The earliest recollection of this bug is traced back to PAN-OS 8.1.3 - January 09, 2024. This bug is fixed in PAN-OS versions 8.1.3. Fixed an issue where the firewall displayed the following commit warning when you configured a GlobalProtect gateway with a Tunnel Interface set to the default tunnel interface ( Network GlobalProtect Gateways General ) even after you enabled IPv6: Warning: tunnel tunnel ipv6 is not enabled. IPv6 address will be ignored! For more information: https://docs.paloaltonetworks.com/pan-os/8-1/pan-os-release-notes/pan-os-8-1-addressed-issues/pan-os-8-1-3-addressed-issues