Wireless Router
TwinMOS
Page 30
server separate from the internal LAN.
Firmware:
Programming inserted into programmable read-only memory, thus becoming a permanent
part of a computing device.
Fragmentation:
Refers to the breaking up of data packets during transmis-sion.
Gateway:
Gateways are computers that convert protocols enabling different networks, applications, and
operating systems to exchange information.
Half-duplex:
To transmit on the same channel in both directions, one direction at a time.
Host Name:
The name given to a computer or client station that acts as a source for information on the
network.
ISP:
An ISP is an organization providing Internet access service via modems, ISDN (Integrated Services
Digital Network), and private lines.
LAN(Local Area Network):
A group of computers and peripheral devices connected to share
resources.
MAC(Medium Access Control) Address:
A unique number that distinguishes network cards.
MTU:
MTU (Maximum Transmission/Transfer Unit) is the largest packet size that can be sent over a
network. Messages lar-ger than the MTU are divided into smaller packets.
NAT:
NAT (Network Address Translation - also known as IP mas-querading) enables an organization
to present itself to the Internet with one address. NAT converts the address of each LAN node into one
IP address for the Internet (and vice versa). NAT also provides a certain amount of security by acting as
a firewall by keeping individual IP addresses hidden from the WAN.
PPPoE:
PPPoE (Point-to-Point Protocol Over Ethernet) is used for running PPP protocol (normally
used for dial-up Internet connections) over an Ethernet.
PoE (Power over Ethernet):
A mechanism to send DC power to a device using a CAT5 Ethernet cable.
Preamble:
Preamble refers to the length of a CRC (Cyclic Redundancy Check) block that monitors
communications between roam-ing wireless enabled devices and access points.
