Weidmuller Ie-sr-2gt-lan User manual

Industrial Security Router / Firewall

IE-SR-2GT-LAN

IE-SR-2GT-UMTS/3G

Manual

Version 1.2.4

September 2013

Important notes:

This document continously will be updated and completed step-by-step.

This version refers to Router firmware version 2.3.1 and above.

You may download a new version from the Weidmüller web site using the following path:

1. Open http://www.weidmueller.com/IE

2. Select section „Industrial Ethernet“ „Documents”

3. Select category „Manuals“

4. Download “ Manual_IE-SR-2GT-LAN-3G-UMTS_EN_Vx_yy.pdf

Industrial Security Router / Firewall

IE-SR-2GT-LAN

IE-SR-2GT-UMTS/3G

The software described in this manual is furnished under a license agreement and may be used only in ac-

cordance with the terms of that agreement.

Reproduction without permission is prohibited.

Disclaimer

Information in this document is subject to change without notice and does not represent a commitment on

the part of Weidmüller.

Weidmüller provides this document "as is," without warranty of any kind, either expressed or implied, includ-

ing, but not limited to, its particular purpose. Weidmüller reserves the right to make improvements and/or

changes to this manual, or to the products and/or the programs described in this manual, at any time.

Information provided in this manual is intended to be accurate and reliable. However, Weidmüller assumes

no responsibility for its use, or for any infringements on the rights of third parties that may result from its use.

This product might include unintentional technical or typographical errors. Changes are periodically made to

the information herein to correct such errors, and these changes are incorporated into new editions of the

publication.

Contact Information

Weidmüller Interface GmbH & Co. KG

PO box 3030

32760 Detmold

Klingenbergstrasse 16

32758 Detmold

Germany

Phone +49 (0) 5231 14-0

Fax +49 (0) 5231 14-2083

E-Mail info@weidmueller.com

Internet www.weidmueller.com

Table of Contents

Industrial Security Router / Firewall.................................................................................1

1. Introduction .......................................................................................................................................5

Proper and intended usage.................................................................................................................5

2. Package Checklist.............................................................................................................................5

3. Safety instructions............................................................................................................................6

4. Mounting the device..........................................................................................................................7

5. Technical data ...................................................................................................................................8

6. Hardware related functional descriptions ....................................................................................11

Pin assignment of power supply connector.......................................................................................13

Pin assignment of RJ45 Ethernet ports (LAN and WAN)..................................................................13

Pin assignment of 4-pin connector for „VPN initiate“ and „VPN active“............................................13

Pin assignment of 4-pin connector for „Cut WAN port“ and „Signalize Alarm“ .................................13

Pin assignment of USB 2.0 connector ..............................................................................................14

Pin assignment of Smartcard Reader (ISO 7816 Standard).............................................................14

7. Initial start-up / Getting Started .....................................................................................................14

Configuration of the Router by using an Internet browser ................................................................14

Starting the Web interface.................................................................................................................15

8. Reset to factory default settings by external push button .........................................................17

Default factory settings of the Router:...............................................................................................17

9. Using the Weidmüller Router-Search-Utility ................................................................................18

10. Basic description of the configuration interface (menu items)..................................................19

Section Diagnostics...........................................................................................................................19

Section Configuration........................................................................................................................19

Section System .................................................................................................................................19

Section Informations..........................................................................................................................19

11. Explanation of the menu items of web interface in chronological order ..................................20

A. Application scenarios (Uses cases) for Routing, NAT and Firewalling ...............................................47

A1 - Configuring the Router to connect 2 networks with different IP address ranges ...........................47

A2 - Connecting 2 Ethernet networks with activated NAT masquerading and using IP address

forwarding........................................................................................................................................53

A3 - Configuring the Router to connect 2 networks with different IP address ranges and additional

firewall rules ....................................................................................................................................59

A4 - Connecting 2 Ethernet networks with the same IP address range to another network using 1:1

NAT address translation.................................................................................................................70

A5 - Using dynamic IP routing as an alternative for manually configuring static routes.......................82

B. Application scenarios (Uses cases) for VPN (Virtual private networks)..............................................85

B1 - OpenVPN based remote access application via “Meeting Point” .....................................................85

