Comtrend NL-3112U Users Manual
NexusLink 3112u
Multi-DSL Bonded Router
User Manual
Version A1.1, June 04, 2014
261103-009
1
Preface
This manual provides information related to the installation and operation of this
devic e . The individual r eading this manual is presumed to have a basic
understanding of telecommunications terminology and concepts.
If you find the product to be inoperable or malfunctioning, please conta ct technical
support for immediate service by email at INT-support@comtrend.com
For product update, new product release, manual revision, or software upgrades,
please visit our website at http://www.comtrend.com
Important Safety Instructions
With reference to u np acking, installation, use, and maintenance of your electronic
device, the following basic guidelines are recommended:
• Do not use or install this product near water, to avoid fire or shock hazard. For
example, near a bathtub, kitchen sink o r laundr y tub, or near a s wimming poo l.
Also, do not expose the equipment to rain or damp ar eas (e.g. a wet basement).
• Do not connect the power supply cord on elevated surfaces. Allow it to lie freely .
There should be no obstructions in its path and no hea vy items should be placed
on the cord. In addition, do not walk on, step on, or mistreat the cor d.
• Use only the power cord and adapter that are shipped with this device.
• T o safeguard the equipment against overheating, make sure that all openings in
the unit that offer exposure to air are not blocked.
• Avoid using a telephone (other than a cordless type) during an electr ical storm.
There may be a remote risk of electric shock from lightening. Also, do not use
the telephone to report a gas leak in the vicinity of the leak.
• Never install telephone wiring during stormy weather conditions.
CAUTION:
To reduce the risk of fire, use only No. 26 AWG or larger
telecommunication line cord.
Always disconnect all telephone lines from the wall outlet before servicing
or disassembling this equipment.
WARNING
Disconnect the power line from the device before servicing.
Power supply specifications are clearly stated in Appendix C –
Specifications.
2
Copyright
Copyright©2014 Comtrend Corporation. All rights reserved. The information
contained herein is proprietar y to Comtrend Corporation. No part of this document
may be translated, tr anscr ibed, reprod uced, in any fo rm, or by any means without
prior written consent of Comtrend Corporation.
This program is free software: you can redistribute it and/or modify it unde r the
terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later version.
This program is distributed in the ho p e that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTIC ULAR PURPOSE. See the GNU General Public License for more
details.
Y ou should have re ceived a copy of the GNU General Public License
along with this program. If not, see http://www.gnu.org/licenses/
NOTE: This document is subject to change without notice.
Protect Our Environment
This symbol indicates that when the equipment has reached the end of
its useful life, it must be taken to a recycling centre and processed
separate from domestic waste.
The cardboard box, the plastic co ntained in the packaging, and the par ts that make
up this router can be recycled in accordance with regionally established regulations.
Never dispose of this electronic equipment along with your household waste; you
may be subject to penalties or sanctions under the law. Instead, please be
responsible and ask for disposal instructions from your local government.
3
Table of Contents
CHAPTER 1 INTRODUCTION ........................................................................................................... 6
1.1 FEATURES ........................................................................................................................................ 7
CHAPTER 2 INSTALLATION ............................................................................................................. 8
2.1 HARDWARE SETUP ........................................................................................................................... 8
2.2 HARDWARE SETUP ........................................................................................................................... 8
2.3 LED INDICATORS........................................................................................................................... 10
CHAPTER 3 WEB USER INTERFACE ............................................................................................ 12
3.1 DEFAULT SETTINGS ....................................................................................................................... 12
3.2 IP CONFIGURATION ........................................................................................................................ 13
3.3 LOGIN PROCEDURE ........................................................................................................................ 15
CHAPTER 4 DEVICE INFORMATION ........................................................................................... 17
4.1 WAN ............................................................................................................................................. 19
4.2 STATISTICS ..................................................................................................................................... 20
4.2.1 LAN Statistics.................................................................................................................. 20
4.2.2 WAN Service ................................................................................................................... 21
4.2.3 XTM Statistics ................................................................................................................. 22
4.2.4 xDSL Statistics ................................................................................................................ 23
4.3 ROUTE ........................................................................................................................................... 28
4.4 ARP ............................................................................................................................................... 29
4.5 DHCP............................................................................................................................................ 29
4.6 NAT SESSION ................................................................................................................................ 31
4.7 IGMP PROXY ................................................................................................................................ 32
4.8 IPV6 .............................................................................................................................................. 33
4.8.1 IPv6 Info ................................................................................................................................ 33
4.8.2 IPv6 Neighbor ....................................................................................................................... 34
4.8.3 IPv6 Route ............................................................................................................................. 35
4.9 NETWORK MAP ............................................................................................................................. 36
4.10 WIRELESS .................................................................................................................................... 37
4.10.1 Station Info .......................................................................................................................... 37
