Comtrend NL3240U User Manual

6.9 IP Tunnel

6.9.1 IPv6inIPv4

Configure 6in4 tunneling to encapsulate IPv6 traffic over explicitly-configured IPv4
links.

Click the Add button to display the following.

Click Apply/Save to apply and save the settings.

Options Description

Tunnel Name Input a name for the tunnel
Mechanism Mechanism used by the tunnel deployment
Associated WAN Interface Select the WAN interface to be used by the tunnel
Associated LAN Interface Select the LAN interface to be included in the tunnel
Manual/Automatic Select automatic for point-to-multipoint tunneling /

manual for point-to-point tunneling

IPv4 Mask Length The subnet mask length used for the IPv4 interface
6rd Prefix with Prefix Length Prefix and prefix length used fo r the IPv6 interface
Border Relay IPv4 Address Input the IPv4 address of the other device

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6.9.2 IPv4inIPv6

Configure 4in6 tunneling to encapsulate IPv4 traffic over an IPv6-onl y environment.

Click the Add button to display the following.

Click Apply/Save to apply and save the settings.

Options Description

Tunnel Name Input a name for the tunnel
Mechanism Mechanism used by the tunnel deployment
Associated WAN Interface Select the WAN interface to be used by the tunnel
Associated LAN Interface Select the LAN interface to be included in the tunnel
Manual/Automatic Select automatic for point-to-multipoint tunneling /

manual for point-to-point tunneling

AFTR Address of Address Family Translation Router

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6.10 Certificate

A certificate is a public key, attached with its owner’s information (company name,
server name, personal real name, contact e-mail, postal address, etc) and digital
signatures. There will be one or more digital signatures attached to the certificate,
indicating that these entities have verified that this certificate is valid.

6.10.1 Local

CREATE CERTIFICATE REQUEST

Click Create Certificate Request to generate a certificate-signing request.
The certificate-signing request can be submitted to the vendor/ISP/ITSP to apply for

a certificate. Some information must be included in the certificate-signing request.
Your vendor/ISP/ITSP will ask you to provide the information they require and to
provide the information in the format they regulate. Enter the required information
and click Apply to generate a private key and a certificate-signing request.

The following table is provided for your reference.

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Field Description

Certificate Name A user-defined name for the certificate.
Common Name Usually , the fully qualified domain name for the machine.
Organization Name The exact legal name of your organization.

Do not abbreviate.

State/Province Name The state or province where your organization is located.

It cannot be abbreviated.

Country/Region Name The two-letter ISO abbreviation for your country.

IMPORT CERTIFICATE

Click Import Certificate to paste the certificate content and the private key
provided by your vendor/ISP/ITSP into the corresponding boxes shown below.

Enter a certificate name and click the Apply button to import the certificate and its
private key.

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6.10.2 Trusted CA

CA is an abbreviation for Certificate Authority, which is a part of the X.509 system.
It is itself a certificate, attached with the owner inf o rmation of this certificate
authority; but its purpose is not encryption/decryption. Its purpose is to sign and
issue certificates, in order to prove that these certificates are valid.

Click Import Certificate to paste the certificate content of your trusted CA. The
CA certificate content will be provided by your vendor/ISP /ITSP and is used to
authenticate the Auto-Configuration Server (ACS) that the CPE will connect to.

Enter a certificate name and click Apply to import the CA certificate.

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6.11 Power Management

This screen allows for control of hardware modules to evaluate power consumpti on.
Use the buttons to select the desired option, click Apply and check the response.

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6.12 Multicast

Input new IGMP or MLD protocol configuration fields if you want modify default
values shown. Then click Apply/Save.

Multicast Precedence:
Select precedence of multicast packets.

Multicast Strict Grouping Enforcement:
Enable/Disable multicast strict grouping.

Field Description

Default Version Define IGMP using version with video server.
Query Interval The query interval is the amount of time in seconds

between IGMP General Query messages sent by the
router (if the router is the querier on this subnet). The
default query interval is 125 seconds.

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Field Description

Query Response Interval The query response interval is the maximum amount

of time in seconds that the IGMP router waits to
receive a response to a General Query message. The
query response interval is the Maximum Response
Time field in the IGMP v2 Host Membership Query
message header. The default query response interval
is 10 seconds and must be less than the query
interval.

Last Member Query
Interval

The last member query interval is the amount of time
in seconds that the IGMP router waits to receive a
response to a Group-Specific Query message. The last
member query interval is also the amount of time in
seconds between successive Group-Specific Query
messages. The default last member query interval is
10 seconds.

Robustness Value The robustness variable is a way of indicating how

susceptible the subnet is to lost packets. IGMP can
recover from robustness variable minus 1 lost IGMP
packets. The robustness variable should be set to a
value of 2 or greater. The default robustness variable
value is 2.

Maximum Multicast

Setting the maximum number of Multicast groups.

Groups
Maximum Multicast Data

Define the maximum multicast video stream number.

Sources (for IGMPv3)
Maximum Multicast

Group Members

Setting the maximum number of groups that ports
can accept.

Fast Leave Enable When you enable IGMP fast-leave processing, the

switch immediately removes a port when it detects an
IGMP version 2 leave message on that port.

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6.13 Wireless

6.13.1 Basic 2.4GHz

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 configure the basic wireless options.

Consult the table below for descriptions of these options.

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Option Description

Enable
Wireless

Enable
Wireless
Hotspot2.0

Hide Access
Point

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

Enable Wireless Hotspot 2.0 (Wi-Fi Certified Passpoint) on the
wireless interface.

Select Hide Access Point to protect the access point from detection by
wireless active scans. To check AP status in Windows XP, open

Network Connections from the start Menu and select View
Available Network 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
configuration.

Clients
Isolation

When enabled, it prevents client PCs from seeing one another in My
Network Places or Network Neighborhood. Also, prevents one
wireless client communicating with another wireless client.

Disable
WMM
Advertise

Enable

Stops the router from ‘advertising’ its Wireless Multimedia (WMM)
functionality , which provides basic quality of service for time-sensitive
applications (e.g. VoIP, Video).

Select the checkbox  to enable this function.
Wireless
Multicast
Forwarding

SSID
[1-32

characters]

Sets the wireless network name. SSID stands for Service Set

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

granted access.
BSSID The BSSID is a 48-bit identity used to identify a particular BSS (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, the BSSID is

generated randomly.
Country A drop-down menu that permits worldwide and specific national

settings. Local regulations limit channel range:

US= worldwide, Japan=1-14, Jordan= 10-13, Israel= 1-13
Country

Wireless country code for transmit power limit.
RegRev

Max Clients The maximum number of clients that can access the router.
Wireless -

Guest /
Virtual
Access
Points

This router supports multiple SSIDs called Guest SSIDs or Virtual

Access Points. To enable one or more Guest SSIDs select the

checkboxes  in the Enabled column. T o hide a Guest SSID select 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.

NOTE: Remote wireless hosts cannot scan Guest SSIDs.

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6.13.2 Security 2.4GHz

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

Please see 6.13.3 for WPS setup instructions.
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).

Select SSID

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

Network Authentication

This option specifies whether a network key is used for authenticat ion to the
wireless network. If network authe ntication is set to Open, then no authenti cation
is provided. Despite this, the iden tity 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.

Different authentication type pops up different settings requests.

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Choosing 802.1X, enter RADIUS Server IP address, RADIUS P ort, RADIUS key and
Current Network Key.

Also, enable WEP Encryption and select Encryption Strength.

Select the Current Network Key and enter 13 ASCII characters or 26 hexadecimal
digits for 128-bit encryption keys and enter 5 ASCII characters or 10 hexadecimal
digits for 64-bit encryption keys.

Choosing WPA2-PSK, you must enter WPA Pre-Shared Key and Group Rekey
Interval.

WEP Encryption

This option specifies whether data sent over the network is encrypted. The same
network key is used for data encryption and network authentication. Four network
keys can be defined although only one can be used at any one time. Use the Current
Network Key list box to select the appropriate network key.

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Security options include authentication and encryption services based on the wire d
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 encryption keys are generated and
used by the source station and the destination station to alter frame bits, thus
avoiding disclosure to eavesdroppers.

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

Encryption Strength

This drop-down list box will display when WEP Encryption is en abled. The key
strength is proportional to the number of binary bits comprising the key. This
means that keys with a greater number of bits have a grea ter degree of security and
are considerably more difficult to crack. Encryption strength can be set to either
64-bit or 128-bit. A 64-bit key is equivalent to 5 ASCII characters or 10
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.

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6.13.3 WPS 2.4GHz

Wi-Fi Protected Setup (WPS) is an industry standard that simplifies wireless security
setup for certified network devices. Every WPS certified device has both a PIN
number and a push button, located on the device or accessed through device
software. The NexusLink 3240 has a WPS button on the device.

