<ul><li>AWS allows deploying a third-party network perimeter firewall using Gateway Load Balancer at Layer 3 and Layer 4 of the OSI model.</li><li>Gateway Load Balancer serves as a single entry and exit point for all traffic that needs to be inspected.</li><li>It ensures transparent traffic flow for applications and NVAs by maintaining source and destination IP addresses and ports.</li><li>An example networking architecture involves a purpose-built security VPC with Gateway Load Balancer deployed in a public subnet and NVAs in private subnets.</li></ul>

Deploying a Third-Party Network Perimeter Firewall on AW

Discover more