Case Communications 6904 User Manual

Case Communications

6904 4G / LTE Dual SIM

Router Manual

6904 Manual Revision

Rev 1.20

Contents 1 Rev 1.19B

6904 3G/4G LTE Router Manual

Rev

Sect

Changes

1.19B

Index

Corrected index errors 8.5.2 which said ‘below’

3-4

Manual showing old user name ‘admin01’ & “password” - corrected

7-9

Wrong information password not subnetwork mask - corrected

8-5

Typo in 8.5.1 corrected

8-15

Typo in table section 7 - corrected

8-19

Typo in table section 11 – was ‘on’ should be ‘off’ corrected

1.20

8.52

Missing from contents now put back.

Contents 2 Rev 1.19B

6904 3G/4G LTE Router Manual

Contents

1.0 Introduction 1-1

2.0 Applications 2-1

3.0 Installation 3-1

4.0 Operating Modes 4-1

5.0 Powering Options 5-1

6.0 Status 6-1

6.1 Overview 6-1

6.2 System Information 6-2

6.3 Network Information 6-3

6.3.1.1 Mobile 6-3

6.3.1.2 WAN 6-4

6.3.1.3 LAN 6-5

6.3.1.4 Wireless 6-6

6.3.1.5 Associated Stations 6- 8

6.3.1.6 Open VPN Client 6-9

6.3.1.7 Open VPN Server 6-9

6.3.1.8 Client Information 6-10

6.3.1.9 VRRP 6-10

6.3.1.10 Topology 6-11

6.3.1.11 Access 6-11

6.3.1.11.1 Last Connection 6-12

6.4 Device Information 6-13

6.5 Services 6-14

6.6 Routes 6-14

6.6.1 ARP 6-14

6.6.2 Active IP-Routes 6-14

6.6.3 Active IPv6-Routes 6-15

6.7 Real-Time Graphs 6-16

6.7.1 Mobile Signal Strength 6-16

6.7.2 Real-Time Load 6-17

6.7.3 Traffic 6-18

6.7.4 Realtime Wireless 6-19

6.7.5 Realtime Connections 6-20

6.8 Mobile Traffic 6-21

6.9 Speed Test 6-21

6.10 Events Log 6-22

6.10.1 All Events 6-22

6.10.2 System Events 6-22

6.10.3 Network Events 6-23

6.10.4 Events Reporting 6-23

6.10.5 Reporting Configuration 6-24

Contents 3 Rev 1.19B

6904 3G/4G LTE Router Manual

7.0 Network 7-1

7.1 Mobile 7-1

7.1.1 General 7-1

7.1.2 SIM Management 7-3

7.1.3 Network Operators 7-4

7.1.4 Mobile Data Limit 7-4

7.1.5 SIM Idle protection 7-5

7.1.5.1 Settings 7-5

7.1.5.2 Test 7-6

7.2 WAN 7-7

7.2.1 Operating Mode 7-7

7.2.2 Common configuration 7-7

7.2.2.1 General Set Up 7-8

7.2.2.2.5 Backup WAN configuration 7-10

7.2.2.3 How do I set up a backup Link? 7-13

7.3 LAN 7-14

7.3.1 Configuration 7-14

7.3.2 DHCP Server 7-15

7.4 VLAN 7-17

7.4.1 VLAN Networks 7-17

7.4.2 LAN Networks 7-18

7.5 Wireless 7-19

7.5.1.1 Device 7-19

7.5.1.2 Interface 7-20

7.4.1.3 Client 7-21

7.6 Firewall 7-22

7.6.1 General Settings 7-22

7.6.2 DMZ 7-23

7.6.3 Port Forwarding 7-23

7.6.4 Traffic Rules 7-25

7.6.4.1 Open Ports on the router 7-27

7.6.4.2 New Forward Rule 7-28

7.6.4.3 Source NAT 7-28

7.6.5 Custom Rules 7-30

7.6.6 DDOS Prevention 7-31

7.6.6.1 SYN Flooding Protection 7-31

7.6.6.2 Remote ICMP Requests 7-31

7.6.6.3 SSH Attack Prevention 7-32

7.6.6.4 HTTP Attack Prevention 7-32

7.6.6.5 HTTPS Attack Prevention 7-33

7.7 Static Routes 7-34

Contents 4 Rev 1.19B

6904 3G/4G LTE Router Manual

8.0 Services 8-1

8.1 VRRP 8- 1

8.1.1 VRRP LAN Configuration settings 8-1

8.1.2 Check Internet connection 8-8.1.2

8.2 TR-069 8-2

8.2.1 TR-069 Parameters Configuration 8-2

8.3 Web Filtering 8-3

8.3.1 Site Blocking 8-3

8.3.2 Proxy based URL Content Blocker 8-3

8.4 NTP 8-4

8.5 VPN 8- 5

8.5.1 Open VPN 8-5

8.5.2 IP Sec 8-8

8.5.3 GRE Tunnel 8-10

8.5.4 PPTP 8-12

8.5.5 L2TP 8-13

8.6 Dynamic DNS 8-14

8.7 SNMP 8-16

8.7.1 SNMP Settings 8-16

8.7.2 Trap Settings 8-17

8.8 SMS Utilities 8-18

8.8.1 SMS Utilities 8-18

8.8.2 Calling Utilities 8-21

8.8.3 User Groups 8-21

8.8.4 SMS Management 8-22

8.8.1.1 Read SMS 8-22

8.8.1.2 Send SMS 8-22

8.8.1.3 Storage 8-22

8.8.5 Remote Configuration 8-23

8.8.5.1 Receive Configuration 8-23

8.8.5.2 Send Configuration 8-24

8.8.6 Statistics 8-26

8.9 SMS Gateway 8-27

8.9.1 Post / Get Configuration 8-27

8.9.1.1 SMS by HTTP POST / GET 8-27

8.9.1.2 Sytnax of HTTP / POST / GET String 8-28

8.9.1.3 Parameters of HTTP POST / GET string 8-28

8.9.1.4 Possible responses after command execution 8- 28

8.9.1.5 HTTP POST / GET String examples 8-28

8.9.2 Email to SMS 8-29

8.9.3 Scheduled Messages 8-30

8.9.4 Auto Reply Configuration 8-31

8.9.5 SMS Forward 8-31

Contents 5 Rev 1.19B

6904 3G/4G LTE Router Manual

8.5.6 SMPP 8-34

8.10 CLI 8-35

8.11 HOT SPOT 8-35

8.11.1 General Settings 8-36

8.11.2 Internet Access Restriction Settings 8- 37

8.11.3 Logging 8-37

8.11.4 Landing Page 8-38

8.11.5 Radius server configuration 8-39

8.11.6 Statistics 8-40

8.12 Auto Reboot 8-40

8.12.1 Ping Reboot 8-40

8.12.2 Periodic Reboot 8- 41

8.13 QOS 8-42

9 System 9-1

9.1 Configuration Wizard 8-1

9.2 Profiles 8-3

9.3 Administration 8-3

9.3.1 General 8-3

9.3.2 Troubleshooting 8-4

9.3.3 Backup 8-5

9.3.4 Diagnostics 9-8

9.3.5 MAC Clone 9-8

9.3.6 Overview 9-9

9.3.7 Monitoring 9-10

9.4 User Scripts 9-10

9.5 Safe Mode 9-11

9.6 Firmware 9-11

9.6.1 Firmware 9-11

9.6.2 FOTA 9-12

9.7 Restore Point 9-13

9.7.1 Create Restore Pont 9-13

9.7.2 Restore Point Load 9-13

9.8 Reboot 9-13

10 System Recovery 10-1

10.1 Reset Button 10-1

10.2 Safemode 10-1

10.3 Bootloaders Web GUI 10-1

11 Glossary 11-1

Safety 1 Rev 1.19B

6904 3G/4G LTE Router Manual

SAFETY INFORMATION

Legal notice

Copyright © 2014 Case Communications Ltd. All rights reserved. Reproduction, transfer,
distribution or storage of part or all of the contents in this document in any form without the
prior written permission of Case Communications is prohibited. The manufacturer reserves
the right to modify the product and manual for the purpose of technical improvement without
prior notice.

Other product and company names mentioned herein may be trademarks or trade
names of their respective owners.

Before using the device we strongly recommend reading this user manual first.

Do not rip open the device. Do not touch the device if the device block is broken

All wireless devices for data transferring may be susceptible to interference, which
could affect performance.

The device is not water-resistant. Keep it dry.

Device is powered by low voltage +9V DC power adaptor.

Page 1-1 Rev1.19B

6904 3G/4G LTE Router Manual

1 Introduction

Thank you for purchasing a CASE6904 4G / LTE router!
The CASE6904 is part of the CASE range compact mobile routers with high speed wireless and
Ethernet connections.
This router is ideal for people who‘d like to share their internet on the go, as it is not restricted
by a cumbersome cable connection. Unrestricted, but not forgotten: the router still supports
internet distribution via a broadband cable, simply plug it in to the wan port, set the router to a
correct mode and you are ready to browse.

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6904 3G/4G LTE Router Manual

2 Specifications

Ethernet

 IEEE 802.3, IEEE 802.3u standards
 3 x LAN 10/100Mbps Ethernet ports
 1 x WAN 10/100Mbps Ethernet port
 Supports Auto MDI/MDIX

Wi-Fi

 IEEE 802.11b/g/n Wi-Fi standards
 2x2 MIMO
 AP and STA modes
 64/128-bit WEP, WPA, WPA2, WPA&WPA2 encryption methods
 2.401 – 2.495GHz Wi-Fi frequency range
 20dBm max Wi-Fi TX power
 SSID stealth mode and access control based on MAC address

Hardware

 High performance 560 MHz CPU with 128 Mbytes of DDR2 memory
 5.5/2.5mm DC power socket
 Reset/restore to default button
 2 x SMA for LTE , 2 x RP-SMA for Wi-Fi antenna connectors
 4 x Ethernet LEDs, 1 x Power LED
 1 x bi-Colour connection status LED, 5 x connection strength LEDs

Electrical, Mechanical & Environmental



Dimensions (H x W x D)

80mm x 106mm x 46mm



Weight

250g



Power supply

100 – 240 VAC -> 9 VDC wall adapter



Input voltage range

9 – 30 VDC



Power consumption

< 7 W



Operating temperature

-40° to 75° C



Storage temperature

-45° to 80° C



Operating humidity

10% to 90% Non-condensing



Storage humidity

5% to 95% Non-condensing

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6904 3G/4G LTE Router Manual

2.1. Applications

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6904 3G/4G LTE Router Manual

3.0. Installation

After you unpack the box, follow the steps, documented below, in order to properly connect the
device. For better Wi-Fi performance, put the device in clearly visible spot, as obstacles such as
walls and door hinder the signal.

1. First assemble your router by attaching the necessary antennas and inserting the SIM

card.

2. To power up your router, please use the power adapter included in the box.

(IMPORTANT: Using a different power adapter can damage and void the warranty for
this product.).

3. If you have a wired broadband connection you will also have to connect it to the WAN

port of the router

3.1. Front and Back Panel of the Case 6904 Router

1,2,3

LAN Ethernet ports

1

LTE auxiliary antenna connector

4

WAN Ethernet port

2

LTE main antenna connector

5,6,7

LAN LEDs

3,5

Wi-Fi antenna connectors

8

WAN LED

4

Reset button

9

Power socket

10

Power LED

11

Connection status LED

12

Signal strength indication LEDs

3.2. Hardware installation

1. Remove back panel and insert SIM card which was given by your ISP (Internet

Service Provider). Correct SIM card orientation is shown in the picture.

SIM 1 (primary)

SIM 2 (secondary)

2. Attach LTE main and Wi-Fi antennas.

3. Connect the power adapter to the socket on the front panel of the device. Then plug

the other end of the power adapter into a wall outlet or power strip.

4. Connect to the device wirelessly using the SSID: Case6904 ) or use Ethernet cable and

plug it into any LAN Ethernet port.

