IMPORTANT!
READ CAREFULLY BEFORE USE.
KEEP THIS GUIDE FOR FUTURE REFERENCE.
This is a User’s Guide for a system managing a series of products. Not all products support all features.
Menushots and graphics in this book may differ slightly from what you see due to differences in release
versions or your computer operating system. Every effort has been made to ensure that the information
in this manual is accurate.
Related Documentation
•Quick Start Guide
The Quick Start Guide shows how to connect the managed device.
•More Information
Go to support.zyxel.com to find other information on the VMG.
Vlan Group .......................................................................................................................................... 183
USB Service .......................................................................................................................................... 190
MAC Filter ............................................................................................................................................ 202
Parental Control ................................................................................................................................. 204
Traffic Status ....................................................................................................................................... 248
VoIP Status .......................................................................................................................................... 251
Multicast Status .................................................................................................................................. 258
System .................................................................................................................................................. 265
User Account ...................................................................................................................................... 266
Time Settings ........................................................................................................................................ 273
17.1.1 What You Can Do in this Chapter ................................................................................... 195
17.1.2 What You Need to Know ................................................................................................. 196
17.2 The Firewall Screen ..................................................................................................................... 196
17.3 The Protocol Screen .................................................................................................................. 197
17.3.1 Add/Edit a Service ........................................................................................................... 198
17.4 The Access Control Screen ....................................................................................................... 198
17.4.1 Add/Edit an ACL Rule ..................................................................................................... 199
17.5 The DoS Screen ........................................................................................................................... 201
Chapter 18
MAC Filter .........................................................................................................................................202
23.1.1 What You Can Do in this Chapter ................................................................................... 245
23.1.2 What You Need To Know ................................................................................................. 245
23.2 The System Log Screen .............................................................................................................. 246
23.3 The Security Log Screen ............................................................................................................. 246
Chapter 24
Traffic Status .....................................................................................................................................248
The VMG is a wireless VDSL router and Gigabit Ethernet gateway. It has a DSL port and a Gigabit
Ethernet port for super-fast Internet access. The VMG supports both Packet Transfer Mode (PTM) and
Asynchronous Transfer Mode (ATM). It is backward compatible with ADSL, ADSL2 and ADSL2+ in case
VDSL is not available.
Only use firmware for your VMG’s specific model. Refer to the label on
the bottom of your VMG.
The VMG works over the analog or digital telephone system, POTS (Plain Old Telephone Service) for
VMG8924-B10D, and ISDN/T-ISDN for VMG8924-B30D. The VMG has a USB port for sharing files via a USB
storage device or connecting a cellular dongle for a WAN backup connection.
CHAPTER 1
Introducing the VMG
• The VMG8924-B10D works over the analog telephone system, POTS (Plain Old Telephone Service).
• The VMG8924-B30D works over the digital telephone system, ISDN (Integrated Services Digital
Network) or T-ISDN (UR-2).
Note: Cellular networks refer to 3G only at the time of writing.
1.2 Ways to Manage the VMG
Use any of the following methods to manage the VMG.
• Web Configurator. This is recommended for everyday management of the VMG using a (supported)
web browser.
1.3 Good Habits for Managing the VMG
Do the following things regularly to make the VMG more secure and to manage the VMG more
effectively.
• Change the password. Use a password that’s not easy to guess and that consists of different types of
characters, such as numbers and letters.
• Write down the password and put it in a safe place.
VMG8924-B10D/B30D User’s Guide
16
Chapter 1 Introducing the VMG
DSL
DSL
A
A
• Back up the configuration (and make sure you know how to restore it). Restoring an earlier working
configuration may be useful if the device becomes unstable or even crashes. If you forget your
password, you will have to reset the VMG to its factory default settings. If you backed up an earlier
configuration file, you would not have to totally re-configure the VMG. You could simply restore your
last configuration.
1.4 Applications for the VMG
Here are some example uses for which the VMG is well suited.
1.4.1 Internet Access
Your VMG provides shared Internet access by connecting the DSL port to the DSL or MODEM jack on a
splitter or your telephone jack. You can have multiple WAN services over one ADSL or VDSL. The VMG
cannot work in ADSL and VDSL mode at the same time.
Note: The ADSL and VDSL lines share the same WAN (layer-2) interfaces that you configure in
the VMG. Refer to Section 6.2 on page 72 for the Network Setting > Broadband screen.
Computers can connect to the VMG’s LAN ports (or wirelessly).
Figure 1 VMG’s Internet Access Application
You can also configure IP filtering on the VMG for secure Internet access. When the IP filter is on, all
incoming traffic from the Internet to your network is blocked by default unless it is initiated from your
VMG8924-B10D/B30D User’s Guide
17
network. This means that probes from the outside to your network are not allowed, but you can safely
DSL
browse the Internet and download files.
1.4.2 VMG’s USB Support
The USB port of the VMG is used for cellular WAN backup, file-sharing and media server.
Cellular WAN (3G) Backup
Connect a supported cellular USB dongle with an active SIM card to the USB port. This adds a second
WAN interface and allows the VMG to wirelessly access the Internet via a cellular network. The cellular
WAN connection is a backup in case the DSL connection fails.
To set up a cellular connection, click Network Setting > Broadband > Cellular Backup.
To update the supported cellular USB dongle list, download the latest WWAN package from the Zyxel
website and upload it to the VMG using the Maintenance > Firmware Upgrade screen.
File Sharing
Chapter 1 Introducing the VMG
Use the built-in USB 2.0 port to share files on a USB memory stick or a USB hard drive (B). Use FTP to access
the files on the USB device.
Figure 2 USB File Sharing Application
Media Server
You can also use the VMG as a media server. This lets anyone on your network play video, music, and
photos from a USB device (B) connected to the VMG’s USB port (without having to copy them to
another computer).
VMG8924-B10D/B30D User’s Guide
18
Chapter 1 Introducing the VMG
DSL
Figure 3 USB Media Server Application
1.4.3 Wireless Access
The VMG is a wireless Access Point (AP) for wireless clients, such as notebook computers or PDAs and
iPads. It allows them to connect to the Internet without having to rely on inconvenient Ethernet cables.
You can configure your wireless network in either the built-in Web Configurator, or using the WPS button.
See Section 1.5.4 on page 22 for more information about how to set up a wireless network with WLAN
and WPS buttons.
Figure 4 Wireless Access Example
1.5 Hardware
1.5.1 Front and Side Panels
The following graphic displays the front and side panels of the VMG.
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19
Chapter 1 Introducing the VMG
Figure 5 VMG8924-B10D Front and Side Panels
The following table describes the items on the side panels..
Table 1 Side Panel Buttons
LABELDESCRIPTION
WLANPress the WLAN button for more than two seconds to enable the wireless function.
WPSPress the WPS button for more than five seconds to quickly set up a secure wireless connection
between the device and a WPS-compatible client.
USBThe USB port is used for cellular WAN backup, file-sharing and media server.
1.5.2 Using the WLAN and WPS Buttons
If the wireless network is turned off, press the WLAN On/Off button for more than two seconds. Once the
WLAN/WPS LED turns green, the wireless network is active.
You can also use the WPS On/Off button to quickly set up a secure wireless connection between the
VMG and a WPS-compatible client by adding one device at a time.
To activate WPS:
1Make sure the PWR LED is on and not blinking.
2Press the WPS On/Off button for more than five seconds and release it.
3Press the WPS button on another WPS-enabled device within range of the VMG. The WLAN/WPS LED
flashes orange while the VMG sets up a WPS connection with the other wireless device.
4Once the connection is successfully made, the WLAN/WPS LED shines green. Note that the connection
to the 2.4GHz wireless network has priority.
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20
To turn off the wireless network, press the WLAN On/Off button for more than five seconds. The WLAN/
WPS LED turns off when the wireless network is off.
1.5.3 LEDs (Lights)
The following graphic displays the labels of the LEDs.
Figure 6 LEDs on the VMG
None of the LEDs are on if the VMG is not receiving power.
Table 2 LED Descriptions
LEDCOLORSTATUSDESCRIPTION
PowerGreenOnThe VMG is receiving power and ready for use.
DSLGreenOnThe VDSL line is up.
InternetGreenOnThe VMG has an IP connection but no traffic.
WANGreenOnThe VMG has a successful 10/100/1000 Mbps Ethernet connection on the
Chapter 1 Introducing the VMG
BlinkingThe VMG is self-testing.
RedOnThe VMG detected an error while self-testing, or there is a device
BlinkingThe VMG is upgrading firmware.
OffThe VMG is not receiving power.
Slow
Blinking
Fast
Blinking
OrangeOnThe ADSL line is up.
Slow
Blinking
Fast
Blinking
OffThe DSL line is down.
BlinkingThe VMG is sending or receiving IP traffic.
OffThere is no Internet connection or the gateway is in bridged mode.
RedOnThe VMG attempted to make an IP connection but failed. Possible causes
Blinking The VMG is sending or receiving data to/from the WAN at 10/100/1000
OffThere is no Ethernet connection on the WAN.
malfunction.
The VMG is detecting carrier signals.
The VMG is initializing the VDSL line.
The VMG is detecting carrier signals.
The VMG is initializing the ADSL line.
Your device has a WAN IP address (either static or assigned by a DHCP
server), PPP negotiation was successfully completed (if used) and the DSL
connection is up.
are no response from a DHCP server, no PPPoE response, PPPoE
authentication failed.
WAN.
Mbps.
VMG8924-B10D/B30D User’s Guide
21
Chapter 1 Introducing the VMG
Table 2 LED Descriptions (continued)
LEDCOLORSTATUSDESCRIPTION
LAN1~4GreenOnThe VMG has a successful 10/100/1000 Mbps Ethernet connection with a
device on the Local Area Network (LAN).
Blinking The VMG is sending or receiving data to/from the LAN at 10/100/1000
Mbps.
OffThe VMG does not have an Ethernet connection with the LAN.
WLAN/WPSGreenOnThe 2.4 GHz or 5 GHz wireless network is activated.
BlinkingThe VMG is communicating with 2.4 GHz or 5 GHz wireless clients.
OrangeBlinkingThe VMG is setting up a WPS connection with a 2.4 GHz or 5 GHz wireless
OffThe 2.4 GHz or 5 GHz wireless network is not activated.
Phone1,
Phone2
USBGreenOnThe VMG recognizes a USB connection through the USB slot.
GreenOnA SIP account is registered for the phone port.
BlinkingA telephone connected to the phone port has its receiver off of the hook or
OrangeOnA SIP account is registered for the phone port and there is a voice message
BlinkingA telephone connected to the phone port has its receiver off of the hook
OffThe phone port does not have a SIP account registered.
BlinkingThe VMG is sending/receiving data to /from the USB device connected to
OffThe VMG does not detect a USB connection through the USB slot.
client.
there is an incoming call.
in the corresponding SIP account.
and there is a voice message in the corresponding SIP account.
it.
1.5.4 Rear Panel
The following graphic displays the rear panel of the VMG.
Figure 7 VMG8924-B10D Rear Panel
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22
The following table describes the items on the rear panel..
Table 3 Rear Panel Ports
LABELDESCRIPTION
DSLConnect a RJ-11 cable to the DSL port for Internet access.
LAN1 ~ LAN4 Connect computers or other Ethernet devices to Ethernet ports for Internet
WANConnect an Ethernet cable to the Ethernet WAN port for Internet access.
Phone1 ~
Phone2
PowerConnect the power cable can press the power button to start the device.
ResetPress the button to return the VMG to the factory defaults.
access.
Connect analog phones to the phone ports to make phone calls.
1.5.5 The RESET Button
If you forget your password or cannot access the Web Configurator, you will need to use the RESET
button at the back of the device to reload the factory-default configuration file. This means that you will
lose all configurations that you had previously. The password will be reset to “1234”, and the LAN IP
address will be “192.168.1.1”.
Chapter 1 Introducing the VMG
1Make sure the PWR LED is on (not blinking).
2To set the device back to the factory default settings, press the RESET button for five seconds or until the
PWR LED begins to blink and then release it. When the PWR LED begins to blink, the defaults have been
restored and the device restarts.
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23
2.1 Overview
The screens are based on VMG8924-B10D.
CHAPTER 2
The Web Configurator
The web configurator is an HTML-based management interface that allows easy
management via Internet browser. Use Internet Explorer 8.0 and later versions or Mozilla Firefox 3 and
later versions or Safari 2.0 and later versions. The recommended screen resolution is 1024 by 768 pixels.
In order to use the web configurator you need to allow:
• Web browser pop-up windows from your
Windows XP SP (Service Pack) 2.
• JavaScript (enabled by default).
• Java permissions (enabled by default).
VMG. Web pop-up blocking is enabled by default in
2.1.1 Accessing the Web Configurator
1Make sure your VMG hardware is properly connected (refer to the Quick Start Guide).
2Launch your web browser. If the VMG does not automatically re-direct you to the login screen, go to
http://192.168.1.1.
3A password screen displays. To access the administrative web configurator and manage the VMG, type
the default username admin and password 1234 in the password screen and click Login. If advanced
account security is enabled (see Section 32.2 on page 266) the number of dots that appears when you
type the password changes randomly to prevent anyone watching the password field from knowing the
length of your password. If you have changed the password, enter your password and click Login.
Figure 8 Password Screen
VMG setup and
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24
Chapter 2 The Web Configurator
4The following screen displays if you have not yet changed your password. Enter a new password, retype
it to confirm and click Apply.Figure 9 Change Password Screen
5Configure basic Internet access, and wireless settings. The Network Map page appears.
Figure 10 Network Map
6Click Status to display the Status screen, where you can view the VMG’s interface and system
information.
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25
Chapter 2 The Web Configurator
C
A
B
2.2 Web Configurator Layout
Figure 11 Screen Layout
As illustrated above, the main screen is divided into these parts:
• A - title bar
• B - main window
• C - navigation panel
2.2.1 Title Bar
The title bar provides some icons in the upper right corner.
The icons provide the following functions.
Table 4 Web Configurator Icons in the Title Bar
ICON DESCRIPTION
Language: Select the language you prefer.
Quick Start: Click this icon to open screens where you can configure the VMG’s time zone
Internet access, and wireless settings.