Description of a remote access application to allow a communication between protected, not

directly accessible machine networks and remote Service-PC’s by using a public OpenVPN-Server

as „Meeting-Point“ .............................................................................................................................85

B2 - Configuring an OpenVPN remote access scenario using a Weidmüller Router as OpenVPN-

Server ...............................................................................................................................................85

B3 - Configuring an IPsec scenario between 2 Routers (Client and Server)............................................85

C. Additional application notes.....................................................................................................................86

C1- How to start and stop a pre-defined OpenVPN connection by external 24 VDC input.....................86

C2- Description how to disable the Ethernet connection at WAN port.....................................................88

C3- Description how to use the feature “Remote Capture” with Wireshark to analyze the LAN/WAN

traffic of the Router.........................................................................................................................96

C4- Description how to configure the Internet access of a PC via a 3G Router............................101

1. Introduction

Proper and intended usage

The Router is intended for use in industrial (IP20) environments. It is equipped with Ethernet interface ports

and is used solely for connecting components within a network.

By connecting network components, the Router enables network nodes to exchange data. The Router also

allows an industrial IP network to access the Internet via an external DSL modem (via PPPoE). The Router is

responsible for routing IP packets between an industrial network and an external network (such as the Inter-

net). Internet access is automatically activated when needed. The Router can be configured on-site using an

IP network on both Ethernet ports (LAN or WAN).

The Router has implemented extensive security standards to enable different networks to work together

smoothly

Additionally VPN (virtual private network) connections can be used to connect the Router as a VPN-Client or

a VPN-Server with other VPN devices.

2. Package Checklist

Models IE-SR-2GT-LAN and IE-SR-2GT-UMTS/3G

1 x Industrial Security Router (IE-SR-2GT-LAN or IE-SR-2GT-UMTS/3G)

1 x 3-pin connector for power supply

2 x 4-pin connectors for special digital inputs and output signals (Alarm, CUT, VPN)

1 x Ethernet cable ( Length 1 m, Color red)

1 x Hardware Installation Guide

Additional for model IE-SR-2GT-UMTS/3G (with an additional 3G modem)

1 x antenna for mobile connection

If any of these items are missing or damaged, please contact your customer service representative for assis-

tance.

3. Safety instructions

Warning

- Using the selected device for purposes other than those specified or failure to

observe the operating instructions and warning notes can lead to serious malfunc-

tions that may result in personal injury or damage to property.

- If this product malfunctions, it is no longer possible to predict the behaviour of

neighbouring networked facilities and their connected devices. Personal injury and

property damage can occur as a result of malfunctions. Only carry out changes to

the settings when you are certain of the consequences such changes will have on

all connected networks, facilities and devices.

- Personal injury and property damage can occur as a result if this product is used

improperly. Adjustments and setting changes to this product should only be carried

out by sufficiently qualified personnel.

Caution

- This device is designed only for an operating voltage range from 7 to 36 V DC. Do

not use a higher voltage; this could destroy the Router and other devices.

- The Security Router does not have an on/off switch. The operating voltage must

be switched on by the facility in which the device is integrated.

Caution

You should activate and synchronise the time server or set the system time manu-

ally if you are using certificates in virtual private networks (VPNs) or simple network

management protocol (SNMP). An inaccuracy in the system time can cause the

virtual private network (VPN) to malfunction.

You should synchronise the system time with a time server after each Router re-

boot and after you load the default settings. Or you can set the system time manu-

ally.

Caution

- The default system access information for the Security Router is included in this

document. Unauthorized individuals can use this access data to gain access to the

Router's web browser and cause damage. Be sure to change these system default

access settings.

- Some services may be blocked by a firewall. You may need to deactivate the

firewall. By deactivating the firewall, the PC is no longer protected against viruses

or other attacks. Only deactivate the firewall when your PC is sufficiently protected

by other measures.

- A single port can only properly execute one service. If multiple services are as-

signed to a port, the port can no longer execute any service. Be sure to assign only

one service to any port.

4. Mounting the device

Caution

- This device is designed only for a operating voltage range from +7 to 36 VDC. Do

not use a higher voltage; this could destroy the Router and other devices.

- Connecting plugs should never be connected or disconnected from electrical de-

vices if they are carrying a live load. Be sure to first disconnect all poles of the plug.