4.10.2 Site Survey ........................................................................................................................... 38
CHAPTER 5 BASIC SETUP............................................................................................................... 39
5.1 WAN SETUP ................................................................................................................................... 40
5.1.1 WAN Service Setup ................................................................................................................ 41
5.2 NAT .............................................................................................................................................. 42
5.2.1 Virtual Servers ................................................................................................................ 42
5.2.2 Port Triggeri ng ............................................................................................................... 44
5.2.3 DMZ Host ....................................................................................................................... 46
5.2.4 IP Addr es s Map .............................................................................................................. 47
5.2.5 IPSEC ALG ..................................................................................................................... 49
5.2.6 SIP ALG .......................................................................................................................... 50
5.3 LAN .............................................................................................................................................. 51
5.3.1 LAN IPv6 Autoconfig ............................................................................................................. 54
5.3.2 Static IP Neighbor ................................................................................................................. 57
5.3.3 UPnP ..................................................................................................................................... 58
5.4 WIRELESS ...................................................................................................................................... 59
5.4.1 Basic ...................................................................................................................................... 59
5.4.2 Security .................................................................................................................................. 61
5.5 PARENTAL CONTROL...................................................................................................................... 64
5.5.1 Time Restriction .............................................................................................................. 64
5.5.2 URL Filter....................................................................................................................... 65
5.6 HOME NETWORKING ...................................................................................................................... 67
5.6.1 Print Server ........................................................................................................................... 67
5.6.2 DLNA ..................................................................................................................................... 67
5.6.3 Storage Se r vi ce ...................................................................................................................... 68
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CHAPTER 6 ADVANCED SETUP ..................................................................................................... 69
6.1 AUTO-DETECTION SETUP ............................................................................................................... 69
6.2 SECURITY ...................................................................................................................................... 74
6.2.1 IP Filtering ..................................................................................................................... 74
6.2.2 MAC Filtering................................................................................................................. 77
6.3 QUALITY OF SERVICE (QOS) .......................................................................................................... 79
6.3.1 QoS Queue Setup ............................................................................................................ 80
6.3.2 QoS Policer .................................................................................................................... 82
6.3.3 QoS Classification .......................................................................................................... 84
6.4 ROUTING ....................................................................................................................................... 86
6.4.1 Default Ga te wa y ............................................................................................................. 86
6.4.2 Static Route ..................................................................................................................... 87
6.4.3 Policy Ro uting ................................................................................................................ 88
6.4.4 RIP .................................................................................................................................. 89
6.5 DNS .............................................................................................................................................. 90
6.5.1 DNS Server ..................................................................................................................... 90
6.5.2 Dynamic DNS ................................................................................................................. 91
6.5.3 DNS Entries .................................................................................................................... 92
6.5.4 DNS Proxy/Relay ............................................................................................................ 93
6.6 DSL ............................................................................................................................................... 94
6.7 DSL BONDING ............................................................................................................................... 96
6.8 INTERFACE GROUPING ................................................................................................................... 97
6.9 IP TUNNEL ................................................................................................................................... 100
6.9.1 IPv6inIPv4 ........................................................................................................................... 100
6.9.2 IPv4inIPv6 ........................................................................................................................... 101
6.10 CERTIFICATE .............................................................................................................................. 102
6.10.1 Local ............................................................................................................................. 102
6.10.2 Trusted CA .................................................................................................................... 104
6.11 POWER MANAGEMENT .............................................................................................................. 105
6.12 MULTICAS T................................................................................................................................ 106
