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WBMR-G54 Wireless ADSL Router User Guide
1
Introduction
This section provides a brief description of the Router, its associated technologies, and a list of Router features.
Router Description and Operation
The WBMR-G54 Wireless ADSL Router is designed to provide connectivity for your private Ethernet LAN, and
802.11g/802.11b wireless LAN to the Internet via an ADSL connection.
The Router is easy to install and use. Standard Ethernet ports are used to connect to computer or other Ethernet devices.
The 802.11g wireless interface provides connectivity to 802.11g or 802.11b wireless devices.
802.11g Wireless
The embedded 802.11g wireless access point provides Internet access and connectivity to the Ethernet for 802.11g and
802.11b wireless workstations. IEEE 802.11g is fully compatible with IEEE 802.11b wireless devices. The 802.11g
standard supports data transfer rates of up to 54 Mbps. The wireless Router supports 64-bit and 128-bit WEP
encryption.
ADSL
Asymmetric Digital Subscriber Line (ADSL) is a broadband network technology that utilizes standard twisted-pair
copper wire telephone lines to enable broadband high-speed digital data transmission and bandwidth hungry
applications for business and residential customers.
ADSL routers and modems provide faster downloads and more reliable connectivity to the user without loss of quality
or disruption of voice/fax telephone capabilities.
ADSL service operates at speeds of up to 8 Mbps downstream and up to 640 Kbps upstream. A secure dedicated point-
to-point connection is established between the user and the central office of the service provider.
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WBMR-G54 Wireless ADSL Router User Guide
Router Features
The WBMR-G54 ADSL Router utilizes the latest ADSL enhancements to provide a reliable Internet portal suitable for
most small to medium sized offices. WBMR-G54 advantages include:
•
PPP (Point-to-Point Protocol) Security –
The WBMR-G54 ADSL Router supports PAP (Password
Authentication Protocol) and CHAP (Challenge Handshake Authentication Protocol) for PPP connections.
•
DHCP Support
–
Dynamic Host Configuration Protocol automatically and dynamically assigns all LAN IP
settings to each host on your network. This eliminates the need to reconfigure every host whenever changes in
network topology occur.
•
Network Address Translation (NAT) –
For small office environments, the WBMR-G54 allows multiple users on
the LAN to access the Internet concurrently through a single Internet account. This provides Internet access to
everyone in the office for the price of a single user.
NAT improves network security in effect by hiding the private network behind one global and visible IP address.
NAT address mapping can also be used to link two IP domains via a LAN-to-LAN connection.
•
TCP/IP (Transfer Control Protocol/Internet Protocol) –
The WBMR-G54 supports TCP/IP protocol, the
language used for the Internet. It is compatible with access servers manufactured by major vendors.
•
RIP-1/RIP-2 –
The WBMR-G54 supports both RIP-1 and RIP-2 exchanges with other routers. Using both versions
lets the Router to communicate with all RIP enabled devices.
•
Static Routing –
This allows you to select a data path to a particular network destination that will remain in the
routing table and never “age out”. If you wish to define a specific route that will always be used for data traffic
from your LAN to a specific destination within your LAN (for example to another router or a server) or outside
your network (to an ISP defined default gateway for instance).
•
Default Routing –
This allows you to choose a default path for incoming data packets for which the destination
address is unknown. This is particularly useful when/if the Router functions as the sole connection to the Internet.
•
ATM (Asynchronous Transfer Mode) –
The WBMR-G54 supports Bridged Ethernet over ATM
(RFC1483), IP
over ATM (RFC1577) and PPP over ATM
(RFC 2364)
.
•
Precise ATM Traffic Shaping –
Traffic shaping is a method of controlling the flow rate of ATM data cells. This
function helps to establish the Quality of Service for ATM data transfer.
•
High Performance –
Very high rates of data transfer are possible with the Router. Up to 8 Mbps downstream bit
rate using the G.dmt standard.
•
Full Network Management –
The WBMR-G54 incorporates SNMP (Simple Network Management Protocol)
support for web-based management and text-based network management via an RS-232 or Telnet connection.
•
Telnet Connection –
The Telnet enables a network manager to access the Router’s management software
remotely.
•
Easy Installation
–
The WBMR-G54 uses a web-based graphical user interface program for convenient
management access and easy set up. Any common web browser software can be used to manage the Router.
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WBMR-G54 Wireless ADSL Router User Guide
Standards Compatibility and Compliance
The WBMR-G54 complies with or is compatible with the following standards as recognized by their respective
agencies.
