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 [email protected]

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

4

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)

20

4.2 Statistics

Heading

Description

Interface

LAN interface(s)

Received/Transmitted: - Bytes

- Drops

Number of Bytes

Number of dropped packets

This selection provides LAN, WAN, ATM and xDSL statistics.

NOTE: These screens are updated automatically every 15 seconds.

Click Reset Statistic s to perform a manual update.

4.2.1 LAN Statistics

This screen shows data traffic statistics for each LAN interface.

- Pkts

- Errs

Number of Packets
Number of packets with errors

21

4.2.2 WAN Service

Heading

Description

Interface

WAN interfaces

Description

WAN service label

Received/Transmitted - Bytes

- Drops

Number of Bytes

Number of dropped packets

This screen shows data traffic statistics for each WAN interface.

- Pkts

- Errs

Number of Packets
Number of packets with errors

22

4.2.3 XTM Statistics

Heading

Description

Port Number

ATM PORT (0-3)

In Octets

Number of octets received over the interface

Out Octets

Number of octets transmitted over the interface

In Packets

Number of packets received over the interface

Out Packets

Number of packets transmitted over the interface

In OAM Cells

Number of OAM Cells received over the interface

Out OAM Cells

Number of OAM Cells transmitted over the interface.

In ASM Cells

Number of ASM Cells received over the interface

Out ASM Cells

Number of ASM Cells transmitted over the interface

In Packet
Errors

Number of packets in Error
In Cell Errors

Number of cells in Error

The following figure shows ATM (Asynchronous Transfer Mode)/PTM (Packet
Transfer Mode) statistics.

XTM Interface Statistics

23

4.2.4 xDSL Statistics

The xDSL Statistics screen displays information corresponding to the xDSL type.
The two examples below (VDSL & ADSL) show this variation.

VDSL

24

ADSL

Field

Description

Mode

VDSL, VDSL2

Traffic Type

ATM, PTM

Status

Lists the status of the DSL link

Click the Reset Statistics button to refresh this screen.

25

Field

Description

Link Power State

Link output power state.

Line Coding (Trellis)

Trellis On/Off

SNR Margin (0.1 dB)

Signal to Noise Ratio (SNR) margin

Attenuation (0.1 dB) Estimate of average loop attenuation in the downstream

direction.

(0.1 dBm)

Attainable Rate (Kbps)

The sync rate you would obtain.

Rate (Kbps)

Current sync rates downstream/upstream

B

Number of bytes in Mux Data Frame

M

Number of Mux Data Frames in a RS codeword

T

Number of Mux Data Frames in an OH sub-frame

R

Number of redundancy bytes in the RS codeword

S

Number of data symbols the RS codeword spans

L

Number of bits transmitted in each data symbol

D

The interleaver depth

I

The interleaver block size in bytes

N

RS codeword size

Delay

The delay in milliseconds (msec)

INP

DMT symbol

OH Frames

Total number of OH frames

OH Frame Errors

Number of OH frames received with errors

RS Words

Total number of Reed-Solomon code errors

RS Correctable Errors

Total Number of RS with correctable errors

RS Uncorrectable
Errors

Total Number of RS words with uncorrectable errors
HEC Errors

Total Number of Header Error Checksum errors

OCD Errors

Total Number of Out-of-Cell Delineation errors

LCD Errors

Total number of Loss of Cel l Delineation

Total Cells

Total number of ATM cells (including idle + data cells)

Data Cells

Total number of ATM data cells

Bit Errors

Total number of bit errors

Total ES

Total Number of Errored Seconds

Total SES

Total Number of Severely Errored Seconds

Total UAS

Total Number of Unavailable Seconds

Output Power

In VDSL mode, the following section is inserted.

Total upstream output power

26

xDSL BER TEST

Click xDSL BER Test on the xDSL Statistics screen to test the Bit Error Rate (BER).
A small pop-up window will open after the button is pressed, as shown below.

Click Start to start the test or click Close to cance l the test. After the BER testing is
complete, the pop-up window will display as follows.