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6904 3G/4G LTE Router Manual

3.3. Logging in

After you’re complete with the setting up as described in the section above, you are ready to

start logging into your router and start configuring it. This example shows how to connect on
Windows 7. On windows Vista: click Start -> Control Panel -> Network and Sharing Centre ->
Manage network Connections -> (Go to step 4). On Windows XP: Click Start -> Settings ->
Network Connections -> (see step 4). You wont’s see “Internet protocol version 4(TCP/IPv4)”,
instead you’ll have to select “TCP/IP Settings” and click options -> (Go to step 6)

We first must set up our network card so that it could properly communicate with the router.

1. Press the start button

2. Type in “network connections”, wait for the

results to pop up.

3.Click “View Network Connections

4. The right click on your wireless device that you use to

connect to other access points (It is the one with the

name “Wireless Network Connections” and has signal

bars on its icon)

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6904 3G/4G LTE Router Manual

7. If you choose to configure manually here’s what you do:

First select an IP address.
The routers factory settings allow you to enter an IP address in the form of 192.168.1.XXX ,
where XXX is a number in the range of 2-254 (192.168.1.2 , 192.168.1.254 , 192.168.1.155 and

so on… are valid; 192.168.1.0 , 192.168.1.1 , 192.168.1.255 , 192.168.1.699 and so on… are

not).

Next enter the subnet mask: this has to be “255.255.255.0”. Then we enter the default gateway:

this has to be “192.168.1.1”. Finally we enter primary and secondary DNS server IPs. One will

suffice, though it is good to have a secondary one as well as it will act as a backup if the first
should fail. The DNS can be your routers IP (192.168.1.1), but it can also be some external
DNS server (like the one Google provides: 8.8.8.8).

5. Select Internet Protocol Version 4
(TCP/IPv4) and then click Properties.

6. By default the router is going to have DHCP

enabled, which means that if you select “Obtain
an IP address automatically” and “Obtain DNS
server address automatically”, the router should

lease you an IP and you should be ready to
login.

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6904 3G/4G LTE Router Manual

Right click on the Wireless network icon and select Connect / Disconnect. A list should
pop up with all available wireless networks. Select “Case6904” and click connect. Then
we launch our favourite browser and enter the routers IP into the address field:

Press enter. If there are no problems you should be greeted with a login screen such as this:

Enter the default username, which is “root” into the user name field and enter ‘case’ into the
Password field and then either click Login with your mouse or press the Enter key. You have
now successfully logged into the CASE6904!

From here on out you can configure most parts of your 6904 router.

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6904 3G/4G LTE Router Manual

4. Operating Modes

The CASE6904 series router supports various operation modes. It can be connected to the
internet (WAN) via mobile, standard Ethernet cable or via a wireless network. When
connecting to the internet, you may also backup your main WAN connection with one or two
backup connections. Any interface can act like backup if configured so. At first router uses its
main WAN connection, if it is lost then router tries to connect via backup with higher priority
and if that fails too, router tries the second backup option.

WAN

Main WAN

Backup WAN

LAN

Mobile

√

√

x

Ethernet

√

√

√

Wi-Fi

√

√

√

In later sections it will be explained, in detail, how to configure your router to work in a
desired mode.

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6904 3G/4G LTE Router Manual

5. Powering Options

The CASE6xx router can be powered from power socket or over Ethernet port. Depending on
your network architecture you can use LAN 1 port to power the device.

The CASE 6904 can be powered from power socket and over Ethernet simultaneously. Power
socket has higher priority meaning that the device will draw power from power socket as long
as it is available.
When the CASE 6904 is switching from one power source to the other it loses power for a
fraction of the second and may reboot. The device will function correctly after the reboot.

Though the device can be powered over Ethernet port it is not compliant with IEEE 802.3af­2003 standard. Powering CASE6309 from IEEE 802.3af-2003 power supply will damage the

device as it is not rated for input PoE Standard voltages.

5.1 Powering the device from higher voltage

If you decide not to use our standard 9 VDC wall adapters and want to power the device from
higher voltage (15 – 30 VDC) please make sure that you choose power supply of high quality.
Some power supplies can produce voltage peaks significantly higher than the declared output
voltage, especially during connecting and disconnecting them.
While the device is designed to accept input voltage of up to 30 VDC peaks from high voltage
power supplies can harm the device. If you want to use high voltage power supplies it is
recommended to also use additional safety equipment to suppress voltage peaks from power
supply. One of the options is to use “Case Communications” over-voltage protection device
conforming ISO 7637-2

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6904 3G/4G LTE Router Manual

6. Status

The status section contains various information, like current IP addresses of various network
interfaces; the state of the routers memory; firmware version; DHCP leases; associated wireless
stations; graphs indicating load, traffic, etc.; and much more.

6.1. Overview

Overview sections contains summary information on the router

Page 6-2 Rev 1.19B

6904 3G/4G LTE Router Manual

6.2. System Information

The System Information tab contains data that pertains to the routers operating system.

System explanation:

Field Name

Sample value

Explanation

1.

Router Name

Case Communications

Name of the router (hostname of the routers system). Can
be changed in System -> Administration.

2.

Host name

Case Communications

Indicates how router will be seen by other devices on the
network. Can be changed in System -> Administration.

3.

Router Model

Case Communications
CASE6xx

Routers model.

4.

Firmware
Version

CASE6xx_T_00.00.372

Shows the version of the firmware that is currently loaded
in the router. Newer versions might become available as
new features are added. Use this field to decide whether
you need a firmware upgrade or not.

5.

Kernel
Version

3.10.36

The version of the Linux kernel that is currently running on
the router.

6.

Local Time

2014-11-03, 14:33:14

Shows the current system time. Might differ from your
computer, because the router synchronizes it's time with an
NTP server. Format
[year-month-day, hours:minutes:seconds].

7.

Uptime

0h 40m 46s (since
2014-11-03, 13:53:13)

Indicates how long it has been since the router booted up.

Reboots will reset this timer to 0.Format [day’s hours

minutes seconds (since year month-day, hours: minutes:
seconds)].

8.

Load
Average

1 min: 11%; 5 mins:
18%; 15 mins: 17%

Indicates how busy the router is. Let's examine some
sample output: "1 min: 11%, 5 mins: 18%, 15 mins: 17%".
The first number mean past minute and second number
11% means that in the past minute there have been, on
average, 11% processes running or waiting for a resource.

9.

Temperature

Device’s temperature

Page 6-3 Rev 1.19B

6904 3G/4G LTE Router Manual

Memory explanation:

Field Name

Sample Value

Explanation

1.

Free

94532 kB / 126452 kB
(74%)

The amount of memory that is completely free.
Should this rapidly decrease or get close to 0, it
would indicate that the router is running out of
memory, which could cause crashes and
unexpected reboots.

2.

Cached

10828 kB / 126452 kB
(8%)

The size of the area of memory that is dedicated to
storing frequently accessed data.

3.

Buffered

4308 kB / 126452 kB
(3%)

The size of the area in which data is temporarily
stored before moving it to another location.

6.3. Network Information

6.3.1.1. Mobile

Displays information about the modems connections

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6904 3G/4G LTE Router Manual

Field Name

Sample Value

Explanation

1.

Data
connection
state

Connected

Mobile data connection status

2.

IMEI

860461024164561

Modem's IMEI (International Mobile Equipment
Identity) number

3.

IMSI

246020100070220

IMSI (International Mobile Subscriber Identity)
is used to identify the user in a cellular network

4.

SIM card state

Ready

Indicates the SIM card's state, e.g. PIN required,
Not inserted, etc.

5.

Signal strength

-65 dBm

Received Signal Strength Indicator (RSSI).
Signal's strength measured in dBm

6.

Cell ID

FD90B

ID of operator cell that device is currently
connected to

7.

RSRP

-88dBm

Indicates the Reference Signal Received Power

8.

RSRQ

-7dBm

Indicates the Reference Signal Received Quality

9.

SINR

-21.4dBm

Indicates the Signal to Interference Noise Ratio

10.

Operator state

LT BITE GSM

Operator's name of the connected GSM network

11.

Operator

Registered (home)

GSM network's status

12.

Connection
type

4G (LTE)

Indicates the GSM network's access technology

13.

Bytes received

3.3 Kb (3345 bytes)

How many bytes were received via mobile data
connection

14.

Bytes sent

3.4 kb (3487 bytes)

How many bytes were sent via mobile data
connection

6.3.1.2. WAN

Displays information about the WAN Connection

Page 6-5 Rev 1.19B

6904 3G/4G LTE Router Manual

Field Name

Sample Value

Explanation

1.

Interface

Wired

Specifies through what medium the router is connecting to
the internet. This can either be Wired, Mobile or Wi-Fi.

2.

Type

Static

Specifies the type of connection. This can either be static
or DHCP.

3.

IP address

192.168.99.69

The IP address that the routers uses to connect the internet.

4.

WAN MAC

00:1E:42:00:00:01

MAC (Media Access Control) address used for
communication in a Ethernet WAN (Wide Area Network)

5.

Netmask*

255.255.255.0

Specifies a mask used to define how large the WAN
network is

6.

Gateway*

192.168.99.254

Indicates the default gateway, an address where traffic
destined for the internet is routed to.

7.

DNS*

8.8.8.8

Domain name server(s).

8.

Connected*

1h 45m 27s

How long the connection has been successfully
maintained.

*-These fields show up on other connection modes. **-Exclusive to other Modes with DHCP.

6.3.1.3. LAN

The option displays information on the routers LAN Connection

Page 6-6 Rev 1.19B

6904 3G/4G LTE Router Manual

Field Name

Sample Value

Explanation

1.

Name

Lan

Lan instance name

2.

IP address

192.168.99.218

Address that the router uses on the LAN network.

3.

Netmask

255.255.255.0

A mask used to define how large the LAN network is

4.

Ethernet LAN
MAC address

00:1E:42:00:00:00

MAC (Media Access Control) address used for
communication in a Ethernet LAN (Local Area
Network)

5.

Connected for

1h 53m 56s

How long LAN has been successfully maintained.

DHCP Leases

If you have enabled a DHCP server this field will show how many devices have received an IP
address and what those IP addresses are.

Field Name

Sample Value

Explanation

1.

Hostname

Freeform name

DHCP client's hostname

2.

IP address

192.168.99.120

Each lease declaration includes a single IP address
that has been leased to the client

3.

LAN name

LAN

Name assigned to the Local Area Network

4.

MAC address

D4:85:64:65:2B:D4

The MAC (Media Access Control) address of the
network interface on which the lease will be used.
MAC is specified as a series of hexadecimal octets
separated by colons

5.

Lease time
remaining

10h 11m 13s

Remaining lease time for addresses handed out to
clients

6.3.1.4. Wireless

Wireless can work in two modes, Access Point (AP) or Station (STA). AP is when the wireless
radio is used to create an Access Point that other devices can connect to. STA is when the radio
is used to connect to an Access Point via WAN.

6.3.1.4.1 Station

Displays information about wireless connection (Station mode).

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6904 3G/4G LTE Router Manual

Client mode information

Field Name

Sample Value

Explanation

1.

Channel

1 (2.41 GHz)

The channel that the AP, to which the routers is
connected to, uses. Your wireless radio is forced to
work in this channel in order to maintain the
connection.

2.

Country

00

Country code.

3.

SSID

Case6904

The SSID that the AP, to which the routers is connected
to, uses.

4.

Mode

Station (STA)

Connection mode – Client indicates that the router is a
client to some local AP.

5.

Encryption

WPA2 PSK
(CCMP)

The AP, to which the router is connected to, dictates the
type of encryption.

6.

Wireless
MAC

00:1E:42:10:80:22

The MAC address of the access points radio.

7.

Signal
Quality

61%

The quality between routers radio and some other
device that is

connecting to the router. Will show 0% if no devices
are trying to connect or are currently maintaining a
connection.

8.