Devices with the WPS logo (shown here)
support WPS. If the WPS logo is not present
on your device it still may support WPS, in
this case, check the device documentation
for the phrase “Wi-Fi Protected Setup”.

NOTE: WPS is only available in Open, WPA-PSK, WPA2-PSK and Mixed

WPA2/WPA-PSK network authentication modes. Other authentication
modes do not use WPS so they must be configured manually.

To configure security settings with WPS, follow the procedures below .

I. Setup

Step 1: Enable WPS by selecting Enabled from the drop down list box shown.

Step 2: Set the WPS AP Mode. Configured is used when the NexusLink 3240 will

assign security settings to clients. Unconfigured is used when an
external client assigns security settings to the NexusLink 3240.

NOTES: Your client may or may not have the ability to provide security settings to

the NexusLink 3240. If it does not, then you must set the WPS AP mode
to Configured. Consult the device documentation to check its capabilities.

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IIa. PUSH-BUTTON CONFIGURATION

The WPS push-button configuration provides a semi-automated configuration
method. The WPS button on the front panel of the router can be used for this
purpose.

The WPS push-button configuration is described in the procedure below. It is
assumed that the Wireless function is Enabled and that the router is configured as
the Wireless Access Point (AP) of your WLAN. In addition, the wireless client must
also be configured correctly and turned on, with WPS function enabled.

NOTE: The wireless AP on the router searches for 2 minutes. If the router stops

searching before you complete Step 4, return to Step 3.

Step 3: Press WPS button

Press the WPS button on the front panel of the router. The WPS LED will

blink to show that the router has begun searching for the client.

Step 4: Go to your WPS wireless client and activate the push-button function.
A typical WPS client screenshot is shown below as an example.

Now go to Step 7 (part III. Check Connection) to check the WPS connection.

IIb. WPS – PIN CONFIGURATION

Using this method, security settings are configured with a personal identification
number (PIN). The PIN can be found on the device itself or within the software.
The PIN may be generated randomly in the latter case. To obtain a PIN number for
your client, check the device documentation for specific instructions.

The WPS PIN configuration is described in the procedure below. It is assumed that
the Wireless function is Enabled and that the router is conf igured as the Wireless
Access Point (AP) of your wireless LAN. In addition, the wireless client must also be
configured correctly and turned on, with WPS function enabled.

Step 5: Select the PIN radio button in the WSC Setup section of the Wireless

Security screen, as shown in A or B below , and then click the appropriate
button based on the WSC AP mode selected in step 2.

A - For Configured mode, click the Add Enrollee button.

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Enter STA PIN: a Personal Identification N umber (PIN) has to be read from either
a sticker or the display on the new wireless device. This PIN must then be inputted
at representing the network, usually the Access Point of the network.

B - For Unconfigured mode, click the Config AP button.

Step 6: Activate the PIN functio n on the wi reless client. For Configured mode,

the client must be configured as an Enrollee. For Unconfigured mode,
the client must be configured as the Registr ar. This is different from the
External Registrar function provided in Windows Vista.

The figure below provides an example of a WPS client PIN function in-progress.

III. CHECK CONNECTION

Step 7: If the WPS setup method was successful, you will be able access the

wireless AP from the client. The client software should show the status.
The example below shows that the connection established successfully.

You can also double-click the Wirele ss Network Connection icon from the

Network Connections window (or the system tr ay) to confirm the status of
the new connection.

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6.13.4 MAC Filter 2.4GHz

This option allows access to the router to be restricted based upon MAC addresses.
To add a MAC Address filter, click the Add button shown below. To delete a filter,
select it from the MAC Address table below and click the Remove button.

Option Description

Select

SSID

MAC

Restrict

Mode

MAC

Address

After clicking the Add button, the following screen appears.

Select the wireless network name from the drop-down menu. SSID
stands for Service Set Identifier. All stations must be configured with the
correct SSID to access the WLAN. If the SSID does not mat ch, that user
will not be granted access.

Disabled: MAC filtering is disabled.
Allow: Permits access for the specified MAC addresses.
Deny: Rejects access for the specified MAC addresses.

Lists the MAC addresses subject to the MAC Restrict Mode. A maximum
of 60 MAC addresses can be added. Every network device has a unique
48-bit MAC address. This is usually shown as xx.xx.xx. xx.xx.xx, where
xx are hexadecimal numbers.

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Enter the MAC address in the box provided and click Apply/Save.

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6.13.5 Wireless Bridge 2.4GHz

This screen allows for the configuration of wireless bridge features of the WiFi
interface. See the table below for detailed explanations of the various options.

Click Apply/Save to implement new configuration settings.

Feature Description

Bridge Restrict Selecting Disabled disables wireless bridge restriction, which

means that any wireless bridge will be granted access.
Selecting Enabled or Enabled (Scan) enables wireless bridge
restriction. Only those bridges selected in the Remote Bridges
list will be granted access. Click Refresh to update the station
list when Bridge Restrict is enabled.

Remote
Bridges MAC
Address

Enter the list of MAC addresses allowed to act as wireless bridge
clients.

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6.13.6 Advanced 2.4GHz

The Advanced screen allows you to configure advanced features o f the wireless LAN
interface. You can select a particular channel on which to operate, force the
transmission rate to a particular speed, set the fragmentation threshold, set the RTS
threshold, set the wakeup interval for clients in power-save mode, set the beacon
interval for the access point, set XPress mode and set whether short or long
preambles are used. Click Apply/Save to set new advanced wireless options.

Field Description

Band Set to 2.4 GHz for compatibility with IEEE 802.11x

standards. The new amendment allows IEEE 802.11n units
to fall back to slower speeds so that legacy IEEE 802.11x
devices can coexist in the same network. IEEE 802.11g
creates data-rate parity at 2.4 GHz with the IEEE 802.11a
standard, which has a 54 Mbps rate at 5 GHz. (IEEE

802.11a has other differences compared to IEEE 802.11b
or g, such as offering more channels.)

Channel Drop-down menu that allows selection of a specific

channel.

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Field Description

Auto Channel Timer

Auto channel scan timer in minutes (0 to disable)

(min)

802.11n/EWC An equipment interoperability standard setting based on

IEEE 802.11n Draft 2.0 and En hanced Wireless Consortium
(EWC)

Bandwidth Select 20MHz or 40MHz bandwidth. 40MHz bandwidth uses

two adjacent 20MHz bands for increased data throughput.

Control Sideband Select Upper or Lower sideband when in 40MHz mode.

802.11n Rate Set the physical transmission rate (PHY).

802.11n Protection Turn Off for maximized throughput.

Turn On for greater security.

Support 802.11n
Client Only

Turn Off to allow 802.11b/g clients access to the router.
T ur n On to prohibit 802.11b/g client’s access to the ro uter.

RIFS Advertisement One of several draft-n features designed to improve

efficiency. Provides a shorter delay between OFDM
transmissions than in802.11a or g.

OBSS Co-Existence Co-existence between 20 MHZ AND 40 MHZ overlapping

Basic Service Set (OBSS) in WLAN.

RX Chain Power Save Enabling this feature turns off one of the Receive chains,

going from 2x2 to 2x1 to save power.

RX Chain Power Save
Quiet Time

The number of seconds the traffic must be below the PPS
value below before the Rx Chain Power Save feature
activates itself.

RX Chain Power Save
PPS

The maximum number of packets per seconds that can be
processed by the WLAN interface for a duration of Quiet
Time, described above, before the Rx Chain Power Sa v e
feature activates itself.

54g Rate Drop-down menu that specifies the following fixed rates:

Auto: Default. Uses the 11 Mbps data rate when possible
but drops to lower rates when necessary. 1 Mbps, 2Mbps,

5.5Mbps, or 11Mbps fixed rates. The appropriate setting

is dependent on signal strength.
Multicast Rate Setting for multicast packet transmit rate (1-54 Mbps)
Basic Rate Setting for basic transmission rate.
Fragmentation

Threshold

A threshold, specified in bytes, that determines whether

packets will be fragmented and at what size. On an

802.11 WLAN, packets that exceed the fragmentation

threshold are fragmented, i.e., split into, smaller units

suitable for the circuit size. Packets smaller than the

specified fragmentation threshold value are not

fragmented. Enter a value between 256 and 2346. If you

experience a high packet error rate, try to slightly increase

your Fragmentation Threshold. The value should remain

at its default setting of 2346. Setting the Fragmentation

Threshold too low may result in poor performance.