Remember to disconnect all plugs from the Router before it is installed or removed.

- Electrical devices should not be installed or removed during operations. Never

install or remove the Router while it is running.

Caution

- It is important to provide sufficient clearance between devices which cause strong

electromagnetic interference (such as frequency converters, transformers or motor

regulators). The clearance gap between such devices and the Router should be as

wide as possible. The Router can be further shielded by using a mu-metal partition.

- The Router is designed to be mounted on a top-hat rail that is compliant with the

EN 50022 standard. This Router will not have a secure mount if any other type of

rail is used. Use a top-hat rail that complies with the EN 50022 standard. Be sure to

observe the mounting information provided by the manufacturer.

Note

- A minimum of 2 inch (5 cm) gap should be kept between the Router and

neighbouring devices from the top and bottom. This will ensure that the Router is

sufficiently ventilated and prevent induction from developing.

- The top-hat rail should be located in a horizontal position along the vertical rear

wall of the electrical cabinet. This ensures that the Router can be adequately venti-

lated from below to above.

Note

- The IP protocol reserves certain IP address ranges for special purposes (such as

multicasting). Do not assign IP addresses in the range from 127.0.0.0 –

127.255.255.255 or 224.0.0.0 –255.255.255.255.

- This device is intended for use in applications as described in the operating in-

structions only. Using this device in non-approved applications will lead immedi-

ately to the expiration of all guarantee and warranty claims on the part of the op-

erator against the manufacturer.

DIN-rail mounting:

Insert the top of the DIN-rail clip behind the upper edge of the DIN-

rail (1). Then open the latch at bottom of the device by using a flat-

bladed screwdriver and fix the device on the DIN-rail by gently

pressing on the bottom (2).

To remove the Router from the DIN-Rail, simply reverse the steps

as described above.

5. Technical data

Operation mode

IP-Router

Static or dynamic routing according to

RIPv2 or OSPF protocol

Transparent Bridge

2-Port-Switch with additional Layer-2 fil-

ter

Network Services

DHCP Server / DHCP Relay

DNS-Relay

NTP-Client

DynDNS (DHCP-Client nach RFC 2136)

Firewall

IPv4 Stateful inspection Firewall

NAT-Masquerading, 1:1 NAT,

Portforwarding

Layer-2/3-Filter (VLAN ID, VLAN QoS

Tag, MAC adddress based, Ethertype

Frame)

"Auto-Learning"-function to create new

packet filter rules (Analysis of the net-

work traffic)

Layer 2/3 packet priorizitation (Ethernet

Frame, IP Header, VLAN Tag)

VPN

OpenVPN

Configurable as OpenVPN server or cli-

ent (Layer 2 and Layer 3)

Authentication with X.509 Certificates

Tunnel support via HTTP-Proxy

A maximum of 10 different server con-

figurations

Unlimited number of client connections in

server mode

IPsec

Can be configured as an IPsec server or

client

Authentication with PSK (user ID, pass-

word) or X.509 certificates

Hardware encryption for faster data flow

rate

A maximum of 64 simultaneous connec-

tions (subnet with subnet or as IPsec

server)

Encryption algorithms DES-56, 3DES-

168, AES 128, AES 192, AES-256

Management

Configuration with web interface

(HHTP/HTTPS)

Web interface selectable in english or

german language

Configuration support through detailed

help information (tooltip)

Configurable Multi-user access with de-

finable rights

Support for SNMP v1/v3/v3

Event log / syslog

Other features

Modbus/TCP

The Modbus/TCP interface enables the con-

trol of the Router by a PLC. Following func-

tions are imaged in the registers:

Cut & Alarm, status request & acknowl-

edgment

IPsec, on/off switchable generally

OpenVPN, separate status request and

activation / deactivation of the 10 possi-

ble OpenVPN connections

Diagnosis

„Remote Capture“- feature for network

diagnostics via a connected PC (Wire-

shark)

Monitoring

Client monitoring via ICMP protocol (ping

request) with alarm function in case of er-

ror

Interfaces

RJ45-Ports

2 * 10/100/1000BaseT(X)

USB-Port

option for future expansion

SCM card Reader

Save and restore the configuration using

a smart card (SIM card without mobile

provider data, only the storage capacity

of the chip will be used)

