The earliest recollection of this bug is traced back to PAN-OS 11.2.0 - July 08, 2026. When the firewall is running PAN-OS 11.2.0 and Advanced Routing is enabled, DHCPv4 relay agent functions successfully, but DHCPv6 relay agent doesn't work. For more information: https://docs.paloaltonetworks.com/pan-os/11-2/pan-os-release-notes/pan-os-11-2-0-known-and-addressed-issues/pan-os-11-2-0-known-issues https://docs.paloaltonetworks.com/pan-os/11-2/pan-os-release-notes/pan-os-11-2-1-known-and-addressed-issues/pan-os-11-2-1-known-issues https://docs.paloaltonetworks.com/pan-os/11-2/pan-os-release-notes/pan-os-11-2-10-known-and-addressed-issues/pan-os-11-2-10-known-issues https://docs.paloaltonetworks.com/pan-os/11-2/pan-os-release-notes/pan-os-11-2-11-known-and-addressed-issues/pan-os-11-2-11-known-issues https://docs.paloaltonetworks.com/pan-os/11-2/pan-os-release-notes/pan-os-11-2-12-known-and-addressed-issues/pan-os-11-2-12-known-issues https://docs.paloaltonetworks.com/pan-os/11-2/pan-os-release-notes/pan-os-11-2-13-known-and-addressed-issues/pan-os-11-2-13-known-issues https://docs.paloaltonetworks.com/pan-os/11-2/pan-os-release-notes/pan-os-11-2-2-known-and-addressed-issues/pan-os-11-2-2-known-issues https://docs.paloaltonetworks.com/pan-os/11-2/pan-os-release-notes/pan-os-11-2-3-known-and-addressed-issues/pan-os-11-2-3-known-issues https://docs.paloaltonetworks.com/pan-os/11-2/pan-os-release-notes/pan-os-11-2-4-known-and-addressed-issues/pan-os-11-2-4-known-issues https://docs.paloaltonetworks.com/pan-os/11-2/pan-os-release-notes/pan-os-11-2-5-known-and-addressed-issues/pan-os-11-2-5-known-issues https://docs.paloaltonetworks.com/pan-os/11-2/pan-os-release-notes/pan-os-11-2-6-known-and-addressed-issues/pan-os-11-2-6-known-issues https://docs.paloaltonetworks.com/pan-os/11-2/pan-os-release-notes/pan-os-11-2-7-known-and-addressed-issues/pan-os-11-2-7-known-issues https://docs.paloaltonetworks.com/pan-os/11-2/pan-os-release-notes/pan-os-11-2-8-known-and-addressed-issues/pan-os-11-2-8-known-issues https://docs.paloaltonetworks.com/pan-os/11-2/pan-os-release-notes/pan-os-11-2-9-known-and-addressed-issues/pan-os-11-2-9-known-issues