LAPP ETHERLINE NF04T User manual

U.I. Lapp GmbH | Schulze-Delitzsch-Straße 25 | 70565 Stuttgart
Phone: [phone] | Fax: [phone] | [e-mail] | www.lappkabel.com
ETHERLINE®ACCESS NF04T - Industrial NAT Gateway und Firewall
Manual
Version 1 | 16.04.20 | as of Firmware V 1.08.200

Notes
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thereof.
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or any other methods), even for training purposes or with the use of electronic systems, without written approval
from U. I. Lapp GmbH
To download the latest version of this manual, please visit our website at www.lappkabel.com
We welcome all ideas and suggestions.
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Copyright © U.I. Lapp GmbH 2020. All rights reserved.
Schulze-Delitzsch-Straße 25 | 70565 Stuttgart
STEP, TIA, and SIMATIC are registered trademarks of Siemens AG.
Windows is a registered trademark of Microsoft Corporation.
Revision record:
Version
Date
Change
1
10.04.2020
first Version / Firmware V1.08.200

ETHERLINE®ACCESS NF04T | Version 1 | 04/16/20 3
Contents
1!General ................................................................................................................................ 5!
1.1!Target audience for this manual ............................................................................................................ 5!
1.2!Safety instructions................................................................................................................................. 5!
1.3!Note symbols and signal words ............................................................................................................. 6!
1.4!Intended use ......................................................................................................................................... 7!
1.5!Improper use ........................................................................................................................................ 7!
1.6!Installation ............................................................................................................................................ 8!
1.6.1!Access restriction .............................................................................................................................. 8!
1.6.2!Electrical installation ......................................................................................................................... 8!
1.6.3!Protection against electrostatic discharges ........................................................................................ 8!
1.6.4!Overcurrent protection ..................................................................................................................... 8!
1.6.5!EMC protection ................................................................................................................................. 8!
1.6.6!Operation ......................................................................................................................................... 8!
1.6.7!Liability ............................................................................................................................................. 9!
1.6.8!Disclaimer of liability ......................................................................................................................... 9!
1.6.9!Warranty .......................................................................................................................................... 9!
2!Security recommendations ................................................................................................ 10!
3!Overview............................................................................................................................ 11!
3.1!Setup ...................................................................................................................................................11!
3.2!Connection of the power supply ...........................................................................................................12!
3.3!LEDs status information........................................................................................................................12!
4!Initial access to the web interface ...................................................................................... 13!
4.1!Initial registration .................................................................................................................................14!
4.2!Main view ............................................................................................................................................15!
4.2.1!Menu overview ................................................................................................................................16!
4.2.2!Responsive design ............................................................................................................................16!
5!Choosing the operating mode ............................................................................................ 17!
5.1!The NAT operating mode......................................................................................................................17!
5.2!The Bridge operating mode ..................................................................................................................18!
6!Application case NAT ......................................................................................................... 19!
6.1!Adjustment of the IP addresses in the NAT operating mode..................................................................19!
6.2!Activate DHCP client at the WAN interface ...........................................................................................20!
6.3!Setting up “Basic NAT” rules .................................................................................................................21!
6.4!Packet filter “WAN to LAN” ..................................................................................................................23!
6.5!ICMP Traffic “WAN to LAN” ..................................................................................................................25!
6.6!Packet filter “LAN to WAN” ..................................................................................................................25!
6.7!ICMP Traffic “LAN to WAN” ..................................................................................................................26!

