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a. If the
Result
section of the table reports information like “1st: 64 bytes from IP_ADDRESS” then
the WDS bridge is effectively working.
b.
If the
Result
section of the table reports “Destination Host Unreachable”, then an error has
occurred during the setup.
WDS is a complicated bridging system with a lot of variables. If there are still problems with WDS
configuration on the network, please contact Buffalo Tech Support (see pages 82 and 83).
Troubleshooting
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10BaseT:
802.3 based Ethernet network
that uses UTP (Unshielded twisted pair)
cable and a star topology.
10 Mbps data
tansmission speed.
100BaseT:
802.3 based Ethernet network
that uses UTP (Unshielded twisted pair)
cable and a star topology.
100 Mbps data
tansmission speed.
1000BaseT:
802.3 based Ethernet
network that uses UTP (Unshielded twisted
pair) cable and a star topology.
1000 Mbps
data tansmission speed.
802.1x:
The standard for wireless LAN
authentication used between an AP and a
client.
802.1x with EAP will initiate key
handling.
Access Point:
A hardware device that acts
as a communication hub for
Clients
(users
of wireless devices) to connect to a wired
LAN.
Ad-Hoc Network:
A network based on
peer-to-peer communication rather than a
router, switch, or hub.
Bandwidth:
The transmission capacity of
a computer or a communication channel,
usually stated in Megabits per second
(Mbps).
Bridge:
A device which forwards traffic
between network segments with a common
network layer address, based on data link
layer information.
Client:
A PC, workstation, or other device
that connects to a network wirelessly
through an
Access Point
.
Cross-Over Cable:
A UTP cable that has its
transmit and receive pair crossed to allow
communications between two devices.
Default Gateway:
The IP Address of either
the nearest router or server for the LAN.
Glossary
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73
Destination Address:
The address portion
of a packet that identifies the intended
recipient station.
DHCP (Dynamic Host Configuration
Protocol):
Based on BOOTP, it uses a pool
of IP addresses, which it assigns to each
device connected to it, and retrieves the
address when the device becomes dormant
for a period of time.
DNS (Domain Name System):
System
used to map readable machine names into
IP addresses.
Driver:
Software that interfaces a
computer with a specific hardware device.
Dynamic IP Address:
An IP address that
is automatically assigned to a client station
in a TCP/IP network, typically by a DHCP
server.
Ethernet:
The most widely used
architecture for Local Area Networks
(LANs). It is a shared-media network
architecture. The IEEE 802.3 standard
details its functionality.
Ethernet cable:
A wire similar to telephone
cable that carries signals between Ethernet
devices.
It is designed to connect a single
device’s NIC to a router, switch, or hub.
See also
Crossover cable
.
File and Print Sharing:
A Microsoft
application that allows computers on a
network to share files and printers.
Firmware:
Computer programming
instructions that are stored in a read-
only memory unit rather than being
implemented through software.
Frame:
A fixed block of data, transmitted
as a single entity.
Also referred to as a
packet.
Glossary
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74
Full-Duplex:
To transmit on the same
channel in both directions simultaneously.
Half-duplex:
To transmit on the same
channel in both directions, one direction at
a time.
Hub:
A device which allows connection
of computers and other devices to form a
LAN.
IEEE (Institute of Electrical and
Electronics Engineers):
The professional
organization which promotes development
of electronics technology.
IP (Internet Protocol) Address:
A unique
32-binary-digit number that identifies each
sender or receiver of information sent in
packets.
Infrastructure:
A wireless network or
other small network in which the wireless
network devices are made a part of the
network through the Access Point.
ISP (Internet Service Provider):
A
company that provides access to the
Internet and other related services.
IV (Initialization Vector):
The header
section of an encrypted message packet.
LAN (Local Area Network):
A group
of computers and peripheral devices
connected to share resources.
LED (Light Emitting Diode):
The lights
on a hardware device representing the
activity through the ports.
MAC (Medium Access Control) Address:
The unique number that distinguishes
every network interface card.
Mbps (Mega Bits Per Second):
A
measurement of millions of bits per
second.
MDI/X (Media Dependent Interface/
Cross-over):
Port on a network hub or
switch that crosses the incoming transmit
lines with the outgoing receive lines.
Glossary
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75
PCMCIA (Personal Computer Memory Card
International Association) Card:
Removable
module that adds features to a portable
computer.
Peer-to-peer:
This simple network is formed by
connecting computers directly, without use of
routers or hubs.
A
crossover cable
is plugged
into an Ethernet port in each computer,
connecting them directly.
Ping (Packet Internet Groper):
An Internet
utility used to determine whether a particular
IP address is accessable.
Plug and Play:
Hardware that, once physically
installed, finishes its installation automatically
and may immediately be used, as opposed
to hardware that requires further manual
configuration.
PoE (Power over Ethernet):
A mechanism
to send DC power to a device using a CAT5
Ethernet cable.
MHz (MegaHertz):
One million cycles per
second.
NAT (Network Address Translation):
An
internet standard that enables a LAN to
use one set of IP addresses for internal
traffic and a second set for external traffic.
NIC (Network Interface Card):
An
expansion card connected to a computer
so the computer can be connected to a
network.
Packet:
A block of data that is transferred
as a single unit, also called a frame or a
block.
Packet Filtering:
Discarding unwanted
network traffic based on its originating
address or its type.
PCI (Peripheral Component
Interconnect):
A bus that is connected
directly to the CPU.
Glossary

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