27

xDSL TONE GRAPH

Click Draw Tone Graph on the xDSL Statistics screen and a pop-up window will
display the xDSL bits per tone status, as s hown below.

28

Field

Description

Destination

Destination network or destination host

Gateway

Next hop IP address

Subnet Mask

Subnet Mask of Destination

Flag

U: route is up

M: modified from routing daemon or redirect

Metric

The 'distance' to the target (usually counted in hops). It is not
used by recent kernels, but may be needed by routing daemons.

Service

Shows the WA N connection label

Interface

Shows connection interfaces

4.3 Route

Choose Route to display the routes that the NexusLink 3112u has found.

!: reject route
G: use gateway
H: target is a host
R: reinstate route for dynamic routing
D: dynamically installed by daemon or redirect

29

4.4 ARP

Field

Description

IP address

Shows IP address of host pc

Flags

Complete, Inc omp lete, Permanent, or Pub l ish

HW Address

Shows the MAC address of host pc

Device

Shows the connectio n interface

Field

Description

IPv6 Address

Shows IP address of device/host/PC

MAC Address

Shows the Ethernet MAC address of the device /host/PC

IP Address

Shows IP address of device/host/PC

Expires In

Shows how much time is left for each DHCP Lease

Click ARP to display the ARP information.

4.5 DHCP

Click DHCP to display all DHCP Leases.

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Field

Description

IPv6 Address

Shows IP address of device/host/PC

MAC Address

Shows the Ethernet MAC address of the device /host/PC

Duration

Shows leased time in hours

Expires In

Shows how much time is left for each DHCP Lease

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4.6 NAT Session

Field

Description

Source IP

The source IP from w h ich t he NAT session is established

Source Port

The source port from which the NAT session is established

Destination IP

The IP which the NAT session was connected to

Destination Port

The port which the N AT session was connected to

Protocol

The Protocol used in establishing the particular NAT session

Timeout

The time remaining for the TCP/UDP connection to be active

Click the “Show All” button to display the following.

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4.7 IGMP Proxy

Field

Description

Interface

The Source interface from which the IGMP report was received

WAN

The WAN interface from which the multicast traffic is received

Groups

The destination IGMP group address

Member

The Source IP from which the IGMP report was received

Timeout

The time remaining before the IGMP report expires

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4.8 IPv6

Field

Description

Interface

WAN interface with IPv6 enabled

Status

Connection status of the WAN interface

Address

IPv6 Address of the WAN interface

Prefix

Prefix received/configured on the WAN interface

Device Link-local Address

The CPE's LAN Address

Default IPv6 Gateway

The default WAN IPv6 gateway

IPv6 DNS Server

The IPv6 DNS servers received from the WAN interface
/ configured manua lly

4.8.1 IPv6 Info

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4.8.2 IPv6 Neighbor

Field

Description

IPv6 Address

Ipv6 address of the device(s) found

Flags

Status of the neighbor device

HW Address

MAC address of the neighbor device

Device

Interface from which the device is located

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4.8.3 IPv6 Route

Field

Description

Destination

Destination IP Address

Gateway

Gateway address used for destination IP

Metric

Metric specified for gateway

Interface

Interface used for destination IP

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4.9 Network Map

The network map feature provides an illustration of connected devices
on the router.

The current wan status (firewall on/off) is displayed on the left side.
Detailed information of PC/USB connected to the router is shown on

the right side.

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Field

Description

MAC

Lists the MAC address of all the stations.

Associated

Lists all the stations that are associated with the Access

tion. I f a stat ion is id le for

too long, it is removed from this lis t.

Authorized

Lists those devices with authorized access.

SSID

Lists which SSID of the mode m that the stations conne ct
to.

Interface

Lists which interface of the modem that the stations
connect to.

4.10 Wireless

4.10.1 Station Info

This page shows authenticated wireles s stations and their status. Click the Refresh
button to update the list of stations in the WLAN.

Consult the table below for descriptions of each column heading.