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Field Description

RTS Threshold Request to Send, when set in bytes, specifies the packet

size beyond which the WLAN Card invokes its RTS/CTS

mechanism. Packets that exceed the specified RTS

threshold trigger the RTS/CTS mechanism. The NIC

transmits smaller packet without using RTS/CTS. The

default setting of 2347 (maximum length) disables RTS

Threshold.
DTIM Interval Delivery T raffic Indication Message (DTIM) is also known as

Beacon Rate. The entry range is a value between 1 and

65535. A DTIM is a countdown variable that informs clients

of the next window for listening to broadcast and multicast

messages. When the AP has buffered broadcast or

multicast messages for associated clients, it sends the next

DTIM with a DTIM Interval value. AP Clients hear the

beacons and awaken to receive the broadcast and

multicast messages. The default is 1.
Beacon Interval The amount of time between beacon transmissions in

milliseconds. The default is 100 ms and the acceptable

range is 1 – 65535. The beacon transmissions identify the

presence of an access point. By default, network devices

passively scan all RF channels listening for beacons coming

from access points. Before a station enters power save

mode, the station needs the beacon interval to know when

to wake up to receive the beacon (and learn whether there

are buffered frames at the access point).
Global Max Clients The maximum number of clients that can connect to the

router.
Xpress

TM

Technology Xpress Technology is compliant with draft specifications of

two planned wireless industry standards.
WMM (Wi-Fi

Multimedia)

The technology maintains the priority of audio, video and

voice applications in a Wi-Fi network. It allows multimedia

service get higher priority.
WMM No

Acknowledgement

Refers to the acknowledge policy used at the MAC level.

Enabling no Acknowledgement can result in more efficient

throughput but higher error rates in a noisy Radio

Frequency (RF) environment.
WMM APSD This is Automatic Power Save Delivery. It saves power.
Beamforming

Transmission (BFR)
Beamforming

Reception (BFE)

Enable beamforming signal enhance for wireless

transmission.

Enable beamforming signal enhance for wireless reception.

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6.13.7 Basic 5GHz

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 configure the basic wireless options.

Consult the table below for descriptions of these options.

Option Description

Enable
Wireless

Hide Access
Point

SSID
[1-32

characters]

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

Select Hide Access Point to protect the access point from detection by
wireless active scans. To check AP status in Windows XP, open

Network Connections from the start Menu and select View
Available Network 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
configuration.

Sets the wireless network name. SSID stands for Service Set
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
granted access.

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Option Description

BSSID The BSSID is a 48-bit identity used to identify a particular BS S (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, the BSSID is
generated randomly.

Channel Drop-down menu that allows selection of a specific channel.

Encryption The encryption mode used for the wireless LAN interface.
Passphrase Enter a passphrase of at least 8 digits is required for WP A2 mode and

mixed mode wireless encryption.

Enable
Guest SSID

Click Enable Guest SSID to enable an additional SSID to provide
varied access.

6.13.8 WPS 5GHz

Refer to 6.13.3 for WPS setup procedure.
WPS can be disabled / enabled by selecting the corresponding option and click

“Apply/Save”

a. When enabled in configured mode, use Push button or PIN to allow client

connection.

To activate Push button, click on the “Add Enrollee PBC” button or use the 5G Wifi
On/Off & WPS button on the front panel.

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Enter the STA PIN and click the “Add Enrollee PIN” button to active PIN mode
connection

b. When enabled in unconfigured mode, enter the Device PIN to the external

registrar for PIN mode setup.

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6.13.9 MAC Filter 5GHz

This page is used to set allowed MAC addresses, and click the associated button for
each interface to enable/disable the MAC address control.
The current MAC control status is shown on the associated buttons.

After clicking the Add button, the following screen appears.

Enter the MAC address in the box provided and click Apply/Save.

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6.13.10 Advanced 5GHz

This page allows you to configure advanced features of the wireless LAN int erface.
Click Apply/Save to configure the basic wireless options.

Field Description

Bandwidth

Beacon Interval The amount of time between beacon transmissions in

DTIM Interval Delivery T raffic Indication Message (DTIM) is also known as

Short GI Enable/Disable use of short guard interval.

Select the bandwidth used on the 5G interface. 80MHz is

selected by default.

milliseconds. The default is 100 ms and the acceptable

range is 1 – 65535. The beacon transmissions identify the

presence of an access point. By default, network devices

passively scan all RF channels listening for beacons coming

from access points. Before a station enters power save

mode, the station needs the beacon interval to know when

to wake up to receive the beacon (and learn whether there

are buffered frames at the access point).

Beacon Rate. The entry range is a value between 1 and

65535. A DTIM is a countdown variable that informs clients

of the next window for listening to broadcast and multicast

messages. When the AP has buffered broadcast or

multicast messages for associated clients, it sends the next

DTIM with a DTIM Interval value. AP Clients hear the

beacons and awaken to receive the broadcast and

multicast messages. The default is 1.

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Chapter 7 Voice

This chapter first describes the various options for configuration of the SIP voice
service. It then provides detailed instructions for making telephone calls using VoIP
(Voice over IP) or PSTN (Public Switched Telephone Network) services. Session
Initiation Protocol (SIP) is a peer-to-peer protocol used for Internet conferencing,
telephony, events notification, presence and instant messaging.
SIP is designed to address the functions of signaling and session management
within a packet telephony network. Signaling allows call information to be carried
across network boundaries. Session management provides the ability to control
the attributes of an end-to-end call.





NOTE: The SIP standard is set by the Internet Engineering Task Force (IETF).

The SIP standard defines the following agents/servers:

• User Agents (UA) - SIP phone clients (hardware or software)

• Proxy Server – relays data between UA and external servers

• Registrar Server - a server that accepts register requests from UA

• Redirect Server – provides an address lookup service to UA

The following subsections present Basic, Advanced and Debug SIP screens.

Each screen provides various options for customizing the SIP configuration.

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7.1 SIP Basic Setting – Global Parameters

A common parameter setting.

Bound Interface Name:

Select a WAN interface to send SIP control messages.

IP Address Family:

Select to use IPv4 or IPv6 for VoIP messages.



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7.2 SIP Basic Setting – Service Provider

Enter the SIP parameters and click Start/Stop to save the parameters and start/stop
the voice application.



Once settings are configured click Apply to begin using the service.



Field Description

Locale Selection Sets tone, ring type and physical

characteristics for specific countries.

SIP domain name Provided by your VoIP provider.

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Field Description

VoIP Dialplan Setting A dial plan establishes the expected sequence

of digits dialed on subscriber premises
equipment, such as telephones, in private
branch exchange (PBX) systems, or in other
telephone switches to effect access to specific
telephone networks for telephone calls, and
to effect or activate specific telephone system
features.
In private branch exchanges in the U.S . a dial
plan may specify the dialing for the following
destinations:

• Internal extension numbers of two,
three, or four digits.

• Local numbers of seven or ten digits,
which may be preceded by a 9, if

Use SIP proxy

required to access an outside line.

• Long distance numbers of eleven
digits, consisting of a 1, a three-digit
area code, and a seven-digit number;
preceded by a 9 if required.

• International numbers of any length
starting with 011 and preceded by a 9
if required.

Similarly, telephony service operators may
provide dialing sequences for special
services, such as directory assistance and
emergency services.
PBX equipment, carrier switching systems, or
end-user telephones may specify a
variable-length dial plan or a fixed-length dial
plan.

Enable the SIP proxy by selecting the
checkbox  and setting proxy parameters.

SIP Proxy Input IP address or domain name of the SIP

proxy server, used for VoIP service.

SIP Proxy port This value is set by your VoIP provider.

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Field Description

Enable the SIP outbound proxy by selecting

Use SIP Outbound Proxy

the checkbox  and setting outbound proxy
parameters. It forwards the requests if you
cannot reach SIP proxy directly.

SIP Outbound Proxy port This value is set by your VoIP provider.

Use SIP Registrar

SIP Registrar

Enable the SIP Registrar proxy by selecting
the checkbox 

Input IP address or domain name of the SIP
proxy server, used for VOIP service.

SIP Registrar Port This value is set by your VoIP provider.

FYI: A proxy is an intermediary program that acts as both a server a nd a client
for the purpose of making requests on behalf of other clients. Requests are
serviced internally or transferred to other servers. A proxy interprets and, if
necessary, rewrites a request message before forwarding it.

SIP Account 1 & 2 Ports FXS1 & FXS2

SIP Account Map SIP accounts to physical ports. “0”

represents to FXS1 and “1” represents to
FXS2.

Extension The line extension number.

Display Name The caller ID display name.

Authentication Name The authentication username for the

Registrar/Proxy, given by VoIP provider.

Authentication Password The authentication password for the

Registrar/proxy, given by VoIP provider.

Physical Terminal Assignment Connect the FXS port to the physical port.