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6.8!SNAT ....................................................................................................................................................26!
6.9!NAPT ....................................................................................................................................................27!
6.10!Port forwarding ....................................................................................................................................28!
7!Application case Bridge...................................................................................................... 30!
7.1!Activate Bridge mode ...........................................................................................................................30!
7.2!Adjustment of the IP addresses in the bridge operating mode ..............................................................30!
7.3!Packet filter “WAN to LAN” ..................................................................................................................31!
7.4!ICMP Traffic “WAN to LAN” ..................................................................................................................33!
7.5!Packet filter “LAN to WAN” ..................................................................................................................34!
7.6!ICMP Traffic “LAN to WAN” ..................................................................................................................34!
8!MAC address filtering......................................................................................................... 35!
9!Static routes ...................................................................................................................... 36!
10!Use with Simatic Step 7 / TIA portal............................................................................... 37!
10.1!Application with step 7 .........................................................................................................................38!
10.2!Use in the TIA portal .............................................................................................................................39!
11!Other functions............................................................................................................... 41!
11.1!DHCP server for LAN.............................................................................................................................41!
11.2!Host name (WAN) ................................................................................................................................42!
11.3!Syslog server ........................................................................................................................................42!
11.3.1!Syslog local ..................................................................................................................................42!
11.3.2!Syslog remote ..............................................................................................................................43!
11.4!Change password / User management .................................................................................................43!
11.5!File certificate (HTTPS) .........................................................................................................................45!
11.6!Allow web interface access over WAN network (Web Interface Access) ................................................45!
11.7!Time settings (Time) .............................................................................................................................46!
11.8!Export/import of configuration.............................................................................................................47!
12!Firmware update............................................................................................................. 48!
13!Resetting to factory settings........................................................................................... 49!
13.1!Resetting to factory settings via the website .........................................................................................49!
13.2!Resetting to factory settings with button ..............................................................................................49!
14!FAQ ................................................................................................................................ 50!
15!Technical data ................................................................................................................ 51!
15.1!Dimensioned drawing ..........................................................................................................................52!

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1 General
This operating manual applies only to devices, assemblies, software, and services of U. I. Lapp GmbH
1.1 Target audience for this manual
This description is only intended for trained personnel qualified in control and automation engineering who are
familiar with the applicable national standards. For installation, commissioning, and operation of the components,
compliance with the instructions and explanations in this operating manual is essential.
Configuration, execution, and operating errors can interfere with the proper operation of the ETHERLINE®ACCESS
NF04T and result in personal injury, as well as material or environmental damage. Only suitably qualified personnel
may operate the devices!
The specialist personnel is to ensure that the application or the use of the products described fulfills all safety
requirements, including all applicable laws, regulations, provisions, and standards.
1.2 Safety instructions
The safety instructions must be observed in order to prevent harm to living creatures, material goods, and the
environment. The safety notes indicate possible hazards and provide information about how hazardous situations
can be prevented.

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1.3 Note symbols and signal words
If the hazard warning is ignored, there is an imminent danger to life and health of people from electrical voltage.
If the hazard warning is ignored, there is a probable danger to life and health of people from electrical voltage.
If the hazard warning is ignored, people can be injured or harmed.
Draws attention to sources of error that can damage equipment or the environment.
Gives an indication for better understanding or preventing errors.

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1.4 Intended use
The ETHERLINE®ACCESS NF04T Industrial Ethernet Bridge and Firewall (“the device” in the following) connects two
Ethernet networks.
All components are supplied with a factory hardware and software configuration. The user must carry out the
hardware and software configuration for the conditions of use. Modifications to hardware or software configurations
that extend beyond the documented options are not permitted and nullify the liability of U. I. Lapp GmbH.
The device may not be used as the only means for preventing hazardous situations on machinery and systems.
Successful and safe operation of the device requires proper transport, storage, setup, assembly, installation,
commissioning, operation, and maintenance.
The ambient conditions provided in the technical specifications must be adhered to.
The device has a protection rating of IP 20 and must be installed in an electrical operating room or a control
box/cabinet in order to protect it against environmental influences. To prevent unauthorized access, the doors of
control boxes/cabinets must be closed and possibly locked during operation.
1.5 Improper use
The consequences of improper use may include personal injury to the user or third parties, as well as property
damage to the control system, the product, or the environment. Use the device only as intended!