Point, along with the amount of time since packets were
transferred to and fro m each sta

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4.10.2 Site Survey

The graph displays wireless APs found in your neighborhoo d b y channel.

39

Chapter 5 Basic Setup

You can reach this page by clicking on the following icon located at the top of the
screen.

This will bring you to the following screen.

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5.1 Wan Setup

Add or remove ATM, PTM and ETH WAN interface connections here.

Click Add to create a new ATM interface (see Appendix E - Connection Setup).

NOTE: Up to 8 ATM interfaces can be created and saved in flash memory.

To remove a connection, select its Remove column radio butto n and click Remove.

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5.1.1 WAN Service Setup

Heading

Description

Interface

Name of the interface for WAN

Description

Name of the WAN connection

Type

Shows the connectio n t ype

Vlan8021p

VLAN ID is used for VLAN Tagging (IEEE 802.1Q)

VlanMuxId

Shows 802.1Q VLAN ID

IGMP

Shows Internet Group Management Protocol (IGMP) status

NAT

Shows Network Address Translation (NAT) status

Firewall

Shows the Security status

IPv6

Shows the WAN IPv6 address

MLD

Shows Multicast Listener Discovery (MLD) status

Remove

Select interfaces to remove

This screen allows for the configuration of WAN interfaces.

Click the Add button to create a ne w co nnection. For connections on ATM or ETH
WAN interfaces see Appendix E - Connection Setup.

To remove a connection, select its Remove column radio button and click Remove.

To remove a connection, select its Remove column radio button and click Remove.

NOTE: ETH and A TM serv ice connec tions c anno t c oex ist. I n De fa ult Mo de, up to

8 WAN connectio ns can be configur ed; while VLAN M ux Connection Mode
supports up to 16 WAN connections.

NOTE: Up to 16 PVC profiles can be configured and saved in flash memory.

Also, ETH and PTM/ATM service connections cannot coexist.

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5.2 NAT

To display this option, NAT must be enabled in at least one PVC. NAT is not an
available option in Bridge mode.

5.2.1 Virtual Servers

Virtual Servers allow you to direct incoming tra ffic from the W AN side (identified by
Protocol and External port) to the internal server with private IP addresses on the
LAN side. The Internal port is required only if the external port needs to be
converted to a different port number used by the server on the LAN side.
A maximum of 32 entries can be configured.

To add a Virtual Server, click Add. The following will be displa yed.

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Consult the table below for field and header descriptions.

Field/Header

Description

Choose One Interface
Use Interface

Select a Service
Custom Service

User should select the service from the list.
User can enter the name of their choice.

Server IP Address

Enter the IP address for the server.

Enable NAT Loopback

Allows local machines to access virtual server via WAN IP
Address

External Port Start

Enter the starting external port number (w hen you select

External Port End

Enter the ending external port number (when you select
ranges are automatically configured.

Protocol

TCP, TCP/UDP, or UDP.

Internal Port Start

Enter the internal port starting number (when you select
are automatically configured

Internal Port End

Enter the internal port ending number (when y ou select
ranges are automatically configured.

Choose All Interface Virtual server rules will be created for all WAN interfaces.

Or

Select a WAN interface from the drop-down box.

Or

Custom Server). When a service is selected, the port
ranges are automatically configured.

Custom Server). When a service is selected, the port

Custom Server). When a service is selected the port ranges

Custom Server). When a service is selected, the port

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5.2.2 Port Triggering

Some applications require that specific ports in the firewall be opened for access by
the remote parties. Port Triggers dynamically 'Open Ports' in the firewall when an
application on the LAN initiates a TCP/UDP connection to a remote party using the
'Triggering Ports'. The Router allows the remote party from the WAN side to
establish new connections back to the applicatio n on the LAN side using the 'Open
Ports'. A maximum 32 entries can be configured.

To add a Trigger Port, click Add. The f ollowing will b e displaye d.

Click Save/Apply to save and apply the settings.

Consult the table below for field and heade r descriptions.

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Field/Header

Description

Use Interface

Select a WAN interface from the drop-down box.