Preferred ptime The time period used to digitally sample the

analog voice signal. The default is 20 ms.

Preferred codec 1-6 Choose from G.711MuLaw/ALaw, G.729a,

G.723.1, G.726_24/32, or GSM_AMR codecs

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7.3 SIP Advanced Setting – Global Parameters

This screen contains the advanced SIP configuration settings.

135

7.4 SIP Advanced Setting – Service Provider

Configure your settings based on your service provider.



These settings are described in the tables below. Once configuration is complete,
click Apply to begin using the service.

NOTE: Some of these options can also be set using telephone k eypad commands,

as described in the call command list in section 7.7 Telephone Calls

Line 1 & 2 Ports FXS1 & FXS2

Call waiting

Tick the checkbox  to enable this option.

136

Line 1 & 2 Ports FXS1 & FXS2

Call forwarding number Enter the forwarding phone number.

Forward unconditionally Tick the checkbox  to enable this option.

Forward on “busy” Tick the checkbox  to enable this option.

Forward on “no answer” Tick the checkbox  to enable this option.

Call barring Tick the checkbox  to enable this option.

Call Barring allows you to bar certain types of calls from
being made from your phone and also allows you to bar
incoming calls.

Call barring pin The default setting for the Call Barring PIN code is the

same as the four-digit PIN code.

Call barring digit map Set the dial plan for call barring.

Warm line When the Warm Li ne function is in use, the user can di al

a number. Otherwise th e system will divert incoming
calls from an outside line to the Warm Line Number after
a set wait time.

Warm line number Define warm line number.

Anonymous call blocking Tick the checkbox  to enable this option.

Anonymous calling Tick the checkbox  to enable this option.

DND (Do Not Disturb) Tick the checkbox  to enable this option.



Enable T38 support Enable or disable T38 Fax mode support with this

checkbox . You can plug a fax machine into either
phone port to send or receive faxes. Functionality
depends upon FAX support by your VoIP service
provider.

Enable V18 support Enable or disable for V18 support with this checkbox .

Registration Expire
Timeout

The time period the user would like the registration to
be valid for the Registrar/ Proxy Server. The default is
3600 seconds.

137

Registration Retry
Interval

DSCP for SIP Diff Serv Code Point (DSCP) for SIP.

DSCP for RTP Diff Serv Code Point (DSCP) for RTP.

Dtmf Relay setting Set the special use of RTP packets to transmit digit

Hook Flash Relay setting Set flash hook event will be sent via which signal.

SIP Transport protocol SIP control message will be sent via which prot ocol.

SRTP Configuration Enable or disable for Security RTP support.

RFC 2198 Redundant
Level Configuration

Enable SIP tag matching
(Uncheck for Vonage
Interop).

The time interval between re-registration attempts.

events.

Enable or disable for RFC 2198 support.

Since CPE rely on the tags for matching purposes,
implementations which support Replacements MUST
support the SIP specification, which requires tags.

Music Server Set music server address for on-hold state.

Music Server port Set music server port for on-hold state.

Conference URI Set conference URI.

Conference Option Set conference option.

Secondary Outbound
Proxy IP

Secondary Outbound
Proxy Port

Set secondary outbound address.

Set secondary outbound port.

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7.5 SIP Debug Setting – Global Parameters

A common parameter setting.

Vodsl Console Log Level:

The log level allows users select what message will be shown in the log. It is
separated into 3 levels (Error, Notice and Debug).





139

7.6 SIP Debug Setting – Service Provider

Configure your settings based on your service provider.

Once settings are configured, click Apply to begin using the service.



Checkbox  Description

SIP log server
IP address & port

Enable Vad Support

Ingress gain Enhances the volume of speaking (the volume

Egress gain Enhances the volume of hearing.

Enter the IP address and port of the SIP log server.

Select the checkbox  to enable VAD support.
Adjust the volume for incoming (Ingress) or
outgoing (Egress) gain with the drop-down boxes.

heard from the other side).



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7.7 Telephone Calls

To make a call, simply dial the number. The dial plan (i.e. the dialed digits) is
normally customized for each installation. The default dial plan allows for dialing of
4-digit extensions or direct IP addresses. For shorter extension numbers (e.g.
3-digits) adding a “#” at the end.
When a Call Server (SIP Proxy Server) is configured into the system, the dialed
digits are translated and routed by the Call Server to the correct destination as
registered with the Call Server.
If no Call Server is configured, calls can still be made using 4-digit extensions,
rather than using full IP addresses. The originator translates the dialed-digits to a
destination device as follows:

First Digit: Line identifier (for multi-line gateways)
Remaining digits: Host number part of an IP address. The Network number part

is considered to be the same as the caller’s IP address.

For example, if a caller at address 10.136.64.33/24 dials “2023”, the call will be
placed to the second line at address 10.136.64.23. All devices have to be on the
same Class C subnet (24-bit subnet mask).

T o dial an IP address directly, dial the IP address digits using * on the keypad as the
dot. Complete the address with a final * or #. When using IP address dialing it is not
possible to specify which line at a gateway is called, so the gateway always routes
IP-address dialed calls to the first line.
Network busy tone (fast busy) will be played for unknown or unreachable
destinations. To answer a call, pick up the phone or press the hands free button.

Caller ID

The Call Manager delivers Calling Number when placing calls. The calling number is
transmitted to the analog line for CLASS recognition.

Call Hold

To put a call on hold, press flash then hang up (optional). To return to the original
call, press flash or pick up the phone. The phone will issue a short ring burst every
30 seconds or so while on-hook to remind you that a call is on hold.

Call Transfer

• To transfer a call, press flash then dial the new number.

• To transfer immediately, hang up (blind transfer).

• T o transfer with cons ultation, wait for the party to answer, consult, and hang up.

• T o abort the transfer (if the third party does not answer); press fl ash to return to

the original call.

Conference Calling

To turn a two-party call into a three-party conference call, press flash and dial the
third party . Wait for the party to answer , then press flash. To drop the third party and
return to a two-party call, press flash again. T o drop yourself out of the conference,
hang up. The call will be tr ansferred (so that the other two parties remain connected
to each other). In conference mode, the conference initiator performs the audio
bridge/mixing function – there are only two voice streams established.

141

Call Waiting

If call waiting is enabled on a line, and you hear the call waiting tone during a call,
press flash to answer the second call. The first call is automatically placed on hold.
To switch between calls, press flash again.



• To disable the call waiting feature, dial *60.

• To enable the call waiting feature, dial *61.

Call forward feature settings (Busy or All) takes priority over the call-waiting feature.
The call-waiting feature is ignored on new incoming calls if there is already a call on
hold or in conference.

Call Forward Number

• T o set the call forward number, dial *74 then the number . Note that this does not
actually enable forwarding; to do so, select the call forward action as described
below.

• To disable all call forwarding features, dial *70

Call Forward No Answer

• T o enable call forward on no answer, dial *71. Incoming calls will be forwarded
if unanswered for 18 seconds.

Call Forward Busy

• To enable call forward if busy, dial *72. Incoming calls will be immediately
forwarded if the phone is off-hook.

Call Forward All

• To enable call forward for all calls, dial *73.

• To disable the “forward all calls” feature, dial *75.

Previous settings for Call Forward Busy or No Answer are not modified.

Call Return

• To call the last known incoming caller (unanswered or not), dial *69.

Redial

• To redial the last outgoing number, dial *68.

VoIP to PSTN

• To dial a regular phone call over PSTN, you must first dial ##.

142

Chapter 8 Diagnostics

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

8.1 Diagnostics – Individual Tests

The first Diagnostics screen is a dashboard that shows overall connection status.

Click the Diagnostics Menu item on the left side of the screen to display the
individual connections.

143

8.2 Ethernet OAM

The Ethernet OAM page provides settings to enable/disable 802.3ah,

802.1ag/Y1.731 OAM protocols.

To enable Ethernet Link OAM (802.3 ah), click Enabled to display the full
configuration list. At least one option must be enabled for 802.1ah.

WAN Interface
OAM ID OAM Identification number
Auto Event Supports OAM auto event
Variable Retrieval Supports OAM variable retrieval
Link Events Supports OAM link events
Remote Loopback Supports OAM remove loopback
Active mode Supports OAM active mode

 Select layer 2 WAN interface for outgoing OAM packets

144

To enable Ethernet Service OAM (802.1ag/Y1731), click Enabled to display the full
configuration list.

Click Apply/Save to apply and save the settings.
WAN Interface

MD Level Maintenance Domain Level
MD Name Maintenance Domain name
MA ID Maintenance Association Identifier
Local MEP ID Local Maintenance association End Point Identifier
Local MEP VLAN ID VLAN IP used for Local Maintenance End point

Click CCM Transmission to enable CPE sending Continuity Check Message (CCM)
continuously.

