Converge Cloud NAT Gateway addresses diverse networking requirements across various business scenarios. Below are common use cases that demonstrate how organizations leverage NAT Gateway to optimize their cloud infrastructure.
Secure Internet Access for Private Instances
Organizations often deploy application servers, database instances, and backend services within private subnets for enhanced security. NAT Gateway enables these private instances to initiate outbound connections to the internet for software updates, patch management, API calls to external services, and data synchronization—all without exposing them to inbound internet traffic.
Example: An e-commerce platform runs its inventory management system on private CVMs that need to fetch product data from supplier APIs while remaining isolated from direct internet access for security compliance.
High-Volume Web Scraping and Data Collection
Businesses requiring large-scale data aggregation from public sources benefit from NAT Gateway's high throughput and concurrent connection capacity. The service supports up to 10 million simultaneous connections and 5 Gbps bandwidth, making it ideal for data-intensive operations.
Example: A market research firm operates multiple web crawlers that collect pricing information from thousands of e-commerce websites daily, requiring stable, high-bandwidth outbound connectivity.
Multi-Tier Application Architecture
Modern cloud applications often implement multi-tier architectures with presentation, application, and data layers. NAT Gateway facilitates secure internet connectivity for middle-tier services that need external access without direct public IP exposure.
Example: A SaaS platform uses NAT Gateway to enable its application tier to send transactional emails, process payment gateway requests, and integrate with third-party analytics services while maintaining a secure network perimeter.
Centralized Internet Gateway for Multiple Workloads
Organizations with numerous CVM instances can consolidate internet egress through a single NAT Gateway, simplifying network management and reducing IP address consumption. This approach enables centralized traffic monitoring, logging, and security policy enforcement.
Example: A digital agency manages 50+ client websites on separate CVM instances, using NAT Gateway to provide shared internet access while maintaining individual traffic monitoring and cost allocation per client.
Development and Testing Environments
Development teams require internet access for downloading packages, accessing version control repositories, and integrating with CI/CD pipelines, but shouldn't expose development instances directly to the internet. NAT Gateway provides the necessary connectivity while maintaining environment isolation.
Example: A software development company uses NAT Gateway to allow its staging and development CVMs to pull Docker images, access npm registries, and connect to GitHub while keeping these non-production environments secured.
Hybrid Cloud Connectivity
Enterprises operating hybrid cloud architectures use NAT Gateway to facilitate controlled internet access for cloud resources that communicate with on-premises systems, enabling seamless integration without compromising security boundaries.
Example: A financial institution extends its on-premises infrastructure to Converge Cloud, using NAT Gateway to enable cloud-based analytics workloads to access external market data feeds while maintaining strict network segmentation.
Public-Facing Services with IP Preservation
DNAT functionality allows organizations to host publicly accessible services behind NAT Gateway while preserving the ability to map specific ports and protocols. This enables hosting multiple services across different CVMs using a consolidated set of public IPs.
Example: A media company hosts multiple customer portals, each running on separate CVMs with different private IPs, but presents them all through a unified set of public EIPs via DNAT port mapping configurations.
Cost-Optimized Bandwidth Management
Organizations with variable traffic patterns leverage NAT Gateway's bandwidth package integration to share capacity across multiple applications, reducing costs by avoiding over-provisioning individual instance bandwidth.
Example: An online education platform experiences peak traffic during evening hours while B2B services peak during business hours, using bandwidth packages with NAT Gateway to optimize costs through time-shifted traffic patterns.
Compliance and Audit Requirements
Industries with strict regulatory requirements use NAT Gateway to create auditable, controlled internet access points. Centralized egress simplifies logging, monitoring, and compliance reporting for data protection regulations.
Example: A healthcare provider uses NAT Gateway as the single internet egress point for all systems processing patient data, enabling comprehensive traffic logging and audit trails for HIPAA compliance.
High-Availability Critical Applications
Mission-critical applications requiring guaranteed uptime leverage NAT Gateway's 99.99% availability SLA and automatic failover capabilities to ensure continuous internet connectivity without manual intervention during infrastructure failures.
Example: An IoT platform managing thousands of connected devices uses NAT Gateway to ensure its cloud-based control plane maintains uninterrupted internet connectivity for device communication and telemetry collection.