Linksys BEFSR81-EU User Manual page 42

HTML page or send e-mail, the Internet Protocol part of TCP/IP includes your
IP address in the message (actually, in each of the packets if more than one is
required) and sends it to the IP address that is obtained by looking up the domain
name in the Uniform Resource Locator you requested or in the e-mail address
you're sending a note to. At the other end, the recipient can see the IP address of
the Web page requestor or the e-mail sender and can respond by sending another
message using the IP address it received.
IPCONFIG - A utility that provides for querying, defining and managing IP
addresses within a network. A commonly used utility, under Windows NT and
2000, for configuring networks with static IP addresses.
IPSec (Internet Protocol Security) - IPSec is a developing standard for security
at the network or packet processing layer of network communication. A big
advantage of IPSec is that security arrangements can be handled without requir-
ing changes to individual user computers.
IRQ (Interrupt ReQuest) - A hardware interrupt on a PC. There are 16 IRQ lines
used to signal the CPU that a peripheral event has started or terminated. Except
for PCI devices, two devices cannot use the same line.
ISP - An ISP (Internet service provider) is a company that provides individuals
and companies access to the Internet and other related services such as website
building and virtual hosting.
LAN - A local area network (LAN) is a group of computers and associated
devices that share a common communications line and typically share the
resources of a single processor or server within a small geographic area (for
example, within an office building).
Latency - The time delay between when the first bit of a packet is received and
the last bit is forwarded.
MAC Address - The MAC (Media Access Control) address is a unique number
assigned by the manufacturer to any Ethernet networking device, such as a net-
work adapter, that allows the network to identify it at the hardware level.
Mbps (MegaBits Per Second) - One million bits per second; unit of measure-
ment for data transmission.
mIRC - mIRC runs under Windows and provides a graphical interface for log-
ging onto IRC servers and listing, joining, and leaving channels.
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Instant Broadband Series
®
EtherFast Cable/DSL Router with QoS and 8-Port Switch
®
Motherboard - A motherboard is the physical arrangement in a computer that
contains the computer's basic circuitry and components.
NAT - NAT (Network Address Translation) is the translation of an Internet
Protocol address (IP address) used within one network to a different IP address
known within another network. One network is designated the inside network and
the other is the outside.
NetBEUI (NetBIOS Extended User Interface) - The transport layer for
NetBIOS. NetBIOS and NetBEUI were originally part of a single protocol suite
that was later separated. NetBIOS sessions can be transported over NetBEUI,
TCP/IP, and IPX/SPX protocols.
NetBIOS - The native networking protocol in DOS and Windows networks.
Although originally combined with its transport layer protocol (NetBEUI),
NetBIOS today provides a programming interface for applications at the session
layer (layer 5). NetBIOS can ride over NetBEUI, its native transport, which is not
routable, or over TCP/IP and IPX/SPX, which are routable protocols.
NetBIOS computers are identified by a unique 15-character name, and Windows
machines (NetBIOS machines) periodically broadcast their names over the net-
work so that Network Neighborhood can catalog them. For TCP/IP networks,
NetBIOS names are turned into IP addresses via manual configuration in an
LMHOSTS file or a WINS server.
There are two NetBIOS modes. The Datagram mode is the fastest mode, but does
not guarantee delivery. It uses a self-contained packet with send and receive
name, usually limited to 512 bytes. If the recipient device is not listening for mes-
sages, the datagram is lost. The Session mode establishes a connection until bro-
ken. It guarantees delivery of messages up to 64KB long.
Network - A system that transmits any combination of voice, video, and/or data
between users.
Network Mask - Also known as the "Subnet Mask."
NIC (Network Interface Card) - A board installed in a computer system, usually
a PC, to provide network communication capabilities to and from that computer
system. Also called an adapter.
Notebook (PC) - A notebook computer is a battery-powered personal computer
generally smaller than a briefcase that can easily be transported and convenient-
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