Bit rate

43.3 MBit/s

The physical maximum possible throughput that the
routers radio can handle. Keep in mind that this value
is cumulative - The bitrate will be shared between the
router and other possible devices that connect to the
local AP.

6.3.1.4.2 Access Point

Displays information about wireless connection (Access Point mode).

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6904 3G/4G LTE Router Manual

Wireless AP information

Field Name

Sample Value

Explanation

1.

Channel

11 (2.46 GHz)

The channel which is used to broadcast the SSID and to
establish new connections to devices.

2.

Country code

00(World)

Country code.

3.

SSID

Case
Communications_Rout
er_Test

The SSID that is being broadcast. Other devices will
see this and will be able to use to connect to your
wireless network.

4.

Mode

Access Point (AP)

Connection mode – Master indicates that you router is
an access point.

5.

Encryption

No Encryption

The type of encryption that the router will use to
authenticate, establish and maintain a connection.

6.

Wireless MAC

00:1E:42:00:00:03

MAC address of your wireless radio.

7.

Signal Quality

80%

The quality between routers radio and some other
device that is connecting to the router. Will show 0% if
no devices are trying to connect or are currently
maintaining a connection.

8.

Bit rate

54.0 MBit/s

The bitrate will be shared between all devices that
connect to the routers wireless network.

Additional note: MBit/s indicates the bits not bytes. To get the throughput in bytes divide the
bit value by 8, for e.g. 54MBits/s would be 6.75MB/s (Mega Bytes per second).

6.3.1.5. Associated Stations

Outputs a list of all devices and their MAC addresses that are maintain a connection with your
router right now.
This can either be the information of the Access Point that the router is connecting to in STA
mode or a list of all devices that are connecting to the router in AP mode:

Field Name

Sample Value

Explanation

1.

MAC Address

FC:C2:DE:91:36:A6

Associated station's MAC (Media Access Control)
address

2.

Device Name

Android­9aed2b2077a54c74

DHCP client's hostname

3.

Signal

-54dBm

Received Signal Strength Indicator (RSSI).
Signal's strength measured in dBm

4.

RX Rate

24.0Mbit/s, MCS 0,
20MHz

The rate at which packets are received from
associated station

5.

TX Rate

54.0Mbit/s, MCS 0,
20MHz

The rate at which packets are sent to associated
station

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6.3.1.6. Open VPN Client

This menu options displays the Open VPN connection on the client’s side.

Field Name

Sample Value

Explanation

1.

Status

Enabled

OpenVPN status

2.

Type

Client

A type of OpenVPN instance that has been created

3.

IP

172.16.1.6

Remote virtual network's IP address

4.

Mask

255.255.255.255

Remote virtual network's subnet mask

5.

Server IP

172.16.1.0

Remote virtual server's IP address

6.

Time

0h 48m 43s

For how long the connection has been established

6.3.1.7. Open VPN Server

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6.3.1.8. Client Information

Field Name

Sample Value

Explanation

1

Status

Client 1

Open VPN Status

2

Type

192.168.99.91:50850

A type of Open VPN that has been created

3

IP

172.16.1.16

Remote virtual network IP Address

4

Mask

2015-05-15 08:07:15

Remote virtual network subnetwork mask

5

Time

20h 13m 9s

How long has connection been established

Field Name

Sample Value

Explanation

1

Common Name

Client 1

Clients connection

2

Real Address

192.168.99.91:50850

Clients virtual IP address and port number

3

Virtual Address

172.16.1.16

Virtual address which has been given to client

4

Connection since

2015-05-15 08:07:15

How long since connection established

6.3.1.9. VRRP

VRRP (Virtual Router Redundancy Protocol) for the LAN

Field Name

Sample Value

Explanation

1.

Status

Enabled

VRRP status

2.

Virtual IP

192.168.1.253

Virtual IP address(es) for LAN’s VRRP (Virtual Router

Redundancy Protocol ) cluster

3.

Priority

100

Router with highest priority value on the same VRRP
(Virtual Router Redundancy Protocol) cluster will act as a
master, range [1 - 255]

4.

Router**

Master

Since when connection has been established

**-Exclusive to other Modes running in Slave mode.

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6.3.1.10. Topology

Network scanner allowing you to quickly retrieve information about network devices.

6.3.1.11. Access

Displays information about local and remote active connections status.

Field Name

Sample Value

Explanation

1.

Type

SSH;HTTP;HTTPS

Type of connection protocol

2.

Status

Disabled/Enabled

Connection status

3.

Port

22; 80; 443

Connection port used

4.

Active
Connections

0(0.00B);1(9.26 KB);
6(558.12 KB)

Count of active connections and amount of data
transmitted in KB

**-Exclusive to other Modes with Slave

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6.3.1.11.1. Last Connection

Displays information about local and remote last 3 connections status

Field Name

Sample Value

Explanation

1.

Type

SSH;HTTP;HTTPS

Type of connection protocol

2.

Date

2015-05-11, 10:36:59

Date and time of connection

3.

IP

192.168.1.167

IP address from which the connection was made

4.

Authentications
Status

Failed; Succeeded

Status of authentication attempt

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6.4. Device Information

This page displays factory information that was written into the device during the
manufacturing process.

Field Name

Sample Value

Explanation

1

Serial Number

02345678

Serial number of the device

2

Product code

6904

Product code of the device

3

Batch number

0222

Batch number used during device’s

manufacturing process

4

Hardware revision

0321

Hardware revision of the device

5

IMEI

860461024164561

Identification number of the internal
modem

6

IMSI

246020100070220

Subscriber identification number of the
internal modems

7

Ethernet LAN MAC

3E:83:6F:84:E1:A4

MAC address of the Ethernet LAN Port

8

Ethernet WAN MAC

AE:F4:F3:5B:9D:CC

MAC address of the Ethernet WAN
Port

9

Wireless MAC

N / A

MAC Address of the Wi-Fi Interface

10

Model

ME909-521

Routers modem model

11

FW Version

11.235.07.00.00

Router modems firmware version

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6.5. Services

This page displays the status of the routers available services.

6.6. Routes

The page displays ARP table active IP routes of the device.

6.6.1 ARP

Shows the routers active ARP table. An ARP table contains recently cached MAC addresses of
every immediate device that was communicating with the router.

6.6.2 Active IP-Routes

Shows the routers routing table. The routing table indicates where a TCP/IP packet, with a
specific IP address, should be directed to.

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Field Name

Sample Value

Explanation

1.

Network

ppp

Interface to be used to transmit TCP/IP packets
through

2.

Target

192.168.99.0/24

Indicates where a TCP/IP packet, with a specific IP
address, should be directed

3.

IP Gateway

0.0.0.0

Indicates through which gateway a TCP/IP packet
should be directed

4.

Metric

0

Metric number indicating interface priority of usage

6.6.3 Active IPv6-Routes

Displays active IPv6 routes for data packet transmission

Field Name

Sample Value

Explanation

1.

Network

loopback

Network interface used

2.

Target

0:0:0:0:0:0:0:0/0

Indicates where a TCP/IP packet, with a specific
IP address, should be directed

3.

IPv6-Gateway

0:0:0:0:0:0:0:0/0

Indicates through which gateway a TCP/IP packet
should be directed

4.

Metric

FFFFFFFF

Metric number indicating interface priority of
usage

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6.7. Real-Time Graphs

Real-time graphs show how various statistical data changes over time.

6.7.1 Mobile Signal Strength

Displays mobile signal strength variation in time (measured in dBm)

Field Name

Sample Value

Explanation

1.

Connection type

3G (WCDMA)

Type of mobile connection used

2.

Signal

-72 dBm

Current signal strength value

3.

Average

-72.0 dBm

Average signal strength value

4.

Peak

-72 dBm

Peak signal strength value

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6.7.2 Real-Time Load

This tri-graph illustrates average CPU load values in real time. The graph consists out of three
Colour coded graphs, each one corresponding to the average CPU load over 1 (red), 5 (orange)
and 15 (yellow) most recent minutes.

Field Name

Sample Value

Explanation

1.

1/5/15 Minutes

Load

0.83

Time interval for load averaging,
Colour of the diagram

2.

Average

0.86

Average CPU load value over time interval
(1/5/15 Minute)

3.

Peak

1.50

Peak CPU load value of the time interval

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6.7.3 Traffic

This tri-graph illustrates average system load over the course of ~3 minutes; each new
measurement is taken every 3 seconds. The graph consists out of three Colour coded graphs,
each one corresponding to the average system load over 1 (red), 5 (orange) and 15 (yellow)
most recent minutes. Although not graphed, the page also displays peak loads over 1, 5 and 15
minutes.

Field Name

Explanation

1.

Bridge

Cumulative graph, which encompasses wired Ethernet LAN and
the wireless network.

2.

LAN

Graphs the total traffic that passes through both LAN network
interfaces.

3.

WAN (Wired)

Graphs the amount of traffic which passed through the current
active WAN connection.

4.

Mobile

Graphs the amount of traffic which passed through the mobile
network connection.

5.

Wi-Fi

Shows the amount of traffic that has been sent and received
through the wireless radio.

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6.7.4 Realtime Wireless

Displays the wireless radio signal, signal noise and theoretical maximum channel permeability.
Average and peak signal levels are displayed.

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6.7.5 Realtime Connections

Displays currently active network connections. With the information on network, protocol,
source and destination addresses, transfer speed.

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6.8. Mobile Traffic

Displays mobile connection data sent and received in KB of this day, week, month.

6.9. Speed Test

Speed test is a tool for measuring your internet connection upload and download speeds. You
can select servers for manual testing, or use auto test.

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6.10. Events Log

Event log displays such actions as: login, reboot, firmware flashing and reset.

6.10.1 All Events

Displays all router events, their type and time of occurrence.

6.10.2 System Events

Displays all system events, their type and time of occurrence. Events include authentication or
reboot requests, safemode, incoming and outgoing SMS and calls, configuration changes,
DHCP Events.

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6.10.3 Network Events

Displays information about recent network events like connection status change, lease status
change, network type or operator change.

6.10.4 Events Reporting

Allows to view, enable, disable or modify created rules for events reporting.

A
l
l
o
w
s

t
o

r
e
v

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6904 3G/4G LTE Router Manual

6.10.4.1 Events Reporting Configuration

This menu allows a network manager to review rules created and to modify them,so after an
event occurs, messages or e-mails are sent to a specific address (such as Case Communications
SNMP based Caseview NMC) or phone numbers with information about the event.

Field Name

Sample Value

Explanation

1.

Enable

Enable/Disable

Make a rule active/inactive

2.

Event type

Reboot

Select event type about which occurrence
information will be sent

3.

Event subtype

After unexpected shut down

Specify event subtype to activate the rule

4.

Action

Send SMS

Action to perform when an event occurs

5.

Custom
message

Enable/Disable

When action occurs, custom message will be
send

6.

Recipient‘s

phone number

[phone]

For whom you want to send a SMS

6.10.5 Reporting Configuration

Displays configured services for event reporting, allows to enable, disable, view and modify the
parameters.

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6.10.5.1 Events Log Report Configuration

Allows to change the configuration of periodic events reporting to email or ftp.

Field Name

Sample Value

Explanation

1.

Enable

Enable/Disable

Make a rule active/inactive

2.

Events log

System

Event type for which the rule is applied

3.

Transfer type

FTP

Event subtype for which the rule is applied: Email/ftp

4.

Compress file

Enable

Action to perform when an event occurs

5.

Host

192.168.123.123

FTP (File transfer Protocol) host name, e.g.

ftp.exemple.com, 192.168.123.123. Allowed

characters (a-z-A-Z0-9!@#$%^&*+- /=?_`{|}~. )

6.

User name

Username

User name for authentication on SMTP(Simple Mail
Transfer Protocol) or FTP (File Transfer Protocol)
server. Allowed characters (a-z-A-Z0-9!@#$%^&*+­/=?_`{|}~. )

7.

Password

password

Password for authentication on SMTP(Simple Mail
Transfer Protocol) or FTP (File Transfer Protocol) server
. Allowed characters (a-z-A-Z09!@#$%^&*+-/=?_`{|}~.
)

8.