6.13 WIRELESS .................................................................................................................................. 108
6.13.1 Basic .................................................................................................................................. 108
6.13.2 Security .............................................................................................................................. 110
6.13.3 WPS ................................................................................................................................... 113
6.13.4 MAC Filter......................................................................................................................... 114
6.13.5 Wireless Brid ge .................................................................................................................. 116
6.13.6 Advanced ........................................................................................................................... 117
CHAPTER 7 DIAGNOSTICS ........................................................................................................... 120
7.1 DIAGNOSTICS – INDIVIDUAL TESTS ............................................................................................. 120
7.2 FAULT MANAGEMENT .................................................................................................................. 121
7.3 UPTIME STATUS ........................................................................................................................... 122
7.4 PING ............................................................................................................................................ 122
7.5 TRACE ROUTE ............................................................................................................................. 123
7.6 SYSTEM UTILIZATION .................................................................................................................. 124
CHAPTER 8 MANAGEMENT ........................................................................................................ 125
8.1 SETTINGS ..................................................................................................................................... 125
8.1.1 Backup Settings............................................................................................................. 125
8.1.2 Update Settings ............................................................................................................. 126
8.1.3 Restore Default ............................................................................................................. 126
8.2 SYSTEM LOG ............................................................................................................................... 127
8.3 SNMP AGENT ............................................................................................................................. 129
8.4 TR-069 CLIENT ........................................................................................................................... 130
8.5 INTERNET TIME ........................................................................................................................... 132
8.6 ACCESS CONTROL ....................................................................................................................... 133
8.6.1 Passwords ......................................................................................................................... 133
8.6.2 Service Access ................................................................................................................... 135
8.6.3 IP Address ......................................................................................................................... 136
8.7 UPDATE SOFTWAR E ..................................................................................................................... 137
8.8 REBOOT ....................................................................................................................................... 138
5
CHAPTER 9 LOGO UT ..................................................................................................................... 139
APPENDIX A - FIREWALL ............................................................................................................. 140
APPENDIX B - PIN ASSIGNMENTS .............................................................................................. 143
APPENDIX C – SPECIFICATIONS ................................................................................................ 144
APPENDIX D - SSH CLIENT .......................................................................................................... 146
APPENDIX E - CONNECTION SETUP ......................................................................................... 147
APPENDIX F - WPS OPERATION ................................................................................................. 179
APPENDIX G - PRINTER SERVER ............................................................................................... 184
6
Chapter 1 Introduction
The NexusLink 3112u Multi DSL Bonde d Route r is a s ingle bo x solutio n for t riple p lay
applications. It features dual xDSL bonded ports that provide twice the xDSL
bandwidth (ADSL2+ in both ATM/PTM modes and VDSL2 PTM
8a/8b/8c/8d/12a/12b/17a profiles ) over comparable single-port mode ls. With PTM
mode supported, it can provide better performance than a regular A TM mode router .
The NexusLink 3112u is equipped with three Fast Ethernet ports, one Gigabit port
and 802.11n WLAN Access Point (AP). It goes above and beyond with high level
features such as QoS, VPN and remote management (with TR-069 support).
7
• Integrated 802.11n AP
• Configuration backup and
• Automatically switches to
• Up to 16 PVCs and Up to 8 PTM
• Supports bonded xDSL lines
• IPv6 compliant
• VDSL2 12a/12b profile support
• Printer Server (IPP)
• Per-VC packet level QoS
• Firmware upgrade and
• WPA and 802.1x
• Auto PVC configuration
• WPS 2.0
• UPnP
• RADIUS client
• IP/MAC address filtering
• Up to VDSL2 17a Profile
• Dynamic IP assignment
• US0
• Parental Control
•PhyR and G.INP
• DHCP Server/Client
• G.Vector
• DNS Relay/Proxy
• Static routing & RIP/RIP v2
• FTP/TFTP server
• NAT/PAT
• USB mass-storage and file sharing
• IGMP Snooping/Proxy and fa st leave
• Embedded SNMPv2 agent
• Supports remote administration
• HTTPS /HTTP server
• Web-based management
• TR-069/TR-098/TR-111
1.1 Features
(802.11b/g backward-compatible)
ADSL2+/VDSL2 according to the
restoration
flows
port setting of DSLAM
configuration
(Samba)
8
Chapter 2 Installation
Reset Button
Power Port
Ethernet (LAN) Ports
DSL Port
Power Button
2.1 Hardware Setup
Follow the instructions below to complete the hardware setup.
Non-stackable
This device is not stackable – do not place units on top of each other, otherwise
damage could occur.
2.2 Hardware Setup
Follow the inst ructions below to complete the hardware setup.
BACK PANEL
The figure below shows the back panel of the device.
Power ON
Press the power button to the OFF position (OUT). Connect the power adapter to the
power port. Attach the power adapter to a wall outlet or other AC sourc e. Press t he
power button to the ON position (IN). If the Power LED displays as expected then
the device is ready for setup (see section 2.3 LED Indicators for details).
Caution 1: If the device fails to power up, or it malfunctions, first verify that the
power cords are connected securely and then power it on again. If the
problem persists, contact technical suppo rt.
