Disclaimer

Known affected versions were inferred from fixed-version data and were not explicitly confirmed by the vendor: 9.1.1

The earliest recollection of this bug is traced back to PAN-OS 9.1.2 - July 22, 2025. This bug is fixed in PAN-OS versions 9.1.2. ( PA-7000 Series and PA-3200 Series firewalls only ) Fixed an issue where when jumbo frames were enabled, the maximum transmission unit (MTU) size limit was lower than expected. For more information: https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-release-notes/pan-os-9-1-addressed-issues/pan-os-9-1-2-addressed-issues