Remote MEP ID

To perform Loopback/Linktrace OAM test, enter the Target MAC of the destination
and click “Send Loopback” or “Send Linktrace” button.

Target MAC
Linktrace TTL Time to Live value for the loopback/linktrace packet

Select from the list of WAN Interfaces to send OAM packets

Maintenance association End Point Identifier for the remote

receiver

MAC Address of the destination to send OAM

loopback/linktrace packet

145

8.3 Uptime Status

This page shows System, DSL, ETH and Layer 3 uptime. If the DSL line, ETH or Layer
3 connection is down, the uptime will stop incrementing. If the service is restored,
the counter will reset and start from 0. A Bridge interface will follow the DSL or ETH
timer.

The "ClearAll" button will restart the counters fro m 0 or show "Not Connected" if the
interface is down.

146

8.4 Ping

Input the IP address/hostname and click the Ping button to execute ping diagnostic
test to send the ICMP request to the specified host.

147

8.5 Trace Route

Input the IP address/hostname and click the TraceRoute button to execute the
trace route diagnostic test to send the ICMP packets to the specified host.

148

Chapter 9 Management

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

The Management menu has the following maintenance functions and processes:

9.1 Settings

This includes Backup Settings, Update Settings, and Restore Default screens.

9.1.1 Backup Settings

T o sa ve the current configuration to a file on your PC, click Backup Settings. You
will be prompted for backup file location. This file can later be used to recover
settings on the Update Settings screen, as described below.

149

9.1.2 Update Settings

This option recovers configuration files previously saved using Backup Settings.
Enter the file name (including folder path) in the Settings File Name box, or press

Browse… to search for the file, then click Update Settings to recover settings.

9.1.3 Restore Default

Click Restore Default Settings to restore factory default settings.

After Restore Default Settings is clicked, the following screen appears.

Close the browser and wait for 2 minutes before reopening it. It may also be
necessary, to reconfigure your PC IP configuration to match any new settings.

150

NOTE: This entry has the same effect as the Reset button. The NexusLink 3240

board hardware and the boot loader support the reset to default. If the
Reset button is continuously pressed for more than 10 seconds, the
current configuration data will be erased. If the Reset button is
continuously pressed for more than 60 seconds, the boot loader will erase
all configuration data saved in flash memory and enter bootloader mode.

151

9.2 System Log

This function allows a system log to be kept and viewed upon request.
Follow the steps below to configure, enable, and view the system log.

STEP 1: Click Configure System Log, as shown below (circled in Red).

STEP 2: Select desired options and click Apply/Save.

Consult the table below for detailed descriptions of each system log option.

Option Description

Log Indicates whether the system is currently recording events. The user

can enable or disable event logging. By default, it is disabled. To
enable it, select the Enable radio button and then click Apply/Save.

152

Option Description

Log
Level

Allows you to configure the event level and filter ou t unwanted events
below this level. The events ranging from the highest critical level
“Emergency” down to this configured level will be recorded to the log
buffer on the NexusLink 3240 SDRAM. When the log buffer is full, the
newer event will wrap up to the top of the log buffer and overwrite the old
event. By default, the log level is “Debugging”, which is the lowest critical
level.

The log levels are defined as follows:

• Emergency = system is unusable

• Alert = action must be taken immediately

• Critical = critical conditions

• Error = Error conditions

• Warning = normal but significant condition

• Notice= normal but insignificant condition

• Informational= provides information for reference

• Debugging = debug-level messages

Emergency is the most serious event level, whereas Debugging is the
least important. For instance, if the log level is set to Debugging, all the
events from the lowest Debugging level to the most critical level
Emergency level will be recorded. If the log level is set t o Error, only
Error and the level above will be logged.

Display
Level

Allows the user to select the logged events and displays on the View
System Log window for events of this level and above to the highest
Emergency level.

Mode Allows you to specify whether events should be stored in the local

memory, or be sent to a remote system log server, or both
simultaneously. If remote mode is selected, view system log will not be
able to display events saved in the remote system log server.
When either Remote mode or Both mode is configured, the WEB UI will
prompt the user to enter the Server IP address and Server UDP port.

STEP 3: Click View System Log. The results are displayed as follows.

153

9.3 SNMP Agent

Simple Network Management Protocol (SNMP) allows a management application to
retrieve statistics and status from the SNMP agent in this device. Select the
Enable radio button, configure options, and click Save/Apply to activate SNMP.

154

9.4 TR-069 Client

WAN Management Protocol (TR -069) allows an A uto-Configur ation Se rver (ACS) to
perform auto-configuration, provision, collection, and diagnostics to this device.
Select desired values and click Apply/Save to configure TR-069 client options.

The table below is provided for ease of reference.

Option Description

Enable TR-069 Tick the checkbox  to enable.
OUI-serial The serial number used to identify the CPE when making a

connection to the ACS using the CPE WAN Management
Protocol. Select MAC to use the router’s MAC address as
serial number to authenticate with ACS or select serial

number to use router’s serial number.
Inform Disable/Enable TR-069 client on the CPE.
Inform Interval The duration in seconds of the interval for which the CPE

MUST attempt to connect with the ACS and call the Inform

method.
ACS URL URL for the CPE to connect to the ACS using the CPE WAN

Management Protocol. This parameter MUST be in the form

of a valid HTTP or HTTPS URL. An HTTPS URL indicates that

the ACS supports SSL. The “host” portion of this URL is

used by the CPE for validating the certificate from the ACS

when using certificate-based authentication.

155

Option Description

ACS User Name Username used to authenticate the CPE when making a

connection to the ACS using the CPE WAN Management

Protocol. This username is used only for HTTP-based

authentication of the CPE.
ACS Password Password used to authenticate the CPE when making a

connection to the ACS using the CPE WAN Management

Protocol. This password is used only for HTTP-based

authentication of the CPE.
WAN Interface used

by TR-069 client
Connection Request
Authentication Tick the checkbox  to enable.
User Name Username used to authenticate an ACS making a

Password Password used to authenticate an ACS making a

URL IP address and port the ACS uses to connect to router.

The Send Inform button forces the CPE to establish an immediate connection to
the ACS.

Choose Any_WAN, LAN, Loopback or a configured

connection.

Connection Request to the CPE.

Connection Request to the CPE.

156

9.5 Internet Time

This option automatically synchronizes the router time with Internet timeservers.
To enable time synchronization, tick the corresponding checkbox , choose your
preferred time server(s), select the correct time zone offset, and click Apply/Save.

NOTE: Internet Time must be activated to use See 5.5 Parental Control.
The internet time feature will not operate when router is in bridged mode, since the
route would not be able to connect to the NTP timeserver.

157

9.6 Access Control

9.6.1 Accounts

This screen is used to configure the user account access passwords for the device.
Access to the NexusLink 3240 is controlled through the following user accounts:

• The root account has unrestricted access to view and change the
configuration of your Broadband router.

• The support account is typically utilized by Carrier/ISP technicians for
maintenance and diagnostics.

• The user account is typically utilized by End-Users to view configuration
settings and statistics, with limited ability to configure certain settings.

• The apuser account is typically util ized by End-Users to vi ew configur ation
settings and statistics, with limited ability to configure wireless settings.

Use the fields to update passwords for the accounts, add/remove accounts (max of
5 accounts) as well as adjust their specific privileges.

158

Note: Passwords may be as long as 16 characters but must not contain a space.
Click Save/Apply to continue.

159

9.6.2 Services

The Services option limits or opens the access services over the LAN or WAN. The
access services available are: HTTP, SSH, TELNET, SNMP , HTTPS , FTP , TFTP and ICMP.
Enable a service by selecting its dropdown listbox. Click Apply/Save to activat e.

160

9.6.3 IP Address

The IP Address Access Control mode, if enabled, permits access to local
management services from IP addresses contained in the Access Control List. If the
Access Control mode is disabled, the system will not validate IP addresses for
incoming packets. The services are the system applications listed in the Service
Control List beside ICMP.

Click the Add button to display the following.

Configure the address and subnet of the management station permitted to access
the local management services, and click Save/Apply.

IP Address – IP address of the management station.
Subnet Mask – Subnet address for the management station.
Interface – Access permission for the specified address, allowing the address to

access the local management service from none/lan/wan/lan&wan interfaces.

161

9.7 Wake-on-LAN

This tool allows you to wake up (power on) computers connected to the Broadband
Router LAN interface by sending special "magic packets".
The network interface card in the computer or device that is going to be woken up
must support Wake-on-LAN.

LAN Interface – Select the LAN interface to send the Wake-on-LAN packet.
MAC Address – Specify the MAC address of the device that is going to be woken up.

