Industrial NAT Gateway/Firewall

WALL IE PLUS - Industrial NAT Gateway/Firewall
WALL IE PLUS - Industrial NAT Gateway/Firewall
WALL IE - Simple and secure network integration

WALL IE PLUS – Industrial NAT Gateway/Firewall

Secure communication and simple addressing – WALL IE PLUS protects your automation network against unauthorized access. Due to the individual configuration, the firewall can be easily adapted to the requirements of the respective machine network.

The NAT operating mode serves the forwarding of the data traffic between various IPv4 networks. It enables the address translation via NAT and uses packet filters for the limitation of access to the automation network located behind. 
In the bridge operating mode, WALL IE acts as a layer 2 switch. In contrast with normal switches, however, packet filtering is also possible in this operating mode. This means that the restriction of access to individual areas of your network can be achieved without having to use different networks for this purpose.

The WALL IE PLUS provides 8 ports with up to 1000 Mbps transfer rate for networking. All 8 ports can be assigned to the WAN or LAN network as desired.

  • 8 ports for 100/1000 Mbps with free assignment to LAN or WAN network
  • Low effort for IP integration in higher-level networks (NAT)
  • Integration of series machines with the same IP addresses in the production network
  • NAT (Basic NAT, NAPT und Portforwarding)
  • SNAT: No adjustment of the network configuration in the LAN network necessary
  • Access restriction through packet filters: IPV4 addresses, protocol (TCP/UDP/ICMP), ports, MAC addresses 
  • Reduction of the network load through the filtering of broadcasts and multi-casts
  • Quick and easy configuration via a responsive web interface
  • Easily integrate same IP subnets through port forwarding (NAPT)
  • Reduced to the essential functionality
  • Import and export of the configuration
  • DHCP-Server (LAN) / DHCP-Client (WAN)
  • DNS-Server (LAN)
  • User administration
  • Space-saving industrial design for DIN rail
Download PDF datasheet
General information
Order number700-862-WAL01
Article nameWALL IE PLUS – Industrial NAT Gateway/Firewall
Scope of deliveryWALL IE PLUS, Quick Start Guide
Dimensions (DxWxH)34.5 x 101.5 x 75.5 mm
Weightapprox. 230 g
Number of inputs2 | 24 V (DC), as per DIN EN 61131-2 Type 2
WAN/LAN interface
Number8, configurable
ConnectionRJ45 socket
Transmission rate100/1000 Mbps
Operating modesBridge, NAT (Basic NAT, NAPT)
Packet filterIPV4 addresses, protocol (TCP/UDP),
ports: “WAN to LAN” and “LAN to WAN” separate,
MAC addresses (black & whitelisting)
Status indicator4 LEDs function status
8 LEDs port assignment
16 LEDs Ethernet status
Voltage supply24 V DC, 18–30 V DC
Current drawmax. 275 mA at 24 V DC
Power dissipationmax. 6,7 W
Ambient conditions
Ambient temperature0 °C ... +60°C
Transport and storage temperature-40 °C ... +85°C
Relative air humidity95 % r H without condensation
Pollution degree2
Protection ratingIP20
Mounting positionany


WALL IE - Simple and secure network integration
WALL IE - Industrial ethernet bridge and firewall

Technical Documentation

WALL IE / WALL IE PLUS, Quick Start Guide 15 2 MBWALLIE, Wall IE, Wallie, WALL IE Plus, WALLIE PLUS


WALL IE NAT Gateway/Firewall - simple machine integration 10-2022 1 MBWALLIE, Wall IE, Wallie

License Agreements

WALL IE, OpenSource licence terms 179 KBWALLIE, Wall IE, Wallie

Our products contain, among others, open source software. This software is subject to the applicable licensing conditions. We will send you the appropriate licensing conditions, including a copy of the complete licensing text, together with the product. These are also available in our download area of the respective product under www.helmholz.de. We also offer to send you or any third party the complete source code of the applicable open source software as a DVD upon request for a contribution towards costs of 10.00 Euro. This offer is valid for a period of three years as of the delivery of the product.