Select an Application

User should select the application from the list.

Trigger Port Start

Enter the starting trigger port number (whe n you select
port ranges are automatically configured.

Trigger Port End

Enter the ending trigger port number (when you select
port ranges are automatically configured.

Trigger Protocol

TCP, TCP/UDP, or UDP.

Open Port Start

Enter the starting open port number (when you select
port ranges are automatically configured.

Open Port End

Enter the ending open port number (when you select
port ranges are automatically configured.

Open Protocol

TCP, TCP/UDP, or UDP.

Or
Custom Application

Or
User can enter the name of their choice.

custom application). When an application is selected, the

custom application). When an application is selected, the

custom application). When an application is selected, the

custom application). When an application is selected, the

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5.2.3 DMZ Host

The DSL router will forward IP packets from the WAN that do not belong to any of
the applications configured in the Virtual Servers table to the DMZ host computer.

To Activate the DMZ host, enter the DMZ host IP address and click Save/Apply.
To Deactivate the DMZ host, clear the IP address field and click Save/Apply.
Enable NAT Loopback allows PC on the LAN side to access servers in the LAN

network via the router’s WAN IP.

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5.2.4 IP Address Map

Field/Header

Description

Rule

The number of the rule

Type

Mapping type from local to public.

Local Start IP

The beginning of the local IP

Local End IP

The ending of the loc al IP

Public Start IP

The beginning of the public IP

Public End IP

The ending of the public IP

Remove

Remove this rule

Mapping Local IP (LAN IP) to some specified Public IP (WAN IP).

Click the Add button to display the following.

Select a Service, then click the Save/Apply button.

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One to One: mapping one local IP to a specific public IP
Many to one: mapping a range of local IP to a specific public IP
Many to many(Overload): mapping a range of local IP to a different range of

public IP
Many to many(No Overload): mapping a range of local IP to a same range of

public IP

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5.2.5 IPSEC ALG

IPSEC ALG provides multiple VPN passthrough connection support, allowing
different clients on LAN side to e stablish a s ecured IP Connec tion to the W AN server .

To enable IPSEC ALG, tick the checkbox and click the Save button.

50

5.2.6 SIP ALG

This page allows you to enable / disable SIP A LG.

51

5.3 LAN

Configure the LAN interface settings and then click Apply/Save.

Consult the field descriptions below for more details.

GroupName: Select an Interface Group.

1st LAN INTERFACE

IP Address: Enter the IP address for the LAN port.

Subnet Mask: Enter the subnet mask for the LAN port.

IGMP Snooping:
Standard Mode: In standard mode, multic ast traffic will flood to all

bridge ports when no client subscribes to a multicast
group – even if IGMP snooping is enabled.

52

Blocking Mode: In blocking mode, the multicast data traffic will be

blocked and no t flood to all bridge po rts when there are
no client subscriptions to any multicast group.

Enable Enh anced IGMP: Enable by ticking the checkbox . IGMP packets
between LAN ports will be blocked.

Enable LAN side firewall: Enable by ticking the checkbox .
DHCP Server: To enable DHCP, select Enable DHCP server and enter Start and

End IP addresses and the L eased Time. This se tting configures the
router to automatically assign IP, default gateway and DNS server
addresses to every PC on your LAN.

Setting TFTP Server: Enable by ticking the checkbox . Then, input the TFTP
server address or an IP ad d re ss.

Static IP Lease List: A maximum of 32 entries can be configured.

To add an entry, enter MAC address and Static IP address and then click
Apply/Save.

To remove an entry, tick the corresponding checkbox  in the Remove column and
then click the Remove Entries button, as shown below.

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2ND LAN INTERFACE

To configure a secondary IP address, tick the checkbox  outlined (in RED) below.

IP Address: Enter the secondary IP address for the LAN port.
Subnet Mask: Enter the secondary subnet ma sk for the LAN port.
Ethernet Media Type:

Configure auto negotiation, or enforce selected speed and duplex mode for the
Ethernet ports.