Click “Send WoL magic packet to the Broadcast address” if the WoL packets
should be sent to the broadcast address.

Click the Wake Up! button to send the magic packet out to the LAN interface.

162

9.8 Update Software

This option allows for firmware upgrades from a locally stored file.

STEP 1: Obtain an updated software image file from your ISP.
STEP 2: Select the configuration from the drop-down menu.

Configuration options:
No change – upgrade software directly.
Erase current config – If the router has save_default configuration, this option will

erase the current configuration and restore to save_default configuration after
software upgrade.

Erase All – Router will be restored to factory default configuration after software
upgrade.

STEP 3: Enter the path and filename of the firmware image file in the Software

File Name field or click the Browse button to locate the image file.

STEP 4: Click the Update Software button once to upload and install the file.

NOTE: The update process will take about 2 minutes to complete. The device

will reboot and the browser window will refresh to the default screen upon
successful installation. It is recommended that you compare the
Software Version on the Device Information screen with the firmware
version installed, to confirm the installation was successful.

163

9.9 Reboot

To save the current configuration and reboot the router, click Reboot.

NOTE: You may need to close the browser window and wait for 2 minutes before

reopening it. It may also be necessary, to reset your PC IP configuration.

164

Chapter 10 Logout

To log out from the device simply click the following icon located at the top of your
screen.

When the following window pops up, click the OK button to exit the router.

Upon successful exit, the following message will be displayed.

165

Appendix A - Firewall

STATEFUL PACKET INSPECTION

Refers to an architecture, where the firewall keeps track of packets on each
connection traversing all its interfaces and makes sure they are valid. This is in
contrast to static packet filtering which only examines a packet based on the
information in the packet header.

DENIAL OF SERVICE ATTACK

Is an incident in which a user or organization is deprived of the services of a
resource they would normally expect to have. Various DoS attacks the device can
withstand are ARP Attack, Ping Attack, Ping of Death, Land, SYN Attack, Smurf
Attack, and Tear Drop.

TCP/IP/PORT/INTERFACE FILTER

These rules help in the filtering of traffic at the Network layer (i.e. Layer 3).
When a Routing interface is created, Enable Firewall must be checked.
Navigate to Advanced Setup  Security  IP Filtering.

OUTGOING IP FILTER

Helps in setting rules to DROP packets from the LAN interface. By default, if the
Firewall is Enabled, all IP traffic from the LAN is allowed. By setting up one or more
filters, specific packet types coming from the LAN can be dropped.

Example 1

This filter will Drop all TCP packets coming from the LAN with IP
Address/Subnet Mask of 192.168.1.45/24 having a source port of 80
irrespective of the destination. All other packets will be Accepted.

Example 2

This filter will drop all UDP packets coming from the LAN with IP Address /
Subnet Mask of 192.168.1.45/24 and a source port range of 5060 to 6060,
destined to 172.16.13.4/24 and a destination port range of 6060 to 7070.

: Filter Name : Out_Filter1

Protocol : TCP
Source IP address : 192.168.1.45
Source Subnet Mask : 255.255.255.0
Source Port : 80
Dest. IP Address : NA
Dest. Subnet Mask : NA
Dest. Port : NA

: Filter Name : Out_Filter2

Protocol : UDP
Source IP Address : 192.168.1.45
Source Subnet Mask : 255.255.255.0
Source Port : 5060:6060
Dest. IP Address : 172.16.13.4
Dest. Subnet Mask : 255.255.255.0
Dest. Port : 6060:7070

INCOMING IP FILTER

Helps in setting rules to Allow or Deny packets from the WAN interface. By default,
all incoming IP traffic from the WAN is Blocked, if the Firewall is Enabled. By setting
up one or more filters, specific packet types coming from the WAN ca n be Accepted.

166

Example 1: Filter Name : In_Filter1

Protocol : TCP
Policy : Allow
Source IP Address : 210.168.219.45
Source Subnet Mask : 255.255.0.0
Source Port : 80
Dest. IP Address : NA
Dest. Subnet Mask : NA
Dest. Port : NA
Selected WAN interface : br0

This filter will ACCEPT all TCP packets coming from WAN interface “br0” with I P
Address/Subnet Mask 210.168.219.45/16 with a source port of 80, irrespective
of the destination. All other incoming packets on this interface are DROPPED.

Example 2

: Filt er Name : In_Filter2

Protocol : UDP
Policy : Allow
Source IP Address : 210.168.219.45
Source Subnet Mask : 255.255.0.0
Source Port : 5060:6060
Dest. IP Address : 192.168.1.45
Dest. Sub. Mask : 255.255.255.0
Dest. Port : 6060:7070
Selected WAN interface : br0

This rule will ACCEPT all UDP packets coming from WAN interface “br0” with IP
Address/Subnet Mask 210.168.219.45/16 and a source port in the range of
5060 to 6060, destined to 192.168.1.45/24 and a destination port in the range
of 6060 to 7070. All other incoming packets on this interface are DROPPED.

MAC LAYER FILTER

These rules help in the filtering of Layer 2 traffic. MAC Filtering is only effective in
Bridge mode. After a Bridge mode connection is created, navigate to Advanced
Setup  Security  MAC Filtering in the WUI.

Example 1

: Global Policy : Forwarded

Protocol Type : PPPoE
Dest. MAC Address : 00:12:34:56:78:90
Source MAC Address : NA
Src. Interface : eth1
Dest. Interface : eth2

Addition of this rule drops all PPPoE frames going from eth1 to eth2 with a
Destination MAC Address of 00:12:34:56:78:90 irrespective of its Source MAC
Address. All other frames on this interface are forwarded.

Example 2

: Global Policy : Blocked

Protocol Type : PPPoE
Dest. MAC Address : 00:12:34:56:78:90
Source MAC Address : 00:34:12:78:90:56
Src. Interface : eth1
Dest. Interface : eth2

Addition of this rule forwards all PPPoE frames going from eth1 to eth2 with a
Destination MAC Address of 00:12:34:56:78 and Source MAC Address of
00:34:12:78:90:56. All other frames on this interface are dropped.

167

DAYTIME PARENTAL CONTROL

This feature restricts access of a selected LAN device to an outside Network through
the NexusLink 3240, as per chosen days of the week and the chosen times.

Example

: User Name : FilterJohn

Browser's MAC Address : 00:25:46:78:63:21
Days of the Week : Mon, Wed, Fri
Start Blocking Time : 14:00
End Blocking Time : 18:00

With this rule, a LAN device with MAC Address of 00:25:46:78:63:21 will have
no access to the WAN on Monda ys, Wednesdays, and Fridays, from 2p m to 6pm.
On all other days and times, this device will have access to the outside
Network.

168

Appendix B - Pin Assignments

Giga ETHERNET Ports (RJ45)

Pin Name Description

1 BI_DA+ Bi-directional pair A +
2 BI_DA- Bi-directional pair A ­3 BI_DB+ Bi-directional pair B +
4 BI_DC+ Bi-directional pair C +
5 BI_DC- Bi-directional pair C ­6 BI_DB- Bi-directional pair B ­7 BI_DD+ Bi-directional pair D +
8 BI_DD- Bi-directional pair D -

169

Appendix C – Specifications

Hardware Interface

RJ-14 X 1 for ADSL2+ bonding/VDSL2, RJ-45 X 4 for LAN, RJ-45 X 1 for W AN,
FXS X 2, Reset Button X 1, WPS/WiFi on/off button x2, Internal Wi-Fi
Antennas X 2, External Wi-Fi Antennas X 2, Power Switch X 1, USB 3 .0 Host
X 1

WAN Interface

ADSL2+: single line and bonding
VDSL2 17a, single line and bonding
10/100/1000 Base T, IEEE 802.3, IEEE 802.3u IEEE 802.3ab

LAN Interface

Standard ..................... IEEE 802.3, IEEE 802.3u, IEEE 802.3ab

10/100/1000 BaseT ...... Auto-sense

MDI/MDX support ......... Yes

WLAN Interface

Standard ................... IEEE802.11b/g/n

Encryption................... 64/128-bit Wired Equivalent Privacy (WEP)

Channels ..................... 11 (US, Canada)/ 13 (Europe)/ 14 (Japan)

Data Rate ................... Up to 300Mbps

WEP ........................... Yes

WPA ........................... Yes

IEEE 802.1x ................ Yes

MAC Filtering ............... Yes

ATM Attributes

RFC 2684 (RFC 1483) Bridge/Route; RFC 2516 (PPPoE);
RFC 2364 (PPPoA); RFC 1577 (IPoA)

PVCs ......................... 16

AAL type ..................... AAL5

ATM service class ......... UBR/CBR/VBR

ATM UNI support .......... UNI 3.1/4.0

OAM F4/F5 .................. Yes

Management

Compliant with TR-069/TR-098/TR-104/TR-111 remote management
protocols, Telnet, Web-based management, Configuration backup and
restoration, Software upgrade via HTTP / TFTP / FTP server

Bridge Functions

Transparent bridging .............................. Yes

VLAN support ....................................... Yes

Spanning Tree Algorithm ........................ Yes

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IGMP Proxy .......................................... Yes

Routing Functions

Static route, RIP v1/v2, NAT/PAT, DHCP Server/Relay, DNS Proxy, ARP,

Security Functions

Authentication protocols: PAP, CHAP
TCP/IP/Port filtering rules, Packet and MAC address filtering, Access Control,

QoS

IP QoS, L3 policy-based QoS, ToS

Environment Condition

Operating temperature ........................... 0 ~ 40 degrees Celsius

Relative humidity .................................. 5 ~ 95% (non-condensing)

Dimensions .................................... 280 mm (W) x 35 mm (H) x 210 mm (D)

Kit Weight

(1* NexusLink 3240, 1*RJ11 cable, 1*RJ45 cable, 1*power adapter) = 1.2 kg

NOTE: Specifications are subject to change without notice.

