Compliance Configuration of Industrial Router under Cybersecurity Classification Protection 2.0: A Practical Guide to Data Encryption and Access Control

In today's era of accelerated digital transformation, the Industrial Internet of Things (IIoT) has become a foundational infrastructure across critical sectors such as manufacturing, energy, and transportation. However, as cyberattack methods evolve, industrial router—serving as the "nerve center" connecting devices to the cloud—directly impact the stable operation of entire systems. Cybersecurity Classification Protection 2.0 (CCPS 2.0), a core standard in China's cybersecurity landscape, provides a clear framework for compliant configuration of industrial router. This article explores three key dimensions—data encryption, access control, and security auditing—combined with practical case studies and tool recommendations, to help enterprises efficiently achieve CCPS 2.0 compliance.

1. Core Requirements of CCPS 2.0 for Industrial Routers

CCPS 2.0 places industrial control systems under enhanced protection, outlining technical and managerial security requirements for industrial routers:

Technical Requirements:

• Data Encryption: SSL/TLS protocols must be implemented at the transport layer, while sensitive data (e.g., configuration files, logs) must be encrypted at the storage layer.
• Access Control: Role-based least-privilege management must be enforced, supporting features like IP whitelisting/blacklisting and port filtering.
• Security Auditing: Complete records of user operations and system events must be retained for ≥180 days, with real-time querying and anomaly detection capabilities.

Managerial Requirements:

• Develop documents such as the Cybersecurity Management System and Emergency Response Plan, clearly defining security responsibilities and operational procedures.
• Conduct regular security training and penetration testing to ensure ongoing compliance for personnel and systems.

2. Data Encryption: End-to-End Protection from Transmission to Storage

2.1 Transport Encryption: SSL/TLS Deployment

Industrial routers are often used for remote maintenance and device monitoring, where data transmitted over public networks is vulnerable to interception. Configuring SSL/TLS enables end-to-end encrypted communication.

Practical Steps (Using USR-G806w as an Example):

1. Generate Certificates: Use OpenSSL to create a self-signed certificate or request a commercial certificate from a CA.

1. Configure Router: In the USR-G806w's web interface, upload the certificate files, enable HTTPS, and force redirect to encrypted ports (e.g., 443).
2. Verify Effectiveness: Access the router's management page via a browser and confirm the "lock icon" and "HTTPS" label appear in the address bar.

2.2 Storage Encryption: Protecting Sensitive Data

Configuration files and logs stored locally on industrial routers contain sensitive information like device status and user actions, requiring encryption.

Technical Solutions:

• Symmetric Encryption: Use AES-256 to encrypt files, with keys dynamically distributed via a Key Management System (KMS). Example Python script for configuration file encryption:

• Hash Verification: Compute SHA-256 hashes for log files and periodically compare them to detect tampering. Example using Python's hashlib:

3. Access Control: Granular Permission Management

3.1 Account and Permission Separation

CCPS 2.0 mandates granting users the "minimum necessary privileges" to avoid centralized control risks.

Case Study:

• Multi-Account System: Create three account types on the USR-G806w:
  • Admin: Super administrator with configuration modification rights.
  • Audit: Auditor with read-only access to logs and system status.
  • Operator: Maintenance personnel who can reboot devices but cannot modify network parameters.
• Permission Configuration: Restrict account operations via the web interface or CLI. For example, configuring permission levels on a Huawei router:

3.2 Network-Level Access Control

Industrial routers must restrict unauthorized access using firewalls, IP whitelisting/blacklisting, and other techniques.

Key Configurations:

• Firewall Rules: Enable the firewall on the USR-G806w to block all inbound traffic by default, opening only essential ports (e.g., SSH 22, HTTP 80).
• VPN Encrypted Tunnels: Use IPSec VPN to establish secure remote channels, preventing data exposure on public networks. Example IPSec tunnel parameters:
  • Encryption Algorithm: AES-256
  • Authentication Method: IKEv2 + Pre-Shared Key
  • Lifetime: 8-hour auto-reconnection

4. Security Auditing: From Log Collection to Anomaly Detection

4.1 Log Collection and Storage

CCPS 2.0 Level 3 requires logs to be retained for ≥180 days and protected from tampering.

Technical Solutions:

• Centralized Log Management: Use ELK Stack (Elasticsearch + Logstash + Kibana) or Alibaba Cloud SLS to aggregate logs from routers, servers, and databases.
• Standardized Log Formats: Define uniform fields (timestamp, user ID, action type, result status) for easier analysis. Example audit logging in a Flask application:

4.2 Real-Time Auditing and Alerts

Automated tools detect anomalies (e.g., repeated failed logins, port scans) and trigger alerts.

Practical Tools:

• Kibana Dashboards: Configure visual panels to display metrics like failed login attempts and high-risk operation frequencies in real time.
• Splunk Alert Rules: Set thresholds (e.g., "≥5 failed logins in 5 minutes") to trigger email or SMS notifications.

5. Product Recommendation: USR-G806w Industrial Router

Among industrial routers, the USR-G806w stands out for its all-scenario adaptability and compliance features:

• Environmental Adaptability: All-metal casing, IP30 rating, and -20°C to +70°C wide-temperature operation suit factories and warehouses.
• Network Compatibility: Integrates 4G LTE, dual-band Wi-Fi, and dual Gigabit Ethernet ports, supporting automatic carrier switching for uninterrupted connectivity.
• Security Features: Built-in five-layer VPN encryption (IPSec/OpenVPN, etc.), firewalls, and IP whitelisting/blacklisting meet CCPS 2.0 access control requirements. Supports centralized management via the USR Cloud Platform for streamlined log collection and auditing.
• Smart Networking: The "USR DM Remote Networking" function enables cross-regional device interconnection without public IPs, reducing remote maintenance costs.

User Cases:

• Manufacturing Enterprise: Leveraged USR-G806w's remote networking to connect CNC machines nationwide to a unified platform. Maintenance personnel securely accessed devices via VPN, collecting real-time data and issuing remote commands, saving over ¥500,000 annually in on-site costs.
• Smart Agriculture Project: Deployed USR-G806w with temperature/humidity sensors in fields, uploading data to the cloud via 4G. Its IP rating and wide-temperature design ensured stable operation during rainy and high-temperature seasons, achieving 99.9% data transmission integrity.

6. Contact Us: Access Security Audit Templates and Customized Solutions

To help enterprises efficiently achieve CCPS 2.0 compliance, we offer:

• Free Security Audit Templates: Includes log format specifications, audit report samples, and gap analysis tables. Download via [Security Audit Template Portal].
• Customized Compliance Solutions: Provide end-to-end services tailored to industry-specific needs (manufacturing, energy, transportation) and system scales, covering device selection, configuration optimization, and ongoing maintenance.
• Expert Support: Our CCPS-certified team offers on-site guidance to ensure every step aligns with standards.

In an era of escalating cybersecurity threats, CCPS 2.0 compliance is not just a legal obligation but a cornerstone of digital transformation. By integrating data encryption, access control, and security auditing—supported by hardware like the USR-G806w—enterprises can build a "proactive defense, dynamic adaptation" security framework to safeguard business continuity and data assets.