Palo Alto Networks Certified Network Security Engineer (PCNSE) — Question 179

An administrator receives the following error message:
"IKE phase-2 negotiation failed when processing Proxy ID. Received local id 192. 168.33.33/24 type IPv4 address protocol 0 port 0, received remote id
172.16.33.33/24 type IPv4 address protocol 0 port 0."
How should the administrator identify the root cause of this error message?

Answer options

• A. Verify that the IP addresses can be pinged and that routing issues are not causing the connection failure.
• B. Check whether the VPN peer on one end is set up correctly using policy-based VPN.
• C. In the IKE Gateway configuration, verify that the IP address for each VPN peer is accurate.
• D. In the IPSec Crypto profile configuration, verify that PFS is either enabled on both VPN peers or disabled on both VPN peers.

Correct answer: B

Explanation

The correct answer is B, as it directly addresses the configuration of the VPN peers in relation to policy-based VPNs, which can lead to negotiation failures. Options A, C, and D may be relevant to different types of issues but do not specifically resolve the negotiation failure indicated in the error message.