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Appendix D - SSH Client

Unlike Microsoft Windows, Linux OS has a ssh client included . For Windows users,
there is a public domain one called “putty” that can be downloaded from here:

http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html

To access the ssh client you must first enable SSH access for the LAN or WAN from
the Management  Access Control  Services menu in the web user interface.

To access the router using the Linux ssh client
For LAN access, type: ssh -l root 192.168.1.1

For WAN access, type: ssh -l support WAN IP address

To access the router using the Windows “putty” ssh client
For LAN access, type: putty -ssh -l root 192.168.1.1

For WAN access, type: putty -ssh -l support WAN IP address

NOTE: The WAN IP address can be found on the Device Info  WAN screen

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Appendix E - Printer Server

These steps explain the procedure for enabling the Printer Server.

NOTE: This function only appli es to models with a USB host port.

STEP 1: Enable Print Server from Web User Interface. Select Enable on-board

print server checkbox  and enter Printer name and Make and model.
Click the Apply/Save button.

NOTE: The Printer name can be any text string up to 40 characters.
The Make and model can be any text string up to 128 characters.

STEP 2: Go to the Printers and Faxes application in the Control Panel and

select the Add a printer function (as located on the side menu below).

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STEP 3: Click Next to continue when you see the dialog box below.

STEP 4: Select Network Printer and click Next.

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STEP 5: Select Connect to a printer on the Internet and enter your printer link.
(e.g. http://192.168.1.1:631/printers/hp3845) and click Next.

NOTE: The printer name must be the same name entered in the ADSL modem

WEB UI “printer server setting” as in step 1.

STEP 6: Click Have Disk and insert the printer driver CD.

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STEP 7: Select driver f ile directory on CD-ROM and click OK.

STEP 8: Once the printer name appears, click OK.

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STEP 9: Choose Yes or No for default printer setting and click Next.

STEP 10: Click Finish.

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STEP 11: Check the status of printer from Windows Control P anel, prin ter window .

Status should show as Ready.

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Appendix F - Connection Setup

Creating a WAN connection is a two-stage process.

1 - Setup a Layer 2 Interface (ATM, PTM or Ethernet).
2 - Add a WAN connection to the Layer 2 Interface.

The following sections describe each stage in turn.

F1 ~ Layer 2 Interfaces

Every layer2 interface operates in Multi-Service Connection (VLAN MUX) mode,
which supports multiple connections over a single interface. Note that PPPoA and
IPoA connection types are not supported for Ethernet W AN i nterfaces. After adding
WAN connections to an interface, you must also create an Interface Group to
connect LAN/WAN interfaces.

F1.1 ATM Interfaces

Follow these procedures to configure an ATM interface.

NOTE: The NexusLink 3240 supports up to 16 ATM interfaces.

STEP 1: Go to Basic Setup  WAN Setup  Select ATM Interface from

the drop-down menu.

This table is provided here for ease of reference.

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Heading Description

Interface WAN interface name
VPI ATM VPI (0-255)
VCI ATM VCI (32-65535)
DSL Latency {Path0}  portID = 0

{Path1}  port ID = 1

{Path0&1}  port ID = 4
Category ATM service category
Peak Cell Rate Maximum allowed traffic rate for the ATM PCR service

connection
Sustainable Cell

Rate

The average allowable, long-term cell tr ansfer rate on the VBR

service connection
Max Burst Size The maximum allowable burst size of cells that can be

transmitted continuously on the VBR service connection
Link Type Choose EoA (for PPPoE, IPoE, and Bridge), PPPoA, or IPoA.
Connection Mode Default Mode – Single service over one connection

Vlan Mux Mode – Multiple Vlan service over one connection
IP QoS Quality of Service (QoS) status
Remove Select items for removal

STEP 2: Click Add to proceed to the next screen.

NOTE: To add WAN connections to one interface type, you must delete existing

connections from the other interface type using the remove button.

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There are many settings here including: VPI/VCI, DSL Link Type, Encapsulation
Mode, Service Category and Queue Weight.

Here are the available encapsulations for each xDSL Link Type:

 EoA- LLC/SNAP-BRI DG ING, VC/MUX
 PPPoA- VC/MUX, LLC/ENCAPSULATION
 IPoA- LLC/SNAP-ROUTING, VC MUX

STEP 3: Click Apply/Save to confirm your choices.
On the next screen, check that the A TM interfa ce is added to the l ist. For example,

an ATM interface on PV C 0/35 in Default Mode with an EoA Link type is shown below.

181

To add a WAN connection go to Section F2 ~ WAN Connections.

F1.2 PTM Interfaces

Follow these procedures to configure a PTM interface.

NOTE: The NexusLink 3240 supports up to four PTM interfaces.

STEP 1: Go to Basic Setup  WAN Setup  Select PTM Interface from

the drop-down menu.

This table is provided here for ease of reference.

Heading Description

Interface WAN interface name.

182

Heading Description

DSL Latency {Path0}  portID = 0

{Path1}  port ID = 1

{Path0&1}  port ID = 4
PTM Priority Normal or High Priority (Preemption).
Connection Mode Default Mode – Single service over one interface.

Vlan Mux Mode – Multiple Vlan services over one interface.
IP QoS Quality of Service (QoS) status.
Remove Select interfaces to remove.

STEP 2: Click Add to proceed to the next screen.

NOTE: To add WAN connections to one in terface type, you must delete existing

connections from the other interface type using the remove button.

Default PTM interface Quality of Service can be configured here, including Scheduler ,
Queue Weight and Rate Limit.

STEP 3: Click Apply/Save to confirm your choices.
On the next screen, check that the PTM interface is added to the list.
For example, a PTM interface in Default Mode is shown below.

To add a WAN connection go to Section F2 ~ WAN Connections.

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F1.3 Ethernet WAN Interface

The NexusLink 3240 supports a single Ethernet WAN interface over the ETH WAN
port. Follow these procedures to configure an Ethernet interface.

STEP 1: Go to Basic Setup  WAN Setup  Select ETHERNET Interface

from the drop-down menu.

This table is provided here for ease of reference.

Heading Description

Interface/ (Name) WAN interface name.
Connection Mode Default Mode – Single service over one interface.

Vlan Mux Mode – Multiple Vlan services over one interface.
Remove Select interfaces to remove.

STEP 2: Click Add to proceed to the next screen.

STEP 3: Select an Ethernet port and Click Apply/Save to confirm your choices.

184

On the next screen, check that the ETHERNET interface is added to the list.

To add a WAN connection go to Section F2 ~ WAN Connections.

185

F2 ~ WAN Connections

The NexusLink 3240 supports one WAN connection for each interface, up to a
maximum of 16 connections.

To setup a WAN connection follow these instructions.

STEP 1: Go to Basic Setup  WAN Setup.

STEP 2: Click Add to create a WAN connection. The following screen will display.

STEP 3: Choose a layer 2 interface from the drop-down box and click Next.

The WAN Service Configuration screen will display as shown below.

186

NOTE: The WAN services shown here are those supported by the layer 2

interface you selected in the previous step. If you wish to change your
selection click the Back button and select a different layer 2 interface.

STEP 4: For VLAN Mux Connections only, you must enter Priority & VLAN ID tags.

Select a TPID if VLAN tag Q-in-Q is used.
STEP 5: You will now follow the instructions specific to the WAN service type you

wish to establish. This list should help you locate the correct procedure:

(1) For F2.1 PPP over ETHERNET (PPPoE), go to page 186.
(2) For F2.2 IP over ETHERNET (IPoE), go to page 192.
(3) For F2.3 Bridging, go to page 198.
(4) For F2.4 PPP over ATM (PPPoA), go to page 200.
(5) For F2.5 IP over ATM (IPoA), go to page 206.