Logout: Click this icon to log out of the web configurator.
VMG8924-B10D/B30D User’s Guide
26
2.2.2 Navigation Panel
Use the menu items on the navigation panel to open screens to configure VMG features. The following
tables describe each menu item.
Table 5 Navigation Panel Summary
LINKTABFUNCTION
Connection StatusThis screen shows the network status of the VMG and computers/devices
Network Setting
BroadbandBroadbandUse this screen to view and configure ISP parameters, WAN IP address
Cellular BackupUse this screen to configure 3G WAN connection.
AdvancedUse this screen to enable or disable PTM over ADSL, Annex M/Annex J,
WirelessGeneralUse this screen to configure the wireless LAN settings and WLAN
Guest/More APUse this screen to configure multiple BSSs on the VMG.
MAC
Authentication
WPSUse this screen to configure and view your WPS (Wi-Fi Protected Setup)
WMMUse this screen to enable or disable Wi-Fi MultiMedia (WMM).
OthersUse this screen to configure advanced wireless settings.
Channel StatusUse this screen to scan wireless LAN channel noises and view the results.
Home
Networking
RoutingStatic RouteUse this screen to view and set up static routes on the VMG.
LAN SetupUse this screen to configure LAN TCP/IP settings, and other advanced
Static DHCP Use this screen to assign specific IP addresses to individual MAC
UPnPUse this screen to turn UPnP and UPnP NAT-T on or off.
Additional
Subnet
STB Vendor IDUse this screen to configure the Vendor IDs of the connected Set Top Box
Wake on LanUse this screen to remotely turn on a device on the local network.
TFTP Server Name Use DHCP option 66 to identify a TFTP server name.
DNS RouteUse this screen to forward DNS queries for certain domain names through
Policy Route
RIPUse this screen to configure Routing Information Protocol to exchange
Chapter 2 The Web Configurator
connected to it.
assignment, and other advanced properties. You can also add new
WAN connections.
and DSL PhyR functions.
authentication/security settings.
Use this screen to block or allow wireless traffic from wireless devices of
certain SSIDs and MAC addresses to the VMG.
settings.
properties.
addresses.
Use this screen to configure IP alias and public static IP.
(STB) devices, which have the VMG automatically create static DHCP
entries for the STB devices when they request IP addresses.
a specific WAN interface to its DNS server(s).
Use this screen to configure policy routing on the VMG.
routing information with other routers.
VMG8924-B10D/B30D User’s Guide
27
Chapter 2 The Web Configurator
Table 5 Navigation Panel Summary (continued)
LINKTABFUNCTION
QoSGeneralUse this screen to enable QoS and traffic prioritizing. You can also
configure the QoS rules and actions.
Queue SetupUse this screen to configure QoS queues.
Classification
Setup
Shaper SetupUse this screen to limit outgoing traffic rate on the selected interface.
Policer SetupUse this screen to configure QoS policers.
NATPort ForwardingUse this screen to make your localservers visible to the outside world.
ApplicationsUse this screen to configure servers behind the VMG.
Port TriggeringUse this screen to change your VMG’s port triggering settings.
DMZUse this screen to configure a default server which receives packets from
ALGUse this screen to enable or disable SIP ALG.
Address Mapping Use this screen to change your VMG’s address mapping settings.
SessionsUse this screen to configure the maximum number of NAT sessions each
DNSDNS EntryUse this screen to view and configure DNS routes.
Dynamic DNSUse this screen to allow a static hostname alias for a dynamic IP address.
IGMP/MLDIGMP/MLDUse this screen to configure multicast settings (IGMP for IPv4 and MLD for
Vlan GroupVlan GroupUse this screen to group and tag VLAN IDs to outgoing traffic from the
Interface
Grouping
USB ServiceFile SharingUse this screen to enable file sharing via the VMG.
Security
FirewallGeneralUse this screen to configure the security level of your firewall.
MAC FilterMAC FilterUse this screen to block or allow traffic from devices of certain MAC
Parental
Control
Scheduler RuleScheduler RuleUse this screen to configure the days and times when a configured
CertificatesLocal Certificates Use this screen to view a summary list of certificates and manage
VoIP
Interface
Grouping
Media ServerUse this screen to use the VMG as a media server.
ProtocolUse this screen to add Internet services and configure firewall rules.
Access ControlUse this screen to enable specific traffic directions for network services.
DoSUse this screen to activate protection against Denial of Service (DoS)
Parental ControlUse this screen to block web sites with the specific URL.
Trusted CA
Use this screen to define a classifier.
ports that are not specified in the Port Forwarding screen.
client host is allowed to have through the VMG.
IPv6 multicast groups) on the WAN.
specified interface.
Use this screen to map a port to a PVC or bridge group.
attacks.
addresses to the VMG.
restriction (such as parental control) is enforced.
certificates and certification requests.
Use this screen to view and manage the list of the trusted CAs.
VMG8924-B10D/B30D User’s Guide
28
Chapter 2 The Web Configurator
Table 5 Navigation Panel Summary (continued)
LINKTABFUNCTION
SIPSIP AccountUse this screen to set up information about your SIP account and
configure audio settings such as volume levels for the phones
connected to the VMG.
SIP Service
Provider
PhonePhone Device
Region
Call RuleSpeed Dial
Call HistoryCall HistoryUse this screen to view a call history list.
Call SummaryUse this screen to view the summary of received, dialed and missed calls.
System Monitor
LogSystem LogUse this screen to view the status of events that occurred to the VMG.
Security LogUse this screen to view all security related events. You can select level
Traffic StatusWANUse this screen to view the status of all network traffic going through the
LANUse this screen to view the status of all network traffic going through the
NATUse this screen to view NAT statistics for connected hosts.
VoIP StatusVoIP StatusUse this screen to view VoIP registration, current call statust and phone
ARP tableARP tableUse this screen to view the ARP table. It displays the IP and MAC address
Routing TableRouting TableUse this screen to view the routing table on the VMG.
Multicast StatusIGMP StatusUse this screen to view the status of all IGMP settings on the VMG.
MLD StatusUse this screen to view the status of all MLD settings on the VMG.
xDSL StatisticsxDSL StatisticsUse this screen to view the VMG’s xDSL traffic statistics.
Cellular
Statistics
Maintenance
Cellular StatisticsUse this screen to look at cellular Internet connection status.
Use this screen to configure the SIP server information, QoS for VoIP calls,
the numbers for certain phone functions, and dialing plan.
Use this screen to view detailed information of the phone devices.
Use this screen to select your location and a call service mode.
Use this screen to configure speed dial for SIP phone numbers that you
call often.
You can export or e-mail the logs.
and category of the security events in their proper drop-down list
window.
Levels include:
•Emergency
•Alert
• Critical
• Error
• Warning
•Notice
• Informational
•Debugging
Categories include:
• Account
• Attack
•Firewall
• MAC Filter
WAN port of the VMG.
LAN ports of the VMG.
numbers for the phone ports.
of each DHCP connection.
VMG8924-B10D/B30D User’s Guide
29
Chapter 2 The Web Configurator
Table 5 Navigation Panel Summary (continued)
LINKTABFUNCTION
SystemSystem
User AccountUser AccountUse this screen to change user password on the VMG.
Remote
Management
SNMPSNMPUse this screen to configure SNMP (Simple Network Management
TimeTimeUse this screen to change your VMG’s time and date.
Email
Notification
Log SettingLog SettingUse this screen to change your VMG’s log settings.
Firmware
Upgrade
Backup/Restore Backup/RestoreUse this screen to backup and restore your VMG’s configuration
RebootRebootUse this screen to reboot the VMG without turning the power off.
DiagnosticPing&Traceroute
MGMT ServicesUse this screen to enable specific traffic directions for network services.
Trust DomainUse this screen to view a list of public IP addresses which are allowed to
Email Notification Use this screen to configure up to two mail servers and sender addresses
Firmware
Upgrade
&Nslookup
802.1agUse this screen to configure CFM (Connectivity Fault Management) MD
OAM PingUse this screen to view information to help you identify problems with the
Use this screen to set Device name and Domain name.
access the VMG through the services configured in the Maintenance >
Remote Management screen.
Protocol) settings.
on the VMG.
Use this screen to upload firmware to your VMG.
(settings) or reset the factory default settings.
Use this screen to identify problems with the DSL connection. You can
use Ping, TraceRoute, or Nslookup to help you identify problems.
(maintenance domain) and MA (maintenance association), perform
connectivity tests and view test reports.
DSL connection.
VMG8924-B10D/B30D User’s Guide
30
3.1 Overview
Use the Quick Start screens to configure the VMG’s time zone, basic Internet access, and wireless
settings.
Note: See the technical reference chapters (starting on Chapter 4 on page 33) for
background information on the features in this chapter.
3.2 Quick Start Setup
1The Quick Start Wizard appears automatically after login. Or you can click the QuickClick Start icon in
the top right corner of the web configurator to open the quick start screens. Select the time zone of your
location. Click Next.
Figure 12 Quick Start - Welcome
CHAPTER 3
Quick Start
2Enter your Internet connection information in this screen. The screen and fields to enter may vary
depending on your current connection type. Click Next.
VMG8924-B10D/B30D User’s Guide
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Chapter 3 Quick Start
Figure 13 Quick Start - Internet Connection
3Turn the wireless LAN on or off. If you keep it on, record the security settings so you can configure your
wireless clients to connect to the VMG. Click Save.Figure 14 Quick Start - Wireless
4Your VMG saves your settings and attempts to connect to the Internet.
VMG8924-B10D/B30D User’s Guide
32
4.1 Overview
This chapter shows you how to use the VMG’s various features.
• Setting Up an ADSL PPPoE Connection, see page 33
• Setting Up a Secure Wireless Network, see page 36
• Setting Up Multiple Wireless Groups, see page 42
• Using the File Sharing Feature, see page 45
• Using the Media Server Feature, see page 48
• Configuring Static Route for Routing to Another Network, see page 52
• Configuring QoS Queue and Class Setup, see page 54
• Access the VMG Using DDNS, see page 57
• Configuring the MAC Address Filter, see page 58
• Access Your Shared Files From a Computer, see page 59
CHAPTER 4
Tutorials
4.2 Setting Up an ADSL PPPoE Connection
This tutorial shows you how to set up an ADSL Internet connection using the Web Configurator.
If you connect to the Internet through an ADSL connection, use the information from your Internet
Service Provider (ISP) to configure the VMG. Be sure to contact your service provider for any information
you need to configure the Broadband screens.
1Click Network Setting > Broadband to open the following screen. Click AddNew WAN Interface.
2In this example, the DSL connection has the following information.
General
NameMyDSLConnection
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Chapter 4 Tutorials
TypeADSL over ATM
Connection ModeRouting
EncapsulationPPPoE
IPv6/IPv4 ModeIPv4
ATM PVC Configuration
VPI/VCI36/48
Encapsulation ModeLLC/SNAP-Bridging
Service CategoryUBR without PCR
Account Information
PPP User Name1234@DSL-Ex.com
PPP PasswordABCDEF!
PPPoE Service NameMyDSL
Static IP Address192.168.1.32
OthersAuthentication Method: AUTO
PPPoE Passthrough: Disabled
NAT: Enabled
IGMP Multicast Proxy: Enabled
Apply as Default Gateway: Enabled
VLAN: Disabled
3Select Enable in the Active field. Enter the General and ATM PVC Configuration settings as provided
above.
Set the Type to ADSL over ATM.
Choose the Encapsulation specified by your DSL service provider. For this example, the service provider
requires a username and password to establish Internet connection. Therefore, select PPPoE as the WAN
encapsulation type.
Set the IPv6/IPv4 Mode to IPv4 Only.
4Enter the account information provided to you by your DSL service provider.
5Configure this rule as your default Internet connection by selecting the Apply as Default Gateway check
box. Then select DNS as Static and enter the DNS server addresses provided to you, such as 192.168.5.2
(DNS server1)/192.168.5.1 (DNS server2).
6Leave the rest of the fields to the default settings.
7Click Apply to save your settings.
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34
Chapter 4 Tutorials
8You should see a summary of your new DSL connection setup in the Broadband screen as follows.
VMG8924-B10D/B30D User’s Guide
35
Chapter 4 Tutorials
DSL
Try to connect to a website to see if you have correctly set up your Internet connection. Be sure to
contact your service provider for any information you need to configure the WAN screens.
4.3 Setting Up a Secure Wireless Network
Thomas wants to set up a wireless network so that he can use his notebook to access the Internet. In this
wireless network, the VMG serves as an access point (AP), and the notebook is the wireless client. The
wireless client can access the Internet through the AP.
Thomas has to configure the wireless network settings on the VMG. Then he can set up a wireless
network using WPS (Section 4.3.2 on page 38) or manual configuration (Section 4.3.3 on page 41).
4.3.1 Configuring the Wireless Network Settings
This example uses the following parameters to set up a wireless network.
1Click NetworkSetting > Wireless to open the General screen. Select More Secure as the security level
and WPA2-PSK as the security mode. Configure the screen using the provided parameters (see
page 36). Click Apply.
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36
Chapter 4 Tutorials
2Go to the Wireless >Others screen and select 802.11b/g/nMixed in the 802.11 Mode field. Click Apply.
Thomas can now use the WPS feature to establish a wireless connection between his notebook and the
VMG (see Section 4.3.2 on page 38). He can also use the notebook’s wireless client to search for the
VMG (see Section 4.3.3 on page 41).
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4.3.2 Using WPS
1
2
3
This section shows you how to set up a wireless network using WPS. It uses the VMG as the AP and Zyxel
NWD210N as the wireless client which connects to the notebook.
Note: The wireless client must be a WPS-aware device (for example, a WPS USB adapter or
PCMCIA card).
There are two WPS methods to set up the wireless client settings:
• Push Button Configuration (PBC) - simply press a button. This is the easier of the two methods.
• PIN Configuration - configure a Personal Identification Number (PIN) on the VMG. A wireless client
must also use the same PIN in order to download the wireless network settings from the VMG.
Push Button Configuration (PBC)
1Make sure that your VMG is turned on and your notebook is within the cover range of the wireless signal.
