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Exam NGFW-Engineer Topic 1 Question 4 Discussion

Actual exam question for Palo Alto Networks's NGFW-Engineer exam
Question #: 4
Topic #: 1
In an active/active high availability (HA) configuration with two PA-Series firewalls, how do the firewalls use the HA3 interface?

Suggested Answer: A Vote an answer

The HA3 interface, a Layer 2 link using MAC-in-MAC encapsulation, enables packet forwarding between active/active firewalls to handle asymmetric routing and ensure proper session setup when traffic arrives at the non-owner peer.

by Spencer at Mar 08, 2026, 11:14 AM

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