The subsections that follow continue the WAN service setup procedure.

187

F2.1 PPP over ETHERNET (PPPoE)

STEP 1: Select the PPP over Ethernet radio button and click Next. You can also

enable IPv6 by selecting from the drop-down box at the bottom of this
screen.

STEP 2: On the next screen, enter the PPP settings as provided by your ISP.

Click Next to continue or click Back to return to the previous step.

188

Click Next to continue or click Back to return to the previous step.
The settings shown above are described below.

PPP SETTINGS

The PPP Username, PPP password and the PPPoE Service Name entries are
dependent on the particular requirements of the ISP. The user name can be a
maximum of 256 characters and the password a maximum of 32 characters in
length. For Authentication Method, choose from AUTO, PAP, CHAP, and MSCHAP.

189

ENABLE FULLCONE NAT

This option becomes available when NAT is enabled. Known as one-to-one NAT, all
requests from the same internal IP address and port are mapped to the same
external IP address and port. An external host can send a packet to the internal host,
by sending a packet to the mapped external address.

DIAL ON DEMAND

The NexusLink 3240 can be configured to disconnect if there is no activity for a
period of time by selecting the Dial on demand checkbox . You must also e nter
an inactivity timeout period in the range of 1 to 4320 minutes.

PPP IP EXTENSION

The PPP IP Extension is a special feature deployed by some service providers.
Unless your service provider specifically requires this setup, do not select it.

PPP IP Extension does the following:

• Allows only one PC on the LAN.

• Disables NAT and Firewall.

• The device becomes the default gateway and DNS server to the PC

through DHCP using the LAN interface IP address.

• The device extends the IP subnet at the remote service provider to the
LAN PC. i.e. the PC becomes a host belonging to the same IP subnet.

• The device bridges the IP packets between WAN and LAN ports, unless
the packet is addressed to the device’s LAN IP address.

• The public IP address assigned by the remote side using the PPP/IPCP
protocol is actually not used on the WAN PPP interface. Instead, it is
forwarded to the PC LAN interface through DHCP. Only one PC on the
LAN can be connected to the remote, since the DHCP server within the
device has only a single IP address to assign to a LAN device.

ENABLE NAT

If the LAN is configured with a private IP address, the user should select this
checkbox . The NA T submenu will appear in the Advanced Setup menu after reboot.
On the other hand, if a private IP address is no t used on the LAN side (i.e. the LAN
side is using a public IP), this checkbox  should not be selected to free up system
resources for better performance.

ENABLE FIREWALL

If this checkbox  is selected, the Security submenu will be displayed on the
Advanced Setup menu after reboot. If firewall is not necessary, this checkbox 
should not be selected to free up system resources for better performance.

USE STATIC IPv4 ADDRESS

Unless your service provider specially requires it, do not select this checkbox . If
selected, enter the static IP address in the IPv4 Address field.
Don’t forget to adjust the IP configuration to Static IP Mode as described in section

3.2 IP Configuration.

FIXED MTU

Maximum Transmission Unit. The size (in bytes) of largest protocol data unit which
the layer can pass onwards. This value is 1492 for PPPoE.

190

ENABLE PPP DEBUG MODE

When this option is selected, the system will put more PPP connection information
into the system log. This is for debugging errors and not for normal usage.

BRIDGE PPPOE FRAMES BETWEEN WAN AND LOCAL PORTS

(This option is hidden when PPP IP Extension is enabled

)
When Enabled, this creates local PPPoE connections to the WAN side. Enable this
option only if all LAN-side devices are running PPPoE clients, otherwise disable it.
The NexusLink 3240 supports pass-through PPPoE sessions from the LAN side while
simultaneously running a PPPoE client from non-PPPoE LAN devices.

ENABLE IGMP MULTICAST PROXY

Tick the checkbox  to enable Internet Group Membership Protocol (IGMP)
multicast. This protocol is used by IPv4 hosts to report their multicast group
memberships to any neighboring multicast routers.

Enable IGMP Multicast Source

Enable the WAN interface to be used as IGMP multicast source.

STEP 3: Choose an interface to be the default gateway.

Click Next to continue or click Back to return to the previous step.

191

STEP 4: Select DNS Server Interface from available WAN interfaces OR enter
static DNS server IP addresses for the system. In ATM mode, if only a
single PVC with IPoA or static IPoE protocol is configured, Static DNS
server IP addresses must be entered.

Click Next to continue or click Back to return to the previous step.

192

STEP 5: The WAN Setup - Summary screen sh ows a preview of the WAN service

you have configured. Check these setti ngs and cli ck Apply/Save if they
are correct, or click Back to modify them.

After clicking Apply/Save, the new service should appear on the main screen.

193

F2.2 IP over ETHERNET (IPoE)

STEP 1: *Select the IP over Ethernet radio button and click Next.

*

For tagged service, enter valid 802.1P Priority and 802.1Q VLAN ID.
For untagged service, set -1 to both 802.1P Priority and 802.1Q VLAN ID.

194

STEP 2: The WAN IP settings screen provides access to the DHCP server settings.
Y ou can select the Obtain an IP address automatically radio button to

enable DHCP (use the DHCP Options only if necessary). However, if you
prefer , you c an use the Static IP address method instead to assign WAN
IP address, Subnet Mask and Default Gateway manually.

NOTE: If IPv6 networking is enabled, an additional set of instructions, radio

buttons, and text entry boxes will appear at the bottom of the screen.
These configuration options are quite similar to those for IPv4 networks.

Click Next to continue or click Back to return to the previous step.

195

STEP 3: This screen provides access to NA T, Firewall and IGMP Multicast setti ngs.

Enable each by selecting the appropriate checkbox . Click Next to
continue or click Back to return to the previous step.

ENABLE NAT

If the LAN is configured with a private IP address, the user should select this
checkbox . The NAT submenu will appear in the Advanced Setup menu after
reboot. On the other hand, if a private IP address is not used on the LAN side (i.e.
the LAN side is using a public IP), this checkbox  should not be selected, so as to
free up system resources for improved performance.

ENABLE FULLCONE NAT

This option becomes available when NAT is enabled. Known as one-to-one NAT, all
requests from the same internal IP address and port are mapped to the same
external IP address and port. An external host can send a packet to the internal host,
by sending a packet to the mapped external address.

ENABLE FIREWALL

If this checkbox  is selected, the Security submenu will be displayed on the
Advanced Setup menu after reboot. If firewall is not necessary, this checkbox 
should not be selected so as to free up system resources for better performance.

ENABLE IGMP MULTICAST PROXY

Tick the checkbox  to enable Internet Group Membership Protocol (IGMP)
multicast. This protocol is used by IPv4 hosts to report their multicast group
memberships to any neighboring multicast routers.

Enable IGMP Multicast Source

Enable the WAN interface to be used as IGMP multicast source.

196

STEP 4: To choose an interface to be the default gateway.

Click Next to continue or click Back to return to the previous step.

197

STEP 5: Select DNS Server Interface from available WAN interfaces OR enter static
DNS server IP addresses for the system. In A TM mode, if only a single PVC with IPoA
or static IPoE protocol is configured, Static DNS server IP addresses must be
entered.

Click Next to continue or click Back to return to the previous step.

198

STEP 6: The WAN Setup - Summary screen sh ows a preview of the WAN service

you have configured. Check these setti ngs and cli ck Apply/Save if they
are correct, or click Back to modify them.

After clicking Apply/Save, the new service should appear on the main screen.

199

F2.3 Bridging

STEP 1: *Select the Bridging radio button and click Next.

Allow as IGMP Multicast Source
Click to allow use of this bridge WAN interface as IGMP multicast source.

Allow as MLD Multicast Source

Click to allow use of this bridge WAN interface as MLD multicast source.

*

For tagged service, enter valid 802.1P Priority and 802.1Q VLAN ID.
For untagged service, set -1 to both 802.1P Priority and 802.1Q VLAN ID.

For VLAN tag Q-in-Q service, select the TPID from the list.

200

STEP 2: The WAN Setup - Summary screen sh ows a preview of the WAN service

you have configured. Check these setti ngs and cli ck Apply/Save if they
are correct, or click Back to return to the previous screen.

After clicking Apply/Save, the new service should appear on the main screen.

NOTE: If this bridge connection is your only WAN service, the NexusLink 3240

will be inaccessible for remote management or technical support from the
WAN.

201

F2.4 PPP over ATM (PPPoA)

STEP 1: Click Next to continue.

202