2Make sure that you have installed the wireless client driver and utility in your notebook.
Chapter 4 Tutorials
3In the wireless client utility, go to the WPS setting page. Enable WPS and press the WPS button (Start or
WPS button).
4Push and hold the WPS button located on the VMG’s front panel for more than five seconds.
Alternatively, you may log into VMG’s web configurator and go to the Network Setting > Wireless >WPS
screen. Enable the WPS function for method 1 and click Apply. Then click the Connect button.
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DSL
Note: Your VMG has a WPS button located on its front panel as well as a WPS button in its
configuration utility. Both buttons have exactly the same function: you can use one or
the other.
Note: It doesn’t matter which button is pressed first. You must press the second button within
two minutes of pressing the first one.
The VMG sends the proper configuration settings to the wireless client. This may take up to two minutes.
The wireless client is then able to communicate with the VMG securely.
The following figure shows you an example of how to set up a wireless network and its security by
pressing a button on both VMG and wireless client.
Example WPS Process: PBC Method
PIN Configuration
When you use the PIN configuration method, you need to use both the VMG’s web configurator and
the wireless client’s utility.
1Launch your wireless client’s configuration utility. Go to the WPS settings and select the PIN method to
get a PIN number.
2Log into VMG’s web configurator and go to the Network Setting > Wireless >WPS screen. Enable the
WPS function and click Apply.
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1
2
3
3Enter the PIN number of the wireless client and click the Register button. Activate WPS function on the
wireless client utility screen within two minutes.
The VMG authenticates the wireless client and sends the proper configuration settings to the wireless
client. This may take up to two minutes. The wireless client is then able to communicate with the VMG
securely.
The following figure shows you how to set up a wireless network and its security on a VMG and a wireless
client by using PIN method.
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DSL
DSL
DSL
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Example WPS Process: PIN Method
4.3.3 Without WPS
Use the wireless adapter’s utility installed on the notebook to search for the “Example” SSID. Then enter
the “DoNotStealMyWirelessNetwork” pre-shared key to establish an wireless Internet connection.
Note: The VMG supports IEEE 802.11b and IEEE 802.11g wireless clients. Make sure that your
notebook or computer’s wireless adapter supports one of these standards.
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4.4 Setting Up Multiple Wireless Groups
Company A wants to create different wireless network groups for different types of users as shown in the
following figure. Each group has its own SSID and security mode.
• Employees in Company A will use a general Company wireless network group.
• Higher management level and important visitors will use the VIP group.
• Visiting guests will use the Guest group, which has a different SSID and password.
Company A will use the following parameters to set up the wireless network groups.
1Click Network Setting >Wireless to open the General screen. Use this screen to set up the company’s
general wireless network group. Configure the screen using the provided parameters and click Apply.
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2Click Network Setting >Wireless>Guest/More AP to open the following screen. Click the Edit icon to
configure the second wireless network group.
3Configure the screen using the provided parameters and click Apply.
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4In the Guest/More AP screen, click the Edit icon to configure the third wireless network group.Configure
the screen using the provided parameters and click Apply.
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5Check the status of VIP and Guest in the Guest/More AP screen. The yellow bulbs signify that the SSIDs
are active and ready for wireless access.
4.5 Using the File Sharing Feature
In this section you can:
• Set up file sharing of your USB device from the VMG.
• Access the shared files of your USB device from a computer.
4.5.1 Set Up File Sharing
To set up file sharing you need to connect your USB device, enable file sharing and set up your share(s).
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Before enabling file sharing in the VMG, please set up your shares beforehand in the USB. Also, the
following special characters are not allowed for the USB share name: ", ', `, <, >, ^, $, |, &, ;, \, /, :, *, and
?.
4.5.1.1 Activate File Sharing
Connect your USB device to the USB port at the side panel of the VMG.
Click Network Setting > USB Service > File Sharing. Select Enable and click Apply to activate the file
sharing function. The VMG automatically adds your USB device to the Information.
Chapter 4 Tutorials
4.5.1.2 Set up File Sharing on Your VMG
You also need to set up file sharing on your VMG in order to share files.
1Click Add New Share in the File Sharing screen to add a new share. Select your USB device from the
Volume drop-down list box.
2Click Browse to browse through all the files on your USB device. Select the folder that you want to add as
a share. In this example, select BobShare. Click Apply
If the share names include the following special characters: ", ', `, <, >, ^, $, |, &, ;, \, /, :, *, and ?, the
following screen will appear. To avoid this, please correct your share names in the USB, and repeat the
steps above.
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3It’s mandatory for you to add a description for the share. Also, if you want the share to be accessed by
users connecting to the VMG, you can select Public in Access Level or select Security to specific users’
use only. Please note that you need to create the users’ accounts that are eligible to access the secure
shares beforehand under Account Management, if you want to configure the Access Level to Security.
For detailed information, please refer to the steps below. The Add Share Directory screen should look like
the following. Click Apply to finish.
4This sets up the file sharing server. You can see the USB storage device listed in the table below.
5If you want specific users only to access the shares, you need to Add New Users in Account
Management. Once you click the Add New User button, you’ll be directed to the User Account screen.
To create a user account that can access the secured shares on the USB device, click the Add New Account button in the Network Setting >Maintenance > User Account screen.
Please see Chapter 29 on page 225, for detailed information about User Account screen.
6After you create a new user account, the screen should look like the following.
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4.5.2 Access Your Shared Files From a Computer
You can use Windows Explorer to access the file storage devices connected to the VMG.
Note: The examples in this User’s Guide show you how to use Microsoft’s Windows 7 to browse
your shared files. Refer to your operating system’s documentation for how to browse
your file structure.
Open Windows Explorer to access BobShare using Windows Explorer browser.
In Windows Explorer’s Address bar type a double backslash “\\” followed by the IP address of the VMG
(the default IP address of the VMG is 192.168.1.1) and press [ENTER]. The share folder BobShare is
available.
Once you access BobShare via your VMG, you do not have to relogin unless you restart your computer.
4.6 Using the Media Server Feature
Use the media server feature to play files on a computer or on your television (using DMA-2500).
This section shows you how the media server feature works using the following media clients:
• Microsoft (MS) Windows Media Player
Media Server works with Windows 7. Make sure your computer is able to play media files (music,
videos and pictures).
• Zyxel DMA-2500, a digital media adapter
You need to set up the DMA-2500 to work with your television (TV). Refer to the DMA-2500 Quick Start
Guide for the correct hardware connections.
Before you begin, connect the USB storage device containing the media files you want to play to the
USB port of your VMG.
4.6.1 Configuring the VMG
To use your VMG as a media server, click Network Setting > USB Service > Media Server.
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Enable Media Server, select an interface on which you want to enable the media server function, enter
the path clients use to access the media files on a USB storage device connected to the VMG, and click
Apply. This enables DLNA-compliant media clients to play the video, music and image files in your USB
storage device.
4.6.2 Using Windows Media Player
This section shows you how to play the media files on the USB storage device connected to your VMG
using Windows Media Player.
Windows 7
7Open Windows Media Player. It should automatically detect the VMG.
8If you cannot see the VMG in the left panel as shown above, go to Organize > Manage Libraries >
Music/Videos/Pictures/Recorded TV > Add > \\192.168.1.1\BobShare. (Select the folder containing the
media you wish to upload to Windows Media Player.)
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9In the right panel, you should see a list of files available in the USB storage device.
4.6.3 Using a Digital Media Adapter
This section shows you how you can use the VMG with a Zyxel DMA-2500 to play media files stored in the
USB storage device in your TV screen.
Note: For this tutorial, your DMA-2500 should already be set up with the TV according to the
instructions in the DMA-2500 Quick Start Guide.
1Connect the DMA-2500 to an available LAN port in your VMG.
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2Turn on the TV and wait for the DMA-2500 Home screen to appear. Using the remote control, go to
MyMedia to open the following screen. Select the GPON Device as your media server.
3The screen shows you the list of available media files in the USB storage device. Select the file you want
to open and push the Play button in the remote control.
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4.7 Configuring Static Route for Routing to Another
Network
In order to extend your Intranet and control traffic flowing directions, you may connect a router to the
VMG’s LAN. The router may be used to separate two department networks. This tutorial shows how to
configure a static routing rule for two network routings.
In the following figure, router R is connected to the VMG’s LAN. R connects to two networks, N1
(192.168.1.x/24) and N2 (192.168.10.x/24). If you want to send traffic from computer A (in N1 network) to
computer B (in N2 network), the traffic is sent to the VMG’s WAN default gateway by default. In this
case, B will never receive the traffic.
You need to specify a static routing rule on the VMG to specify R as the router in charge of forwarding
traffic to N2. In this case, the VMG routes traffic from A to R and then R routes the traffic to B.
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This tutorial uses the following example IP settings:
To configure a static route to route traffic from N1 to N2:
1Log into the VMG’s Web Configurator in advanced mode.
2Click Network Setting > Routing.
3Click Add new Static Route in the Static Route screen.
4Configure the Static Route Setup screen using the following settings:
4aSelect Enable in the Active field. Enter the Route Name as R.
4bSet IP Type to IPv4.
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4cType 192.168.10.0 and subnet mask 255.255.255.0 for the destination, N2.
4dSelect Enable in the Use Gateway IP Address field. Type 192.168.1.253 (R’s N1 address) in the
Gateway IP Address field.
4eSelect VDSL as the Use Interface.
4aClick OK.
Now B should be able to receive traffic from A. You may need to additionally configure B’s firewall
settings to allow specific traffic to pass through.
4.8 Configuring QoS Queue and Class Setup
This section contains tutorials on how you can configure the QoS screen.
Let’s say you are a team leader of a small sales branch office. You want to prioritize e-mail traffic
because your task includes sending urgent updates to clients at least twice every hour. You also upload
data files (such as logs and e-mail archives) to the FTP server throughout the day. Your colleagues use
the Internet for research, as well as chat applications for communicating with other branch offices.
In the following figure, your Internet connection has an upstream transmission bandwidth of 10,000 kbps.
For this example, you want to configure QoS so that e-mail traffic gets the highest priority with at least
5,000 kbps. You can do the following:
• Configure a queue to assign the highest priority queue (1) to e-mail traffic going to the WAN
interface, so that e-mail traffic would not get delayed when there is network congestion.
• Note the IP address (192.168.1.23 for example) and/or MAC address (AA:FF:AA:FF:AA:FF for example)
of your computer and map it to queue 7.
Note: QoS is applied to traffic flowing out of the VMG.
Traffic that does not match this class is assigned a priority queue based on the internal QoS mapping
table on the VMG.
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10,000 kbps
DSL
Your computer
IP=192.168.1.23
A colleague’s computer
Other traffic: Automatic classifier
1Click Network Setting > QoS > General and select Enable. Set your WAN Managed Upstream Bandwidth
to 10,000 kbps (or leave this blank to have the VMG automatically determine this figure). Click Apply.
Tutorial: Advanced > QoS
2Click Queue Setup > Add new Queue to create a new queue. In the screen that opens, check Active
and enter or select the following values:
• Name: E-mail
• Interface: WAN
• Priority: 1 (High)
• Weight: 8
• Rate Limit: 5,000 (kbps)
Tutorial: Advanced > QoS > Queue Setup
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3Click Classification Setup > Add new Classification to create a new class. Select Enable in the Active
field and follow the settings as shown in the screen below.
Tutorial: Advanced > QoS > Class Setup
Class NameGive a class name to this traffic, such as E-mail in this example.
From InterfaceThis is the interface from which the traffic will be coming from. Select LAN1 for this example.
Ether TypeSelect IP to identify the traffic source by its IP address or MAC address.
IP AddressType the IP address of your computer - 192.168.1.23. Type the IP Subnet Mask if you know it.
MAC AddressType the MAC address of your computer - AA:FF:AA:FF:AA:FF. Type the MAC Mask if you know it.
To Queue IndexLink this to an item in the Network Setting > QoS > Queue Setup screen, which is the E-mail queue
created in this example.
This maps e-mail traffic coming from port 25 to the highest priority, which you have created in the
previous screen (see the IP Protocol field). This also maps your computer’s IP address and MAC address
to the E-mail queue (see the Source fields).
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4.9 Access the VMG Using DDNS
If you connect your VMG to the Internet and it uses a dynamic WAN IP address, it is inconvenient for you
to manage the device from the Internet. The VMG’s WAN IP address changes dynamically. Dynamic
DNS (DDNS) allows you to access the VMG using a domain name.
To use this feature, you have to apply for DDNS service at www.dyndns.org.
This tutorial covers:
• Registering a DDNS Account on www.dyndns.org
• Configuring DDNS on Your VMG
• Testing the DDNS Setting
Note: If you have a private WAN IP address, then you cannot use DDNS.
4.9.1 Registering a DDNS Account on www.dyndns.org
1Open a browser and type http://www.dyndns.org.
2Apply for a user account. This tutorial uses UserName1 and 12345 as the username and password.
3Log into www.dyndns.org using your account.
4Add a new DDNS host name. This tutorial uses the following settings as an example.
• Hostname: zyxelrouter.dyndns.org
• Service Type: Host with IP address
• IP Address: Enter the WAN IP address that your VMG is currently using. You can find the IP address on
the VMG’s Web Configurator Status page.
Then you will need to configure the same account and host name on the VMG later.
4.9.2 Configuring DDNS on Your VMG
Configure the following settings in the Network Setting>DNS > Dynamic DNS screen.
•Select Enable Dynamic DNS.
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•Select www.DynDNS.com as the service provider.
•Type zyxelrouter.dyndns.org in the Host Name field.
• Enter the user name (UserName1) and password (12345).
Click Apply.
4.9.3 Testing the DDNS Setting
Chapter 4 Tutorials
Now you should be able to access the VMG from the Internet. To test this:
1Open a web browser on the computer (using the IP address a.b.c.d) that is connected to the Internet.
2Type http://zyxelrouter.dyndns.org and press [Enter].
3The VMG’s login page should appear. You can then log into the VMG and manage it.
4.10 Configuring the MAC Address Filter
Thomas noticed that his daughter Josephine spends too much time surfing the web and downloading
media files. He decided to prevent Josephine from accessing the Internet so that she can concentrate
on preparing for her final exams.
