Hitron CGN User manual

USER’S GUIDE
CGN RESIDENTIAL CABLE MODEM
VERSION 4.0 - APR 2013

ABOUT THIS USER’S GUIDE
Version 2.0, February 2012. Copyright 2012 Hitron Technologies
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HITRON CGN USER’S GUIDE
ABOUT THIS USER’S
GUIDE
INTENDED AUDIENCE
This manual is intended for people who want to configure the CGN’s features via its
Graphical User Interface (GUI).
HOW TO USE THIS USER’S GUIDE
This manual contains information on each the CGN’s GUI screens, and describes
how to use its various features.
Use the Introduction (page 12) to see an overview of the topics covered in this
manual.
Use the Table of Contents (page 7), List of Figures (page 10) and List of Tables
(page 11) to quickly find information about a particular GUI screen or topic.
Use the Index (page 112) to find information on a specific keyword.
Use the rest of this User’s Guide to see in-depth descriptions of the CGN’s
features.
RELATED DOCUMENTATION
Quick Installation Guide: see this for information on getting your CGN up and
running right away. It includes information on system requirements, package
contents, the installation procedure, and basic troubleshooting tips.
Online Help: each screen in the CGN’s Graphical User Interface (GUI) contains
a Help button. Click this button to see additional information about configuring
the screen.

ABOUT THIS USER’S GUIDE
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DOCUMENT CONVENTIONS
This User’s Guide uses various typographic conventions and styles to indicate
content type:
Bulleted paragraphs are used to list items, and to indicate options.
1 Numbered paragraphs indicate procedural steps.
NOTE: Notes provide additional information on a subject.
Warnings provide information about actions that could harm you or your
device.
Product labels, field labels, field choices, etc. are in bold type. For example:
A mouse click in the Graphical User Interface (GUI) is denoted by a right angle
bracket ( > ). For example:
means that you should click Settings in the GUI, then Advanced settings.
A key stroke is denoted by square brackets and uppercase text. For example:
CUSTOMER SUPPORT
For technical assistance or other customer support issues, please consult your Hitron
representative.
Select UDP to use the User Datagram Protocol.
Click Settings > Advanced Settings.
Press [ENTER] to continue.

ABOUT THIS USER’S GUIDE
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DEFAULT CREDENTIALS
The CGN’s default login credentials are as follows. For more information, see
Logging into the CGN on page 22.
Copyright 2012 Hitron Technologies. All rights reserved. All trademarks and
registered trademarks used are the properties of their respective owners.
DISCLAIMER: The information in this User’s Guide is accurate at the time of writing.
This User’s Guide is provided “as is” without express or implied warranty of any kind.
Neither Hitron Technologies nor its agents assume any liability for inaccuracies in this
User’s Guide, or losses incurred by use or misuse of the information in this User’s
Guide.
Table 1: Default Credentials
Username cusadmin
Password password

COMPLIANCES
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COMPLIANCES
FCC INTERFERENCE STATEMENT
This equipment has been tested and found to comply with the limits for a Class B
digital device pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against radio interference in a commercial
environment.
This equipment can generate, use and radiate radio frequency energy and, if not
installed and used in accordance with the instructions in this manual, may cause
harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause interference, in
which case the user, at his own expense, will be required to take whatever measures
are necessary to correct the interference. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one
of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
The device complies with Part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
FCC Caution: Any changes or modifications not expressly approved by the party
responsible for compliance could void the user’s authority to operate this equipment.
IEEE 802.11b or 802.11g operation of this product in the U.S.A is firmware-limited to
channels 1 through 11.
IMPORTANT NOTE:

COMPLIANCES
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FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment. This equipment should be installed and operated with
minimum distance 20cm between the radiator & your body.
This transmitter must not be co-located or operating in conjunction with any other
antenna or transmitter.
The availability of some specific channels and/or operational frequency bands are
country dependent and are firmware programmed at the factory to match the
intended destination. The firmware setting is not accessible by the end user.
Note to CATV System Installer - The cable distribution system should be grounded
(earthed) in accordance with ANSI/NFPA 70, the National Electrical Code (NEC), in
particular Section 820.93, Grounding of Outer Conductive Shield of a Coaxial Cable.
107 SMCD3G3-CCR 4-Port Gateway Administrator Manual

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About This User’s Guide ................................................................ 2
Compliances .................................................................................... 5
Introduction ................................................................................... 12
1.1 CGN Overview .................................................................................. 12
1.1.1 Key Features ............................................................................ 13
1.2 Hardware Connections ...................................................................... 14
1.3 LEDs ................................................................................................. 17
1.4 IP Address Setup .............................................................................. 20
1.4.1 Manual IP Address Setup ......................................................... 21
1.5 Logging into the CGN ........................................................................ 22
1.6 GUI Overview .................................................................................... 23
1.7 Resetting the CGN ............................................................................ 24
Setup Wizard ................................................................................. 26
2.1 PASSWORD ..................................................................................... 26
2.2 WIRELESS ........................................................................................ 27
2.3 SUMMARY ........................................................................................ 28
Status ............................................................................................. 29
3.1 Cable Overview ................................................................................. 29
3.1.1 DOCSIS .................................................................................... 29
3.1.2 IP Addresses and Subnets ....................................................... 29
3.1.2.1 IP Address Format ........................................................... 30
3.1.2.2 IP Address Assignment .................................................... 30
3.1.2.3 Subnets ............................................................................ 31
3.1.3 DHCP ........................................................................................ 32
3.1.4 DHCP Lease ............................................................................. 32
3.1.5 MAC Addresses ........................................................................ 33
3.1.6 Routing Mode ........................................................................... 33
3.1.7 Configuration Files .................................................................... 34
3.1.8 Downstream and Upstream Transmissions .............................. 34
3.1.9 Cable Frequencies .................................................................... 34

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3.1.10 Modulation .............................................................................. 34
3.1.11 TDMA, FDMA and SCDMA .................................................... 35
3.2 The System Info Screen .................................................................... 35
3.3 The Initialization Screen .................................................................... 37
3.4 The CM Status Screen ...................................................................... 38
3.5 The Password Screen ....................................................................... 41
WAN/LAN ....................................................................................... 43
4.1 WAN/LAN Overview .......................................................................... 43
4.1.1 WAN and LAN .......................................................................... 43
4.1.2 LAN IP Addresses and Subnets ............................................... 44
4.1.3 DNS and Domain Suffix ............................................................ 44
4.1.4 Debugging (Ping and Traceroute) ............................................ 44
4.2 The IP Screen ................................................................................... 45
4.3 The Shared Media Screen ................................................................ 49
4.4 The Debug Screen ............................................................................ 50
4.5 The Backup Screen ........................................................................... 51
Firewall ........................................................................................... 53
5.1 Firewall Overview .............................................................................. 53
5.1.1 Firewall ..................................................................................... 53
5.1.2 Intrusion detection system ........................................................ 54
5.1.3 Ping ........................................................................................... 54
5.1.4 MAC Filtering ............................................................................ 54
5.1.5 IP Filtering ................................................................................. 54
5.1.6 Port Forwarding ........................................................................ 55
5.1.7 Port Triggering .......................................................................... 55
5.1.8 DMZ .......................................................................................... 55
5.2 The Firewall Options Screen ............................................................. 55
5.3 The Filter Setting Screen .................................................................. 57
5.3.1 Adding or Editing an IP Filtering Rule ....................................... 62
5.4 The Forwarding Screen ..................................................................... 64
5.4.1 Adding or Editing a Port Forwarding Rule ................................ 66
5.5 The Port Triggering Screen ............................................................... 68
5.5.1 Adding or Editing a Port Triggering Rule .................................. 70

