HPE Aruba Certified Network Security Associate (ACNSA) — Question 36

A VIA client tries to initially connect to a corporate office controller through an intermediate firewall. However, the VPN connection fails. The administrator examines the firewall rules and determines that rules for UDP 4500 and UDP 500 are configured.
Which additional protocol must be allowed in the firewall rules to resolve this connection failure?

Answer options

• A. TCP 22
• B. UDP 8200
• C. ESP
• D. TCP 443

Correct answer: D

Explanation

The correct answer is TCP 443, which is commonly used for secure communications over HTTPS and is necessary for establishing a VPN connection. The other options, while valid protocols, do not play a role in the VPN connection process through the firewall in this scenario.