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Geneve (Generic Network Virtualization Encapsulation) is the protocol used for communication between VM-Series firewalls and a Gateway Load Balancer (GWLB) in AWS. Geneve provides a flexible encapsulation method and is specifically supported for integrating with AWS GWLB to ensure seamless traffic flow and security inspection.

References:

AWS Gateway Load Balancer Documentation:AWS GWLB

Palo Alto Networks Integration Guide: Integrating VM-Series with AWS GWLB

Address Group:

Address groups in Palo Alto Networks firewalls allow for the grouping of multiple addresses or address objects. This capability enables the sharing of cloud-learned tags with on-premises firewalls, facilitating the consistent application of security policies across hybrid cloud environments.

Within a Cisco ACI architecture, Palo Alto Networks Next-Generation Firewalls (NGFWs) are deployed using service graphs. Service graphs in Cisco ACI define the sequence of network services that traffic must pass through. By configuring service graphs, administrators can seamlessly integrate Palo Alto Networks firewalls into the fabric to inspect and secure traffic flows.

References:

Palo Alto Networks and Cisco ACI Integration Guide: Service Graphs Integration

Cisco ACI Service Graph Documentation: Service Graphs

Dynamic address groups in Palo Alto Networks firewalls provide flexibility by allowing network resources to be added without requiring changes to existing policies and rules:

Dynamic address group: These groups automatically update based on tags and attributes assigned to network objects. When new resources are added with the appropriate tags, they are dynamically included in the address group, and the associated policies automatically apply to them without manual intervention.