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5.3.1 LAN IPv6 Autoconfig

Configure the LAN interface settings and then click Save/Apply.

Consult the field descriptions below for more details.

55

LAN IPv6 Link-Local Address Configuration

Heading

Description

EUI-64

Use EUI-64 algorithm to calculate link-local address from MAC
address

User Setting

Use the Interface Identifier field to define a link-local address

Heading

Description

Interface Address
required):

Configure static LAN IPv6 address and subnet prefix

Heading

Description

Stateless

Use stateless configuration

Refresh Time (sec):

The information refresh time option specifies how long a
from DHCPv6

Stateful

Use stateful configuratio n

Start interface ID:

Start of interface ID to be assigned to dhcpv6 client

Leased Time (hour):

Lease time for dhcpv6 client to use t he assigned IP address

Static LAN IPv6 Address Configuration

(prefix length is

IPv6 LAN Applications

End interface ID: End of interface ID to be assigned to dhcpv6 client

Static IP Lease List: A maximum of 32 entries can be configured.

length

client should wait before refreshing information retrieved

To add an entry, enter MAC address and Interface ID and then click Apply/Save.

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To remove an entry, tick the corresponding checkbox  in the Re mo v e column and

Heading

Description

Enable RADVD

Enable use of router advertisement daemon

RA interval Min(sec):

Minimum time to send router advertisement

Reachable Time(ms):

The time, in milliseconds that a neighbor is
confirmation

Default Preference:

Preference level associated with the default
router

MTU (bytes):

MTU value used in router advertisement
the same MTU value

Enable Prefix Length Relay

Use prefix length receive from WAN interface

Enable Configuration Mode

Manually configure prefix, prefix length,
router advertisement

Enable ULA Prefix Advertisement

Allow RADVD to advertise Unique Local Address
Prefix

Randomly Generate

Use a Randomly Generated Prefix

Statically Configure Prefix

Specify the prefix to be used

Statically Configure

The prefix to be used

Preferred Life Time (hour)

The preferred life time for this prefix

Valid Life Time (hour)

The valid life time for this prefix

Enable MLD Snooping

Enable/disable IPv6 multicast forward to LAN
ports

then click the Remove Entries button, as shown below.

RA interval Max(sec): Maximum time to send router advertisement

reachable after receiving reachability

messages to insure t hat all nodes on a link use

preferred lifetime and valid lifetime used in

57

5.3.2 Static IP Neighbor

Heading

Description

IP Version

The IP version used for the neighbor device

IP Address

Define the IP Address for the neighbor device

MAC Address

The MAC Address of the neighbor device

Associated Interface

The interface where the neighbor device is located

Click the Add button to display the following.

Click Apply/Save to apply and save the settings.

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5.3.3 UPnP

Select the checkbox  provided and click Apply/Save to enable UPnP protocol.

59

5.4 Wireless

Option

Description

Enable
Wireless

A checkbox  that enables or disables the wireless LAN interface.
When selected, a set of basic wireless options will appear.

5.4.1 Basic

The Basic option allows you to configure basic features of the wireless LAN interface.
Among other things, you can enable or disable the wireless LAN interface, hide the
network from active scans, set the wireless network name (also known as SSID)
and restrict the channel set based on country requirements.

Click Apply/Save to apply the selected wireless options.
Consult the table below for descriptions of these options.

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Option

Description

Hide Access

Point

Select Hide Access Point to protect the access point from detection

configuration.

Clients

When enabled, it prev ents client PC s from seeing o ne another in My
wireless client communicating with another wireless client.

Disable WMM

Stops the router from ‘advertising’ its Wireless Multimedia (WMM)
time-sensitive applications (e.g. VoIP, Video).

Enable

Forwarding

Select the checkbox  to enable this function.
Enable WiFi

Button

Select the checkbox  to enable the WiFi button.

SSID

characters]

Sets the wireless network name. SSID stands for Service Set

granted access.

BSSID

The BSSID is a 48-bit identity used to identify a particular BS S

the BSSID is generated randomly.