Caution 2: Before servicing or disassembling this equipment, disconnect all power
cords and telephone lines from their outlets.
Reset Button
Restore the default parameters of the device by pressing the Reset button for 10
seconds. After the device has rebooted successfully, the front panel should display
as expected (see section 2.3 LED Indicators for details).
9
NOTE: If pressed down for more than 60 seconds, the NexusLink 3112u will go
into a firmware update state (CFE boot mode). The firmware can then
be updated using an Internet browser pointed to the default IP address.
GB ETH Port
Use RJ45 straight through or cro ssover MDI/X cable to connect to Ethernet WAN.
Ethernet (LAN) Ports
Use 10/100 BASE-T RJ-45 cables to connect up to four network dev ices (as the GB
ETH port can also be used). These ports are auto-sensing MDI/X; so eit h er
straight-through or crossover cable can be used.
USB Host Port (Type A)
This port can be used to connect the router to the print server.
DSL Port
Connect to a VDSL with this RJ14 Po rt. This device contains a micro filter which
removes the ana log phone signal. If you wish, you can co nnect a regular telephone
to the same line by using a POTS splitter.
FRONT PANEL
The Wi-Fi & WPS buttons are located on the bottom-left of the front panel, as sho wn.
WiFi Switch
Press this button to enable/disable the wireless LAN (WLAN).
WPS Button
Press this button to begin searching for WPS clients. These clients must also enable
WPS push button mode (see Appendix F - WPS OPERATION for instructions).
10
2.3 LED Indicators
LED
Color
Mode
Function
Off
The device is powered down.
POST (Power O n Self Test) failure or o ther
or passing customer data.
Green
On
Powered device connected to the
associated port.
Off
No activity, modem powered off, no cable
Blink
Traffic is passing.
Powered device connected to the
associated port.
No activity, modem powered off, no cable
associated port.
Blink
Traffic is passing.
On
An Ethernet Link is established.
An Ethernet Link is not established.
Blink
Data transmitting or receiving over
Ethernet.
On
WPS enabled.
Off
WPS disenabled.
Blink
The router is searching for WPS clients.
On
The wireless module is ready.
(i.e. installed and enabled).
The wireless module is not ready.
(i.e. either not installed or disabled).
Blink
Data transmitting or receiving ov er WLAN.
On
The DSL1 link is established.
Off
The device is powered down.
Blink
DSL1 attempting sync:
The front panel LED indicators are shown belo w and explained in the fo llowing table.
This information can be used to c heck t he status of the device a nd its co nnec tions.
POWER
GB ETH
Green
Red
(for 1000
Base-T)
Yellow
(for 10/100
Base-T)
On The device is powered up.
On
On
Off
malfunction. A malfunction is any error of
internal sequence or state that will prevent
the device from connecting to the DSLAM
or no powered device connected to the
associated port.
or no powered device connected to the
ETH 1-3
WPS Green
WiFi Green
DSL1
Green
Green
Off
Off
11
Flashing at 2 Hz with a 50% duty cycle
On
The DSL2 link is established.
Off
The device is powered down.
Blink
DSL2 attempting sync:
On
IP connected and no traffic detect ed. If
if an VDSL connection is still present.
Off
Modem power off, modem in bridged mode
timeout, the light is turned off.
Blink
IP connected and IP Traffic is passing thru
the device (either direction)
when trying to detect c arr ie r s ignal flashing at 4
Hz with a 50% duty cycle when the carrier has
been detected and the modem is trying to train.
DSL2 Green
Green
INTERNET
Red
Flashing at 2 Hz with a 50% duty cycle
when trying to detect c arr ie r s ignal flashing at 4
Hz with a 50% duty cycle when the carrier has
been detected and the modem is trying to train.
an IP or PPPoE session is dropped due to
an idle timeout, the light will remain green
or VDSL connection not present. In
addition, if an IP or PPPo E session is
dropped for any reason, other than an idle
Device attempted to become IP connected
and failed (no DHCP response, no PPP oE
On
response, PPPoE authentication failed, no
IP address from IPCP, etc.)
12
Chapter 3 Web User Interface
This section describes how to access the device via the web user interface (WUI)
using an Internet browser such as Internet Explorer (version 5.0 and later).
3.1 Default Settings
The factory default settings of this device are summarized below.
• LAN IP address: 192.168.1.1
• LAN subnet mask: 255.255.255.0
• Administrative access (username: root, password: 12345)
• User access (username: user, password: user)
• Remote (WAN) access (username: support, password: support)
• WLAN access: enabled
Technical Note
During pow er on, the devi ce initializes a ll settings t o default values. It wi ll then
read the configuration profile from the permanent storage section of flash memory .