Josephine’s computer connects wirelessly to the Internet through the VMG. Thomas decides to use the
Security > MAC Filter screen to grant wireless network access to his computer but not to Josephine’s
computer.
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1Click Security > MAC Filter to open the MAC Filter screen. Select the Enable check box to activate MAC
filter function.
2Select Allow. Then enter the host name and MAC address of Thomas’ computer in this screen. Click
Apply.
Thomas can also grant access to the computers of other members of his family and friends. However,
Josephine and others not listed in this screen will no longer be able to access the Internet through the
VMG.
4.11 Access Your Shared Files From a Computer
Here is how to use an FTP program to access a file storage device connected to the VMG’s USB port.
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Note: This example uses the FileZilla FTP program to browse your shared files.
1In FileZilla enter the IP address of the VMG (the default is 192.168.1.1), your account’s user name and
password and port 21 and click Quickconnect. A screen asking for password authentication appears.
File Sharing via Windows Explore r
2Once you log in the USB device displays in the mnt folder.
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PART II
Technical Reference
61
Network Map and Status
5.1 Overview
After you log into the Web Configurator, the Network Map screen appears. This shows the network
connection status of the VMG and clients connected to it.
You can use the Status screen to look at the current status of the VMG, system resources, and interfaces
(LAN, WAN, and WLAN).
5.2 The Network Map Screen
CHAPTER 5
Screens
Use this screen to view the network connection status of the device and its clients. A warning message
appears if there is a connection problem.
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Figure 15 Network Map: Icon View Mode
If you want to view information about a client, click the client’s name and Info. Click the IP address if
you want to change it. If you want to change the name or icon of the client, click Change name/icon.
If you prefer to view the status in a list, click List View in the Viewing mode selection box. You can
configure how often you want the VMG to update this screen in Refresh interval.
Figure 16 Network Map: List View Mode
5.3 The Status Screen
Use this screen to view the status of the VMG. Click Status to open this screen.
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Figure 17 Status Screen
Chapter 5 Network Map and Status Screens
Each field is described in the following table.
Table 7 Status Screen
LABELDESCRIPTION
Refresh IntervalSelect how often you want the VMG to update this screen.
Device Information
Host NameThis field displays the VMG system name. It is used for identification.
Model NumberThis shows the model number of your VMG.
Serial NumberThis field displays the serial number of the VMG.
Firmware
Version
WAN Information (These fields display when you have a WAN connection.)
EncapsulationThis field displays the current encapsulation method.
This is the current version of the firmware inside the VMG.
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Table 7 Status Screen (continued)
LABELDESCRIPTION
IP AddressThis field displays the current IP address of the VMG in the WAN.
IP Subnet MaskThis field displays the current subnet mask in the WAN.
MAC AddressThis shows the WAN Ethernet adapter MAC (Media Access Control) Address of your VMG.
Primary DNS
server
Secondary DNS
server
DHCPThis field displays whether the WAN interface is using a DHCP IP address or a static IP address.
LAN Information
IP AddressThis is the current IP address of the VMG in the LAN.
IP Subnet MaskThis is the current subnet mask in the LAN.
IPv6 Link Local
Address
DHCPThis field displays what DHCP services the VMG is providing to the LAN. The possible values
MAC AddressThis shows the LAN Ethernet adapter MAC (Media Access Control) Address of your VMG.
WLAN 2.4G/5G Information
MAC AddressThis shows the wireless adapter MAC (Media Access Control) Address of the wireless
StatusThis displays whether the WLAN is activated.
SSIDThis is the descriptive name used to identify the VMG in a wireless LAN.
ChannelThis is the channel number used by the wireless interface now.
SecurityThis displays the type of security mode the wireless interface is using in the wireless LAN.
802.11 ModeThis displays the type of 802.11 mode the wireless interface is using in the wireless LAN.
WPSThis displays whether WPS is activated on the wireless interface.
Security
FirewallThis displays the firewall’s current security level.
System Status
System Up TimeThis field displays how long the VMG has been running since it last started up. The VMG starts
Current Date/
Time
System Resource
CPU UsageThis field displays what percentage of the VMG’s processing ability is currently used. When
This field displays the first DNS server address assigned by the ISP.
This field displays the second DNS server address assigned by the ISP.
Choices are:
Client - The WAN interface can obtain an IP address from a DHCP server.
None - The WAN interface is using a static IP address.
This field displays the current link-local address of the VMG for the LAN interface.
are:
Server - The VMG is a DHCP server in the LAN. It assigns IP addresses to other computers in
the LAN.
Relay - The VMG acts as a surrogate DHCP server and relays DHCP requests and responses
between the remote server and the clients.
None - The VMG is not providing any DHCP services to the LAN.
interface.
up when you plug it in, when you restart it (Maintenance > Reboot), or when you reset it.
This field displays the current date and time in the VMG. You can change this in
Maintenance> Time Setting.
this percentage is close to 100%, the VMG is running at full load, and the throughput is not
going to improve anymore. If you want some applications to have more throughput, you
should turn off other applications (for example, using QoS; see Chapter 10 on page 142).
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Table 7 Status Screen (continued)
LABELDESCRIPTION
Memory UsageThis field displays what percentage of the VMG’s memory is currently used. Usually, this
percentage should not increase much. If memory usage does get close to 100%, the VMG is
probably becoming unstable, and you should restart the device. See Section 39.2 on page
283, or turn off the device (unplug the power) for a few seconds.
NAT Session
Usage
Interface Status
InterfaceThis column displays each interface the VMG has.
StatusThis field indicates the interface’s use status.
RateFor the Ethernet WAN and LAN interface, this displays the port speed and duplex setting.
Registration Status
AccountThis column displays each SIP account in the VMG.
ActionIf the SIP account is already registered with the SIP server, the Account Status field displays
This field displays what percentage of the VMG supported NAT sessions are currently being
used. This field also displays the number of active NAT sessions and the maximum number of
NAT sessions the VMG can support.
For the LAN and Ethernet WAN interfaces, this field displays Up when using the interface and
NoLink when not using the interface.
For a WLAN interface, this field displays the enabled (Up) or disabled (Disable) state of the
interface.
For the DSL interface, this field displays Down (line down), Up (line up or connected) ,Drop
(dropping a call) if you're using PPPoE encapsulation, and NoLink when not using the
interface.
For the cellular interface, this field displays Up when using the interface and NoDevice when
no device is detected in any USB slot.
For the DSL interface, it displays the downstream and upstream transmission rate.
For the WLAN interface, it displays the maximum transmission rate or N/A with WLAN
disabled.
For the cellular interface, this field displays Up when a cellular device is installed in a USB slot
and N/A when no device is detected in any USB slot.
Registered.
Click Unregister to delete the SIP account’s registration in the SIP server. This does not cancel
your SIP account, but it deletes the mapping between your SIP identity and your IP address
or domain name.
If the SIP account is not registered with the SIP server, the Account Status field displays Not Registered.
Click Register to have the VMG attempt to register the SIP account with the SIP server.
The button is grayed out if the SIP account is disabled.
Account StatusThis field displays the current registration status of the SIP account. You have to register SIP
accounts with a SIP server to use VoIP.
Inactive - The SIP account is not active. You can activate it in VoIP > SIP > SIP Account.
Not Registered - The last time the VMG tried to register the SIP account with the SIP server,
the attempt failed. Use the Register button to register the account again. The VMG
automatically tries to register the SIP account when you turn on the VMG or when you
activate it.
Registered - The SIP account is already registered with the SIP server. You can use it to make
a VoIP call.
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Table 7 Status Screen (continued)
LABELDESCRIPTION
Service ProviderThis column displays the service provider name and SIP number for each SIP account.
URIThis field displays the account number and service domain of the SIP account. You can
change these in the VoIP > SIP screens.
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6.1 Overview
DSL
This chapter discusses the VMG’s Broadband screens. Use these screens to configure your VMG for
Internet access.
A WAN (Wide Area Network) connection is an outside connection to another network or the Internet. It
connects your private networks, such as a LAN (Local Area Network) and other networks, so that a
computer in one location can communicate with computers in other locations.
Figure 18 LAN and WAN
CHAPTER 6
Broadband
6.1.1 What You Can Do in this Chapter
• Use the Broadband screen to view, remove or add a WAN interface. You can also configure the WAN
settings on the VMG for Internet access (Section 6.2 on page 72).
• Use the Cellular Backup screen to configure cellular WAN connection (Section 6.3 on page 81).
• Use the Advanced screen to enable or disable PTM over ADSL, Annex M/Annex J, and DSL PhyR
functions (Section 6.4 on page 85).
Table 8 WAN Setup Overview
LAYER-2 INTERFACEINTERNET CONNECTION
CONNECTIONDSL LINK TYPEMODEENCAPSULATIONCONNECTION SETTINGS
ADSL/VDSL over
PTM
N/ARoutingPPPoEPPP information, IPv4/IPv6 IP address,
BridgeN/AVLAN and QoS
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routing feature, DNS server, VLAN,
QoS, and MTU
IPoEIPv4/IPv6 IP address, routing feature,
DNS server, VLAN, QoS, and MTU
Table 8 WAN Setup Overview
LAYER-2 INTERFACEINTERNET CONNECTION
CONNECTIONDSL LINK TYPEMODEENCAPSULATIONCONNECTION SETTINGS
ADSL over ATMEoARoutingPPPoE/PPPoAATM PVC configuration, PPP
Ethernet
N/A
6.1.2 What You Need to Know
Chapter 6 Broadband
information, IPv4/IPv6 IP address,
routing feature, DNS server, VLAN,
QoS, and MTU
IPoE/IPoAATM PVC configuration, IPv4/IPv6 IP
address, routing feature, DNS server,
VLAN, QoS, and MTU
BridgeN/AATM PVC configuration, and QoS
RoutingPPPoEPPP user name and password, WAN
IPv4/IPv6 IP address, routing feature,
DNS server, VLAN, QoS, and MTU
IPoEWAN IPv4/IPv6 IP address, NAT, DNS
server and routing feature
BridgeN/AVLAN and QoS
The following terms and concepts may help as you read this chapter.
WAN IP Address
The WAN IP address is an IP address for the VMG, which makes it accessible from an outside network. It is
used by the VMG to communicate with other devices in other networks. It can be static (fixed) or
dynamically assigned by the ISP each time the VMG tries to access the Internet.
If your ISP assigns you a static WAN IP address, they should also assign you the subnet mask and DNS
server IP address(es).
ATM
Asynchronous Transfer Mode (ATM) is a WAN networking technology that provides high-speed data
transfer. ATM uses fixed-size packets of information called cells. With ATM, a high QoS (Quality of Service)
can be guaranteed. ATM uses a connection-oriented model and establishes a virtual circuit (VC)
between Finding Out More
PTM
Packet Transfer Mode (PTM) is packet-oriented and supported by the VDSL2 standard. In PTM, packets
are encapsulated directly in the High-level Data Link Control (HDLC) frames. It is designed to provide a
low-overhead, transparent way of transporting packets over DSL links, as an alternative to ATM.
IPv6 Introduction
IPv6 (Internet Protocol version 6), is designed to enhance IP address size and features. The increase in
IPv6 address size to 128 bits (from the 32-bit IPv4 address) allows up to 3.4 x 10
can use IPv4/IPv6 dual stack to connect to IPv4 and IPv6 networks, and supports IPv6 rapid deployment
(6RD).
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IP addresses. The VMG
69
Chapter 6 Broadband
IPv6 Addressing
The 128-bit IPv6 address is written as eight 16-bit hexadecimal blocks separated by colons (:). This is an
example IPv6 address 2001:0db8:1a2b:0015:0000:0000:1a2f:0000.
IPv6 addresses can be abbreviated in two ways:
• Leading zeros in a block can be omitted. So
2001:0db8:1a2b:0015:0000:0000:1a2f:0000 can be written as
2001:db8:1a2b:15:0:0:1a2f:0.
• Any number of consecutive blocks of zeros can be replaced by a double colon. A double
colon can only appear once in an IPv6 address. So
2001:0db8:0000:0000:1a2f:0000:0000:0015 can be written as
2001:0db8::1a2f:0000:0000:0015, 2001:0db8:0000:0000:1a2f::0015,
2001:db8::1a2f:0:0:15 or 2001:db8:0:0:1a2f::15.
IPv6 Prefix and Prefix Length
Similar to an IPv4 subnet mask, IPv6 uses an address prefix to represent the network address. An IPv6
prefix length specifies how many most significant bits (start from the left) in the address compose the
network address. The prefix length is written as “/x” where x is a number. For example,
2001:db8:1a2b:15::1a2f:0/32
means that the first 32 bits (2001:db8) is the subnet prefix.
IPv6 Subnet Masking
Both an IPv6 address and IPv6 subnet mask compose of 128-bit binary digits, which are divided into
eight 16-bit blocks and written in hexadecimal notation. Hexadecimal uses four bits for each character
(1 ~ 10, A ~ F). Each block’s 16 bits are then represented by four hexadecimal characters. For example,
FFFF:FFFF:FFFF:FFFF:FC00:0000:0000:0000.
IPv6 Rapid Deployment
Use IPv6 Rapid Deployment (6rd) when the local network uses IPv6 and the ISP has an IPv4 network.
When the VMG has an IPv4 WAN address and you set IPv6/IPv4 Mode to IPv4 Only, you can enable 6rd
to encapsulate IPv6 packets in IPv4 packets to cross the ISP’s IPv4 network.
The VMG generates a global IPv6 prefix from its IPv4 WAN address and tunnels IPv6 traffic to the ISP’s
Border Relay router (BR in the figure) to connect to the native IPv6 Internet. The local network can also
use IPv4 services. The VMG uses it’s configured IPv4 WAN IP to route IPv4 traffic to the IPv4 Internet.
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Figure 19 IPv6 Rapid Deployment
DSL
DSL
Chapter 6 Broadband
Dual Stack Lite
Use Dual Stack Lite when local network computers use IPv4 and the ISP has an IPv6 network. When the
VMG has an IPv6 WAN address and you set IPv6/IPv4 Mode to IPv6 Only, you can enable Dual Stack Lite
to use IPv4 computers and services.