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5.6 The DMZ Screen ............................................................................... 71
Parental Control ............................................................................ 73
6.1 Parental Control Overview ................................................................ 73
6.1.1 Website Blocking ...................................................................... 73
6.2 The Website Blocking Screen ........................................................... 73
6.3 The Scheduling Screen ..................................................................... 76
Wireless ......................................................................................... 78
7.1 Wireless Overview ............................................................................ 78
7.1.1 Wireless Networking Basics ..................................................... 78
7.1.2 Architecture ............................................................................... 78
7.1.3 Wireless Standards ................................................................... 79
7.1.4 Service Sets and SSIDs ........................................................... 79
7.1.5 Wireless Security ...................................................................... 80
7.1.5.1 WPS ................................................................................. 80
7.1.6 WMM ........................................................................................ 81
7.2 The Basic Settings Screen ................................................................ 81
7.3 IP Setting ........................................................................................... 84
7.4 The WPS & Security Screen ............................................................. 85
7.5 The Access Control Screen .............................................................. 90
Troubleshooting ............................................................................ 94
INDEX ............................................................................................. 97

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Figure 1: Application Overview ...........................................................................13
Figure 2: Hardware Connections ........................................................................15
Figure 3: LEDs ....................................................................................................18
Figure 4: Login ....................................................................................................23
Figure 5: GUI Overview ......................................................................................24
Figure 6: Setup Wizard > Password ...................................................................27
Figure 7: Setup Wizard > Wireless .....................................................................28
Figure 8: The Status > System Info Screen ........................................................36
Figure 9: The Status > Initialization Screen ........................................................38
Figure 10: The Status > CM Status Screen ........................................................39
Figure 11: The Status > Password Screen .........................................................42
Figure 12: The WAN/LAN > IP Screen (Assign WAN IP Automatically) .............46
Figure 13: The WAN/LAN > IP Screen (Assign WAN IP Manually) ....................47
Figure 14: The WAN/LAN > Shared Media Screen ............................................49
Figure 15: The WAN/LAN > Debug Screen ........................................................51
Figure 16: The WAN/LAN > Backup Screen .......................................................52
Figure 17: The Firewall > Firewall Options Screen .............................................56
Figure 18: The Firewall > Filter Setting Screen ..................................................58
Figure 19: The Firewall > Filter Settings > Add/Edit Screen ...............................62
Figure 20: The Firewall > Forwarding Screen .....................................................64
Figure 21: The Firewall > Forwarding > Add/Edit Screen ...................................66
Figure 22: The Firewall > Port Triggering Screen ...............................................68
Figure 23: The Firewall > Port Triggering > Add/Edit Screen .............................70
Figure 24: The Firewall > DMZ Screen ...............................................................72
Figure 25: The Parental Control > Web Site Blocking Screen ............................74
Figure 26: The Parental Control > Scheduling Screen .......................................76
Figure 27: The Wireless > Basic Settings Screen ..............................................82
Figure 28: The Wireless > IP Setting Screen ......................................................84
Figure 29: The Wireless > WPS & Security Screen ............................................86
Figure 30: WPS PIN ............................................................................................87
Figure 31: The Wireless > Access Control Screen .............................................91

