Network Segmentation

Common Challenges & Technical Drivers

• Complex, unmanageable point-to-point VPC peering connections creating routing sprawl.
• IP address CIDR collisions between cloud environments and on-premise networks.
• Databases and internal services accidentally exposed to public internet subnets.
• Lack of network flow log visibility making unauthorized connection attempts undetectable.

What Is Included (In-Scope Deliverables)

• Multi-VPC network topology design with centralized Transit Gateway routing.
• Private link endpoint configuration ensuring cloud service traffic never traverses the public internet.
• Route table segmentation, network access control lists (NACLs), and firewall rules.
• Automated VPC Flow Log aggregation to CloudWatch or central SIEM for traffic analysis.

Scope Boundaries & Transparent Exclusions

• Third-party cloud data transfer, NAT gateway, and Direct Connect physical link costs.
• Physical telco carrier circuit installation and on-premise router cabling.
• Purchasing public IPv4 address blocks from registries.
• Application-level layer-7 proxy debugging unrelated to network routing.

Tangible Engineering Deliverables

• Production Terraform networking modules provisioning VPCs, subnets, and routing tables.
• Comprehensive network topology diagram illustrating private links, transit gateways, and CIDR blocks.
• VPC Flow Log analysis configuration and automated unauthorized traffic alerting rules.
• Network disaster recovery runbook detailing secondary region failover routing.

Select your target cloud environment and operational scale to view projected engineering capacity and sprint milestones.

Enterprise baseline declaration module deployed as part of this service scope. Fully auditable, zero-lockin, turnkey source code.

resource "aws_ec2_transit_gateway" "hub" {
  description                     = "Production Central Transit Gateway"
  auto_accept_shared_attachments = "enable"
  default_route_table_association = "enable"
  dns_support                     = "enable"
  tags = { Environment = "Production" }
}

Sprint Delivery Roadmap & Phased Milestones

Frequently Asked Questions