Interval
between reports

Week

Send report every select time interval

9.

Weekday

Monday

Day of the week to get events log report

10.

Hour

12

Hour of the day to get events log report

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7.0. Network

7.1. Mobile

7.1.1 General

7.1.1.1 Mobile Configuration

Here you can configure mobile settings which are used when connecting to your local 3G/LTE
network.

Field Name

Sample Value

Explanation

1
Mobile
connection

PPP / NDIS

PPP Mode uses a dialling number to establish a data
connection. NDIS Mode (default) does not use dialling and
PPP protocol to establish a data connection. NDIS is usually
faster than PPP Mode

2

Mode

NAT
/Passthrough /
Use Bridge

NAT mode enables network address translation on router.
Bridge mode bridges LTE data connection with LAN. In this
mode the router does not have internet connection as ISP
provides IP directly to end device (PC, tablet or smartphone).
Using Bridge mode will disable most of the router capabilities
and you can access your router's settings only by using static
IP address on your end device. Passthrough mode is similar
with bridge mode except that in passthrough mode router do
have internet connection.

3

APN

“APN”

Access Point Name (APN) is a configurable network
identifier used by a mobile device when connecting to a GSM
carrier.

4

PIN Number

“1234” or any

number that
falls between
0000 and 9999

A personal identification number is a secret numeric
password shared between a user and a system that can be used
to authenticate the user to the system.

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5

Dialling
number

*99***1#

Dialling number is used to establish a mobile PPP (Point-to­Point-Protocol) connection.

6

Authentication

method

CHAP, PAP or
none

Authentication method, which your carrier uses to
authenticate new connections.

7.

Username

“username”

Your username that you would use to connect to your carriers
network. This field becomes available when you select an
authentication method (i.e. authentication method is not
“none”).
These fields are always enabled on the alternate model.

8.

Password

“password”

Your password that you would use to connect to your carriers
network. This field becomes available when you select an
authentication method (i.e. authentication method is not
“none”).
These fields are always enabled on the alternate model.

9.

Service mode

2G only, 2G
preferred,
3G only, 3G
preferred, 4G
(LTE) only, 4G
(LTE)
preferred or
automatic.

Your network preference. If your local mobile network
supports 2G, 3G and 4G (LTE) you can specify to which
network you wish to connect. E.g.: if you choose 2G, the
router will connect to a 2G network, so long as it is available,
otherwise it will connect to a network that provides better
connectivity. If you select auto, then the router will connect
to the network that provides better connectivity.

10.

Deny data
roaming

Enable /
Disable

If enabled this function prevents the device from establishing
mobile data connection while not in home network.

Warning: If an invalid PIN number was entered (i.e. the entered PIN does not match the one that was
used to protect the SIM card), your SIM card will get blocked. To avoid such mishaps it is highly
advised to use an unprotected SIM. If you happen to insert a protected SIM and the PIN number is
incorrect, your card won’t get blocked immediately, although after a couple of reboots OR
configuration saves.

7.1.1.2 Mobile Data on demand

7.1.1.3 Force LTE Network

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Field Name

Possible values

Explanation

1

Enable

Enable / disable

Force LTE Network function periodically disables
mobile data connection (for a few seconds) to allow
the router to switch to LTE network. Tjis could ne
because some operators do not support switching
from 3G to LTE networks while data is being
transferred.

2

Interval
(Sec)

180 - 3600

Interval in seconds the device will use periodically
disable mobile data connections.

7.1.2 SIM Management

Field name

Possible values

Explanation

1.

Primary SIM card

SIM 1 / SIM 2

SIM card that will be used in the system as a primary
SIM card

2.

Enable automatic
switching

Enable/Disable

Automatically switch between primary and secondary
SIM cards based on the various rules and criterions
defined below

3.

Check interval

20-3600

Check interval in seconds

4.

On weak signal

Enable/Disable

Perform a SIM card switch when a signal's strength
drops below a certain threshold

5.

On data limit

Enable/Disable

Perform a SIM card switch when mobile data limit for
your currrent SIM card is exceeded

6.

On sms limit

Enable/Disable

Perform a SIM card switch when sms limit for your
currrent SIM card is exceeded

7.

On roaming

Enable/Disable

Perform a SIM card switch when roaming is detected

8.

On data connection
fail

Enable/Disable

Perform a SIM card switch when data connection fails

9.

Switch back to
primary SIM card
after timeout

Enable/Disable

Switch back to primary SIM card after timeout has
been reached

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7.1.3 Network Operators

This function lets you Scan, Select and enter manual Network Operator to which router should
connect. Function will provide great utility when router is in Roaming conditions. Operator is
selected only for the active SIM card. In order to specify operator for the other SIM card it must
first be selected as primary SIM in “SIM Management”.

Field Name

Sample Value

Explanation

1

SIM card in use

SIM 1 / SIM 2

Shows current SIM card’s in use

2

Current operator

EE

Operator's name of the connected GSM
network

Note: after clicking Scan button - You will lose the current mobile connection!

7.1.4 Mobile Data Limit

This function lets you limit the maximum amount of data transferred on the WAN Interface in
order to minimise unwanted traffic costs.

7.1.4.1 Data Connection Limit Configuration

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Field Name

Sample / Value

Explanation

1

Enable data
connection limit

Enable/Disable

Disables mobile data when a limit for current
period is reached

2

Data limit (MB)

200

Disable mobile data after limit value in MB is
reached

3

Period

Month/Week/Day

Period for which mobile data limiting should
apply

4

Start day/ Start
hour

1

A starting time for mobile data limiting period

7.1.4.2 SMS Warning Configuration

7.1.5 SIM Idle protection

Some operators block user SIM cards after period of inactivity. This function enables router to
periodically switch to secondary SIM card and establish data connection with mobile network
in order to prevent sim card blocking.

7.1.5.1 Settings

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Field Name

Sample value

Explanation

1.

Enable

Enable/Disable

Enables SIM idle protection

2.

Period

Month / Week

Switches between monthly and weekly sim activation
periods

3.

Day

1-31 / Monday -

Sunday

Specifies the day for SIM idle protection activation, 1-31 if
Period is Month, and Monday – Sunday if period is week.

4.

Hour

1-24

Specifies the hour for SIM idle protection activation

5.

Minute

1-60

Specifies the minute for SIM idle protection activation

6.

Host to ping

8.8.8.8

Specifies IP address or domain name to send data packages
to

7.

Ping package
size

56

Specifies ping Package size in bytes

8.

Ping requests

2

Specifies requests to be sent

7.1.5.2 Test

Tests the functioning of idle protection with your parameters entered at settings tab.

Field Name

Sample value

Explanation

1.

SIM

SIM1 / SIM2

Displays SIM number

2.

SIM state

OK (inserted)

Displays status of the SIM card

3.

Host IP

1-31 / Monday -
Sunday

Displays the IP of the Host

4.

Ping

Success

Displays status of ping attempt

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7.2. WAN

7.2.1 Operating Mode

Type

Explanation

1

Main Wan

Switches between Mobile, Wired and Wi-Fi interface for main WAN

2

BackUp Wan

Let’s user to select one or two interfaces for WAN backup

3

Interface Name

Displays Wan interface name, and changes interface priority, the
interface at the table top has the highest priority

4

Protocol

Displays protocol used by WAN interface

5

IP Address

Displays IP address acquired by specific interface

6

Sort

Sorts table rows and changes interface priority, the highest interface has
highest priority

7.2.2 Common configuration

Common configuration allows you to configure your TCP/IP settings for the wan network.

You can switch between the Static, DHCP or PPPoE protocol by selecting the protocol that you
want to use and then pressing Switch Protocol

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7.2.2.1. General Setup

7.2.2.1.1 Static

This is the configuration setup for when you select the static protocol.

Filed name

Sample

Explanation

1.

IPv4 address

192.168.99.162

Your routers address on the WAN network

2.

IPv4 netmask

255.255.255.0

A mask used to define how “large” the WAN

network is

3.

IPv4 gateway

192.168.99.254

Address where the router will send all the outgoing
traffic

4.

IPv4 broadcast

192.168.99.255

Broadcast address (autogenerated if not set). It is
best to leave this blank unless you know what you
are doing.

5.

custom DNS
servers

8.8.8.8 8.8.6.6

Usually the gateway has some predefined DNS
servers. As such the router, when it needs to resolve

a hostname (“www.google.com”, “www.cnn.com”,
etc…) to an IP address, it will forward all the DNS

requests to the gateway. By entering custom DNS
servers the router will take care of host name
resolution. You can enter multiple DNS servers to
provide redundancy in case the one of the server
fails.

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7.2.2.2.2 DHCP

When you select the DHCP protocol you can use it as is, because most networks will not
require any additional advanced configuration. PPOE

7.2.2.1.3 PPPoE

This protocol is mainly used by DSL providers.

This is the configuration setup for when you select PPPoE protocol.

Filed name

Sample

Explanation

1.

PAP/CHAP
username

Test

Your username and password that you
would use to connect to your carriers
network.

2.

PAP/CHAP
password

your_password

PAP / CHAP Password

3.

Access Concentrator

isp

Specifies the name of access concentrator.
Leave empty to auto detect.

4.

Service Name

isp

Specifies the name of the service. Leave
empty to auto detect.

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7.2.2.2 Advanced

These are the advanced settings for each of the protocols. If you are not sure how to alter these
attributes it is highly recommended to leave them to highly trained professionals.

7.2.2.2.1 Static

Field Name

Sample Value

Explanation

1

Disable NAT

On / Off

Toggle NAT on / off

2

Override
MAC
Address

86:48:71:B7:E9:E4

Override MAC address of the WAN interface. If
your ISP gives you a static IP address it might also
bind it to your computers MAC address (i.e. that IP
will only work with your computer). In this field
you can enter your computers MAC address and
fool the gateway in thinking that it is
communicating with your computer

3

Override
MTU

1500

Maximum transmission unit – specifies the
largest possible size of a data packet.

7.2.2.2.2 DHCP

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7.2.2.2.3 PPPoE

Field Name

Sample / Value

Explanation

1

Disable NAT

Enable / disable

If checked, router will not perform NAT
(masquerade) on this interface

2

Use default
gateway

Enable / disable

If unchecked, no default route is configured

3

Use gateway metric

0

4

Use DNS servers
advertised by peers

Enable / disable

If unchecked, the advertised DNS server
addresses are ignored

5

LCP echo failure
threshold

0

Presume peer to be dead after given amount of
LCP echo failures, use 0 to ignore failures

6

LCP echo interval

5

Send LCP echo requests at the given interval in
seconds, only effective in conjunction with
failure threshold

7

Inactivity timeout

0

Close inactive connection after the given amount
of seconds, use 0 to persist connection

7.2.2.2.4 IP Aliases

IP aliases are a way of defining or reaching a subnet that works in the same space as the regular
network.

As you can see, the configuration is very similar to the static protocol; only in the example a
99th subnet is defined. Now if some device has an IP in the 99 subnet (192.168.99.xxx) and

the subnets gateway metric is “higher” and the device is trying to reach the internet it will
reroute it’s traffic not to the gateway that is defined in common configurations but through the

one that is specified in IP aliases.

You may optionally define a broadcast address and custom DNS server.

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7.2.2.2.5. Backup WAN configuration

Backup WAN is function that allows you to back up your primary connection in case it goes down.
There can be two backup connections selected at the same time, in that case, when primary
connection fails, router tries to use backup with higher priority and if that is unavailable or fails too,
then router tries the backup with lower priority.

The majority of the options consist of timing and other important parameters that help determine the
health of your primary connection. Regular health checks are constantly performed in the form of
ICMP packets (Pings) on your primary connection. When the connections state starts to change
(READY->NOT READY and vice versa) a necessary amount of failed or passed health checks has to
be reached before the state changes completely. This delay is instituted so as to mitigate “spikes” in
connection availability, but it also extends the time before the backup link can be brought up or down.