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Table 1: Default Credentials ................................................................................4
Table 2: Hardware Connections ........................................................................16
Table 3: LEDs ....................................................................................................18
Table 4: GUI Overview .......................................................................................24
Table 5: Private IP Address Ranges ..................................................................30
Table 6: IP Address: Decimal and Binary ..........................................................31
Table 7: Subnet Mask: Decimal and Binary .......................................................31
Table 8: The Status > System Info Screen ........................................................36
Table 9: The Status > CM Status Screen ..........................................................39
Table 10: The Status > Password Screen .........................................................42
Table 11: The WAN/LAN > IP Screen ...............................................................47
Table 12: The WAN/LAN > Shared Media Screen ............................................50
Table 13: The WAN/LAN > Debug Screen ........................................................51
Table 14: The LAN > Backup Screen ................................................................52
Table 15: The Firewall > Firewall Options Screen .............................................56
Table 16: The Firewall > Filter Setting Screen ...................................................59
Table 17: The Firewall > Filter Settings > Add/Edit Screen ...............................63
Table 18: The Firewall > Forwarding Screen .....................................................64
Table 19: The Firewall > Forwarding > Add/Edit Screen ...................................67
Table 20: The Firewall > Port Triggering Screen ...............................................68
Table 21: The Firewall > Port Triggering > Add/Edit Screen .............................70
Table 22: The Firewall > DMZ Screen ...............................................................72
Table 23: The Parental Control > Web Site Blocking Screen ............................74
Table 24: The Parental Control > Scheduling Screen .......................................77
Table 25: The Wireless > Basic Settings Screen ...............................................82
Table 26: The Wireless > IP Setting ..................................................................84
Table 27: The Wireless > WPS & Security Screen ............................................86
Table 28: The Wireless > Access Control Screen .............................................91

INTRODUCTION
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1
INTRODUCTION
This chapter intoduces the CGN and its GUI (Graphical User Interface). It contains
the following sections:
CGN Overview on page 12
Hardware Connections on page 14
LEDs on page 17
IP Address Setup on page 20
Logging into the CGN on page 22
GUI Overview on page 23
Resetting the CGN on page 24
1.1 CGN OVERVIEW
Your CGN is a NAT-capable cable modem and wireless access point that allows you
to connect your computers, wireless devices, and other network devices to one
another, and to the Internet via the cable connection.
Computers with a wired connection to the CGN are on the Local Area Network (LAN),
computers with a wireless connection to the CGN are on the Wireless Local Area
Network (WLAN) and the CGN connects to the service provider over the Wide Area
Network (WAN).

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Figure 1: Application Overview
1.1.1 KEY FEATURES
The CGN provides:
Internet connection to cable modem service via CABLE port (F-type RF
connector)
Local Area Network connection via four 10/100/1000 Mbps (megabits per
second) Ethernet ports
Dynamic Host Configuration Protocol (DHCP) for devices on the LAN
LAN troubleshooting tools (Ping and Traceroute)
IEEE 802.11b/g/n wireless MIMO (Multiple-In, Multiple-Out) networking, allowing
speeds of up to 450Mbps
Wireless security: WEP, WPA-PSK and WPA2-PSK encryption, Wifi Protected
Setup (WPS) push-button and PIN configuration, MAC filtering,
Wired security: stateful inspection firewall with intrusion detection system, IP and
MAC filtering, port forwarding and port triggering, De-Militarized Zone (DMZ)
and event logging
Parental control: scheduled website blocking and access logs

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Settings backup and restore
Secure configuration interface, accessible by Web browser
1.2 HARDWARE CONNECTIONS
This section describes the CGN’s physical ports and buttons.

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Figure 2: Hardware Connections

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Table 2: Hardware Connections
WPS PBC Press this button to begin the WiFi Protected Setup
(WPS) Push-Button Configuration (PBC) procedure.
Press the PBC button on your wireless clients in the
coverage area within two minutes to enable them to join
the wireless network.
See WPS on page 80 for more information.
Reset Use this button to reboot or reset your CGN.
Press the button and hold it for less than five seconds
to reboot the CGN. The CGN restarts, using your
existing settings.
Press the button and hold it for more than five
seconds to delete all user-configured settings and
restart the CGN using its factory default settings. See
Resetting the CGN on page 24 for more information
on resetting the CGN.
NOTE: Unless you previously backed-up the CGN’s
configuration settings prior to resetting the CGN,
the settings cannot be recovered.
USB The CGN provides one USB 2.0 host port, allowing you
to plug in a USB flash disk for mounting and sharing
through the LAN interfaces via the Samba protocol
(network neighborhood).
The CGN supports the following Windows file systems:
FAT16
FAT32
NTFS
USB devices must not drain more than 500mA
from the USB port. USB devices requiring
more than 500mA should be provided with
their own power source(s).
LAN1 Use these ports to connect your computers and other
network devices, using Category 5 or 6 Ethernet cables
with RJ45 connectors.
LAN2
LAN3
LAN4