The default attributes are overwritten whe n identical attributes with different values
are configured. The configuration profile in permanent storage can be created via
the web use r interface or t elnet user interfa ce, or other manag ement protocols .
The factory default configuration can be restored either by pushing the reset button
for more than ten seconds until the power indicate s LED blinking o r b y c licking the
Restore Default Configuration option in the Restore Settings screen.
13
3.2 IP Configuration
DHCP MODE
When the NexusLink 3112u powers up, the onboard DHCP server will switch on.
Basically, the DHCP server issues and reserves IP addresses for LAN devices, such
as your PC.
To obtain an IP address from the DCHP server, follow the steps provided below.
NOTE: The following procedure assumes you are running Windows XP.
However, the general steps involved are similar for most operating
systems (OS). Check your OS support doc umentation for fur ther details.
STEP 1: From the Network Conne ctions window , open Local Area Conne ction (You
may also acce ss this scre en by double-clicking the Local Area Connection
icon on your taskbar). Click the Properties button.
STEP 2: Select Internet Protocol (TCP/IP) and click the Properties button.
STEP 3: Select Obtain an IP address automatically as shown below.
STEP 4: Click OK to submit these settings.
If you experience difficulty with DHC P mode, you can try static IP mode instead.
14
STATIC IP MODE
In static IP mode, you assign IP settings to your PC manually.
Follow these steps to configure your PC IP address to use subnet 192.168.1.x.
NOTE: The following procedure assumes you are running Windows XP.
However, the general steps involved are similar for most operating
systems (OS). Check your OS support doc umentation for fur ther details.
STEP 1: From the Network Connections window, open Local Area Connection (You
may also acce ss this scre en by double-clicking the Local Area Connection
icon on your taskbar). Click the Properties button.
STEP 2: Select Internet Protocol (TCP/IP) and click the Properties button.
STEP 3: Change the IP address to the 192.168.1.x (1<x<255) subnet with subnet
mask of 255.255.255.0. The screen should now display as shown below.
STEP 4: Click OK to submit these settings.
15
3.3 Login Procedure
Perform the following steps to login to the web user interface.
NOTE: The default settings can be found in section 3.1 Default Settings
STEP 1: Start the Internet browser and enter the default IP address for the device
in the Web address field. For example, if the default IP address is
192.168.1.1, type http://192.168.1.1.
NOTE: For local administration (i.e. LAN access), the PC running the bro w ser
must be attached to the Ethernet, and not necessarily to the device.
For remote access (i.e. WAN), use the IP address shown on the Device
Information screen and login with remote username and password.
STEP 2: A dialog box will appear, such as the one below. Enter the default
username and password, as defined in section 3.1 Default Settings.
.
Click OK to continue.
NOTE: The login pa ssword can be changed later (see section 8.6.1 Passwords
).
16
STEP 3: After successfully logging in for the first time, you will reach this screen.
You can also reach this page by clicking on the following icon located at the top of
the screen.
17
Chapter 4 Device Information
You can reach this page by clicking on the following icon located at the top of the
screen.
The web user interface window is divided into tw o frames, the main menu (at left)
and the display screen (on the right). The main menu has several options and
selecting each of these options opens a submenu with more selections.
NOTE: The menu items shown are b ased upon the configured conne ction(s) and
user account privileges. For example, if NAT and Firewall are enabled, the
main menu will display the NAT and Security submenus. If either is
disabled, their corresponding menu(s) will a lso be disabled.
Device Info is the first selection on the main menu so it will be discussed first.
Subsequent chapte rs will introduce the other main menu options in sequence.
The Device Info Summary screen displays at startup.
18
This screen shows hardware, software, IP settings and other related information.
19
4.1 WAN
Heading
Description
Interface
Name of the interface for WAN
Description
Name of the WAN con nection
Type
Shows the connectio n t ype
VlanMuxId
Shows 802.1Q VLAN ID
IPv6
Shows WAN IPv6 status
status
MLD
Shows Multicast Listener Discovery (MLD) status
NAT
Shows Network Address Translation (NAT) status
Firewall
Shows the status of Firewall
Status
Lists the status of DSL link
IPv4 Address
Shows WAN IPv4 address
IPv6 Address
Shows WAN IPv6 address
Select WAN from the Device Info submenu to display the configured PVC(s).
IGMP Shows Internet Group Management Protocol (IGMP)
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