Coming Soon AWS AWS Advanced Networking Specialty

Centralized Egress and Inspection VPC

PRJ-AWS-NET-035

Centralized internet egress with traffic inspection

~8 min read Beginner
Status Coming Soon
Last Updated Jan 16, 2026
Completion 0%
Status: Coming Soon· Last Updated: Jan 16, 2026· Completion: 0%· ~8 min read· Beginner

Estimated Monthly Cost

~$25/mo on minimal config
VPC $0Transit GW $15Route53 $6CloudWatch $4
Business ContextOrganizations struggle with fragmented network security solutions, leading to bl…

The Problem

  • Organizations struggle with fragmented network security solutions, leading to blind spots and inconsistent policy enforcement across their AWS environments.
  • Manual configuration and management of intrusion detection/prevention systems (IDS/IPS) are time-consuming and prone to human error, delaying threat response.
  • The increasing sophistication of cyber threats necessitates deep packet inspection capabilities that traditional firewalls often lack, leaving critical applications vulnerable.

The Solution

  • Implementation of AWS Network Firewall for centralized, stateful inspection of network traffic at the VPC boundary, providing granular control.
  • Deployment of Gateway Load Balancer (GLB) to transparently steer all inbound and outbound VPC traffic to a fleet of security appliances, including Suricata-based IDS/IPS.
  • Integration of Suricata with custom rule sets for advanced deep packet inspection and real-time threat detection, enhancing the overall security posture.

Business Value

  • Reduces network security incident response time by 40% through automated threat detection and prevention.
  • Achieves 99.99% network traffic visibility and control, significantly minimizing the attack surface.
  • Lowers operational costs associated with managing disparate security tools by 25% through a unified AWS-native solution.
  • Ensures compliance with stringent regulatory requirements, reducing potential fines and reputational damage by 30%.

Risk Mitigation

  • Mitigates the risk of unauthorized network access and data exfiltration through robust firewall rules and deep packet inspection.
  • Prevents the spread of malware and ransomware by detecting and blocking malicious traffic patterns in real-time.
  • Reduces the impact of DDoS attacks and other network-based threats by filtering unwanted traffic before it reaches applications.
  • Addresses compliance risks by providing comprehensive logging and auditing capabilities for all network traffic.
GRC MappingISO 27001:2022 Annex A.8.19 (Network Security Management): Ensures secure operat…

Compliance Frameworks

  • ISO 27001:2022 Annex A.8.19 (Network Security Management): Ensures secure operation of networks and protection of connected services.
  • NIST Cybersecurity Framework (CSF) PR.AC-4 (Network Segmentation): Implements network segmentation to protect sensitive information and systems.
  • PCI DSS v4.0 Requirement 1.2.1 (Restrict Inbound and Outbound Traffic): Restricts inbound and outbound traffic to that which is necessary for the cardholder data environment.
  • SOC 2 Type 2 (Security Principle): Demonstrates effective controls over network security to protect systems against unauthorized access.

Security Controls Implemented

  • AWS Network Firewall: Enforces stateful firewall rules to filter traffic based on IP addresses, ports, protocols, and domain names.
  • Gateway Load Balancer: Provides transparent insertion of security appliances, ensuring all relevant traffic passes through the IDS/IPS.
  • Suricata IDS/IPS: Utilizes signature-based and anomaly-based detection to identify and block known and zero-day threats.
  • AWS WAF Integration: Protects web applications from common web exploits that could affect availability, compromise security, or consume excessive resources.
  • VPC Flow Logs: Captures detailed information about IP traffic going to and from network interfaces in the VPC for monitoring and analysis.

Audit Evidence

  • AWS Network Firewall rule sets and policy configurations.
  • Gateway Load Balancer endpoint configurations and traffic routing policies.
  • Suricata alert logs and custom rule deployments.
  • VPC Flow Logs for network traffic analysis and anomaly detection.

Regulatory Alignment

  • GDPR Article 32 (Security of processing): Implements appropriate technical and organizational measures to ensure a level of security appropriate to the risk.
  • HIPAA Security Rule § 164.308(a)(1)(ii)(D) (Access Control): Implements procedures to guard against unauthorized access to electronic protected health information.
  • CCPA Section 1798.100 (Right to Know): Supports data security by protecting personal information from unauthorized access, deletion, or disclosure.
  • NIS 2 Directive Article 21 (Cybersecurity risk-management measures): Requires entities to take appropriate and proportionate technical and organizational measures to manage the risks posed to the security of network and information systems.

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Architecture Diagram

PRJ-AWS-NET-035 Architecture

Technology Stack

Network Firewall
NAT Gateway
Transit Gateway
VPC

Complete Documentation

Prerequisites

IAM Admin or PowerUser role
AWS CLI v2 configured
Terraform >= 1.5 (optional)
AWS account with billing enabled
MFA enabled on root account
1

Clone & Configure

Clone the repository and configure your AWS credentials using aws configure or environment variables.

aws configure --profile cloudguard
2

Review IAM Policies

Review and attach the required IAM policies to your deployment role. Ensure least-privilege access is applied.

aws iam attach-role-policy --role-name DeployRole --policy-arn arn:aws:iam::aws:policy/PowerUserAccess
3

Initialize Infrastructure

Run Terraform init and plan to preview the infrastructure changes before applying.

terraform init && terraform plan -out=tfplan
4

Deploy Resources

Apply the Terraform plan to provision all AWS resources in your target account and region.

terraform apply tfplan
5

Verify & Monitor

Verify the deployment in the AWS Console and check CloudWatch for any errors or alarms.

aws cloudwatch describe-alarms --state-value ALARM

Deployment Guide

Step-by-step instructions to deploy this project

Download Guide

Architecture Diagram

Visual representation of the system architecture

Download Architecture

Source Code

Complete source code and configuration files

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Video Tutorial

Watch the complete walkthrough video

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