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1.3 LEDS
This section describes the CGN’s LEDs (lights).
CABLE Use this to connect to the Internet via an F-type RF
cable.
POWER Cable modem is plugged in to an electrical outlet and is
and receiving power.
Table 2: Hardware Connections

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Figure 3: LEDs
Table 3: LEDs
LED STATUS DESCRIPTION
WPS Off The WPS is not enabled.
Green, steady The WPS is enabled.
Red, blinking Error: Some error occurred which was not related to
security, such as failed to find any partner or
protocol prematurely aborted.
Session Overlap Detected: Protocol detected
overlapping operation could be a security risk.
Orange, blinking The protocol is searching for a partner, connecting,
or exchanging network parameters
WIRELESS Off The wireless network is not enabled.
Green, steady The wireless network is enabled, and no data is
being transmitted or received over the wireless
network.
Green, blinking The wireless network is enabled, and data is being
transmitted or received over the wireless network.

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USB Off The CGN is not linked up USB.
Green, steady The CGN has successfully linked up USB.
LAN/ Front Off No device is connected to any LAN port.
Green, blinking A device is connected to the LAN port via a
Ethernet link, and is transmitting or receiving data.
Green, steady A device has successfully connected to the LAN
port via a Ethernet link.
LAN/ Back Off No device is connected to the relevant LAN port.
Orange, blinking A device is connected to the relevant LAN port via a
Fast Ethernet (10/100Mbps) link, and is transmitting
or receiving data.
Orange, steady A device is connected to the relevant LAN port via a
Fast Ethernet (10/100Mbps) link, but is not
transmitting or receiving data.
Green, blinking A device is connected to the relevant LAN port via a
Gigabit Ethernet (1000Mbps) link, and is
transmitting or receiving data.
Green, steady A device is connected to the relevant LAN port via a
Gigabit Ethernet (1000Mbps) link, but is not
transmitting or receiving data.
Status Green, Blinking The CGN’s cable modem is registering with the
service provider’s CMTS.
Green The CGN’s cable modem has successfully
registered with the service provider and is ready for
data transfer.
US Green, blinking The CGN is searching for an upstream frequency
on the CABLE connection.
Green, steady The CGN has successfully located and locked onto
an upstream frequency on the CABLE connection.
Blue, steady The CGN is engaged in channel bonding on the
upstream connection.
Off There is no upstream activity on the CABLE
connection.
Table 3: LEDs

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When you turn on the CGN, the LEDs light up in the following order:
Power
US
DS
Status
The ETH 1~4 LEDs light up as soon as there is activity on the relevant port, and
the WIRELESS LED lights up once the wireless network is ready.
USB
WIRELESS
1.4 IP ADDRESS SETUP
Before you log into the CGN’s GUI, your computer’s IP address must be in the same
subnet as the CGN. This allows your computer to communicate with the CGN.
NOTE: See IP Addresses and Subnets on page 29 for background information.
The CGN has a built-in DHCP server that, when active, assigns IP addresses to
computers on the LAN. When the DHCP server is active, you can get an IP address
automatically. The DHCP server is active by default.
DS Green, blinking The CGN is searching for a downstream frequency
on the CABLE connection.
Green, steady The CGN has successfully located and locked onto
a downstream frequency on the CABLE
connection.
Blue, steady The CGN is engaged in channel bonding on the
downstream connection.
Off There is no downstream activity on the CABLE
connection.
Power Green Cable modem is plugged in to an electrical outlet
and is and receiving power
Off The CGN is not receiving power.
Table 3: LEDs