Field Name

Sample value

Explanation

1.

Health monitor
Interval

Disable/5/10/20/30/60
/120 Seconds

The interval at which health checks are
performed

2.

Health monitor
ICMP host(s)

Disable/DNS
Server(s) /WAN
GW/Custom

Where to Ping for a health check. As there is
no definitive way to determine when the
connection to internet is down for good,

you’ll have to define a host whose

availability that of the internet as a whole.

3.

Health monitor
ICMP timeout

1/3/4/5/10 Seconds

How long to wait for an ICMP request to
come back. Set a higher value if your
connection has high latency or high jitter
(latency spikes).

4.

Attempts before
failover

1/3/5/10/15/20

How many checks should fail for your WAN
connection to be declared DOWN for good.

5.

Attempts before
recovery

1/3/5/10/15/20

How many checks should pass for your WAN
connection to be declared UP.

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7.2.2.3. How do I set up a backup Link?

First we must select a main link and choose one or two backup links in WAN section. Then

push the “Edit” button and configure your WAN and Backup Wan settings to your liking. Click

Save and wait until the settings are applied. Now in the Status -> Network Information ->
WAN page there should be a status indication for the backup WAN. If everything is working
correctly you should see something like this:

Back up WAN Status

WAN(wired) IN USE

Backup (3G) READY

The above picture shows the status for Backup WAN configured on a wired main link. You
can now simulate a downed link by simply unplugging your Ethernet WAN cable. When
you’ve done so you should see this:

Back up WAN Status

WAN(wired) NOT READY

Backup (3G) IN USE

And, if you plug the cable back in you should, again, see this:

Back up WAN Status

WAN(wired) IN USE

Backup (3G) READY

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General Setup

7.3. LAN

This page is used to configure the LAN network, where all your devices and computers that
you connect to the router will reside.

7.3.1 Configuration

7.3.2.1 General Set Up

Field Name

Sample Value

Explanation

1

IP Address

192.168.1.1

Address that the router uses on the LAN network

2

IP Netmask

255.255.255.0

A mask used to define how large the LAN network is

3

IP Broadcast

0

IP broadcasts are used by BOOTP and DHCP clients to find
and send requests to their respective servers

7.3.1.1 Advanced Settings

Field name

Sample value

Explanation

1.

Accept router
advertisements

Enable/Disable

If enabled allows accepting router advertisements
(Disabled by default)

2.

Override MTU

1500

MTU (Maximum Transmission Unit) specifies the
largest possible size of a data packet

3.

Use gateway metric

0

With this field you can alter the metric of that
entry

4.

Use WAN port as LAN

Enable/Disable

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7.3.2 DHCP Server

The DHCP server is the router side service that can automatically configure the TCP/IP settings
of any device that requests such a service. If you connect a device that has been configured to
obtain IP address automatically the DHCP server will lease an address and the device will be
able to fully communicate with the router.

7.3.2.1 General Set up

Field Name

Sample Value

Explanation

1

DHCP

Enable /
Disable

Manage DHCP Server

2

Start

100

The starting address of the range that the DHCP server can
use to give out to devices. E.g.: if your LAN IP is

192.168.2.1 and your subnet mask is 255.255.255.0 that
means that in your network a valid IP address has to be in the
range of [192.168.2.1 – 192.168.2.254](192.168.2.0 and

192.168.2.255 are special unavailable addresses). If the Start
value is set to 100 then the DHCP server will only be able to
lease out addresses starting from 192.168.2.100

3

Limit

150

How many addresses the DHCP server gets to lease out.
Continuing on the above example: if the start address is

192.168.2.100 then the end address will be 192.168.2.254
(100 + 150 – 1 = 254).

4

Lease
time

12

How long can a leased IP be considered valid. An IP address
after the specified amount of time will expire and the device
that leased it out will have to request for a new one. Select
Hour or Minute (minimum 2min).

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7.3.2.2 Advanced settings

You can also define some advanced options that specify how the DHCP server will operate on
your LAN.

Field Name

Sample /
Value

Explanation

1

Dynamic
DHCP

Checked/
Unchecked

Dynamically allocate client addresses, if set to 0 only
clients present in the ethers files are served

2

Force

Checked/
Unchecked

Forces DHCP serving even if another DHCP server is
detected on the same network segment.

3

IP Netmask

You can override your LAN netmask here to make the

DHCP server think it’s serving a larger or a smaller

network than it actually is.

4

DHCP­Options

Additional options to be added for this DHCP server. For
example with '26,1470' or 'option:mtu, 1470' you can
assign an MTU per DHCP. Your client must accept MTU
by DHCP for this to work.

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7.4. VLAN

On this page you can configure your virtual LAN settings, either Port based or Tag based.

7.4.1 VLAN Networks

7.4.1.1 VLAN Functionality

Field Name

Sample Value

Explanation

1.

VLAN mode

Disabled / Port based /
Tag based

Lets user to choose the VLAN mode or disable
VLAN functionality.

7.4.1.2 VLAN Network List

If VLAN mode – Port based.

Field Name

Sample Value

Explanation

1.

VLAN ID

1

VLAN Identification number, allowed in range (1-4094)

2.

LAN ports

1 / 2 / 3

on

Switches each LAN port between ON, OFF or tagged state.

3.

Wireless access points

Enabled / Disabled

Assign selected access point(s) to selected LAN.

4.

LAN

Select to which LAN to assign selected LAN ports and
wireless access points.

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If VLAN mode – tagged based

If VLAN mode – tagged based

Field Name

Sample Value

Explanation

1.

VLAN ID

1

VLAN Identification number, allowed in range (1-4094)

3.

Wireless access points

Enabled / Disabled

Assign selected access point(s) to selected LAN.

4.

LAN

Select to which LAN to wireless access point(s).

7.4.2 LAN Networks

In this page you can create extra LAN networks, and assign them with LAN Ports and wireless

access points. You can get extra information on how to configure any of your LAN’s settings in
section – 6.3 LAN.

Field Name

Sample Value

Explanation

1.

LAN name

LAN2

Specifies new LAN name

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7.5. Wireless

On this page you can configure your wireless settings. Depending on whether your WAN mode
is set to Wi-Fi or not, the page will display either the options for configuring an Access Point
or options for configuring a connection to some local access point.

Access Points

Here you can see the Overview of the wireless configuration. It is divided into two main sections –
device and interface. One is dedicated to configuring hardware parameters other – software.
Here you can toggle the availability of the wireless radio and the physical channel frequency.
Important note: As seen in the picture you should always Save before toggling the radio on and
off.
ESSID – Your wireless networks identification string. This is the name of your Wi-Fi network.
When other Wi-Fi capable computers or devices scan the area for Wi-Fi networks they will see
your network with this name.
Hide ESSID – Will render your SSID hidden from other devices that try to scan the area.

7.5.1.1 Device

7.5.1.1.1 Advanced Settings

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Field name

Sample value

Explanation

1.

Mode

Auto, b, g, g+n

Different modes provide different throughput and
security options.

2.

Country Code

Any ISO/IEC 3166
alpha2 country code

Selecting this will help the wireless radio
configure its internal parameters to meet your
countries wireless regulations.

3.

Transmit
power

20%/40%/60%/80%/100
%

Select Wi-Fi signal power

4.

Frag.
Threshold

2346

The smallest packet size that can be fragmented
and transmitted by multiple frames. In areas were
interference is a problem, setting a lower fragment
threshold might help reduce the probability of
unsuccessful packet transfers, thus increasing
speed.

5.

RTS/CTS
Threshold

2346

Request to send threshold. It can help resolve
problems arising when several access points are in
the same area, contending.

7.5.1.2 Interface

7.5.1.2.1 Security

Encryption – There are many modes of encryption, a distinctive class is pointed out below.

First select an encryption method: TKIP, CCMP, TKIP&CCMP and auto. Note: Some

authentication methods won’t support TKIP (and TKIP&CCMP) encryption. After you’ve

selected your encryption method, you should enter your passphrase, which must be at least 8
characters long.

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7.5.1.2.2 MAC Filter

Filter – you can define a rule for what to do with the MAC list you’ve defined. You can either
allow only the listed MACs or allow ALL, but forbid only the listed ones.

7.5.1.2.3 Advanced settings

Separate clients – prevents Wi-Fi clients from communicating with each other on the sane
subnet.

7.4.1.3 Client

CASE904 can work as a Wi-Fi client (check 6.5 Chapter of this manual). Client mode is
nearly identical to AP, except for the fact that most for the options are dictated by the wireless
access point that the router is connecting to. Changing them can result in an interrupted
connection to an AP.

In addition to standard options you can also click the Scan button to rescan the surrounding
area and attempt to connect to a new wireless access point.

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7.6. Firewall

In this section we will look over the various firewall features that come with CASE6904.

7.6.1 General Settings

The routers firewall uses a standard Linux IPTables package, which uses routing chains and
policies to provide control over inbound and outbound traffic

Field Name

Sample Value

Explanation

1

Drop invalid

packets

Checked/Unchecked

A “Drop” action is performed on a

packet that is determined to be invalid

2

Input

Reject/Drop/Accept

DEFAULT* action that is to be

performed for packets that pass through

the Input chain.

3

Output

Reject/Drop/Accept

DEFAULT* action that is to be

performed for packets that pass through

the Output chain.

4

Forward

Reject/Drop/Accept

DEFAULT* action that is to be

performed for packets that pass through

the Forward chain.

*DEFAULT: When a packet goes through a firewall chain it is matched against all the rules for
that specific chain. If no rule matches said packet, an according Action (either Drop or Reject
or Accept) is performed.

 Accept – Packet gets to continue down the next chain.
 Drop – Packet is stopped and deleted.
 Reject – Packet is stopped, deleted and, differently from Drop, an ICMP packet containing a

message of rejection is sent to the source of the dropped packet.

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7.6.2 DMZ

By enabling DMZ for a specific internal host (for e.g.: your computer), you will expose that
host and its services to the routers WAN network (i.e. - internet).

7.6.3 Port Forwarding

Here you can define your own port forwarding rules

You can use port forwarding to set up servers and services on local LAN machines. The above
picture shows how you can set up a rule that would allow a website that is being hosted on

192.168.1.109, to be reached from the outside by entering http://routersExternalIp:12345/.

Field Name

Sample value

Explanation

1.

Name

“localWebsite”

Name of the rule. Used purely to make it
easier to manage rules.

2.

Protocol

TCP/UDP/TCP+UDP/Other

Type of protocol of incoming packet.

3.

External Port

1-65535

From what port on the WAN network will
the traffic be forwarded.

4.

Internal IP
address

IP address of some
computer on your LAN

The IP address of the internal machine that
hosts some service that we want to access
from the outside.

5.

Internal port

1-65535

To what port on the internal machine
would the rule redirect the traffic.

When you selecting ‘edit’ allows you to fine tune the firewall.

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Field Name

Sample value

Explanation

1

Name

“Local Website”

Name of the rule. Used purely to make it easier to
manage rules.

2

Protocol

TCP/UDP/TCP+

UDP

/ICMP/Custom

You may specify multiple by selecting (custom)
and then entering protocols separated by space
3

Source Zone

LAN / VPN / WAN

Match incoming traffic from this zone only

4

Source MAC
Address

Any

Match incoming traffic from these MACs only

5

Source IP
Address

Any

Match incoming traffic from this IP or range only

6

Source Port

Any

Match incoming traffic originating from the given
source port or port range on the client host only

7

External IP
Address

Any

Match incoming traffic directed at the given IP
address only

8

External port

12345

Match incoming traffic directed at the given
destination port or port range on this host only

9

Internal zone

LAN / VPN/WAN

Redirect matched incoming traffic to the specified
internal zone

10

Internal IP
Address

192.168.1.109

Redirect matched incoming traffic to the specified
internal host

11

Internal port

80

Redirect matched incoming traffic to the given port
on the internal host

12

Enable NAT
Loopback

Enable / disable

NAT loopback enables your local network (i.e.
behind your router/modem) to connect to a forward­facing IP address (such as 208.112.93.73) of a
machine that it also on your local network

13

Extra
Argument

Passes additional arguments to iptables. Use with
care!

