iS5 iSG4F User manual

Intelligent Flexible Secure Gateway
IEC 61850-3 and IEEE 1613 compliant
iSG4F User’s Manual
Version 1.1
September 2014
iS5 Communications Inc.
#3-7490 Pacific Circle
Mississauga, Ontario, L5T 2A3
Tel: + 905 670 0004
Fax: + 289 401 5201
Website: www.iS5Com.com
E-mail: [e-mail]

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COPYRIGHT NOTICE
Copyright © 2013 iS5 Communications Inc.
All rights reserved.
No part of this publication may be reproduced in any form without the prior written consent of
iS5 Communications Inc. (iS5).
TRADEMARKS
iS5Com is a registered trademark of iS5. All other trademarks belong to their respective owners.
REGULATORY COMPLIANCE STATEMENT
Product(s) associated with this publication complies/comply with all applicable regulations.
Please refer to the Technical Specifications section for more details.
WARRANTY
iS5 warrants that all products are free from defects in material and workmanship for a specified
warranty period from the invoice date (5 years for most products). iS5 will repair or replace
products found to be defective within this warranty period including shipping costs. This
warranty does not cover product modifications or repairs done by persons other than
iS5-approved personnel, and this warranty does not apply to products that are misused,
abused, improperly installed, or damaged by accident.
Please refer to the Technical Specifications section for the actual warranty period(s) of the
product(s) associated with this publication.
DISCLAIMER
Information in this publication is intended to be accurate. iS5 shall not be responsible for its use
or infringements on third-parties as a result of its use. There may occasionally be
unintentional errors on this publication. iS5 reserves the right to revise the contents of this
publication without notice.
CONTACT INFORMATION
iS5 Communications Inc.
#3-7490 Pacific Circle, Mississauga, Ontario, L5T 2A3
Tel: + 905-670-0004 // Fax: + 289-401-5206
Technical Support E-mail: [e-mail]
Sales Contact E-mail: [email protected]
Website: www.iS5Com.com

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Table of Content
CAUTION: LASER ......................................................................................... 9
CAUTION: SERVICE ..................................................................................... 9
CAUTION: PHYSICAL ACCESS ..................................................................... 9
Getting to Know Your Router......................................................................10
1.1 About the iSG4F Intelligent Flexible Secure Gateway................................................................10
1.2 Software Features ...............................................................................................................................10
1.3 Hardware Features .............................................................................................................................10
Hardware Overview......................................................................................11
2.1 Front Panel ..........................................................................................................................................11
2.2 Rear.......................................................................................................................................................12
2.3 Bottom .................................................................................................................................................12
2.4 Side view ..............................................................................................................................................12
2.5 Logical System Diagram ................................................................................................................... 13
Hardware Installation...................................................................................13
3.1 DIN Rail Mounting ...........................................................................................................................13
3.2 Panel Mounting Option ....................................................................................................................14
3.3 Chassis Ground Connection ............................................................................................................14
3.4 Power Connections ............................................................................................................................15
3.5 Console Connection ..........................................................................................................................16
Configuration ...............................................................................................16
5.1 Command Line Interface..................................................................................................................16
5.2 Supported Functionalities.................................................................................................................17
5.3 System Default State..........................................................................................................................18
5.4 Main Commands ................................................................................................................................18
System Version and Data Base...................................................................19
6.1 Configuration Database ....................................................................................................................19
6.2 OS VERSION ....................................................................................................................................20
6.3 Commands Hierarchy........................................................................................................................20
6.4 OS Upgrade Example........................................................................................................................21
6.5 Safe Mode............................................................................................................................................23

