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Oct 22, 2026 · Cloud Computing

Isolated VPC Egress Redesign: Unified EIP Gateway with Deterministic Port Blocks

This article analyzes structural defects in traditional SNAT-based egress for isolated VPCs—public IP waste and unauditable dual egress—and presents a standard path redesign using a unified EIP gateway with deterministic port block allocation, VXLAN tunnels, and DPVS isolate_public for auditable, scalable outbound internet access.