LED display

Signaling the status for power, device

status, Cut, Alarm, active VPN connec-

tion and an active 3G connection

Digital Outputs

"Alarm" -> Indicates a configurable net-

work status or error (24V out)

"VPN-active" -> Indicates an active VPN

connection (24 V out)

Digital Inputs

"Cut" -> Disconnects physically (link

down) the WAN port (24 V In)

"VPN-initiate" -> Enables a pre-

configured VPN connection (24 V In)

Reset-Button

Restore to the factory settings

Power

Input Voltage

1* 24 VDC (7 bis 36 Volt)

Current consumption

max. 600mA @ 24 VDC

Technical data (housing)

Housing

Metal, protection IP20

Dimensions (width, height, depth)

35 * 159 * 134 mm (without antenna)

35 * 255 * 134 mm (with 3G antenna)

Mounting

TS35 (DIN rail)

Environmental conditions

Operating Temperature

-20°C to +70°C

Storage Temperature

-20°C to + 85°C

Ambient Humidity

6 to 90% noncondensing

DSL and 3G/HSDPA

DSL

DSL Internet access by connecting an

external DSL modem via LAN or WAN

port

Free configuration of the PPPoE login

DynDNS

Support for automatic registration

UMTS/3G

(Only model IE-SR-2GT-UMTS/3G)

Built-in quad-band 3G / HSPA modem

21.1 Mbps peak downlink

5.8 Mbps peak uplink

GSM, GPRS, EDGE: 850 MHz, 900

MHz, 1800 MHz, 1900 MHz

UMTS, WCDMA, HSDPA, HSUPA: 850

MHz, 900 MHz, 1900 MHz, 2100 MHz

FCC, CE, FCC, IC, NCC, PTCRB, Bell,

AT&T

Approvals

Security

cULus (UL508)

EMC

FCC Part 15 Class A, EN 55022 Class A

EN61000-4-2 (ESD)

EN61000-4-3 (RS),

EN61000-4-4 (EFT)

EN61000-4-5 (Surge)

EN61000-4-6 (CS)

Shock

DIN EN 60068-2-29

Vibration

DIN EN 60068-2-6

Warranty

Period of time

3 years

Order data

Model name / Order number

LAN/WAN Router

IE-SR-2GT-LAN / 1345270000

LAN / WAN Router with integrated modem

UMTS/3G

IE-SR-2GT-UMTS/3G / 1345250000

6. Hardware related functional descriptions

Description of LED status indicators

LED

Signal

Meaning

PWR

off

The device is not powered

Flashing green

Device is turned on, the boot process is running

green

Device is turned on and ready to run

Status

off

The device is not powered

red

Error after boot process or recovering an image

Cut

off

CUT Input is not powered

red

A Cut event is triggered. LED lights up and the WAN

port is disabled

Alarm

off

No Alarm

red

An Alarm event is triggered

VPN active

off

No activated VPN tunnel.

green

Active VPN tunnel (triggered by external VPN key)

Only model

IE-SR-2GT-

UMTS/3G

3G (UMTS)

off

No active GSM / 3G / UMTS connection

Flashing yellow

Searching wireless network

yellow

Connected to a network provider but no active data

connection (Offline)

Flashing green

Connected to a network provider. Router activates the

connection on data flow (Standby)

UMTS/

Description of device interfaces at top and front side

Only model IE-SR-2GT-UMTS/3G: Connector for UMTS/3G antenna at top side

Connector type: SMA female

USB 2.0 connector

4-pin connector („Cut WAN port“ and „Signalize Alarm“)

► 24 VDC input for Cut signal (Disabling WAN interface) and

► 24 VDC output for signaling an alarm event

Note: Corresponding socket connector is included

4-pin connector ( „VPN initiate“ and „VPN active“)

► 24 VDC input for initiating a VPN tunnel (Predefined OpenVPN tunnel)

► 24 VDC output for signaling an active VPN tunnel

Note: Corresponding socket connector is included

RJ45-Connector WAN (10/100/1000BaseTX)

RJ45-Connector LAN (10/100/1000BaseTX)

3-pin connector for 24V DC power supply

Note: Corresponding socket connector is included

Description of device

interfaces at rear side

SCM slot / socket

SIM memory card reader for

external backup and restore

of the Router configuration

3G slot / socket

Slot for mobile SIM card (only

3G/UMTS model)