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1.6 Installation
1.6.1 Access restriction
The modules are open operating equipment and must only be installed in electrical equipment rooms, cabinets, or
housings.
Access to the electrical equipment rooms, cabinets, or housings must only be possible using a tool or key, and
access should only be granted to trained or authorized personnel.
1.6.2 Electrical installation
Observe the regional safety regulations.
1.6.3 Protection against electrostatic discharges
To prevent damage through electrostatic discharges, the following safety measures are to be followed during
assembly and service work:
• Never place components and modules directly on plastic items (such as polystyrene, PE film) or in their vicinity.
• Before starting work, touch the grounded housing to discharge static electricity.
• Only work with discharged tools.
• Do not touch components and assemblies on contacts.
1.6.4 Overcurrent protection
Overcurrent protection isn’t necessary as the device transports no load current. The power supply of the device
electronics is to be secured externally with a fuse of maximum 1 A (slow-blowing).
1.6.5 EMC protection
To ensure electromagnetic compatibility (EMC) in your control cabinets in electrically harsh environments, the
known rules of EMC-compliant configuration are to be observed in the design and construction.
1.6.6 Operation
Operate the device only in flawless condition. The permissible operating conditions and performance limits must be
adhered to.
Retrofits, changes, or modifications to the device are strictly forbidden.
The device is a piece of operating equipment intended for use in industrial plants. During operation, all covers on
the unit and the installation must be closed in order to ensure protection against contact.

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1.6.7 Liability
The contents of this manual are subject to technical changes resulting from the continuous development of
products of U. I. Lapp GmbH In the event that this manual contains technical or clerical errors, we reserve the right
to make changes at any time without notice.
No claims for modification of delivered products can be asserted based on the information, illustrations, and
descriptions in this documentation. Beyond the instructions contained in the operating manual, the applicable
national and international standards and regulations must also be observed in any case.
1.6.8 Disclaimer of liability
U. I. Lapp GmbH is not liable for damages if these were caused by use or application of products that was improper
or not as intended.
U. I. Lapp GmbH assumes no liability for any printing errors or other inaccuracies that may appear in the operating
manual, unless there are serious errors of which U. I. Lapp GmbH was already demonstrably aware.
Beyond the instructions contained in the operating manual, the applicable national and international standards and
regulations must also be observed in any case.
U. I. Lapp GmbH is not liable for damage caused by software that is running on the user’s equipment that
compromises, damages, or infects additional equipment or processes through the remote maintenance connection,
and which triggers or permits unwanted data transfer.
1.6.9 Warranty
Report any defects to the manufacturer immediately upon discovery of the defect.
The warranty is not valid in case of:
• Failure to observe these operating instructions
• Use of the device that is not as intended
• Improper work on and with the device
• Operating errors
• Unauthorized modifications to the device
The agreements met upon contract conclusion under “General Terms and Conditions of U. I. Lapp GmbH” apply.

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2 Security recommendations
ETHERLINE®ACCESS NF04T is a network infrastructure component, and thus an important element in the security
considerations of a system or network. When using ETHERLINE®ACCESS NF04T, therefore please consider the
following recommendations in order to prohibit unauthorized access to plants and systems.
General:
• Ensure at regular intervals that all relevant components fulfill these recommendations and possibly any other
internal security guidelines.
• Evaluate your system holistically with a view to security. Use a cell protection concept with corresponding
products, such as the ETHERLINE®ACCESS NF04T.
You can find extensive information, for example, in the “ICS Security Compendium” of the
Federal Office for Information Security (BSI):
https://www.bsi.bund.de/SharedDocs/Downloads/DE/BSI/ICS/ICS-
Security_kompendium_pdf.html
Physical access:
• Limit physical access to components of relevance to security to qualified personnel.
Security of the software:
• Always keep the firmware of all communications components up to date.
• Inform yourself regularly of firmware updates for the product.
You can find information on: www.lappkabel.com/activenetworkcomponents
• Only activate protocols and functions you really need
Passwords:
• Define rules for usage of the devices and the awarding of passwords.
• Update passwords and keys regularly
• Change standard passwords
• Only use strong passwords. Avoid weak passwords like, for example, “password1”, “123456789”, or similar.
• Ensure that all passwords are protected and inaccessible to unauthorized personnel.
• Don’t use one password for various users and systems.