The VMG tunnels IPv4 packets inside IPv6 encapsulation packets to the ISP’s Address Family Transition
Router (AFTR in the graphic) to connect to the IPv4 Internet. The local network can also use IPv6 services.
The VMG uses it’s configured IPv6 WAN IP to route IPv6 traffic to the IPv6 Internet.
Figure 20 Dual Stack Lite
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6.1.3 Before You Begin
You need to know your Internet access settings such as encapsulation and WAN IP address. Get this
information from your ISP.
6.2 The Broadband Screen
Use this screen to change your VMG’s Internet access settings. Click Network Setting > Broadband from
the menu. The summary table shows you the configured WAN services (connections) on the VMG.
Figure 21 Network Setting > Broadband
The following table describes the labels in this screen.
Table 9 Network Setting > Broadband
LABELDESCRIPTION
Add New WAN
Interface
#This is the index number of the entry.
NameThis is the service name of the connection.
TypeThis shows whether it is an ATM, Ethernet or a PTM connection.
ModeThis shows whether the connection is in routing or bridge mode.
EncapsulationThis is the method of encapsulation used by this connection.
802.1pThis indicates the 802.1p priority level assigned to traffic sent through this connection. This
802.1qThis indicates the VLAN ID number assigned to traffic sent through this connection. This displays
IGMP ProxyThis shows whether the VMG act as an IGMP proxy on this connection.
NATThis shows whether NAT is activated or not for this connection.
Default
Gateway
IPv6This shows whether IPv6 is activated or not for this connection. IPv6 is not available when the
MLD ProxyThis shows whether Multicast Listener Discovery (MLD) is activated or not for this connection. MLD
ModifyClick the Edit icon to configure the WAN connection.
Click this button to create a new connection.
displays N/A when there is no priority level assigned.
N/A when there is no VLAN ID number assigned.
This shows whether the VMG use the WAN interface of this connection as the system default
gateway.
connection uses the bridging service.
is not available when the connection uses the bridging service.
Click the Delete icon to remove the WAN connection.
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Chapter 6 Broadband
6.2.1 Add/Edit Internet Connection
Click Add New WAN Interfac e in the Broadband screen or the Edit icon next to an existing WAN interface
to configure a WAN connection. The screen varies depending on the interface type, mode,
encapsulation, and IPv6/IPv4 mode you select.
6.2.1.1 Routing Mode
Use Routing mode if your ISP give you one IP address only and you want multiple computers to share an
Internet account.
The following example screen displays when you select the ADSL over ATM connection type, Routing
mode, and PPPoE encapsulation. The screen varies when you select other interface type,
encapsulation, and IPv6/IPv4 mode.
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Chapter 6 Broadband
Figure 22 Network Setting > Broadband > Add New WAN Interface/Edit (Routing Mode)
The following table describes the labels in this screen.
Table 10 Network Setting > Broadband > Add New WAN Interface/Edit (Routing Mode)
LABELDESCRIPTION
General
ActiveSelect Enable or Disable to activate or deactivate the interface.
NameSpecify a descriptive name for this connection.
TypeSelect whether it is an ADSL/VDSL over PTM or ADSL over ATM connection.
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Table 10 Network Setting > Broadband > Add New WAN Interface/Edit (Routing Mode) (continued)
LABELDESCRIPTION
ModeSelect Routing if your ISP give you one IP address only and you want multiple computers to share
an Internet account.
EncapsulationSelect the method of encapsulation used by your ISP from the drop-down list box. This option is
available only when you select Routing in the Mode field.
The choices depend on the connection type you selected. If your connection type is ADSL/VDSL
over PTM, the choices are PPPoE and IPoE. If your connection type is ADSL over ATM, the choices
are PPPoE, PPPoA, IPoE and IPoA. If your connection type is Ethernet, the choices are PPPoE and
IPoE.
IPv4/IPv6 ModeSelect IPv4 Only if you want the VMG to run IPv4 only.
Select IPv4 IPv6 DualStack to allow the VMG to run IPv4 and IPv6 at the same time.
Select IPv6 Only if you want the VMG to run IPv6 only.
PPP Information (This is available only when you select PPPoE or PPPoA in the Mode field.)
PPP User Name Enter the user name exactly as your ISP assigned. If assigned a name in the form user@domain
PPP PasswordEnter the password associated with the user name above. Select password unmask to show your
PPP Connection
Trigger
Idle TimeoutThis value specifies the time in minutes that elapses before the router automatically disconnects
where domain identifies a service name, then enter both components exactly as given.
entered password in plain text.
Select when to have the VMG establish the PPP connection.
Auto Connect - select this to not let the connection time out.
On Demand - select this to automatically bring up the connection when the VMG receives
packets destined for the Internet.
from the PPPoE server.
This field is not available if you select Auto Connect in the PPP Connection Trigger field.
PPPoE
Passthrough
IP Address (This is available only when you select IPv4 Only or IPv4 IPv6 DualStack in the IPv4/IPv6 Mode field.)
Obtain an IP
Address
Automatically
Static IP Address Select this option If the ISP assigned a fixed IP address.
IP AddressEnter the static IP address provided by your ISP.
Subnet Mask Enter the subnet mask provided by your ISP.
Gateway IP
Address
ATM PVC Configuration (These fields appear when the Type is set to ADSL over ATM.)
VPI The valid range for the VPI is 0 to 255. Enter the VPI assigned to you.
VCI The valid range for the VCI is 32 to 65535 (0 to 31 is reserved for local management of ATM
This field is available when you select PPPoE encapsulation.
In addition to the VMG’s built-in PPPoE client, you can enable PPPoE pass through to allow up to
ten hosts on the LAN to use PPPoE client software on their computers to connect to the ISP via
the VMG. Each host can have a separate account and a public WAN IP address.
PPPoE pass through is an alternative to NAT for application where NAT is not appropriate.
Disable PPPoE pass through if you do not need to allow hosts on the LAN to use PPPoE client
software on their computers to connect to the ISP.
A static IP address is a fixed IP that your ISP gives you. A dynamic IP address is not fixed; the ISP
assigns you a different one each time you connect to the Internet. Select this if you have a
dynamic IP address.
Enter the gateway IP address provided by your ISP.
traffic). Enter the VCI assigned to you.
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Table 10 Network Setting > Broadband > Add New WAN Interface/Edit (Routing Mode) (continued)
LABELDESCRIPTION
Encapsulation Select the method of multiplexing used by your ISP from the drop-down list box. Choices are:
• LLC/SNAP-BRIDGING: In LCC encapsulation, bridged PDUs are encapsulated by identifying
the type of the bridged media in the SNAP header. This is available only when you select IPoE
or PPPoE in the Select DSL Link Type field.
• VC/MUX: In VC multiplexing, each protocol is carried on a single ATM virtual circuit (VC). To
transport multiple protocols, the VMG needs separate VCs. There is a binding between a VC
and the type of the network protocol carried on the VC. This reduces payload overhead
since there is no need to carry protocol information in each Protocol Data Unit (PDU)
payload.
Service
Category
Peak Cell
Rate [cells/s]
Sustainable
Cell Rate
Maximum
Burst Size
[cells]
VLAN (These fields appear when the Type is set to ADSL/VDSL over PTM.)
ActiveSelect Enable to activate VLAN on this WAN interface. Otherwise, select Disable to deactivate.
802.1p IEEE 802.1p defines up to 8 separate traffic types by inserting a tag into a MAC-layer frame that
Select UBR Without PCRfor applications that are non-time sensitive, such as e-mail.
Select CBR (Continuous Bit Rate) to specify fixed (always-on) bandwidth for voice or data traffic.
Select Non Realtime VBR (non real-time Variable Bit Rate) for connections that do not require
closely controlled delay and delay variation.
Select Realtime VBR (real-time Variable Bit Rate) for applications with bursty connections that
require closely controlled delay and delay variation.
Divide the DSL line rate (bps) by 424 (the size of an ATM cell) to find the Peak Cell Rate (PCR). This
is the maximum rate at which the sender can send cells. Type the PCR here.
The Sustain Cell Rate (SCR) sets the average cell rate (long-term) that can be transmitted. Type
the SCR, which must be less than the PCR. Note that system default is 0 cells/sec.
Maximum Burst Size (MBS) refers to the maximum number of cells that can be sent at the peak
rate. Type the MBS, which is less than 65535.
contains bits to define class of service.
Select the IEEE 802.1p priority level (from 0 to 7) to add to traffic through this connection. The
greater the number, the higher the priority level.
802.1qType the VLAN ID number (from 1 to 4094) for traffic through this connection.
MTU
MTUEnter the MTU (Maximum Transfer Unit) size for this traffic.
Routing Feature (This is available only when you select IPv4 Only or IPv4 IPv6 DualStack in the IPv4/IPv6 Mode field.)
NAT Enable Select this option to activate NAT on this connection.
Fullcone NAT
Enable
IGMP Proxy
Enable
Apply as Default
Gateway
DNS Server (This is available only when you select IPv4 Only or IPv4 IPv6 DualStack in the IPv4/IPv6 Mode field.)
Select this option to enable full cone NAT on this connection. This field is available only when you
activate NAT. In full cone NAT, the VMG maps all outgoing packets from an internal IP address
and port to a single IP address and port on the external network. The VMG also maps packets
coming to that external IP address and port to the internal IP address and port.
Internet Group Multicast Protocol (IGMP) is a network-layer protocol used to establish
membership in a Multicast group - it is not used to carry user data.
Select this option to have the VMG act as an IGMP proxy on this connection. This allows the VMG
to get subscribing information and maintain a joined member list for each multicast group. It can
reduce multicast traffic significantly.
Select this option to have the VMG use the WAN interface of this connection as the system
default gateway.
Select Obtain DNS Info Automically if you want the VMG to use the DNS server addresses
assigned by your ISP.
Select Use Following Static DNS Address if you want the VMG to use the DNS server addresses
you configure manually.
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Table 10 Network Setting > Broadband > Add New WAN Interface/Edit (Routing Mode) (continued)
LABELDESCRIPTION
Primary DNS
Server
Secondary DNS
Server
Tunnel
The DS-Lite (Dual Stack Lite) fields display when you set the IPv4/IPv6 Mode field to IPv6 Only.
Enable Dual Stack Lite to let local computers use IPv4 through an ISP’s IPv6 network. See Dual Stack Lite on page 71
for more information.
Enabled DS-LiteThis is available only when you select IPv6 Only in the IPv4/IPv6 Mode field. Select Enable to let
DS-Lite Relay
Server IP
6RD
The 6RD (IPv6 rapid deployment) fields display when you set the IPv6/IPv4 Mode field to IPv4 Only. See IPv6 Rapid
Deployment on page 70 for more information.
6RDSelect Enable to tunnel IPv6 traffic from the local network through the ISP’s IPv4 network.
Enter the first DNS server address assigned by the ISP.
Enter the second DNS server address assigned by the ISP.
local computers use IPv4 through an ISP’s IPv6 network.
Specify the transition router’s IPv6 address.
Select Manually Configured if you have the IPv4 address of the relay server. Otherwise, select
Automatically configured by DHCPC to have the VMG detect it automatically through DHCP.
The Automatically configured by DHCPC option is configurable only when you set the method of
encapsulation to IPoE.
Service Provider
IPv6 Prefix
IPv4 Mask
Length
Border Relay
IPv4 Address
DHCPC Options (This is available only when you select IPv4 Only or IPv4 IPv6 DualStack in the IPv4/IPv6 Mode field.)
Request Options Select Option 43 to have the VMG automatically add vendor specific information in the DHCP
Sent Options
option 60Select this and enter the device identity you want the VMG to add in the DHCP discovery
Vendor IDEnter the Vendor Class Identifier, such as the type of the hardware or firmware.
option 61Select this and enter any string that identifies the device.
IAIDEnter the Identity Association Identifier (IAID) of the device, for example, the WAN connection
DUIDEnter the hardware type, a time value and the MAC address of the device.
option 125Select this to have the VMG automatically generate and add vendor specific parameters in the
IPv6 Address (This is available only when you select IPv4 IPv6 DualStack or IPv6 Only in the IPv4/IPv6 Mode field.)
Obtain an IPv6
Address
Automatically
Enter an IPv6 prefix for tunneling IPv6 traffic to the ISP’s border relay router and connecting to the
native IPv6 Internet.
Enter the subnet mask number (1~32) for the IPv4 network.
When you select Manually Configured, specify the relay server’s IPv4 address in this field.
packets to request the vendor specific options from the DHCP server.
Select Option 120 to have the VMG get the IP address or a fully-qualified domain name of SIP
server from DHCP.
Select Option 121 to have the VMG push static routes to clients.
packets that go to the DHCP server.
index number.
DHCP discovery packets that go to the DHCP server.
Select Obtain an IPv6 Address Automatically if you want to have the VMG use the IPv6 prefix
from the connected router’s Router Advertisement (RA) to generate an IPv6 address.
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Table 10 Network Setting > Broadband > Add New WAN Interface/Edit (Routing Mode) (continued)
LABELDESCRIPTION
Static IPv6
Address
IPv6 Address Enter an IPv6 IP address that your ISP gave to you for this WAN interface.
Prefix Length Enter the address prefix length to specify how many most significant bits in an IPv6 address
IPv6 Default
Gateway
IPv6 Routing Feature (This is available only when you select IPv4 IPv6 DualStack or IPv6 Only in the IPv4/IPv6 Mode
field. You can enable IPv6 routing features in the following section.)
MLD Proxy
Enable
Apply as Default
Gateway
IPv6 DNS Server (This is available only when you select IPv4 IPv6 DualStack or IPv6 Only in the IPv4/IPv6 Mode field.
Configure the IPv6 DNS server in the following section.
Obtain IPv6 DNS
Info
Automatically
Use Following
Static IPv6 DNS
Address
Primary DNS
Server
Secondary DNS
Server
Select Static IPv6 Address if you have a fixed IPv6 address assigned by your ISP. When you select
this, the following fields appear.
compose the network address.
Enter the IP address of the next-hop gateway. The gateway is a router or switch on the same
segment as your VMG's interface(s). The gateway helps forward packets to their destinations.