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7.6.4 Traffic Rules

Traffic rule page contains a more generalised rule definition. With it you can block or open
ports, alter how traffic is forwarded between LAN and WAN and many more things.

Field Name

Explanation

1

Name

Name of the rule. Used for easier rules management purpose only

2

Protocol

Protocol type of incoming or outgoing packet

3

Source

Match incoming traffic from this IP or range only

4

Destination

Redirect matched traffic to the given IP address and destination port

5

Action

Action to be taken for the packet if it matches the rule

6

Enable

Self-explanatory. Uncheck to make the rule inactive. The rule will not be
deleted, but it also will not be loaded into the firewall.

7

Sort

When a packet arrives, it gets checked for a matching rule. If there are
several rules that match the rule, the first one is applied i.e. the order of
the rule list impacts how your firewall operates, therefore you are given
the ability to sort your list as you wish.

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Field Name

Sample Value

Explanation

1

Name

“Allow-DHCP-Relay

Used to make rule management easier

2

Restrict to
address
family

IPv4 - only

Match traffic from selected address family
only

3

Protocol

TCP/UDP/Any/ICMP/
WAN

Protocol of the packet that is being matched
against traffic rules

4

Match ICMP
type

Any

Match traffic with selected ICMP type only

5

Source Zone

Any Zone /
LAN/VPN/WAN

Match incoming traffic from this zone

6

Source MAC
address

Any

Match incoming traffic from this MAC
address only

7

Source
Address

Any

Match incoming traffic from this IP or range
only

8.

Source port

Any

Match incoming traffic originating from the
given source port or port range on the client
host only

9.

Destination
zone

Device/Any
zone/LAN/VPN/WAN

Match forwarded traffic to the given
destination zone only

10.

Destination
address

any

Match forwarded traffic to the given
destination IP address or IP range only

11.

Destination
port

67

Match forwarded traffic to the given
destination port or port range only

12

Action

Drop/Accept/Reject +
chain + additional rules

Action to be taken on the packet if it matches
the rule. You can also define additional
options like limiting packet volume, and
defining to which chain the rule belongs

7.6.4.1 Open Ports on the router

Field Name

Sample value

Explanation

1

Name

Open_port_rule

Used to make rule management easier

2

Protocol

TCP/UDP/Any/ICMP/
Custom

Protocol of the packet that is being
matched against traffic rules.

3

External Port

1 - 65535

Match incoming traffic from selected
address family only

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7.6.4.2 New Forward Rule

Field Name

Sample value

Explanation

1

Name

Forward_rule_new

Used to make rule management easier

2

Source

LAN/VPN/WAN

Match incoming traffic from selected
address family only

3

Protocol

LAN/VPN/Any/ICMP/
Custom

Protocol of the packet that is being
matched against traffic rules.

7.6.4.3 Source NAT

Field Name

Sample Value

Explanation

1

Name

Forward_rule_new

2

Protocol

TCP/UDP/Any/ICMP/Cust
om

Protocol of the packet that is being
matched against traffic rules.

3

Source

LAN/VPN/WAN

Match incoming traffic from selected
address family only

4

Destination

Redirect matched traffic to the given IP
address and destination port

5

SNAT

SNAT (Source Network Address
Translation) rewrite packet\'s source IP
address and port

6

Enable

Enable / Disable

Make a rule active/inactive

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You can configure firewall source NAT rule, by clicking the edit button

Field Name

Sample Value

Explanation

1

Name

Allow-DHCP-

Relay

Used to make rule management easier

2

Protocol

TCP/UDP/Any/IC

MP/Custom

Protocol of the packet that is being matched against
rule 3 Source Zone

LAN/VPN/WAN

Match incoming traffic from this zone only

4

Source MAC
Address

Any

Match incoming traffic from these MACs only

5

Source Address

Any

Match incoming traffic from this IP or range only

6

Source Port

Any

Match incoming traffic originating from the
given source port or port range on the client host
only

7

Destination zone

LAN/VPN/WAN

Match forwarded traffic to the given destination
zone only

8

Destination
address

Select from list

Match forwarded traffic to the given destination
IP address or IP range only

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9

Destination port

Any

Match forwarded traffic to the given destination
port or port range only

10

SNAT IP Address

“10.101.1.10”

Rewrite matched traffic to the given IP address

11

SNAT Port

“22”

Rewrite matched traffic to the given source port.
May be left empty to only rewrite the IP address'

12

Extra Arguments

Passes additional arguments to iptables. Use
with care!

7.6.5 Custom Rules

Here you have the ultimate freedom in defining your rules – you can enter them straight into
the iptables program. Just type them out into the text field ant it will get executed as a Linux
shell script. If you are unsure of how to use iptables, check the internet out for manuals,
examples and explanations.

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7.6.6 DDOS Prevention

7.6.6.1 SYN Flooding Protection

SYN Flood Protection allows you to protect from attack that exploits part of the normal TCP
three-way handshake to consume resources on the targeted server and render it unresponsive.
Essentially, with SYN flood DDoS, the offender sends TCP connection requests faster than
the targeted machine can process them, causing network saturation.

Field Name

Sample value

Explanation

1.

Enable SYN
flood protection

Enable/Disable

Makes router more resistant to SYN flood attacks.

2.

SYN flood rate

“25”

Set rate limit (packets/second) for SYN packets
above which the traffic is considered a flood.

3.

SYN flood burst

“50”

Set burst limit for SYN packets above which the
traffic is considered a flood if it exceeds the
allowed rate.

4.

TCP SYN
cookies

Enable/Disable

Enable the use of SYN cookies(particular choices
of initial TCP sequence numbers by TCP servers).

7.6.6.2 Remote ICMP Requests

Attackers are using ICMP echo request packets directed to IP broadcast addresses from remote
locations to generate denial-of-service attacks.

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Field Name

Sample value

Explanation

1.

Enable ICMP
requests

Enable/Disable

Blocks remote ICMP echo-request type

2.

Enable ICMP limit

Enable/Disable

Enable ICMP echo-request limit in selected
period

3.

Limit period

Second/Minute/
Hour/Day

Select in what period limit ICMP echo­request

4.

Limit

“10”

Maximum ICMP echo-request during the
period

5.

Limit burst

“5”

Indicating the maximum burst before the
above limit kicks in.

7.6.6.3 SSH Attack Prevention

Prevent SSH( Allows a user to run commands on a machine's command prompt without them
being physically present near the machine. ) attacks by limiting connections in defined period

7.6.6.4 HTTP Attack Prevention

HTTP attack sends a complete, legitimate HTTP header, which includes a 'Content-Length'
field to specify the size of the message body to follow. However, the attacker then proceeds to
send the actual message body at an extremely slow rate (e.g. 1 byte/110 seconds). Due to the
entire message being correct and complete, the target server will attempt to obey the 'Content­Length' field in the header, and wait for the entire body of the message to be transmitted, hence
slowing it down.

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Field Name

Sample value

Explanation

1.

Enable HTTP limit

Enable/Disable

Limits HTTP connections per period

2.

Limit period

Second/Minute/
Hour/Day

Select in what period limit HTTP
connections

3.

Limit

“10”

Maximum HTTP connections during the
period

4.

Limit burst

“10”

Indicating the maximum burst before the
above limit kicks in.

7.6.6.5 HTTPS Attack Prevention

Field Name

Sample value

Explanation

1.

Enable HTTPS limit

Enable/Disable

Limits HTTPS connections per period

2.

Limit period

Second/Minute/Hour/Day

Select in what period limit HTTPS
connections

3.

Limit

“10”

Maximum HTTPS connections
during the period

4.

Limit burst

“10”

Indicating the maximum burst before
the above limit kicks in.

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7.7. Static Routes

Static routes provide a way of entering custom entries in the internal routing table of the Case
Communications 6904

Field Name

Value

Explanation

1

Interface

LAN/WAN/PPP/WAN2

The zone where the ‘Target’ resides

2

Target

IP Address

The source of the traffic

3

Netmask

IP Mask

Mask that is applied to the Target to
determine to what actual IP addresses the
routing rule applies

4

Gateway

IP Address

To where the router should send all the
traffic that applies to the rule

5

Metric

Integer

Used as a sorting measure. If a packet about
to be routed fits two rules, the one with the
higher metric is applied.

Additional note on Target & Netmask: You can define a rule that applies to a single IP like this:
Target - some IP; Netmask - 255.255.255.255. Furthermore you can define a rule that applies to
a segment of IPs like this: Target – some IP that STARTS the segment; Netmask – Netmask
that defines how large the segment is. E.g.:

192.168.55.161

255.255.255.255

Only applies to 192.168.55.161

192.168.55.0

255.255.255.0

Applies to IPs in range 192.168.55.0-192.168.55.255

192.168.55.240

255.255.255.240

Applies 192.168.55.240 - 192.168.55.255

192.168.55.161

255.255.255.0

192.168.55.0 - 192.168.55.255

192.168.0.0

255.255.0.0

192.168.0.0 - 192.168.255.255

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8.0. Services

8.1. VRRP

8.1.1 VRRP LAN Configuration settings

Field Name

Sample

Explanation

1

Enable

Enable / disable

Enable VRRP (Virtual Router Redundancy Protocol)
for LAN

2

IP Address

192.168.1.253

Virtual IP address for LAN's VRRP (Virtual Router
Redundancy Protocol) cluster

3

Virtual ID

1

Routers with same IDs will be grouped in the same
VRRP (Virtual Router Redundancy Protocol) cluster

4

Priority

100

Router with highest priority value on the same VRRP
(Virtual Router Redundancy Protocol) cluster will act
as a master

8.1.2 Check Internet connection

Field Name

Sample

Explanation

1

Enable

Enable / Disable

Enable WAN’s connection monitoring

2

Ping IP Address

8.8.4.4

A host to send ICMP (Internet Control
Message Protocol) packets to

3

Ping Interval

10

Time interval in minutes between two pings

4

Ping Timeout(sec)

1

Response timeout value, interval [1 - 9999]

5

Ping Packet size

50

ICMP (Internet Control Message Protocol)
packet's size, interval [0 - 1000]

6

Ping retry count

10

Failed Ping attempt’s count before

determining that connection is lost

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8.2 TR-069

TR-069 is a standard developed for automatic configuration and management of remote devices
by Auto Configuration Servers (ACS).

8.2.1. TR-069 Parameters Configuration

Field name

Sample

Explanation

1

Enable

Enable/Disable

Enable TR-069 client

2

Enable Periodic
Transmission

Enable/Disable

Enable periodic transmissions of
data to server

3

Sending interval

100

Periodic data transmission to
server period

4

Password

*******

Password for authentication on
TR-069 server

5

URL

http://192.168.1.110:8080

TR-069 server URL address

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8.3 Web Filtering

8.3.1 Site Blocking

Field Name

Sample

Explanation

1

Enable

Enable / Disable

Enable host name based websites blocking

2

Mode

Whitelist/blacklist

Whitelist - allow every site on the list and block
everything else. Blacklist - block every site on the
list and allow everything else

8.3.2 Proxy based URL Content Blocker

Field Name

Sample

Explanation

1

Enable

Enable / Disable

Enable proxy server based URL content blocking.
Works with HTTP protocol only

2

Mode

Whitelist/Blacklist

Whitelist - allow every part of URL on the list and
block everything else. Blacklist - block every part of
URL on the list and allow everything else

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6904 3G/4G LTE Router Manual

8.4 NTP

NTP configuration lets you setup and synchronize routers time.

Field Name

Description

Notes

1

Current System Time

Local time of router.

-------------------

2

Time Zone

Time zone of your country.