UMTS/

Connector for

UMTS / 3G

antenna of type

SMA female

Any external

antenna can be

used which is

compliant to

following parame-

ters:

Diversity Support:

900/1900/2100

MHz

Antenna Connec-

tor:50 Ohm

compatible

Pin assignment of power supply connector

Note: Allowed input voltage range from 7 to 36 VDC (24 VDC typical)

Pin assignment of RJ45 Ethernet ports (LAN and WAN)

Pin number

SIGNAL NAME (MDI)

10/100Base T(x) 1000Base T

TX + BI_DA+

TX - BI_DA-

RX + BI_DB+

NC BI_DC+

NC BI_DC-

RX - BI_DB-

NC BI_DD+-

NC BI_DD-

Pin assignment of 4-pin connector for „VPN initiate“ and „VPN active“

Pin number

SIGNAL NAME

24V DC (VCC)

Initiate VPN (24 V In)

VPN active (24 V Out)

GND

Pin assignment of 4-pin connector for „Cut WAN port“ and „Signalize Alarm“

Pin number

SIGNAL NAME

24V DC (VCC)

Cut (Disabling WAN-Port, 24 V

In)

Signalize Alarm (24 V Out)

GND

Pin number

SIGNAL NAME

24V DC

GND

Pin assignment of USB 2.0 connector

The USB interface is intended for connecting peripheral devices (USB 2.0). The connector is without function

in the current firmware version, but is optional for future planned applications.

Pin number

SIGNAL NAME

VDC

D -

D+

GND

Pin assignment of Smartcard Reader (ISO 7816 Standard)

The integrated SIM card reader is intended for saving and restoring the configuration data.

7. Initial start-up / Getting Started

Configuration of the Router by using an Internet browser

Note

The configuration of the device can be done either via LAN or WAN RJ45 ports.

Connect the unit to a 24V DC (3-pin plug) power source. The corresponding plug is included.

During the initial boot phase, the PWR LED is flashing. The Router is ready when the PWR LED is lit

constantly (after about 30 seconds).

Connect the Router to the Ethernet interface of a configuration PC using a RJ45 network cable.

It is possible to use a standard Ethernet patch cable or a crossed network cable. By default both Ethernet

ports are configured with autonegotiation.

Pin number

SIGNAL NAME

VCC 5 Volt

RESET

CLOCK

n/c

GND

n/c

I/O

n/c

The configuration and control of the Router is to done via the integrated Web server. Any Internet browser

(Microsoft Internet Explorer or Mozilla Firefox) can be used.

When delivered, the Web interface of the Router can be achieved from both LAN and WAN port.

To access the Web interface of the Router the IP address of the connected PC has to be in the same logical

network (IP address range) as the Router.

The default IP addresses and net masks of the Router are:

LAN port : 192.168.1.110 / 255.255.255.0

WAN port : 192.168.2.110 / 255.255.255.0

Starting the Web interface

Important note

The Router’s Web server partly is using Java script for parameter settings (e.g. if you

want to apply or deleting a configured Open VPN session).

Please ensure that the Web browser your a using is allowed to run Java script.

For Router configuration you do NOT need to install Java runtime software (for

executable Java applets) because only Java script will be used. Standard Web

browsers by default are able to run Java script code.

If some “Apply” buttons are not working (seems to be without function) and if you are

using Internet Explorer 10 please verify that you are using Bowser Mode IE10 to

ensure that Java script is running properly. To validate the browser mode press key

F12 and activate –if not set –mode Internet Explorer 10 as shown in the screenshot

below.

Start your Web browser and enter the IP address of the connected Router port into the browser’s address

line.

Now the login prompt of the Router should appear for input „User

name“ and „Password“.

Default values (factory settings) for Login:

User name : admin

Password : Detmold

Confirm your input by pressing the OK button.

Note

If the login prompt does not appear, please check the network LED's, if the devices are

connected to the network correctly. If problems still persist, please check the proxy and

firewall settings of the local PC

Now the Router homepage is displayed. This page corresponds to the menu item "Diagnostic System 

Status." On this page the most important configuration and status informations are summarized.

Note: Some fields are linked with a hyperlink to jump directly into the corresponding menu item.

