R2111 industrial NAT secure router buying guide
Best for
Ethernet-first OT/IT integration that needs five Gigabit Ethernet ports, NAT and routing, stateful firewall controls, secure VPN tunnels, DIN-rail installation, and RCMS remote management.
Not ideal for
Remote sites that require built-in 4G or 5G WAN, projects needing wireless sensor connectivity, or edge-computing workloads that require a higher-capacity application platform.
Key specs to check
Confirm the 1-WAN/4-LAN or 5-LAN topology, VLAN and NAT policy, static or dynamic routing, required VPN protocols, firewall rules, 12-36 VDC power, -20 to 55 degree C operating range, mounting, RobustOS applications, and RCMS workflow.
Typical deployments
Factory automation, PLC and machine integration, building automation, secure CCTV networks, OT network segmentation, controlled remote access, and centrally managed industrial Ethernet sites.
Technical resources and downloads
Use these official resources to verify specifications, plan deployment, manage software, and confirm support requirements.
- Robustel product download center - Request the current R2111 datasheet, manuals, firmware, and files against the exact order code before deployment.
- RobustOS platform overview - Review the operating-system features used for routing, NAT, firewall, VPN, applications, and secure management.
- RCMS remote device management - Evaluate centralized monitoring, configuration, OTA operations, and secure remote access for R2111 sites.
- Industrial router VPN and remote-access guide - Choose an appropriate VPN and access model before defining the router security policy.
- Request R2111 technical support - Confirm topology, VPN compatibility, firmware, documentation, and project-specific deployment requirements.
Related comparison paths
- Compare R1520 Global when the site also needs cellular WAN connectivity
- Compare R5020 Lite when secure routing also requires 5G throughput
Buyer questions
Is R2111 Industrial NAT Secure Router a good fit for my project?
It is a strong fit when your project matches the use cases listed in the Best for section and the key specs align with your network, interface, environmental, and management requirements.
What should I confirm before ordering R2111 Industrial NAT Secure Router?
Confirm regional connectivity, ports, power, mounting, operating environment, software features, management workflow, and whether you need accessories such as antennas, cables, sensors, or a gateway.
Can R2111 Industrial NAT Secure Router be used for SCADA, PLC, or remote monitoring?
Many Robustel products are used in SCADA, PLC, and remote monitoring workflows. Match the required protocol, interface, bandwidth, and security requirements to the product specifications before deployment.
Where should I go next if I am comparing options?
Compare the related collection, review application articles in the Industrial IoT Blog, or contact Robustel with your site requirements for a technical recommendation.
Next steps
Industrial NAT Secure Router
Model: R2111
Industrial Routers Product Overview
Designed to securely bridge OT and IT networks, providing robust, high-performance connectivity with five Gigabit Ethernet ports.
● Simplified OT & IT Integration:
Streamlines network setup with powerful NAT, routing functions, and IP Passthrough, easily connecting industrial equipment to enterprise networks.
● Comprehensive Network Security:
Runs on the hardened, penetration-tested Linux based RobustOS. Protects critical assets with a robust stateful firewall (including DMZ & anti-DoS) and supports secure VPN tunnels (IPsec, OpenVPN, DMVPN, GRE, Wireguard, etc.).
● Simplified Cloud Management:
Integrates fully with the RCMS cloud platform for fleet-wide monitoring, OTA updates of both the OS and applications running in containers, and secure remote access to end devices like PLCs, dramatically reducing operational costs.
Industrial Routers Specifications
System
● CPU: Dual-Core, 880 MHz
● RAM: 256 MB
● Storage: 32 MB
● Indicators: LED for Power, System (RUN), USR
Interfaces
● Ethernet: 5 x 10/100/1000 Mbps, RJ45, configurable as 1 x WAN + 4 x LAN, or 5 x LAN
Power & Physical
● Input Voltage: 12 to 36 VDC (Pluggable Terminal Block)
● Power Consumption: ~1.1W (Idle @ 12VDC), ~6.5W (Max @ 12VDC)
● Housing: Aluminum Alloy
● Protection: IP30
● Dimensions: 30 x 82 x 127 mm
● Weight: 309 g
● Installation: DIN-Rail, Wall Mount, Desktop
Environmental
● Operating Temperature: -20°C to +55°C
● Storage Temperature: -40°C to +85°C
● Relative Humidity: 5% to 95% (non-condensing)
Certifications
● Regulatory: CE
● Environmental Standards: RoHS 2.0, WEEE
Software
Operating System
● OS: RobustOS (Linux-based, optimized for Robustel industrial routers)
Key Supported Software & Protocols
● Supported Applications/Features: VRRP, QoS, SNMP, Edge2Cloud (Note: Availability may vary by specific router model and firmware version)
Networking
● Network Protocols: TCP, UDP, IPv4/v6, PPP, PPPoE, DHCP, ICMP, NAT, HTTP(S), DNS, NTP, SMTP, Telnet, VLAN, SSH2, DDNS
● Routing: Static routing; Dynamic routing (BGP, OSPFv2, RIPv1/v2)
Security
● VPN: IPsec, OpenVPN, Wireguard, GRE, L2TP, PPTP, DMVPN (Note: Specific protocol availability may be via 'Apps' or vary by model)
● Firewall: Stateful firewall with DMZ, anti-DoS, Filtering (IP/Domain name/MAC address), Port Mapping, Access Control
SDK & Customization
● SDK Languages: C, C++
● Available Resources: Approx. 5 MB Flash, 128 MB RAM dedicated for user applications (as stated in provided specs; may vary by specific router model)
Management
● Configuration Interfaces: Web GUI, Command Line Interface (CLI)
● Remote Management Platform: Robustel Cloud Manager Service (RCMS)
● RCMS Features:
● Centralized Monitoring & Control
● Fleet-wide Over-the-Air (OTA) updates for OS and firmware
● Secure Remote Access to device Web GUI/CLI and connected end-devices
Experience robust, cloud-native device management by registering at: https://rcms-cloud.robustel.net
Industrial Routers Applications
Factory Automation & Machine Integration
Building Automation & Access Control
Secure CCTV & Surveillance Networks
Industrial Routers Ordering Information
Order code: A014000008
Package contains: 1 x R2111, 1 x Wall mounting kit, 1 x global power adapter
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