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6.5.1 Safe Mode View..................................................................................................................................23
6.5.2 SW Image Installation .......................................................................................................................25
Ethernet Port Interfaces ..............................................................................27
7.1 Commands Hierarchy........................................................................................................................28
7.2 Port Commands Example ................................................................................................................28
Login and Management...............................................................................30
8.1 Serial Console Port ..........................................................................................................30
8.1.1 Connecting to the Console Port .......................................................................................30
8.1.2 CLI Terminal Commands ................................................................................................31
8.2 Management ....................................................................................................................31
8.2.1 Default state ....................................................................................................................31
8.2.2 Commands Hierarchy ......................................................................................................31
8.2.3 Commands Description ...................................................................................................32
IP Interfaces..................................................................................................33
9.1 IP Interfaces ....................................................................................................................33
9.1.1 Interface Assignment Rules..............................................................................................34
9.1.2 IP interface id ..................................................................................................................35
9.1.3 IP interface VLAN id.......................................................................................................35
9.1.4 IP Interface Commands Hierarchy ...................................................................................35
9.1.5 IP Interface Commands Description................................................................................36
9.1.6 IP Interface Example .......................................................................................................36
9.1.7 DHCP Example...............................................................................................................39
Diagnostic.....................................................................................................40
10.1 System logs export ...........................................................................................................40
10.1.1 Commands Hierarchy ......................................................................................................40
10.1.2 Commands Description ...................................................................................................40
10.2 Capture Ethernet service traffic .......................................................................................40
10.2.1 Commands Hierarchy ......................................................................................................41
10.2.2 Commands Description ...................................................................................................41
10.2.3 Example ..........................................................................................................................42
10.3 Syslog ..............................................................................................................................43
10.3.1 Syslog Priority indicator ...................................................................................................43
10.3.2 Syslog Commands Hierarchy............................................................................................44
10.3.3 Syslog Output example ....................................................................................................44
Alarm Relay..................................................................................................45
11.1 Alarm Relay Wiring example ............................................................................................45

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11.2 Alarm Relay Contact Capabilities .....................................................................................46
11.3 Supported Alarms............................................................................................................46
11.3.1 SFP port state ..................................................................................................................46
11.3.2 L2 VPN state...................................................................................................................46
11.3.3 System up/down..............................................................................................................46
11.4 Default state ....................................................................................................................46
11.5 Commands Hierarchy ......................................................................................................46
11.6 Commands Description ...................................................................................................47
Clock and Time ............................................................................................48
12.1 Local Clock Commands Hierarchy...................................................................................48
12.2 Local Clock Commands Description................................................................................49
12.3 Set Local Clock Example .................................................................................................49
ACLs .............................................................................................................49
13.1 ACL Commands Hierarchy ..............................................................................................50
13.2 ACL Commands Descriptions .........................................................................................50
13.3 Configuration Example....................................................................................................53
QOS...............................................................................................................53
14.1 QOS Commands Hierarchy .............................................................................................53
14.2 QOS Commands Descriptions.........................................................................................53
NAT................................................................................................................54
15.1 NAT Networking.............................................................................................................54
15.2 NAT Commands Hierarchy .............................................................................................55
15.3 NAT Commands Description ..........................................................................................56
15.4 NAT Example .................................................................................................................56
OSPF.............................................................................................................59
16.1 OSPF Application Commands Hierarchy.........................................................................59
16.2 OSPF Application Commands Descriptions ....................................................................59
16.3 OSPF setup example........................................................................................................60
RIPv2.............................................................................................................66
17.1 RIP Commands Hierarchy ...............................................................................................66
17.2 RIP Commands Descriptions...........................................................................................67
Serial Ports and Services............................................................................68
18.1 Serial interfaces ................................................................................................................69
18.2 Services configuration structure .......................................................................................69

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18.3 Serial Commands Hierarchy .............................................................................................70
18.4 Serial Commands Description..........................................................................................71
18.5 Declaration of ports ........................................................................................................74
18.6 Serial Port Default State ...................................................................................................75
18.7 RS- 232 Port Pin Assignment...........................................................................................75
18.8 RS- 232 Serial cable..........................................................................................................76
18.9 Led States ........................................................................................................................76
Transparent Serial Tunneling......................................................................77
19.1 Concept of Operation .....................................................................................................77
19.2 Supported Network Topologies .......................................................................................78
19.2.1 Point to Point ..................................................................................................................78
19.2.2 Point to multipoint point .................................................................................................78
19.2.3 Multi Point to multipoint point ........................................................................................79
19.3 Modes of Operation ........................................................................................................79
19.3.1 Port Mode .......................................................................................................................80
19.3.2 Service Buffer Mode ........................................................................................................80
19.3.3 Service Connection Mode ................................................................................................81
19.4 Addressing Aware Modes.................................................................................................81
19.5 Reference drawing............................................................................................................82
19.6 Serial Traffic Direction.....................................................................................................83
19.6.1 Serial ports counters ........................................................................................................83
19.7 Allowed Latency ..............................................................................................................84
19.8 Tx Delay..........................................................................................................................84
19.9 Bus Idle Time ..................................................................................................................84
19.9.1 Byte mode .......................................................................................................................84
19.9.2 Frame mode.....................................................................................................................84
19.10 Example Serial Tunneling.................................................................................................85
Protocol Gateway IEC 101 to IEC 104 ........................................................86
20.1 Modes of Operation ........................................................................................................87
20.2 IEC101/104 Gateway properties IEC 101 .......................................................................88
20.3 IEC101/104 Gateway Configuration................................................................................89
20.4 Gateway 101/104 Configuration Flow .............................................................................90
20.5 Gateway 101/104 Commands Hierarchy..........................................................................92
20.6 Gateway 101/104 Commands..........................................................................................93
20.7 Example Gateway 101/104..............................................................................................96
Terminal Server............................................................................................98
21.1 Terminal Server service....................................................................................................98

