with a next hop set to 'none' typically indicates a blackhole route or a directly connected network, which would not facilitate routing traffic between separate virtual routers on different virtual systems.

Configuring appropriate security zones, which can be thought of as external zones when they bridge communication between different virtual systems or facilitate inter-vsys routing, is crucial for defining the security context and allowing policy enforcement between virtual systems.

Implementing routes with a next hop type of 'next-vr' that explicitly specifies the target virtual router is essential for directing traffic from one virtual system's router to another virtual system's router within the same firewall. This enables inter-vsys routing.

Configuring Layer 3 zones for the interfaces used by the virtual systems is fundamental, as these zones define the security boundaries and are necessary for applying security policies to traffic flowing between the virtual systems' networks.