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PCNSE · Question #447

When deploying PAN-OS SD-WAN, which routing protocol can you use to build a routing overlay?

The correct answer is C. OSPF. In PAN-OS SD-WAN deployments, OSPF is the designated routing protocol used to build and maintain the dynamic routing overlay between connected firewalls.

Submitted by fatima_kr· Apr 18, 2026Deploy and Configure

Question

When deploying PAN-OS SD-WAN, which routing protocol can you use to build a routing overlay?

Options

  • AOSPFv3
  • BBGP
  • COSPF
  • DRIP

How the community answered

(26 responses)
  • B
    4% (1)
  • C
    92% (24)
  • D
    4% (1)

Why each option

In PAN-OS SD-WAN deployments, OSPF is the designated routing protocol used to build and maintain the dynamic routing overlay between connected firewalls.

AOSPFv3

OSPFv3 is for IPv6 routing and is not the default or primary protocol for building the general SD-WAN routing overlay.

BBGP

While BGP can be used in some advanced SD-WAN scenarios or for routing between SD-WAN and external networks, OSPF is the primary protocol documented for building the internal SD-WAN routing overlay.

COSPFCorrect

OSPF (Open Shortest Path First) is the specified routing protocol in PAN-OS SD-WAN that firewalls use to build and maintain the routing overlay across the VPN tunnels connecting the sites.

DRIP

RIP is an outdated routing protocol with significant limitations and is not suitable for modern SD-WAN deployments.

Concept tested: PAN-OS SD-WAN routing overlay protocols

Source: https://docs.paloaltonetworks.com/pan-os/11-1/pan-os-admin/sd-wan/sd-wan-configuration/sd-wan-dynamic-routing-protocols.html

Topics

#PAN-OS SD-WAN#Routing Protocols#OSPF#SD-WAN Overlay

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