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21.2 Terminal Server Commands Hierarchy...........................................................................100
21.3 Terminal Server Commands...........................................................................................101
21.4 Example local Service ....................................................................................................107
21.5 Example Networking .....................................................................................................111
Modbus Gateway .......................................................................................113
22.1 Modbus Gateway Implementation .................................................................................113
22.2 Modbus Gateway Commands Hierarchy ........................................................................113
22.3 Modbus Gateway Commands Description .....................................................................115
22.4 Modbus Gateway Example ............................................................................................116
DNP3 Gateway............................................................................................119
23.1 DNP3 Gateway Example...............................................................................................119
VPN .............................................................................................................120
24.1 Background ...................................................................................................................120
24.2 Modes supported ...........................................................................................................120
24.3 Layer 2 VPN..................................................................................................................120
24.4 Layer 3 DM-VPN ..........................................................................................................121
24.5 L2-VPN Commands Hierarchy ......................................................................................121
24.6 L2-VPN Commands ......................................................................................................122
24.7 L3 DM-VPN Commands Hierarchy...............................................................................122
24.8 L3 IPSec-VPN Commands Hierarchy ............................................................................123
24.9 IPSec .............................................................................................................................124
24.10 Applications...................................................................................................................124
24.11 Authentication Header (AH) ..........................................................................................124
24.12 Encapsulating Security Payload (ESP) ............................................................................124
24.13 Security Associations......................................................................................................124
24.14 ISAKMP........................................................................................................................125
24.15 IKE ...............................................................................................................................125
24.15.1 ISAKMP Phase 1...........................................................................................................125
24.15.2 ISAKMP Phase 2...........................................................................................................132
24.16 IPSec Command Association .........................................................................................133
24.17 IPSec Commands Hierarchy ..........................................................................................134
24.18 IPsec Commands ...........................................................................................................136
24.19 IPSec defaults ................................................................................................................142
GPRS/UMTS Interface................................................................................142
25.1 Overview .......................................................................................................................142
25.2 Method of operation .....................................................................................................143

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25.2.1 SIM card state................................................................................................................144
25.2.2 Backup and redundancy .................................................................................................146
25.3 GPRS/UMTS Commands Hierarchy .............................................................................147
25.4 GPRS/UMTS Commands Description ..........................................................................148
25.5 Default State ..................................................................................................................152
25.6 Led States ......................................................................................................................152
25.7 Example for retrieving the IMEI....................................................................................152
25.8 Example for SIM Status .................................................................................................153
VPN Setup Examples.................................................................................154
26.1 L2 VPN over Layer 3 cloud ...........................................................................................154
26.1.1 Network drawing ...........................................................................................................154
26.1.2 Configuration.................................................................................................................154
26.1.3 Implementing IPSec.......................................................................................................157
26.2 L3 IPSec VPN over Layer 3 cloud..................................................................................157
26.2.1 Network drawing ...........................................................................................................158
26.2.2 Configuration.................................................................................................................158
26.3 DM-VPN Setup.............................................................................................................163
26.3.1 Network drawing ...........................................................................................................163
26.3.2 Configuration.................................................................................................................164
26.4 DM-VPN over Cellular Setup ........................................................................................167
26.4.1 Network drawing ...........................................................................................................168
26.4.2 Configuration.................................................................................................................169
26.4.3 Testing the setup............................................................................................................172
26.4.4 Adding a terminal server service ....................................................................................175
26.4.5 Adding a transparent serial tunneling service..................................................................176
Application Aware Firewall........................................................................177
27.1 Firewall Service Flow .....................................................................................................177
27.2 Firewall Flow Illustration ...............................................................................................178
27.3 Supported Hardware......................................................................................................178
27.4 Configuration.................................................................................................................178
27.5 Example ........................................................................................................................179
27.6 Firewall Commands Hierarchy .......................................................................................180
27.7 Firewall Commands .......................................................................................................180
Technical Specifications ...........................................................................182