•
ITU G.992.1 (G.DMT) compliant
•
ITU G.992.2
(G.lite “Splitterless ADSL”) compliant
•
ITU-T Rec. I.361 compliant
•
RFC 791 Internet Protocol compliant
•
RFC 792 UDP compliant
•
RFC 826 Address Resolution Protocol compliant (ARP) compliant
•
RFC 1058 Routing Information Protocol (RIP) compliant
•
RFC 1334 PPP Authentication Protocol compliant
•
RFC 1389 Routing Information Protocol 2 (RIP2) compliant
•
RFC 1483 IP over AAL5/ Bridged Ethernet over AAL5 compliant
•
RFC 1661 Point to Point Protocol (PPP) compliant
•
RFC 1877 Automatic IP assignment compliant
•
RFC 1994 Challenge Handshake Authentication Protocol compliant
•
Supports DHCP functions including: automatic assignment of IP address, use of subnet mask and default
gateway and provision of DNS server address for all hosts
•
RFC 2364 PPP over ATM compliant (PPPoA) compliant
•
RFC 2516 PPP over Ethernet compliant (PPPoE) compliant
•
RFC 2684 Bridged/Routed Ethernet over ATM compliant
•
IEEE 802.3 compliant
•
IEEE 802.3u compliant
•
IEEE 802.1d compliant
•
IEEE 802.3x compliant
•
Embedded web server support
•
Supports Dynamic Learning
•
Supports Static Routing
•
Supports NAPT for up to 4096 connections
•
Supports DHCP for up to 253 hot connections
•
Supports IGMP
•
Supports DVMRP
•
Supports ATM Forum UNI 3.1/4.0
•
Supports ATM VCC (Virtual Channel Circuit) for up to eight sessions
•
Supports Telnet and TFTP
•
Supports back pressure for half-duplex
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WBMR-G54 Wireless ADSL Router User Guide
Front Panel Display
Place the Router in a location that permits an easy view of the LED indicators on the front panel.
The LED indicators on the front panel include
Power
,
Status
,
ADSL
,
WLAN
, and
LAN
. The
ADSL
,
WLAN
, and
LAN
indicators monitor link status and activity (
Link/Act
).
Power
Steady green light indicates the unit is powered on. When the device is
powered off this remains dark.
Status
Lights steady green during power on self-test (POST). Once the connection
status has been settled, the light will blink green. If the indicator lights
steady green after the POST, the system has failed and the device should be
rebooted.
ADSL (Link/Act)
Steady green light indicates a valid ADSL connection. This will light after the
ADSL negotiation process has been settled. A blinking green light indicates
activity on the WAN (ADSL) interface.
WLAN (Link/Act)
Steady green light indicates a wireless connection. A blinking green light
indicates activity on the WLAN interface
LAN (Link/Act)
A solid green light indicates a valid link on startup. These lights blink when
there is activity currently passing through the Ethernet port.
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WBMR-G54 Wireless ADSL Router User Guide
Rear Panel Connections
All cable connections to the Router are made at the rear panel. Connect the power adapter here to power on the Router.
Use the Reset button to restore the settings to the factory default values in the next chapter for instructions on using the
reset button).
Connect network cables:
1.
Insert the ADSL (telephone) cable included with the Router into the ADSL port and then connect the cable to
your telephone line.
2.
Insert one end of the Ethernet cable into one of the LAN ports on the back panel of the Router and the other
end of the cable to an Ethernet Adapter or available Ethernet port on your computer.
Note
To manually
reboot the
Router,
disconnect and
then reconnect
the power.
WARNING!
Using a power supply with a
different voltage rating will
damage the device and void
the warranty of this product.
Setting Up a Wireless Network
In order to get the best performance from the wireless component of the Router, you should have some basic
understanding of how wireless networks operate. Wireless networking is a relatively new technology and there are more
factors to consider when setting up or designing a wireless network than designing a wired network. If you are setting
up a wireless network, especially if you are using multiple access points and/or covering a large area, good planning
from the outset can ensure the best possible reliability, performance, coverage and effective security.
Radio
Wireless local network (as called WI-FI) devices such as notebook computers and wireless access points use
electromagnetic waves within a broad, unlicensed range of the radio spectrum (between 2.4GHz and 2.5GHz) to
transmit and receive radio signals. A wireless access point (AP) becomes a base station for the wireless nodes (notebook
computer for example) in its broadcast range. Often a wireless access point such as the AP embedded in the WBMR-
G54, will also provide a connection to a wired network - usually Ethernet - and ultimately an Internet connection. The
IEEE 802.11 standard precisely defines the encoding techniques used to digitally used for data transmission. The
WBMR-G54 can be used by IEEE 802.11g and 802.11b devices. These two standards are compatible but use different
algorithms for data transmission.
802.11g uses a method called Orthogonal Frequency Division Multiplexing (OFDM) for transmitting data at higher data
rates. OFDM is a more efficient encoding method than Direct Sequence Spread Spectrum (DSSS) transmission, the
method used by 802.11b devices. However, in order to support different data transmission rates while also be
compatible with 802.11b, 802.11g uses a combination of OFDM and DSSS when 802.11b devices are present.
Range
An access point will send and receive signals within a limited range. Also, be aware that the radio signals are emitted in
all directions giving the access point a spherical operating range. The physical environment in which the AP is
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