Secure network architecture

AWS has network devices such as a firewall to monitor and control communications at the external and key internal boundaries of the network. These network devices use configurations, access control lists (ACL) and rule sets to enforce the flow of information to specific information system services. Traffic flow policies or ACLs are established on each managed interface that enforces and manage traffic flow. These policies are approved by Amazon information security. An ACL management tool is used to automatically push these policies, to help ensure these managed interfaces enforce the most up-to-date ACLs.