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FCC Statement and Cautions
Federal Communications Commission Radio Frequency Interference Statement
This equipment has been tested and found to comply with the limits for a Class A digital device
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment.
This equipment can generate, use, and radiate radio frequency energy. If not installed and used in
accordance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will at his/her own expense, be required to correct the
interference.
Caution: LASER
This product contains a laser system and is classified as a CLASS 1 LASER PRODUCT. Use of controls
or adjustments or performance of procedures other than those specified herein may result in
hazardous radiation exposure.
Caution: Service
This product contains no user-serviceable parts. Attempted service by unauthorized personnel shall
render all warranties null and void.
Changes or modifications not expressly approved by iS5 Communications Inc. could invalidate
specifications, test results, and agency approvals, and void the user's authority to operate the
equipment.
Should this device require service, please contact [email protected].
Caution: Physical Access
This product should be installed in a restricted access location. Access should only be gained by qualified
service personnel or users who have been instructed on the reasons for the restrictions applied at the
location, and any precautions that havebeen taken. Access must only be via the use of a tool or lock
and key, or other means of security, and is controlled by the authority responsible for the location.

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Getting to Know Your Router
1.1 About the iSG4F Intelligent Flexible Secure Gateway
The iSG4F Flexible Secure Gateway is designed for use in remote sites that require secure remote
connections over a public network (via serial or IP connection). A serial RTU/IED connected to an
iSG4F would communicate its data over a landline or a cellular public/private connection for those
sites that are remotely distributed and connected to a SCADA control center. The user data can
either be transparently encapsulated over an IP tunnel, or converted to an IP SCADA session using
the integrated SCADA gateway. Network connectivity is secured using a Layer 2 or Layer 3 VPN
with IPSec, as well a SCADA firewall for validating all traffic to the device. The iSG4F can be
managed centrally and conveniently by our powerful Windows utility called the iManage Software
Suite. The product is made from galvanized steel and has a wide operating temperature from -40°C
to 85°C suitable for the harshest of environments without the use of fans.
1.2 Software Features
Layer 2 and Layer 3 VPN with IPSec
SCADA firewall for validating all traffic to the device
Supports Layer 3 protection
Supports Gateway Translation for IES 101, IEC 104, Modbus and DNP3
ACL (Access Control Lists)
NAT (Network Address Translation)
OSPF (Open Shortest Path First) protocol
RIPv2 (Routing Information Protocol)
Transparent Serial Tunneling
Terminal Server service for transposing of a TCP session to serial session
Modbus RTU to Modbus TCP
GPRS/UMTS Interface
1.3 Hardware Features
Network Uplink over Ethernet or Cellular
Supports 2 x RS232 ports, or 1 x RS232 and 1x RS485 port (RJ45 sockets)
Supports 1x 10/100 Base (TX) and 1 x 1000 Base (X) Ethernet Ports
Supports 2 SIM Cellular Interfaces for connecting to remote sites over a cellular network
Console Port
Dual Redundant Power Input
Wide Operating Temperature: -40 to 85oC

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Storage Temperature: -40 to 85oC
Operating Humidity: 5% to 95%, non-condensing
DIN Rail or Wall mount option
Chassis: IP-40 Galvanized Steel
Dimensions(W x D x H) : 127 mm(W)x 163.6 mm( D )x 154.2 mm(H) (5 in x 6.44 in x 6.07 in)
Hardware Overview
2.1 Front Panel
Product description:
Port
Description
Console
RJ45, EIA232 VT-100 compatible port
E1
Ethernet Port 1, 1 X 10/100/1000 Base- T(X) RJ45 port
E2
Ethernet Port 2, 1 x 100/1000Base-X on SFP port (SFP located on
bottom side)
S1, S2
Serial port 1 and Serial port 2, RS232 Serial RJ45 Ports
Optional: 1 X RS232 Serial RJ45 Port and 1 X RS485 Serial RJ45 Port
Cellular
Dual SIM GPRS/UMTS

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2.2 Rear
The image below shows the DIN bracket on the back of the router. Circled in red are the mounting holes
for the Panel bracket mounting option.
2.3 Bottom
The image below shows the 10 position terminal block and ground lug of the iSG4F.
2.4 Side view
The image below shows the side of the iSG4F with the product label displaying router information. Circled
in red are the side mounting holes for the Panel bracket mounting option.

