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PCNSE · Question #702

PCNSE Question #702: Real Exam Question with Answer & Explanation

The correct answer is B: tunnel.50. Palo Alto Networks firewalls use the "tunnel.X" format for naming tunnel interfaces, where X is a unique numerical identifier.

Submitted by tom_us· Apr 18, 2026Deploy and Configure

Question

A customer wants to set up a site-to-site VPN using tunnel interfaces. What format is the correct naming convention for tunnel interfaces?

Options

  • Atun.1025
  • Btunnel.50
  • Cvpn.1024
  • Dgre1/2

Explanation

Palo Alto Networks firewalls use the "tunnel.X" format for naming tunnel interfaces, where X is a unique numerical identifier.

Common mistakes.

  • A. The prefix "tun" is not the correct naming convention for tunnel interfaces on Palo Alto Networks firewalls.
  • C. The prefix "vpn" is not the correct naming convention for tunnel interfaces on Palo Alto Networks firewalls.
  • D. This format resembles a physical interface or GRE tunnel, not the specific naming convention for a tunnel interface in Palo Alto Networks.

Concept tested. Tunnel interface naming convention

Reference. https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-admin/vpns/set-up-a-site-to-site-vpn-tunnel/configure-the-tunnel-interface

Topics

#VPN#Tunnel Interface#Naming Convention#PAN-OS Configuration

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