-------------------

3

Enable NTP

Enables the functionality

-------------------

4

Update interval

How often router updates
systems time

-------------------

5

Count of time
synchronizations

Total amount of times that
router will do the
synchronization

If left blank - the count
will be infinite

6

Offset frequency

Adjust the minor drift of the
clock so that it will be more
accurate

-------------------------

Note, if using Time Servers at least one server has to be present, otherwise NTP will not serve
its purposes.

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8.5 VPN

8.5.1 Open VPN

VPN (Virtual Private Network) is a method for secure data transfer through unsafe public
network. This section explains how to configure OpenVPN, which is implementation of VPN
supported by the Case 6904 router.
A picture below demonstrates default OpenVPN configurations list, which is empty, so you

have to define a new configuration to establish any sort of OpenVPN connection. To create it,
enter desired configuration name in “New configuration name” field, select device role from
“Role” drop down list. For example, to create an OpenVPN client with configuration name
Demo, select client role, name it “Demo” and press “Add New” button as shown in the
following picture.

To see at specific configuration settings press “edit” button located in newly created
configuration entry. A new page with detailed configuration appears, as shown in the picture
below (TLS client example).

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There can be multiple server / client instances

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Field name

Explanation

1

Enable

Switches configuration on and off. This must be selected to make
configuration active.

2

TUN / TAP

Selects virtual VPN interface type. TUN is most often used in typical IP­level VPN connections, however, TAP is required to some Ethernet
bridging configurations.

3

Protocol

Defines a transport protocol used by connection. You can choose here
between TCP and UDP.

4

Port

Defines TCP or UDP port number (make sure, that this port allowed by
firewall).

5

LZO

This setting enables LZO compression. With LZO compression, your
VPN connection will generate less network traffic; however, this means
higher router CPU loads. Use it carefully with high rate traffic or low
CPU resources.

6

Encryption

Selects Packet encryption algorithm.

7

Authentication

Sets authentication mode, used to secure data sessions. Two possibilities

you have here: “Static” means, that OpenVPN client and server will use
the same secret key, which must be uploaded to the router using “Static

pre-shared key” option. “Tls” authentication mode uses X.509 type
certificates. Depending on your selected OpenVPN mode (client or
server) you have to upload these certificates to the router:
For client: Certificate Authority (CA), Client certificate, Client key.
For server: Certificate Authority (CA), Server certificate, Server key and
Diffie-Hellman (DH) certificate used to key exchange through unsafe
data networks.
All mention certificates can be generated using OpenVPN or OpenSSL
utilities on any type host machine. Certificate generation and theory is
out of scope of this user manual.

8

Remote Host IP

Address

IP address of OpenVPN server (applicable only for client configuration).

9

Resolve Retry

Sets time in seconds to try resolving server hostname periodically in case
of first resolve failure before generating service exception.

10

Keep Alive

Defines two time intervals: one is used to periodically send ICMP
request to OpenVPN server, and another one defines a time window,
which is used to restart OpenVPN service, if no ICPM request is
received during the window time slice. Example Keep Alive “10 60”

11

Remote network

IP address

IP address of remote network, an actual LAN network behind another
VPN endpoint.

12

Remote network

IP netmask

Subnet mask of remote network, an actual LAN network behind another
VPN endpoint.

13

Certificate

authority

Certificate authority is an entity that issues digital certificates. A digital
certificate certifies the ownership of a public key by the named subject of
the certificate.

14

Client

certificate

Client certificate is a type of digital certificate that is used by client
systems to make authenticated requests to a remote server. Client
certificates play a key role in many mutual authentication designs,
providing strong assurances of a requester's identity.

15

Client Key

Authenticating the client to the server and establishing precisely who
they are

After setting any of these parameters press the “Save” button. Some of selected parameters will
be shown in the configuration list table. You should also be aware of the fact that router will
launch separate OpenVPN service for every configuration entry (if it is defined as active, of
course) so the router has ability to act as server and client at the same time.

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8.5.2 IP Sec

The IPsec protocol client enables the router to establish a secure connection to an IPsec peer via
the Internet. IPsec is supported in two modes - transport and tunnel. Transport mode creates
secure point to point channel between two hosts. Tunnel mode can be used to build a secure
connection between two remote LANs serving as a VPN solution.

IPsec system maintains two databases: Security Policy Database (SPD) which defines whether
to apply IPsec to a packet or not and specify which/how IPsec-SA is applied and Security
Association Database (SAD), which contain Key of each IPsec-SA.

The establishment of the Security Association (IPsec-SA) between two peers is needed for
IPsec communication. It can be done by using manual or automated configuration.
Note: router starts establishing tunnel when data from router to remote site over tunnel is sent.
For automatic tunnel establishment used tunnel Keep Alive feature.

Field name

Explanation

1

Enable

Check box to enable IPSec.

2

Mode

Select “Main”, “Aggressive” or "Base" mode accordingly to your

IPSec server configuration.

3

Enable NAT Traversal

Enable this function if client-to-client applications will be used.

4

Enable initial contact

Enable this to send an INITIAL-CONTACT message.

5

My identifier type

Set the device identifier for IPSec tunnel. E.g. You can use your
IP address

6

My identifier

Set the device identifier for IPSec tunnel.
In case the 6904 has a Private IP, its identifier should be its own
LAN network address. In this way, the mobile users are better
supported

7

Pre-share key

Specify the authentication secret [string]. Secret’s length depends

on selected algorithm, eg. 128 bit long secret is 16 characters in
length, 128 bits / 8 bits (one character) = 16.

8

Remote VPN endpoint

Set remote IPSec server IP address.

9

Enable (DPD)

If the 6904 does not receive DPD-ACK message from its IPSec
peer, 6904 shuts the connection down.

10

Delay (Sec)

Select delay between peer acknowledgement requests

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Phase 1 and Phase 2 must be configured accordingly to the IPSec server configuration, thus
algorithms, authentication and lifetimes of each phase must be identical.

Remote Network Secure Group – Set the remote network (Secure Policy Database)
information. It must be LAN network of remote IPSec host.

Field Name

Explanation

1

Tunnel Keep
Alive

Allows sending ICMP echo request (Ping utility) to the remote
tunnel network. This function may be used to automatically start
the IPSec tunnel. This function should be used every time.

2

Enable

Allows sending ICMP echo requests to the remote tunnel
network

3

Host

Enter IP address to which ICMP echo requests will be sent.

4

Ping period
(sec)

Set sent ICMP request period in seconds.

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8.5.3 GRE Tunnel

GRE (Generic Routing Encapsulation RFC2784) is a solution for tunnelling RFC1812 private
address-space traffic over an intermediate TCP/IP network such as the Internet. GRE tunnelling
does not use encryption it simply encapsulates data and sends it over the WAN.

In the example network diagram two distant networks LAN1 and LAN2 are connected.
To create GRE tunnel the user must know the following parameters:

1. Source and destination IP addresses.

2. Tunnel local IP address

3. Distant network IP address and Subnet mask.

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Field Name

Explanation

1

Enable

Check the box to enable the GRE Tunnel function.

2

Remote end point
IP address

Specify remote WAN IP address
3

Remote network

IP address of LAN network on the remote device.

4

Remote network
netmask

Network of LAN network on the remote device. Range [0­32].

5

Local tunnel IP

Local virtual IP address. Can not be in the same subnet as
LAN network.

6

Local tunnel NetMask

Network of local virtual IP address. Range [0-32]

7

MTU

Specify the maximum transmission unit (MTU) of a
communications protocol of a layer in bytes.

8

TTL

Specify the fixed time-to-live (TTL) value on tunneled
packets [0-255]. The 0 is a special value meaning that
packets inherit the TTL value.

9

PMTUD

Check the box to enable the Path Maximum Transmission
Unit Discovery (PMTUD) status on this tunnel.

10

Enable Keep Alive

It gives the ability for one side to originate and receive
keepalive packets to and from a remote router even if the
remote router does not support GRE keepalives.

11

Keep Alive Host

Keep Alive host IP address. Preferably IP address which
belongs to the LAN network on the remote device.
12

Keep Alive Interval

Time interval for Keep Alive. Range [0 - 255].

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8.5.4 PPTP

Point-to-Point Tunnelling Protocol (PPTP) is a protocol (set of communication rules) that
allows corporations to extend their own corporate network through private "tunnels" over the
public Internet. Effectively, a corporation uses a wide-area network as a single large local area
network. A company no longer needs to lease its own lines for wide-area communication but
can securely use the public networks. This kind of interconnection is known as a virtual private
network (VPN).

Field Name

Explanation

1

Enable

Check the box to enable the PPTP function.

2

Local IP

IP Address of this device (6904)

3

Remote IP range begin

IP address leases beginning

4

Remote IP range end

IP address leases end

5

Username

Username to connect to PPTP (this) server

6

Password

Password to connect to PPTP server

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8.5.5 L2TP

Allows setting up a L2TP server or client and should it be needed - using it with IPsec
(L2TP/IPSec). Below is L2TP server configuration example.

Field Name

Explanation

1

Enable

Check the box to enable the L2TP function.

2

Local IP

IP Address of this device (6904)

3

Remote IP range begin

IP address leases beginning

4

Remote IP range end

IP address leases end

5

Username

Username to connect to L2TP (this) server

6

Password

Password to connect to L2TP server

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8.6 Dynamic DNS

Dynamic DNS (DDNS) is a domain name service allowing to link dynamic IP addresses to
static hostname.
To start using this feature firstly you should register to DDNS service provider (example list is
given in description).
You are provided with add/delete buttons to manage and use different DDNS configurations at
the same time!

You can configure many different DDNS Hostnames in the main DDNS Configuration section.

To edit your selected configuration, select Edit

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Field name

Value

Explanation

1

Enable

-

Enables current DDNS configuration.

2

Status

-

Timestamp of the last IP check or update.

3

Service

1. dydns.org

2. 3322.0rg

3.no-ip.com

4.easydns.com

Your dynamic DNS service provider selected from
the list. In case your DDNS provider is not present
from the ones provided, please feel free to use
"custom" and add hostname of the update URL.

4

Host
name

Yourhost.eg.org

Domain name which will be linked with dynamic IP
address.

5

User
name

Your_username

Name of the user account.
6

Password

Your_password

Password for the user account

7

IP Source

Public
Private
Custom

This option allows you to select specific 6904
interface, and then send the IP address of that
interface to DDNS server. So if, for example, your
6904 has Private IP (i.e. 10.140.56.57) on its WAN
(3G/LTE interface), then you can send this exact IP
to DDNS server by selecting "Private", or by
selecting "Custom" and "WAN" interface. The
DDNS server will then resolve hostname queries to
this specific IP.

8

IP renew
interval
(Min)

10 (Minutes)

Time interval (in minutes) to check if the IP address
of the device have changed.

9

Force IP
renew

472 Minutes

Time interval (in minutes) to force IP address renew.

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8.7 SNMP

SNMP settings window allows you to remotely monitor and send GSM event information to the
server.