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2.5 Logical System Diagram
Hardware Installation
3.1 DIN Rail Mounting
Each router has a DIN-Rail bracket on the rear panel that allows the router to be mounted on
a DIN Rail. To mount the iSG4F on a DIN Rail follow the steps below.
1. Slant the top of the router back and hook the top of the DIN bracket onto the top of the
DIN rail.
2. Push the bottom of the router towards the DIN Rail until in clicks in to place.

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Note: To release the router from the DIN Rail, pull the latch at the bottom of the router down
to release the DIN bracket from the DIN Rail. While pulling the latch down, pull the bottom of
the router away from the DIN Rail. The router will now lift off of the DIN rail.
3.2 Panel Mounting Option
The router can also has an option to be panel or wall mounted. The following steps show how
to mount the router on a panel or wall.
1. Install the Panel mounting hardware onto the router. The user can choose rear mounting
or side mounting. Note: To avoid damage to the unit please use the 4 screws provided to
attach the panel mount brackets onto the router.
2. Use the holes in the brackets to secure the router to a wall or panel.
3.3 Chassis Ground Connection
The iSG4F chassis ground connection uses a #6-32 Screw. We recommend terminating the ground
connection using a #6 ring lug, and a torque setting of 15 in.lbs (1.7Nm). The red outline indicates the
location of the chassis ground.

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3.4 Power Connections
The iSG4F router supports dual redundant power supplies (PWR1 and PWR2). There are 3 options for
each power supply:
1. LV: Dual Input 10-48VDC
2. MV: Dual Input 36-75VDC
3. HV: Single Input 85-264VAC or 88-370VDC.
The label on the terminal block will indicate the accepted voltage range for PWR1 and PWR2. Positions 2,
4 and 6 are all for ground connections (connected via a removable jumper) and can be used for any ground
connection.
The Phillips Screw Terminal Block has Phillips screws with compression plates, allowing either bare wire
connections or crimped terminal lugs. The use of #6 size ring lugs is recommended to ensure secure and
reliable connections under severe shock or vibration. The terminal block comes with a safety cover which
must be removed before connecting any wires. This cover must be re-attached after wiring to ensure
personnel safety.
The table below lists the connections for the terminal block.
Terminal
Number
Description
Connection
1
- PWR1 (+/L) –Line or Positive
- PWR1 (+): Positive
Connected to the line or positive
terminal of the first power source.
2
- PWR1 –Ground
Power supply 1 ground connection.
3
- PWR1 (-/N) –Neutral or Negative
- PWR1 (-) : Negative
Connected to the neutral or negative
terminal of the first power source.
4
–Chassis Ground
Connected to the safety ground terminal
for AC units or the ground bus for DC
inputs. Chassis ground connects to both
power supply surge grounds via a
removable jumper.
5
- PWR2 (+/L) –Line or Positive
Connected to the line or positive

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- PWR2 (+): Positive
terminal of the second power source.
6
- PWR2 –Ground
Power supply 2 ground connection.
7
- PWR2 (-/N) –Neutral or Negative
- PWR2 (-) : Negative
Connected to the neutral or negative
terminal of the second power source.
8
RLY NO
Failsafe relay, normally open contact.
9
RLY CM
Failsafe relay, common contact.
10
N/C
No connection
3.5 Console Connection
To manage the router via the console port, connect the console cable (provided with the iSG4F) from a PC
serial port (DB9) to the Console port on the front of the router (RJ45).
Configuration
5.1 Command Line Interface
The CLI (Command Line Interface) is used to configure the iSG4F from a console attached to
the serial port of the router or from a remote terminal using SSH. The following table lists the
CLI environments and modes.
100-240VAC rated equipment: A 250VAC appropriately rated circuit
breaker must be installed.
Equipment must be installed according to the applicable country wiring
codes.
When equipped with a HI voltage power supply and DC backup,
independent sources can be used to power the product for greater
redundancy.
88-300VDC rated equipment: A 300VDC appropriately rated circuit breaker
must be installed.
A circuit breaker is not required for DC power supply voltages of 10-48VDC.
For Dual DC power supplies, separate circuit breakers must be installed and
separately identified.
Equipment must be installed according to the applicable country wiring
codes.

