Floating IP is not getting associated with the new Active Firewall after a failover on Oracle Cloud OCI

• Palo Alto VM Firewalls hosted on Oracle Cloud.
• High Availability (HA) configured as Active Passive.
• Failover performed from Active to Passive.
• Traffic issues observed after failover.

• Palo Alto VM Firewalls on Oracle CIoud
• High Availability (Active/Passive)

• DNS Servers configured on the Firewall are reachable through the Dataplane of the same Firewall.
• After the failover, the plugin on the Active FW needs to resolve DNS to associate the floating IP to itself for processing traffic.
• The Active FW is now unable to resolve the DNS as it needs to associate the floating IP first before processing any DataPlane traffic. 

Configure the DNS Servers  to be reachable through the Management interface and not through the Dataplane of the Firewall.