8.7.1 SNMP Settings

Field name

Value

Explanation

1

Enable SNMP
service

Enable /
Disable

Run SNMP (Simple Network Management
Protocol) service on system's start up

2

Enable remote
access

Enable /
Disable

Open port in firewall so that SNMP (Simple
Network Management Protocol) service may be
reached from WAN

3

Port

161

SNMP (Simple Network Management Protocol)
service's port

4

Community

Public/
Private/
Custom

The SNMP (Simple Network Management
Protocol) Community is an ID that allows access
to a router's SNMP data

5

Community name

Custom

Set custom name to access SNMP

6

Location

Location

Trap named sysLocation

7

Contact

support@
case.com
eg

Trap named sysContact

8

Name

Trap named sysName

Variables / OID

OID

Description

1

1.3.6.1.4.1.99999.1.1.1

Modem IMEI

2

1.3.6.1.4.1.99999.1.1.2

Modem model

3

1.3.6.1.4.1.99999.1.1.3

Modem manufacturer

4

1.3.6.1.4.1.99999.1.1.4

Modem revision

5

1.3.6.1.4.1.99999.1.1.5

Modem serial number

6

1.3.6.1.4.1.99999.1.1.6

SIM status

7

1.3.6.1.4.1.99999.1.1.7

Pin status

8

1.3.6.1.4.1.99999.1.1.8

IMSI

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9

1.3.6.1.4.1.99999.1.1.9

Mobile network registration status

10

1.3.6.1.4.1.99999.1.1.10

Signal level

11

1.3.6.1.4.1.99999.1.1.11

Operator currently in use

12

1.3.6.1.4.1.99999.1.1.12

Operator number (MCC+MNC)

13

1.3.6.1.4.1.99999.1.1.13

Data session connection state

14

1.3.6.1.4.1.99999.1.1.14

Data session connection type

15

1.3.6.1.4.1.99999.1.1.15

Signal strength trap

16

1.3.6.1.4.1.99999.1.1.16

Connection type trap

8.7.2 Trap Settings

Field name

Value

Explanation

1

SNMP Trap

Enable / Disable

Enable SNMP (Simple Network Management
Protocol) trap functionality

2

Host/IP

192.168.99.155

Host to transfer SNMP (Simple Network
Management Protocol) traffic to

3

Port

162

Port for trap's host

4

Community

Public / Private

The SNMP (Simple Network Management
Protocol) Community is an ID that allows access
to a router's SNMP data

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8.8 SMS Utilities

The Case 6904 has an extensive number of SMS Utilities. These are subdivided into 6 sections:
SMS Utilities, Call Utilities, User Groups, SMS Management, Remote Configuration,
Statistics.

8.8.1 SMS Utilities

You can choose your SMS Keyword (text to be sent) and authorized phone number in the main
menu. You can edit each created rule by hitting Edit button. All configuration options are listed
below:

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Field name

Value

Explanation

1

Enable
SMS
reboot

This check box will enable
and disable SMS reboot
function.

If you select Get Status, it will send routers status
once it has rebooted and is operational again. For
Get Status description see item No. 4 of this table.

2

SMS text

SMS text which will
reboot router.

SMS text can contain letters, numbers, spaces and
special symbols. Capital letters also matters.

3

Sender
Phone
Number

Phone number of person
who can reboot router via
SMS message

You can add as many phone numbers as you need.
Dropdown list with additional rows will show up if

you click on “add” icon at the end of phone number

row.

4

Get
Status

Check this to receive
connection status via SMS
after a reboot.

This is both separate SMS Rule and an option under
SMS Reboot rule.

5

Enable
SMS
Status

This check box will enable
and disable SMS status
function.

SMS status is disabled by default.
6

SMS text

SMS text which will send
routers status.

SMS text can contain letters, numbers, spaces and
special symbols. The SMS is case sensitive

7

Sender
Phone
Number

Phone number of person
who can receive router
status via SMS message

You can add as many phone numbers as you need.
Dropdown list with additional rows will show up if

you click on “add” icon at the end of phone number

row.

8

Get
informati
on

Data state Operator
Connection type Signal
Strength Connection State
IP

You can select which status elements to display.

9

Wireless
On/Off
via SMS

This check box will enable
and disable this function

Allows Wi-Fi control via SMS
10

Wireless
on SMS
text

SMS text which will turn
Wi-Fi ON

SMS text can contain letters, numbers, spaces and
special symbols. Capital letters also matters.

11

Wireless
off SMS
text

SMS text which will turn
Wi-Fi OFF

SMS text can contain letters, numbers, spaces and
special symbols. Capital letters also matters.

12

Sender
Phone
number

Phone number of person
who can receive router
status via SMS message

You can add as many phone numbers as you need.
Dropdown list with additional rows will show up if

you click on “add” icon at the end of phone number

row.

13

Write to
config

Permanently saves Wi-Fi
state

With this setting enabled, router will keep Wi-Fi
state even after reboot.
If it is not selected, router will revert Wi-Fi state
after reboot.

14

Mobile
Settings
via SMS

This check box will enable
and disable mobile settings
function

Allows cellular control via SMS

15

SMS text

Key word that will precede
actual configuration
parameters

SMS text can contain letters, numbers, spaces and
special symbols. Capital letters also matters.

16

Sender
phone
number

Phone number of person
who can receive router
status via SMS message

You can add as many phone numbers as you need.
Dropdown list with additional rows will show up if

you click on “add” icon at the end of phone number

row.

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Mobile settings via SMS parameters

Field name

Value

Explanation

1

Apn=

i.e. internet.gprs

Sets APN. i.e: apn=internet.gprs

2

dialnumber=

i.e. *99***1#

Sets dial number

3

auth_mode=

none
pap
chap

Sets authentication mode

4

Service=

auto
3gpreferred
3gonly
2gpreferred
2gonly

You can add as many phone numbers as you need.
Dropdown list with additional rows will show up if

you click on “add” icon at the end of phone number

row.

5

username=

User

Used only if PAP or CHAP authorization is
selected

6

Password=

user

Used only if PAP or CHAP authorization is
selected

All Mobile settings can be changed in one SMS. Between each <parameter=value> pair a space
symbol is necessary.

Example: cellular apn=internet.gprs dialnumber=*99***1# auth_mode=pap service=3gonly
username=user password=user

Field name

Value

Explanation

1

3G On/Off via
SMS

This check box will enable
and disable this function

Function disabled by default

2

3G on SMS text

Text to turn 3G connection
ON

SMS text can contain letters, numbers,
spaces and special symbols. The text is
case sensitive

3

3G off SMS text

Text to turn 3G connection
OFF

4

Write to config

Permanently saves 3G
network state

With this setting enabled, router will keep
3G state even after reboot.
If it is not selected, router will revert 3G
state after reboot.

5

Change profile
via SMS

This check box will enable
and disable this function

Function disabled by default

6

SMS text to
change profile

Keyword that must precede
profile name

SMS text can contain letters, numbers,
spaces and special symbols. The text is
case sensitive

7

SMS text to get
list of profiles

Upon receiving this SMS
router will send list of
created profiles to the sender
number

8

Sender Phone
number

Phone number of person who
can control this function

You can add as many phone numbers as
you need. Dropdown list with additional

rows will show up if you click on “add”

icon at the end of phone number row.

Important Notes:

3G settings must be configured correctly. If SIM card has PIN number you must enter it at
“Network” > “3G” settings. Otherwise SMS reboot function will not work.

The Senders phone number must contain the country code. You can check sender phone
number format by reading the details of old SMS text massages you receiving usually.

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8.8.2 Calling Utilities

Allows users to call the router in order to perform one of the actions: Reboot, Get Status, turn
Wi-Fi ON/OFF, turn Mobile data ON/OFF. Only thing that is needed is to call routers SIM card
number from allowed phone (user) and 6904 will perform all actions that are assigned for this
particular number. To configure new action on call rules you just need to click the Add button
in the ”New Call rule” section. After that, you get in to the “Modify Call Rule section”.

Field name

Sample

Explanation

1

Enable

Enable / disable

Enables the rules

2

Action

Reboot

Action to be taken after receiving a call, you
can choose from following actions: Reboot,
Send status, Switch Wi-Fi, Switch mobile
data, switch output

3

Allowed users

From all numbers

Allows to limit action triggering from all
users, to user groups or single user numbers

4

Get Status via
SMS after reboot

Enable / disable

Enables automatic message sending with
router status information after reboot

8.8.3 User Groups

Gives possibility to group phone numbers for SMS management purposes. You can then later
use these groups in all related SMS functionalities. This option helps if there are several Users
who should have same roles when managing router via SMS. You can create new user group by

entering group name and clicking on Add button in “Create New User Group” section. After
that you get to “Modify User Group” section.

Field name

Sample

Explanation

1

Group Name

Group 1

The name you give to the number group

2

Phone Number

+44 706
1111111

Number to add to users group, must match international
format. You can add many phone numbers fields by
clicking on the green + symbol

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8.8.4 SMS Management

8.8.1.1. Read SMS

In SMS Management page Read SMS you can read and delete received/stored SMS.

8.8.1.2. Send SMS

Field name

Sample

Explanation

1

Phone Number

+44 706
1111111

Recipients phone number. Should be preceded

with country code, i.e. “+44

2

Message

My text

Message text, special characters are allowed.

8.8.1.3. Storage

ith the storage option you can choose for router NOT to delete SMS from SIM card. If this
option is not used, router will automatically delete all incoming messages after they have been
read. Message status “read/unread” is examined every 60 seconds. All “read” messages are
deleted

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Field name

Sample

Explanation

1

Save message
on SIM

Enabled / Disabled

Enables received message storing SIM card

2

Leave Free
Space

1

Specified how much space for SMS should
remain free on the SIM at all times

8.8.5. Remote Configuration

The Case Communications 6904 router can be configured via an SMS from another 6904. You
only have to select which configuration details are to be sent, generate the SMS Text, type in
the phone number and Serial number of the router that you wish to configure and Send the
SMS.

Total count of SMS is managed automatically. You should be aware of possible number of
SMS and use this feature carefully. It should not, generally, be used if you have high cost
per SMS. This is especially relevant if you will try to send whole OpenVPN configuration,
which might accumulate ~40 SMS.

8.8.5.1. Receive Configuration

This section controls how should configuration initiation party should identify itself. In this
scenario Case Communications 6904 itself is being configured.

Field name

Sample

Explanation

1

Enable

Enabled / Disabled

Enables router to receive its
configuration

2

Authorisation
method

No authorization / By serial By
administration password

Method at Receiving and
Sending ends must match

3

Allowed
users

From all numbers From group
From single number

Gives greater control and
security measures

Note, that for safety reasons Authorization method should be configured before
deployment of the router.

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8.8.5.2. Send Configuration

This section lets you configure remote Case 6904 devices. The authorisation settings must
confirm to those that are set on the receiving party.

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Field name

Values

Explanation

1

Generate SMS

217.147.40.255

Generate new SMS settings or use current device
configuration

2

Mobile

SIM1 / SIM 2

Include configuration for mobile network

3

WAN

Enable/Disable

Include configuration for WAN (Wide Area
Network)

4

LAN

Enable/Disable

Include configuration for LAN (Local Area
Network)

5

Interface

Enable/Disable

Interface type used for WAN (Wide Area Network)
connection

6

Protocol

Static / DHCP

Network protocol used for network configuration
parameters management

7

IP address

217.147.40.44

IP address that router will use to connect to the
internet

8

IP Netmask

255.255.255.0

That will be used to define how large the WAN
(Wide Area Network) network is

9

IP Gateway

217.147.40.44

The address where traffic destined for the internet is

routed to.

10

IP Broadcast

217.147.40.255

A logical address at which all devices connected to
a multiple-access communications network are
enabled to receive datagrams

11

Primary SIM

SIM1 / SIM2

The SIM card that will be used

12

Mobile Cnx

Use PPPD Mode
Use NDIS Mode

An underlying agent that will be used for mobile
data connection creation and management

13

APN

“internet.mnc012.
mcc345.gprs”

(APN) is the name of a gateway between a GPRS,
3G or 4G mobile network and another computer
network, frequently the public Internet.

14

Dialling No.

“[phone]”

A phone number that will be used to establish a
mobile PPP (Point-to-Point Protocol) connection

15

Authenticatio
n method

CHAP/PAP/None

Select an authentication method that will be used to
authenticate new connections on your GSM carrier's
network

16

User name

Admin

User name used for authentication on your GSM
carrier's network

17

Password

Password

Password used for authentication on your GSM
carrier's network

18

Service Mode

2G only
2G preferred
3G only
3G preferred
4G (LTE) only
4G (LTE) preferred
Automatic

Select network's preference. If your local mobile
network supports GSM (2G), UMTS (3G) or LTE
(4G) you can specify to which network you prefer
to connect to

19

IP Address

192.168.1.1

IP address that router will use on LAN (Local Area
Network) network

20

IP Netmask

255.255.255.0

A subnet mask that will be used to define how large
the LAN (Local Area Network) network is

21

IP Broadcast

192.168.1.255

A logical address at which all devices connected to
a multiple-access communications network are
enabled to receive datagrams