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Command Mode
Access Method
Prompt
Exit Method
Global
Configuration
Environment
(GCE)
Following user log in this
mode is available to the user.
iSG4F#
To exit this mode
would mean the user
to log out from the
system.
Use the command
‘exit’
Global Hierarchy
Configuration
From the Global
Configuration mode
command you may drill down
to specific feature sub tree.
Example is shown here for
router configuration sub tree.
router/
To exit one level back,
the ‘..’ (Two dots) is
used.
Application
Configuration
Environment
(ACE)
The ACE is an alternative
configuration environment for
supported features
ACE#
To exit back to the GCE
mode use the ‘exit’
command.
ACE Config
Use the command ‘configure’
to access the ACE
Configuration mode
ACE(config)#
To exit back to the ACE
mode use the ‘exit’
command.
Application
Hierarchy
Configuration
Access the target feature. For
example :
‘interface vlan 1’
ACE(config-if-eth1.1)#
To return one level up
use ‘exit’.
To return to the ACE
use ‘end’.
5.2 Supported Functionalities
The iSG4F is a feature rich industrial router supporting:
L3 dynamic and static Routing
SCADA services
Firewall
Secure networking
Supported features include:
Ethernet Ports
Serial Ports
Cellular Modem
VPN
TFTP
OSPF

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Vlan Tagging
IPSec
Management
Authentication
SCADA Gateway
SCADA Firewall
QOS
Serial Services
Terminal Services
NAT
RIP
DHCP Client
5.3 System Default State
The following table details the default state of features and interfaces.
Feature
Default state
Ethernet Ports
All ports are enabled
Serial interfaces
Disabled
Cellular modem
Disabled
Layer 3 interface
No default IP
DHCP Client
disabled
SSH
Disabled
Telnet
Enabled
Syslog
Disabled
ACLs
Disabled
Firewall
Disabled
VPN
Disabled
5.4 Main Commands
The Application Configuration Environment list of main CLI commands is shown below.
+ root
+ Router {interface | route |static |ospf |ip |rip}
+ cellular {connection | continuous-echo| disable |enable| modem|
network| refresh| settings| show| wan}
+ commit
+capture {delete |export |help |show |start |stop}
+ date
+ discrete {service| show}
+ dns {host| resolver}
+ exit
+ firewall {log| profile| tcp| serial}

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+ idle-timeout
+ iec101-gw {cnt| operation| config iec-101| config iec-104| config
gw| show}
+ ipsec {enable| disable| isakmp update| policy| preshared| log-show| show|
show-sa proto}
+ ipsec-vpn tunnel {show | create | remove}
+ vpn {gre| ipsec| l2}
+ ping
+ reload {cancel| schedule| show}
+ schedule {add |show |remove}
+ serial {card |port| local-end-point| remote-end-point}
+ ssh
+ syslog show
+ telnet
+ terminal-server {admin-status| counters| settings| connections| serial-tunnel|
telnet-service}
+ trace
+ version
System Version and Data Base
6.1 Configuration Database
By default User configuration is saved in a file called iSG4F.conf. Configuration saved in this
file will be available at system startup. If this file is deleted, the system will boot with the
iSG4Fnvram.txt file holding factory configuration.
User Configuration is taking effect immediately upon entering. No specific COMMIT command
is required.
The user can as well save his running configuration in a file with a chosen name for backup
and boot the system with this file when needed.
Multiple running configuration files can be saved with different names locally on the flash or
a TFTP /SFTP server.
However, configuration which will not be saved as bellow example will not be available
following system reboot.
User configuration is saved (to the iSG4F.conf) using the following command:
iSG4F# commit

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Building configuration...
[OK]
Removing all user configuration and setting the router to its factory defaults is done by
erasing the iSG4F.conf with the following command:
iSG4F# delete startup-cfg
iSG4F# reload
NOTE
iSG4F.conf and iSG4Fnvram.txt files are not accessible for the user to do file
operations on (copy ,rename and such)
6.2 OS VERSION
Updating of system version is available by TFTP/SFTP server or safe mode.
Available OS files on the router can be seen with command showed below.
Running OS file is marked with “active”.
iSG4F#os-image show-list
Versions list:
IS5_iSG4F_4.0.02.08.tar (active)
NOTE
The iSG4F can hold at its disk maximum two OS image files. Before
downloading a new OS file to the router make sure the iSG4F has on it only one
(the active) file. If needed, delete the unused file before attempting to
download new.
6.3 Commands Hierarchy
+ Root
- commit
+delete
- diagnostics
- logs