Category: AWS Network Firewall

Introduction Amazon Virtual Private Cloud (VPC) is a logically isolated virtual network. It has inbuilt network security controls and implicit routing between VPC subnets by design. Network security controls such as security groups (SGs) and network access control lists (ACLs) provide you with options to control network traffic. However these controls operate at network and transport […]

Introduction Regardless of size or industry, it’s common for organizations to have security and compliance rules for securing internet-bound traffic. AWS customers need control over, and the ability to filter, requests that are initiated by resources in private and public subnets and sent to the internet. This is also known as “egress filtering.” In AWS, […]

An update was made on July 24, 2025: With the availability of AWS Network Firewall Native AWS Transit Gateway support, the below design approach can be greatly simplified and is therefore no longer recommended. Instead we recommend to use AWS Network Firewall Native AWS Transit Gateway support. In this blog, we will walk through the […]