Select this checkbox to have the VMG act as an MLD proxy on this connection. This allows the
VMG to get subscription information and maintain a joined member list for each multicast
group. It can reduce multicast traffic significantly.
Select this option to have the VMG use the WAN interface of this connection as the system
default gateway.
Select Obtain IPv6 DNS Info Automatically to have the VMG get the IPv6 DNS server addresses
from the ISP automatically.
Select Use Following Static IPv6 DNS Address to have the VMG use the IPv6 DNS server addresses
you configure manually.
Enter the first IPv6 DNS server address assigned by the ISP.
Enter the second IPv6 DNS server address assigned by the ISP.
6.2.1.2 Bridge Mode
Click the Add new WAN Interface in the Network Setting > Broadband screen or the Edit icon next to the
connection you want to configure. Select Bridge as the encapsulation mode. The screen varies
depending on the interface type you select.
If you select ADSL/VDSL over PTM as the interface type, the following screen appears.
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Chapter 6 Broadband
Figure 23 Network Setting > Broadband > Add New WAN Interface/Edit (ADSL/VDSL over PTM -Bridge
Mode)
The following table describes the fields in this screen.
Table 11 Network Setting > Broadband > Add New WAN Interface/Edit (ADSL/VDSL over PTM -Bridge
Mode)
LABELDESCRIPTION
General
ActiveSelect Enable or Disable to activate or deactivate the interface.
NameEnter a service name of the connection.
TypeSelect ADSL/VDSL over PTM as the interface that you want to configure. The VMG uses the VDSL
technology for data transmission over the DSL port.
ModeSelect Bridge when your ISP provides you more than one IP address and you want the connected
VLANThis section is available only when you select ADSL/VDSL over PTM in the Type field.
ActiveSelect Enable to activate VLAN on this WAN interface. Otherwise, select Disable to deactivate.
802.1pIEEE 802.1p defines up to 8 separate traffic types by inserting a tag into a MAC-layer frame that
computers to get individual IP address from ISP’s DHCP server directly. If you select Bridge, you
cannot use routing functions, such as QoS, Firewall, DHCP server and NAT on traffic from the
selected LAN port(s).
contains bits to define class of service.
Select the IEEE 802.1p priority level (from 0 to 7) to add to traffic through this connection. The greater
the number, the higher the priority level.
802.1qType the VLAN ID number (from 0 to 4094) for traffic through this connection.
OKClick OK to save your changes.
CancelClick Cancel to exit this screen without saving.
If you select ADSL over ATM as the interface type, the following screen appears.
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Chapter 6 Broadband
Figure 24 Network Setting > Broadband > Add New WAN Interface/Edit (ADSL over ATM-Bridge Mode)
The following table describes the fields in this screen.
Table 12 Network Setting > Broadband > Add New WAN Interface/Edit (ADSL over ATM-Bridge Mode)
LABELDESCRIPTION
General
ActiveSelect Enable or Disable to activate or deactivate the interface.
NameEnter a service name of the connection.
TypeSelect ADSL over ATM as the interface that you want to configure. The VMG uses the ADSL
technology for data transmission over the DSL port.
ModeSelect Bridge when your ISP provides you more than one IP address and you want the
connected computers to get individual IP address from ISP’s DHCP server directly. If you select
Bridge, you cannot use routing functions, such as QoS, Firewall, DHCP server and NAT on traffic
from the selected LAN port(s).
ATM PVC Configuration (These fields appear when the Type is set to ADSL over ATM.)
VPIThe valid range for the VPI is 0 to 255. Enter the VPI assigned to you.
VCI
Encapsulation
Peak Cell
Rate [cells/s]
Sustainable
Cell Rate
Maximum
Burst Size
[cells]
The valid range for the VCI is 32 to 65535 (0 to 31 is reserved for local management of ATM
traffic). Enter the VCI assigned to you.
Select the method of multiplexing used by your ISP from the drop-down list box. Choices are:
• LLC/SNAP-BRIDGING: In LCC encapsulation, bridged PDUs are encapsulated by identifying the
type of the bridged media in the SNAP header. This is available only when you select IPoE or PPPoE in the Encapsulation field.
• VC/MUX: In VC multiplexing, each protocol is carried on a single ATM virtual circuit (VC). To
transport multiple protocols, the VMG needs separate VCs. There is a binding between a VC
and the type of the network protocol carried on the VC. This reduces payload overhead since
there is no need to carry protocol information in each Protocol Data Unit (PDU) payload.
Divide the DSL line rate (bps) by 424 (the size of an ATM cell) to find the Peak Cell Rate (PCR). This
is the maximum rate at which the sender can send cells. Type the PCR here.
The Sustain Cell Rate (SCR) sets the average cell rate (long-term) that can be transmitted. Type
the SCR, which must be less than the PCR. Note that system default is 0 cells/sec.
Maximum Burst Size (MBS) refers to the maximum number of cells that can be sent at the peak
rate. Type the MBS, which is less than 65535.
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Table 12 Network Setting > Broadband > Add New WAN Interface/Edit (ADSL over ATM-Bridge Mode)
LABELDESCRIPTION
Service
Category
VLANThis section is available only when you select ADSL/VDSL over PTM in the Type field.
ActiveSelect Enable to activate VLAN on this WAN interface. Otherwise, select Disable to deactivate.
802.1pIEEE 802.1p defines up to 8 separate traffic types by inserting a tag into a MAC-layer frame that
802.1qType the VLAN ID number (from 0 to 4094) for traffic through this connection.
OKClick OK to save your changes.
CancelClick Cancel to exit this screen without saving.
Select UBR Without PCR for applications that are non-time sensitive, such as e-mail.
Select CBR (Continuous Bit Rate) to specify fixed (always-on) bandwidth for voice or data traffic.
Select Non Realtime VBR (non real-time Variable Bit Rate) for connections that do not require
closely controlled delay and delay variation.
Select Realtime VBR (real-time Variable Bit Rate) for applications with bursty connections that
require closely controlled delay and delay variation.
contains bits to define class of service.
Select the IEEE 802.1p priority level (from 0 to 7) to add to traffic through this connection. The
greater the number, the higher the priority level.
6.3 The Cellular Backup Screen
The USB port (at the side panel of the VMG) allows you to attach a cellular dongle to wirelessly connect
to a cellular network for Internet access. You can have the VMG use the cellular WAN connection as a
backup. Disconnect the DSL and Ethernet WAN ports to use the cellular dongle as your primary WAN
connection. The VMG automatically uses a wired WAN connection when available.
Figure 25 Internet Access Application: Cellular WAN
Use this screen to configure your cellular settings. Click Network Setting > Broadband > Cellular Backup.
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Note: The actual data rate you obtain varies depending the cellular card you use, the signal
strength to the service provider’s base station, and so on.
The following table describes the labels in this screen.
Table 13 Network Setting > Broadband > Cellular Backup
LABELDESCRIPTION
General
Cellular BackupSelect Enable to have the VMG use the cellular connection as your WAN or a backup when the
Ping CheckSelect Enable if you want the VMG to ping check the connection status of your WAN. You can
Check Cycle Enter the frequency of the ping check in this field.
Consecutive Fail Enter how many consecutive failures are required before cellular backup is triggered.
Ping Default
Gateway
Ping the HostSelect this to have the VMG ping the particular host name or IP address you typed in this field.
Cellular Connection Settings
Card
description
UsernameType the user name (of up to 64 ASCII printable characters) given to you by your service
PasswordType the password (of up to 64 ASCII printable characters) associated with the user name
PINA PIN (Personal Identification Number) code is a key to a cellular card. Without the PIN code,
wired WAN connection fails.
configure the frequency of the ping check and number of consecutive failures before triggering
cellular backup.
Select this to have the VMG ping the WAN interface’s default gateway IP address.
This field displays the manufacturer and model name of your cellular card if you inserted one in
the VMG. Otherwise, it displays N/A.
provider.
above.
you cannot use the cellular card.
If your ISP enabled PIN code authentication, enter the 4-digit PIN code (0000 for example)
provided by your ISP. If you enter the PIN code incorrectly, the cellular card may be blocked by
your ISP and you cannot use the account to access the Internet.
If your ISP disabled PIN code authentication, leave this field blank.
Dial stringEnter the phone number (dial string) used to dial up a connection to your service provider’s base
station. Your ISP should provide the phone number.
For example, *99# is the dial string to establish a GPRS or cellular connection in Taiwan.
APNEnter the APN (Access Point Name) provided by your service provider. Connections with
different APNs may provide different services (such as Internet access or MMS (Multi-Media
Messaging Service)) and charge method.
You can enter up to 32 ASCII printable characters. Spaces are allowed.
ConnectionSelect Nailed UP if you do not want the connection to time out.
Select on Demand if you do not want the connection up all the time and specify an idle timeout in the Max Idle Timeout field.
Max Idle
Timeout
Obtain an IP
Address
Automatically
Use the
following static
IP address
IP AddressEnter your WAN IP address in this field if you selected Use the following static IP address.
Subnet MaskEnter the subnet mask of the IP address.
Obtain DNS info
dynamically
This value specifies the time in minutes that elapses before the VMG automatically disconnects
from the ISP.
Select this option if your ISP did not assign you a fixed IP address.
Select this option if the ISP assigned a fixed IP address.
Select this to have the VMG get the DNS server addresses from the ISP automatically.
Mail AccountSelect an e-mail address you have configured in Maintenance > Email Notification. The VMG
Cellular backup
Email Title
Send
Notification to
Email
AdvancedClick this to show the advanced cellular backup settings.
Budget Setup
Enable Budget
Control
Time BudgetSelect this and specify the amount of time (in hours) that the cellular connection can be used
Data Budget
(Mbytes)
Select this to have the VMG use the DNS server addresses you configure manually.
Enter the first DNS server address assigned by the ISP.
Enter the second DNS server address assigned by the ISP.
Select this to enable the e-mail notification function. The VMG will e-mail you a notification when
the cellular connection is up.
uses the corresponding mail server to send notifications.
You must have configured a mail server already in the Maintenance > Email Notification screen.
Type a title that you want to be in the subject line of the e-mail notifications that the VMG sends.
Notifications are sent to the e-mail address specified in this field. If this field is left blank,
notifications cannot be sent via e-mail.
Select Enable to set a monthly limit for the user account of the installed cellular card. You can set
a limit on the total traffic and/or call time. The VMG takes the actions you specified when a limit
is exceeded during the month.
within one month. If you change the value after you configure and enable budget control, the
VMG resets the statistics.
Select this and specify how much downstream and/or upstream data (in Mega bytes) can be
transmitted via the cellular connection within one month.
Select Download/Upload to set a limit on the total traffic in both directions.
Select Download to set a limit on the downstream traffic (from the ISP to the VMG).
Data Budget
(kPackets)
Reset all budget
counters on
Reset time and
data budget
counters
Select Upload to set a limit on the upstream traffic (from the VMG to the ISP).
If you change the value after you configure and enable budget control, the VMG resets the
statistics.
Select this and specify how much downstream and/or upstream data (in k Packets) can be
transmitted via the cellular connection within one month.
Select Download/Upload to set a limit on the total traffic in both directions.
Select Download to set a limit on the downstream traffic (from the ISP to the VMG).
Select Upload to set a limit on the upstream traffic (from the VMG to the ISP).
If you change the value after you configure and enable budget control, the VMG resets the
statistics.
Select the date on which the VMG resets the budget every month. Select last if you want the
VMG to reset the budget on the last day of the month. Select specific and enter the number of
the date you want the VMG to reset the budget
Click this button to reset the time and data budgets immediately. The count starts over with the
cellular connection’s full configured monthly time and data budgets. This does not affect the
normal monthly budget restart; so if you configured the time and data budget counters to reset
on the second day of the month and you use this button on the first, the time and data budget
counters will still reset on the second.
Enable % of time
budget/data
budget
(Mbytes)/data
budget
(kPackets)
Actions when
over budget
Current Cellular
connection
Actions
Enable Email
Notification
Mail AccountSelect an e-mail address you have configured in Maintenance > Email Notification. The VMG
Cellular Backup
E-mail Title
Send
Notification to
Email
IntervalEnter the interval of how many minutes you want the VMG to e-mail you.
Enable LogSelect this to activate the logging function at the interval you set in this field.
BasicClick this to hide the advanced settings of cellular backup.
ApplyClick Apply to save your changes back to the VMG.
CancelClick Cancel to return to the previous configuration.
Specify the actions the VMG takes before the time or data limit exceeds.
Select Enable and enter a number from 1 to 99 in the percentage fields. If you change the value
after you configure and enable budget control, the VMG resets the statistics.
Specify the actions the VMG takes when the time or data limit is exceeded.
Select Keep to maintain an existing cellular connection or Drop to disconnect it.
Select this to enable the e-mail notification function. The VMG will e-mail you a notification when
there over budget occurs.
uses the corresponding mail server to send notifications.
You must have configured a mail server already in the Maintenance > Email Notification screen.
Type a title that you want to be in the subject line of the e-mail notifications that the VMG sends.
Notifications are sent to the e-mail address specified in this field. If this field is left blank,
notifications cannot be sent via e-mail.
6.4 The Advanced Screen
Use the Advanced screen to enable or disable ADSL over PTM, Annex M, DSL PhyR, and SRA (Seamless
Rate Adaptation) functions. The VMG supports the PhyR retransmission scheme. PhyR is a retransmission
scheme designed to provide protection against noise on the DSL line. It improves voice, video and data
transmission resilience by utilizing a retransmission buffer.
ITU-T G.993.2 standard defines a wide range of settings for various parameters, some of which are
encompassed in profiles as shown in the next table.
Table 14 VDSL Profiles
PROFILE
8a8.83220484.312517.550
8b8.83220484.312520.550
8c8.519724.312511.550
BANDWIDTH
(MHZ)
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NUMBER OF
DOWNSTREAM
CARRIERS
85
CARRIER
BANDWIDTH
(KHZ)
POWER (DBM)
MAX.
