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The earliest recollection of this bug is traced back to PAN-OS 10.2.8-h13 - July 22, 2025. This bug is fixed in PAN-OS versions 10.2.9, 10.2.8-h13. Fixed a duplicate MAC address issue where an ethernet interface sent out Gratuitous ARP (GARP) messages for an IP address that was not configured on it. For more information: https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-release-notes/pan-os-10-2-8-known-and-addressed-issues/pan-os-10-2-8-h13-addressed-issues https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-release-notes/pan-os-10-2-9-known-and-addressed-issues/pan-os-10-2-9-addressed-issues
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