Screenshot of

the Login page

8. Reset to factory default settings by external push button

By pressing the push button "Factory Default" the security Router can be reset at any time and regardless of

the configuration to the default settings (factory settings).

How to set the factory settings:

1. Power off the Router

2. Press the button „Factory Default“ and keep it hold down

3. Power on the Router and keeping button „Factory Default“ pressed while Router is booting

4. Release button „Factory Default“ when Power LED starts flashing fast (around 10 seconds after power on)

5. Wait until Power LED is glowing constantly green

Now the Router is ready to run with factory default settings.

Default factory settings of the Router:

Language: Englisch user interface

Operation mode : IP Router

IP address LAN port: 192.168.1.110 (static value)

Subnet mask: 255.255.255.0

NAT (Masquerading) on LAN port: Not activated

IP address WAN port: 192.168.2.110 (static value)

Subnet mask: 255.255.255.0

NAT (Masquerading) on WAN port: Not activated

Default gateway: No entry

DNS: DNS relay not activated

Firewall (Packet filter): By default, data traffic in both directions between LAN and WAN is

allowed on both level Layer 2 and Layer 3. For that the packet filter

contains two default rules, called "Allow_L2" and "Allow_L3" (allow traffic

at Layer 2 and 3) which allows as "white lists" all network traffic.

IP routing No static routes

Dynamic routing (OSPF, RIP) disabled

SNMP / DHCP / DNS Disabled

VPN: Disabled

Data prioritization Disabled

Only model IE-SR-2GT-UMTS/3G

3G Modem Disabled

9. Using the Weidmüller Router-Search-Utility

The software tool Weidmüller Router- Search-Utility can be used to find Weidmüller Routers and detect

theirs IP addresses within a switched network. This software is very helpful if you don’t know the current IP

address of a Router. This can e.g. happen in cases that you have forgotten the current IP configuration or

you have lost the Router access in case of configuring an unintended IP address. The main features of the

software are

Detecting a Router and displaying parameters like Device name, MAC address and IP address with

Subnet mask

Change the IP address of a detected Router

Open the web interface of a detected Router

You may download the Weidmüller Router-Search-Utility from the Weidmüller web site using the following

path:

1. Open www.weidmueller.com/IE

2. Select section “Industrial Ethernet“ „Software”

3. Select category “Additional Software (Configuration utilities, Drivers and MIB-files)“

4. Select category “Industrial Security Router (IE-SR-2GT-LAN, …3G/UMTS)“

5. Download “ Weidmueller_Router_Search_Utility.zip”

Alternatively you can download this software from this web page:

1. Open www.weidmueller.com

2. Select Downloads

3. Select Software

4. Select Industrial Ethernet

5. Download from section Industrial Security Router (Firmware and Software for IE-SR-2GT-LAN/3G/UMTS)

10. Basic description of the configuration interface (menu items)

The menu structure of the web Interface is divided into 4 main sections:

Section Diagnostics

►Displays system status data

►Display of logging information

►Displays current interface parameters (LAN/WAN/3G)

►Feature for testing the data communication between the Router and other

Ethernet devices (Ping test)

Section Configuration

►Setting of operation mode (eg „IP Router“) and basic network parameters (IP addresses,

Default gateway)

►Setting of firewall rules (Packet filter and an additional auto learning feature called

„SecureNow“ to assist the creation of packet filtering rules)

►Configuration of general system data (name, location, contact person, date / time,

language interface, etc.)

►Certificate Management for VPN connections

►User administration (assignment of rights)

►IP-Routing (static, dynamic) and IP address management (Masquerading, 1:1 NAT,

Portforwarding)

►Configuration of VPN connections (OpenVPN, IPsec)

►Configuration of general network services (e.g. DHCP, DBS, SNMP)

►Prioritization of network traffic (Layer-2 and Layer-3 level)

Section System

►Backup and restore of device configuration, Update firmware, Reboot)

Section Informations

►Display of technical data and hardware information (eg serial number and MAC address)

11. Explanation of the menu items of web interface in

chronological order

Figure 1: Diagnostics Systemstatus

Startup screen of the web interface after login. Displays current configuration and status data.

Figure 2: Diagnostics Eventlog Tab State

Display events and error messages that have occurred.

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