DOWNSTREAM
THROUGHPUT
(MBIT/S)
Chapter 6 Broadband
Table 14 VDSL Profiles (continued)
PROFILE
8d8.83220484.312514.550
12a1227834.312514.568
12b1227834.312514.568
17a17.66440964.312514.5100
BANDWIDTH
(MHZ)
NUMBER OF
DOWNSTREAM
CARRIERS
CARRIER
BANDWIDTH
(KHZ)
POWER (DBM)
Click Network Setting > Broadband > Advanced to display the following screen.
Figure 27 Network Setting>Broadband > Advanced
MAX.
DOWNSTREAM
THROUGHPUT
(MBIT/S)
The following table describes the labels in this screen.
Table 15 Network Setting > Broadband > Advanced
LABELDESCRIPTION
DSL Capabilities
PhyR USEnable or disable PhyR US (upstream) for upstream transmission to the WAN. PhyR US should be
enabled if data being transmitted upstream is sensitive to noise. However, enabling PhyR US can
decrease the US line rate. Enabling or disabling PhyR will require the CPE to retrain. For PhyR to
function, the DSLAM must also support PhyR and have it enabled.
PhyR DSEnable or disable PhyR DS (downstream) for downstream transmission from the WAN. PhyR DS
should be enabled if data being transmitted downstream is sensitive to noise. However,
enabling PhyR DS can decrease the DS line rate. Enabling or disabling PhyR will require the CPE
to retrain. For PhyR to function, the DSLAM must also support PhyR and have it enabled.
BitswapSelect Enable to allow the VMG to adapt to line changes when you are using G.dmt.
Bit-swapping is a way of keeping the line more stable by constantly monitoring and redistributing
bits between channels.
SRAEnable or disable Seamless Rate Adaption (SRA). Select Enable to have the VMG automatically
adjust the connection’s data rate according to line conditions without interrupting service.
DSL Modulation
PTM over ADSL:Select Enable to use PTM over ADSL. Since PTM has less overhead than ATM, some ISPs use this for
better performance.
G.Dmt:ITU G.992.1 (better known as G.dmt) is an ITU standard for ADSL using discrete multitone
G.lite : ITU G.992.2 (better known as G.lite) is an ITU standard for ADSL using discrete multitone
T1.413 :ANSI T1.413 is a technical standard that defines the requirements for the single asymmetric
ADSL2 :It optionally extends the capability of basic ADSL in data rates to 12 Mbit/s downstream and,
AnnexL :Annex L is an optional specification in the ITU-T ADSL2 recommendation G.992.3 titled Specific
ADSL2+ :ADSL2+ extends the capability of basic ADSL by doubling the number of downstream channels.
AnnexM : Annex M is an optional specification in ITU-T recommendations G.992.3 (ADSL2) and G.992.5
VDSL2VDSL2 (Very High Speed Digital Subscriber Line 2) is the second generation of the VDSL standard
VDSL ProfileVDSL2 profiles differ in the width of the frequency band used to transmit the broadband signal.
8a, 8b, 8c, 8d,
12a, 12b, 17a,
US0
ApplyClick Apply to save your changes back to the VMG.
CancelClick Cancel to return to the previous configuration.
modulation. G.dmt full-rate ADSL expands the usable bandwidth of existing copper telephone
lines, delivering high-speed data communications at rates up to 8 Mbit/s downstream and 1.3
Mbit/s upstream.
modulation. G.lite does not strictly require the use of DSL filters, but like all variants of ADSL
generally functions better with splitters.
digital subscriber line (ADSL) for the interface between the telecommunications network and
the customer installation in terms of their interaction and electrical characteristics.
depending on Annex version, up to 3.5 Mbit/s upstream (with a mandatory capability of ADSL2
transceivers of 8 Mbit/s downstream and 800 kbit/s upstream).
requirements for a Reach Extended ADSL2 (READSL2) system operating in the frequency band
above POTS, therefore it is often referred to as Reach Extended ADSL2 or READSL2.The main
difference between this specification and commonly deployed Annex A is the maximum
distance that can be used. The power of the lower frequencies used for transmitting data is
boosted up to increase the reach of this signal up to 7 kilometers (23,000 ft).
The data rates can be as high as 24 Mbit/s downstream and up to 1.4 Mbit/s upstream
depending on the distance from the DSLAM to the customer's premises.
(ADSL2+), also referred to as ADSL2 M and ADSL2+ M. This specification extends the capability of
commonly deployed Annex A by more than doubling the number of upstream bits. The data
rates can be as high as 12 or 24 Mbit/s downstream and 3 Mbit/s upstream depending on the
distance from the DSLAM to the customer's premises.
(which is currently denoted VDSL1). VDSL2 allows a frequency band of up to 30MHz and
transmission rates of up to 100 Mbps in each direction. VDSL2 is defined in G.993.2.
Profiles that use a wider frequency band can deliver higher maximum speeds.
The G.993.2 VDSL standard defines a wide range of profiles that can be used in different VDSL
deployment settings, such as in a central office, a street cabinet or a building.
The VMG must comply with at least one profile specified in G.993.2. but compliance with more
than one profile is allowed.
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Chapter 6 Broadband
6.5 Technical Reference
The following section contains additional technical information about the VMG features described in
this chapter.
Encapsulation
Be sure to use the encapsulation method required by your ISP. The VMG can work in bridge mode or
routing mode. When the VMG is in routing mode, it supports the following methods.
IP over Ethernet
IP over Ethernet (IPoE) is an alternative to PPPoE. IP packets are being delivered across an Ethernet
network, without using PPP encapsulation. They are routed between the Ethernet interface and the
WAN interface and then formatted so that they can be understood in a bridged environment. For
instance, it encapsulates routed Ethernet frames into bridged Ethernet cells.
PPP over ATM (PPPoA)
PPPoA stands for Point to Point Protocol over ATM Adaptation Layer 5 (AAL5). A PPPoA connection
functions like a dial-up Internet connection. The VMG encapsulates the PPP session based on RFC1483
and sends it through an ATM PVC (Permanent Virtual Circuit) to the Internet Service Provider’s (ISP)
DSLAM (digital access multiplexer). Please refer to RFC 2364 for more information on PPPoA. Refer to RFC
1661 for more information on PPP.
PPP over Ethernet (PPPoE)
Point-to-Point Protocol over Ethernet (PPPoE) provides access control and billing functionality in a
manner similar to dial-up services using PPP. PPPoE is an IETF standard (RFC 2516) specifying how a
personal computer (PC) interacts with a broadband modem (DSL, cable, wireless, etc.) connection.
For the service provider, PPPoE offers an access and authentication method that works with existing
access control systems (for example RADIUS).
One of the benefits of PPPoE is the ability to let you access one of multiple network services, a function
known as dynamic service selection. This enables the service provider to easily create and offer new IP
services for individuals.
Operationally, PPPoE saves significant effort for both you and the ISP or carrier, as it requires no specific
configuration of the broadband modem at the customer site.
By implementing PPPoE directly on the VMG (rather than individual computers), the computers on the
LAN do not need PPPoE software installed, since the VMG does that part of the task. Furthermore, with
NAT, all of the LANs’ computers will have access.
RFC 1483
RFC 1483 describes two methods for Multiprotocol Encapsulation over ATM Adaptation Layer 5 (AAL5).
The first method allows multiplexing of multiple protocols over a single ATM virtual circuit (LLC-based
multiplexing) and the second method assumes that each protocol is carried over a separate ATM virtual
circuit (VC-based multiplexing). Please refer to RFC 1483 for more detailed information.
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Chapter 6 Broadband
Multiplexing
There are two conventions to identify what protocols the virtual circuit (VC) is carrying. Be sure to use the
multiplexing method required by your ISP.
VC-based Multiplexing
In this case, by prior mutual agreement, each protocol is assigned to a specific virtual circuit; for
example, VC1 carries IP, etc. VC-based multiplexing may be dominant in environments where dynamic
creation of large numbers of ATM VCs is fast and economical.
LLC-based Multiplexing
In this case one VC carries multiple protocols with protocol identifying information being contained in
each packet header. Despite the extra bandwidth and processing overhead, this method may be
advantageous if it is not practical to have a separate VC for each carried protocol, for example, if
charging heavily depends on the number of simultaneous VCs.
Traffic Shaping
Traffic Shaping is an agreement between the carrier and the subscriber to regulate the average rate
and fluctuations of data transmission over an ATM network. This agreement helps eliminate congestion,
which is important for transmission of real time data such as audio and video connections.
Peak Cell Rate (PCR) is the maximum rate at which the sender can send cells. This parameter may be
lower (but not higher) than the maximum line speed. 1 ATM cell is 53 bytes (424 bits), so a maximum
speed of 832Kbps gives a maximum PCR of 1962 cells/sec. This rate is not guaranteed because it is
dependent on the line speed.
Sustained Cell Rate (SCR) is the mean cell rate of each bursty traffic source. It specifies the maximum
average rate at which cells can be sent over the virtual connection. SCR may not be greater than the
PCR.
Maximum Burst Size (MBS) is the maximum number of cells that can be sent at the PCR. After MBS is
reached, cell rates fall below SCR until cell rate averages to the SCR again. At this time, more cells (up to
the MBS) can be sent at the PCR again.
If the PCR, SCR or MBS is set to the default of "0", the system will assign a maximum value that correlates
to your upstream line rate.
The following figure illustrates the relationship between PCR, SCR and MBS.
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Figure 28 Example of Traffic Shaping
ATM Traffic Classes
These are the basic ATM traffic classes defined by the ATM Forum Traffic Management 4.0 Specification.
Constant Bit Rate (CBR)
Constant Bit Rate (CBR) provides fixed bandwidth that is always available even if no data is being sent.
CBR traffic is generally time-sensitive (doesn't tolerate delay). CBR is used for connections that
continuously require a specific amount of bandwidth. A PCR is specified and if traffic exceeds this rate,
cells may be dropped. Examples of connections that need CBR would be high-resolution video and
voice.
Variable Bit Rate (VBR)
The Variable Bit Rate (VBR) ATM traffic class is used with bursty connections. Connections that use the
Variable Bit Rate (VBR) traffic class can be grouped into real time (VBR-RT) or non-real time (VBR-nRT)
connections.
The VBR-RT (real-time Variable Bit Rate) type is used with bursty connections that require closely
controlled delay and delay variation. It also provides a fixed amount of bandwidth (a PCR is specified)
but is only available when data is being sent. An example of an VBR-RT connection would be video
conferencing. Video conferencing requires real-time data transfers and the bandwidth requirement
varies in proportion to the video image's changing dynamics.
The VBR-nRT (non real-time Variable Bit Rate) type is used with bursty connections that do not require
closely controlled delay and delay variation. It is commonly used for "bursty" traffic typical on LANs. PCR
and MBS define the burst levels, SCR defines the minimum level. An example of an VBR-nRT connection
would be non-time sensitive data file transfers.
Unspecified Bit Rate (UBR)
The Unspecified Bit Rate (UBR) ATM traffic class is for bursty data transfers. However, UBR doesn't
guarantee any bandwidth and only delivers traffic when the network has spare bandwidth. An example
application is background file transfer.
IP Address Assignment
A static IP is a fixed IP that your ISP gives you. A dynamic IP is not fixed; the ISP assigns you a different one
each time. The Single User Account feature can be enabled or disabled if you have either a dynamic or
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Chapter 6 Broadband
static IP. However the encapsulation method assigned influences your choices for IP address and
default gateway.
Introduction to VLANs
A Virtual Local Area Network (VLAN) allows a physical network to be partitioned into multiple logical
networks. Devices on a logical network belong to one group. A device can belong to more than one
group. With VLAN, a device cannot directly talk to or hear from devices that are not in the same
group(s); the traffic must first go through a router.
In Multi-Tenant Unit (MTU) applications, VLAN is vital in providing isolation and security among the
subscribers. When properly configured, VLAN prevents one subscriber from accessing the network
resources of another on the same LAN, thus a user will not see the printers and hard disks of another user
in the same building.
VLAN also increases network performance by limiting broadcasts to a smaller and more manageable
logical broadcast domain. In traditional switched environments, all broadcast packets go to each and
every individual port. With VLAN, all broadcasts are confined to a specific broadcast domain.
Introduction to IEEE 802.1Q Tagged VLAN
A tagged VLAN uses an explicit tag (VLAN ID) in the MAC header to identify the VLAN membership of a
frame across bridges - they are not confined to the switch on which they were created. The VLANs can
be created statically by hand or dynamically through GVRP. The VLAN ID associates a frame with a
specific VLAN and provides the information that switches need to process the frame across the network.
A tagged frame is four bytes longer than an untagged frame and contains two bytes of TPID (Tag
Protocol Identifier), residing within the type/length field of the Ethernet frame) and two bytes of TCI (Tag
Control Information), starts after the source address field of the Ethernet frame).
The CFI (Canonical Format Indicator) is a single-bit flag, always set to zero for Ethernet switches. If a
frame received at an Ethernet port has a CFI set to 1, then that frame should not be forwarded as it is to
an untagged port. The remaining twelve bits define the VLAN ID, giving a possible maximum number of
4,096 VLANs. Note that user priority and VLAN ID are independent of each other. A frame with VID
(VLAN Identifier) of null (0) is called a priority frame, meaning that only the priority level is significant and
the default VID of the ingress port is given as the VID of the frame. Of the 4096 possible VIDs, a VID of 0 is
used to identify priority frames and value 4095 (FFF) is reserved, so the maximum possible VLAN
configurations are 4,094.
TPID
2 Bytes
User Priority
3 Bits
CFI
1 Bit
VLAN ID
12 Bits
Multicast
IP packets are transmitted in either one of two ways - Unicast (1 sender - 1 recipient) or Broadcast (1
sender - everybody on the network). Multicast delivers IP packets to a group of hosts on the network not everybody and not just 1.
Internet Group Multicast Protocol (IGMP) is a network-layer protocol used to establish membership in a
Multicast group - it is not used to carry user data. IGMP version 2 (RFC 2236) is an improvement over
version 1 (RFC 1112) but IGMP version 1 is still in wide use. If you would like to read more detailed
information about interoperability between IGMP version 2 and version 1, please see sections 4 and 5 of
RFC 2236. The class D IP address is used to identify host groups and can be in the range 224.0.0.0 to
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Chapter 6 Broadband
239.255.255.255. The address 224.0.0.0 is not assigned to any group and is used by IP multicast
computers. The address 224.0.0.1 is used for query messages and is assigned to the permanent group of
all IP hosts (including gateways). All hosts must join the 224.0.0.1 group in order to participate in IGMP.
