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Amazon Gateway Load Balancer (GWLB) stands out for firewall-inspection-routing by enabling centralized, scalable traffic inspection across VPCs without proxy overhead or IP changes. It supports both north-south internet flows and east-west inter-VPC traffic via PrivateLink endpoints. This architecture simplifies deployments compared to VPN tunnels or manual routing, preserving network transparency.[1][2][4]
Core experiences include routing outbound traffic through GWLB to firewall EC2 instances, inspecting inbound via VPC ingress routing, and securing multi-VPC east-west flows with Transit Gateway. Deploy in dedicated inspection VPCs with subnets for firewalls and Transit attachments. Activities focus on endpoint creation, route table updates, and auto-scaling integration.[1][2][5]
Operate year-round with peak efficiency in low-latency months; expect consistent AWS SLAs for uptime. Prepare route tables for 0.0.0.0/0 to GWLB targets and local VPC CIDRs. Test middlebox wizard for single-VPC setups or GWLB for multi-VPC scale.[3][4]
AWS security teams emphasize shared responsibility, with centralized inspection fostering enterprise-wide policy enforcement. Communities leverage AWS blogs and docs for patterns, integrating tools like Network Firewall. Insider tip: Combine with GuardDuty for automated threat detection.
Plan deployments around AWS Transit Gateway or Cloud WAN for inter-VPC routing to inspection VPCs. Book firewall appliances in active-active mode via Auto Scaling groups for redundancy. Test configurations in a staging environment before production rollout.
Prepare route tables for GWLB endpoints in each Availability Zone. Bring IAM policies enforcing least privilege on route modifications. Monitor with CloudTrail and GuardDuty for compliance.