Why and how to migrate to a Transit Gateway-attached AWS Network Firewall
ID: 1ccbbb5b-02e2-5a2d-b5b0-e73f9b2aafcb
STIX ID: report--1ccbbb5b-02e2-5a2d-b5b0-e73f9b2aafcb
Feed Name: AWS Security Blog
This AWS blog post explains Transit Gateway-attached Network Firewall—how it removes the need for an inspection VPC, enables flexible cost allocation via Transit Gateway metering policies, and reduces architectural complexity—and provides high-level and architecture-specific migration guidance (prerequisites, routing updates, phased cutover, testing, rollback, and preserving NAT gateway Elastic IPs), with links to detailed Terraform/CloudFormation/console migration templates and a migration guide repository.
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