The address 224.0.0.2 is assigned to the multicast routers group.
At start up, the VMG queries all directly connected networks to gather group membership. After that,
the VMG periodically updates this information.
DNS Server Address Assignment
Use Domain Name System (DNS) to map a domain name to its corresponding IP address and vice versa,
for instance, the IP address of www.zyxel.com is 204.217.0.2. The DNS server is extremely important
because without it, you must know the IP address of a computer before you can access it.
The VMG can get the DNS server addresses in the following ways.
1The ISP tells you the DNS server addresses, usually in the form of an information sheet, when you sign up.
If your ISP gives you DNS server addresses, manually enter them in the DNS server fields.
2If your ISP dynamically assigns the DNS server IP addresses (along with the VMG’s WAN IP address), set
the DNS server fields to get the DNS server address from the ISP.
IPv6 Addressing
The 128-bit IPv6 address is written as eight 16-bit hexadecimal blocks separated by colons (:). This is an
example IPv6 address 2001:0db8:1a2b:0015:0000:0000:1a2f:0000.
IPv6 addresses can be abbreviated in two ways:
• Leading zeros in a block can be omitted. So 2001:0db8:1a2b:0015:0000:0000:1a2f:0000 can be
written as 2001:db8:1a2b:15:0:0:1a2f:0.
• Any number of consecutive blocks of zeros can be replaced by a double colon. A double colon can
only appear once in an IPv6 address. So 2001:0db8:0000:0000:1a2f:0000:0000:0015 can be
written as 2001:0db8::1a2f:0000:0000:0015, 2001:0db8:0000:0000:1a2f::0015, 2001:db8::1a2f:0:0:15 or 2001:db8:0:0:1a2f::15.
IPv6 Prefix and Prefix Length
Similar to an IPv4 subnet mask, IPv6 uses an address prefix to represent the network address. An IPv6
prefix length specifies how many most significant bits (start from the left) in the address compose the
network address. The prefix length is written as “/x” where x is a number. For example,
2001:db8:1a2b:15::1a2f:0/32
means that the first 32 bits (2001:db8) is the subnet prefix.
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7.1 Overview
This chapter describes the VMG’s Network Setting > Wireless screens. Use these screens to set up your
VMG’s wireless connection.
7.1.1 What You Can Do in this Chapter
This section describes the VMG’s Wireless screens. Use these screens to set up your VMG’s wireless
connection.
• Use the General screen to enable the Wireless LAN, enter the SSID and select the wireless security
mode (Section 7.2 on page 94).
• Use the Guest/More AP screen to set up multiple wireless networks on your VMG (Section 7.3 on page
98).
• Use the MAC Authentication screen to allow or deny wireless clients based on their MAC addresses
from connecting to the VMG (Section 7.4 on page 101).
• Use the WPS screen to enable or disable WPS, view or generate a security PIN (Personal Identification
Number) (Section 7.5 on page 103).
• Use the WMM screen to enable Wi-Fi MultiMedia (WMM) to ensure quality of service in wireless
networks for multimedia applications (Section 7.6 on page 104).
• Use the Others screen to configure wireless advanced features, such as the RTS/CTS Threshold
(Section 7.7 on page 105).
• Use the Channel Status screen to scan wireless LAN channel noises and view the results (Section 7.8 on
page 107).
CHAPTER 7
Wireless
7.1.2 What You Need to Know
Wireless Basics
“Wireless” is essentially radio communication. In the same way that walkie-talkie radios send and
receive information over the airwowaves, wireless networking devices exchange information with one
another. A wireless networking device is just like a radio that lets your computer exchange information
with radios attached to other computers. Like walkie-talkies, most wireless networking devices operate
at radio frequency bands that are open to the public and do not require a license to use. However,
wireless networking is different from that of most traditional radio communications in that there a
number of wireless networking standards available with different methods of data encryption.
Finding Out More
See Section 7.9 on page 107 for advanced technical information on wireless networks.
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7.2 The General Screen
Use this screen to enable the Wireless LAN, enter the SSID and select the wireless security mode.
Note: If you are configuring the VMG from a computer connected to the wireless LAN and
you change the VMG’s SSID, channel or security settings, you will lose your wireless
connection when you press Apply to confirm. You must then change the wireless
settings of your computer to match the VMG’s new settings.
Click NetworkSetting > Wireless to open the General screen.
Figure 29 Network Setting > Wireless > General
Chapter 7 Wireless
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Chapter 7 Wireless
The following table describes the general wireless LAN labels in this screen.
Table 16 Network Setting > Wireless > General
LABELDESCRIPTION
Wireless Network Setup
BandThis shows the wireless band which this radio profile is using. 2.4GHz is the frequency used by IEEE
WirelessYou can Enable or Disable the wireless LAN in this field.
Channel Use Auto to have the VMG automatically determine a channel to use.
BandwidthSelect whether the VMG uses a wireless channel width of 20MHz, 40MHz or 80MHz.
Control
Sideband
Wireless Network Settings
Wireless
Network Name
802.11b/g/n wireless clients while 5GHz is used by IEEE 802.11a/ac wireless clients.
A standard 20MHz channel offers transfer speeds of up to 150Mbps whereas a 40MHz channel
uses two standard channels and offers speeds of up to 300 Mbps.
40MHz (channel bonding or dual channel) bonds two adjacent radio channels to increase
throughput. The wireless clients must also support 40 MHz. It is often better to use the 20 MHz
setting in a location where the environment hinders the wireless signal.
An 80MHz channel groups adjacent 40MHz channels into pairs to increase bandwidth even
higher.
Select 20MHz if you want to lessen radio interference with other wireless devices in your
neighborhood or the wireless clients do not support channel bonding.
This is available for some regions when you select a specific channel and set the Bandwidth field
to 40MHz. Set whether the control channel (set in the Channel field) should be in the Lower or
Upper range of channel bands.
The SSID (Service Set IDentity) identifies the service set with which a wireless device is associated.
Wireless devices associating to the access point (AP) must have the same SSID.
Enter a descriptive name (up to 32 English keyboard characters) for the wireless LAN.
Max ClientsSpecify the maximum number of clients that can connect to this network at the same time.
Hide SSIDSelect this check box to hide the SSID in the outgoing beacon frame so a station cannot obtain
Multicast
Forwarding
Max. Upstream
Bandwidth
Max.
Downstream
Bandwidth
BSSIDThis shows the MAC address of the wireless interface on the VMG when wireless LAN is enabled.
Security Level
Security ModeSelect Basic (WEP, 802.1X) or More Secure (WPA(2)-PSK) to add security on this wireless network.
ApplyClick Apply to save your changes.
CancelClick Cancel to restore your previously saved settings.
the SSID through scanning using a site survey tool.
Select this check box to allow the VMG to convert wireless multicast traffic into wireless unicast
traffic.
Specify the maximum rate for upstream wireless traffic to the WAN from this WLAN in kilobits per
second (Kbps).
Specify the maximum rate for downstream wireless traffic to this WLAN from the WAN in kilobits
per second (Kbps).
The wireless clients which want to associate to this network must have same wireless security
settings as the VMG. When you select to use a security, additional options appears in this screen.
Or you can select No Security to allow any client to associate this network without any data
encryption or authentication.
See the following sections for more details about this field.
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7.2.1 No Security
Select No Security to allow wireless stations to communicate with the access points without any data
encryption or authentication.
Note: If you do not enable any wireless security on your VMG, your network is accessible to
any wireless networking device that is within range.
Figure 30 Wireless > General: No Security
The following table describes the labels in this screen.
Table 17 Wireless > General: No Security
LABELDESCRIPTION
Security LevelChoose No Security to allow all wireless connections without data encryption or authentication.
Chapter 7 Wireless
7.2.2 Basic (WEP Encryption)
WEP encryption scrambles the data transmitted between the wireless stations and the access points
(AP) to keep network communications private. Both the wireless stations and the access points must use
the same WEP key.
Note: WEP is extremely insecure. Its encryption can be broken by an attacker, using widely-
available software. It is strongly recommended that you use a more effective security
mechanism. Use the strongest security mechanism that all the wireless devices in your
network support. For example, use WPA-PSK or WPA2-PSK if all your wireless devices
support it, or use WPA or WPA2 if your wireless devices support it and you have a RADIUS
server. If your wireless devices support nothing stronger than WEP, use the highest
encryption level available.
Your VMG allows you to configure up to four 64-bit or 128-bit WEP keys but only one key can be enabled
at any one time.
In order to configure and enable WEP encryption, click Network Setting > Wireless to display the General
screen, then select Basic as the security level.
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Chapter 7 Wireless
Figure 31 Wireless > General: Basic (WEP)
The following table describes the labels in this screen.
Table 18 Wireless > General: Basic (WEP)
LABELDESCRIPTION
Security LevelSelect Basic to enable WEP data encryption.
Generate
password
automatically
Password 1~4The password (WEP keys) are used to encrypt data. Both the VMG and the wireless stations must
more.../lessClick more... to show more fields in this section. Click less to hide them.
WEP EncryptionSelect 64-bits or 128-bits.
Select this option to have the VMG automatically generate a password. The password field will
not be configurable when you select this option.
use the same password (WEP key) for data transmission.
If you chose 64-bit WEP, then enter any 5 ASCII characters or 10 hexadecimal characters ("0-9",
"A-F").
If you chose 128-bit WEP, then enter 13 ASCII characters or 26 hexadecimal characters ("0-9", "A-
F").
You must configure at least one password, only one password can be activated at any one
time.
This dictates the length of the security key that the network is going to use.
7.2.3 More Secure (WPA(2)-PSK)
The WPA-PSK security mode provides both improved data encryption and user authentication over
WEP. Using a Pre-Shared Key (PSK), both the VMG and the connecting client share a common password
in order to validate the connection. This type of encryption, while robust, is not as strong as WPA, WPA2
or even WPA2-PSK. The WPA2-PSK security mode is a newer, more robust version of the WPA encryption
standard. It offers slightly better security, although the use of PSK makes it less robust than it could be.
Click Network Setting > Wireless to display the General screen. Select More Secure as the security level.
Then select WPA-PSK or WPA2-PSK from the Security Mode list.
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Chapter 7 Wireless
Figure 32 Wireless > General: More Secure: WPA(2)-PSK
The following table describes the labels in this screen.
Table 19 Wireless > General: More Secure: WPA(2)-PSK
LABELDESCRIPTION
Security LevelSelect More Secure to enable WPA(2)-PSK data encryption.
Security ModeSelect WPA-PSK or WPA2-PSK from the drop-down list box.
Generate
password
automatically
Password The encryption mechanisms used for WPA(2) and WPA(2)-PSK are the same. The only difference
more.../lessClick more... to show more fields in this section. Click less to hide them.
EncryptionSelect the encryption type (TKIP, AES or TKIP+AES) for data encryption.
Select this option to have the VMG automatically generate a password. The password field will
not be configurable when you select this option.
between the two is that WPA(2)-PSK uses a simple common password, instead of user-specific
credentials.
If you did not select Generate password automatically, you can manually type a pre-shared key
from 8 to 64 case-sensitive keyboard characters.
Select TKIP if your wireless clients can all use TKIP.
Select AES if your wireless clients can all use AES.
Select TKIP+AES to allow the wireless clients to use either TKIP or AES.
Group Key
Update Timer
The Group Key Update Timer is the rate at which the RADIUS server sends a new group key out to
all clients.
7.3 The Guest/More AP Screen
This screen allows you to enable and configure multiple Basic Service Sets (BSSs) on the VMG.
Click Network Setting > Wireless > Guest/More AP. The following screen displays.
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Chapter 7 Wireless
The following table introduces the supported wireless networks..
Table 20 Supported Wireless Networks
WIRELESS
NETWORKS
Main/1Network Setting > Wireless >
Guest/3Network Setting > Wireless >
WHERE TO CONFIGURE
General screen
Guest/More AP screen
Figure 33 Network Setting > Wireless > Guest/More AP
The following table describes the labels in this screen.
Table 21 Network Setting > Wireless > Guest/More AP
LABELDESCRIPTION
#This is the index number of the entry.
StatusThis field indicates whether this SSID is active. A yellow bulb signifies that this SSID is active. A gray
SSIDAn SSID profile is the set of parameters relating to one of the VMG’s BSSs. The SSID (Service Set
SecurityThis field indicates the security mode of the SSID profile.
Guest WLANThis displays if the guest WLAN function has been enabled for this WLAN.
Modify Click the Edit icon to configure the SSID profile.
bulb signifies that this SSID is not active.
IDentifier) identifies the Service Set with which a wireless device is associated.
This field displays the name of the wireless profile on the network. When a wireless client scans for
an AP to associate with, this is the name that is broadcast and seen in the wireless client utility.
If Home Guest displays, clients can connect to each other directly.
If External Guest displays, clients are blocked from connecting to each other directly.
N/A displays if guest WLAN is disabled.
7.3.1 Edit Guest/More AP
Use this screen to edit an SSID profile. Click the Edit icon next to an SSID in the Guest/More AP screen. The
following screen displays.
Wireless Network Setup
WirelessYou can Enable or Disable the wireless LAN in this field.
Wireless Network Settings
Wireless
Network Name
Hide SSIDSelect this check box to hide the SSID in the outgoing beacon frame so a station cannot obtain
Guest WLANSelect this to create Guest WLANs for home and external clients. Select the WLAN type in the
Access Scenario If you select Home Guest, clients can connect to each other directly.
Max. Upstream
Bandwidth
The SSID (Service Set IDentity) identifies the service set with which a wireless device is associated.
Wireless devices associating to the access point (AP) must have the same SSID.
Enter a descriptive name (up to 32 English keyboard characters) for the wireless LAN.
the SSID through scanning using a site survey tool.
Access Scenario field.
If you select External Guest, clients are blocked from connecting to each other directly.
Specify the maximum rate for upstream wireless traffic to the WAN from this WLAN in kilobits per
second (Kbps).
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