Country

A drop-down menu that permits worldwide and specific national
US= worldwide, Japan=1-14, Jordan= 10-13, Israel= 1-13

Max Clients

The maximum number of clients that can access the router.

Wireless -

This router supports multiple SSIDs called Guest SSIDs or Virtual

column. To hide a Guest SSID select

NOTE: Remote wireless hosts cannot scan Guest SSIDs.

by wireless active scans. To check AP status in Windows XP, open

Network Connections from the start Menu and select View
Available Netwo rk Connections. If the access point is hidden, it

will not be listed there. To connect a client to a hidden access point,
the station must add the access point manually to its wireless

Isolation

Advertise

Wireless
Multicast

[1-32

Network Places or Network Neighborhood. Also, prevents one

functionality, which provides basic quality of service for

Identifier. All stations must be configured with the correct SSID to
access the WLAN. If the SSID does not match, that user will not be

(Basic Service Set) within an area. In Infrastructure BSS
networks, the BSSID is the MAC (Media Access Control) address of
the AP (Access Point); and in Independent BSS or ad hoc networks,

settings. Local regulations limit channel range :

Guest /
Virtual
Access Points

Access Points. To enable one or more Guest SSIDs select the
checkboxes  in the Enabled
its checkbox  in the Hidden column.

Do the same for Isolate Clients and Disable WMM Advertise.
For a description of these two functions, see the previous entries for
“Clients Isolation” and “Disable WMM Advertise”. Similarly, for
Enable WMF, Max Clients and BSSID, consult the matching
entries in this table.

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5.4.2 Security

Select SSID

Select the wireless network name from the drop-down box. SSID stands for Service
Set Identifier. All stations must be configured with the correct SSI D to access the
WLAN. If the SSID does not match, that client will not be granted access.

Network Authentication

wireless network. If network authentication is s et to Ope n, then n o authenticat ion

The following screen appears when Wireless Security is selected. The options shown
here allow you to configure security features of the wireless LAN interface.

Click Apply/Save to implement new configuration settings.

WIRELESS SECURITY

Setup requires that the user configure these settings using the Web User Interface
(see the table below).

This option specifies whether a network key is used for authentication to the
is provided. Despite this, the identity of the client is still verified.
Each authentication type has its own settings. For example, selecting 802.1X

authentication will reveal the RADIUS Server IP address, Port and Key fields. WEP
Encryption will also be enabled as shown below.

The settings for WPA authentication are show n below.

62

WEP Encryption

This option specifies whether data sent over the network is encrypted. The same

ication. Four network

keys can be def ined although only one can be used at any one time. Use the Curre nt

Security options include auth enticat ion and e ncryption s ervice s based on the wired

tion keys are generated and

wireless network communications channel.

Encryption Strength

This drop-down list box will display when WEP Encryption is enabled. The key

64-bit or 128-bit. A 64-bit key is equivalent to 5 ASCII characters or 10

The settings for WPA-PSK authentication are shown next.

network key is us ed for data encryption and network authent
Network Key list bo x to select the appropriate network key.

equivalent privacy (WEP) algorithm. WEP is a set of security services used to
protect 802.11 networks from unauthorized access, such as eavesdropping; in this
case, the capture of wireless network traffic.
When data encryption is enabled, secret shared encryp
used by the source station and the destination station to alter frame bits, thus
avoiding disclosure to eavesdroppers.

Under shared key authentication, each wireless station is assumed to have received
a secret shared key over a secure channel that is independent from the 802.11

strength is proportional to the number of binary bits comprising the key. This
means that keys with a greater number of bits have a greater degree of security and
are considerably more difficult to crack. Encryption strength can be set to either

63

hexadecimal numbers. A 128-bit key contains 13 ASCII characters or 26

hexadecimal numbers. Each key contains a 24-bit header (an initiation vector)

which enables parallel decoding of multiple streams of encrypted data.

Please see 6.13 for MAC Filter, Wireless Bridge and Advanced Wireless features.