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Palo_Alto_Networks

PCNSE · Question #391

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…

The correct answer is B. Check whether the VPN peer on one end is set up correctly using policy-based VPN. The VPN peer on one end is using policy-based VPN. You must configure a Proxy ID on the Palo Alto Networks firewall. https://docs.paloaltonetworks.com/pan-os/10-1/pan-os-admin/vpns/set-up-site-to-site- vpn/interpret-vpn-error-messages.html

Submitted by diego_uy· Apr 18, 2026Configuration Troubleshooting

Question

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?

Options

  • AVerify that the IP addresses can be pinged and that routing issues are not causing the connection
  • BCheck whether the VPN peer on one end is set up correctly using policy-based VPN.
  • CIn the IKE Gateway configuration, verify that the IP address for each VPN peer is accurate.
  • DIn the IPSec Crypto profile configuration, verify that PFS is either enabled on both VPN peers or

How the community answered

(32 responses)
  • A
    6% (2)
  • B
    78% (25)
  • C
    3% (1)
  • D
    13% (4)

Explanation

The VPN peer on one end is using policy-based VPN. You must configure a Proxy ID on the Palo Alto Networks firewall. https://docs.paloaltonetworks.com/pan-os/10-1/pan-os-admin/vpns/set-up-site-to-site- vpn/interpret-vpn-error-messages.html

Topics

#VPN Troubleshooting#IPSec VPN#IKE Phase 2#Proxy ID

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