Zonet ZVC7610W User Manual page 37

N
NAT
Network
NWay Protocol
P
PCM
PING
PPPoE
Protocol
mobile telephones.
Network Address Translator generally applied by a router that
makes many different IP addresses on an internal network appear
to the Internet as a single address. For routing messages properly
within your network, each device requires a unique IP address.
But the addresses may not be valid outside your network. NAT
solves the problem. When devices within your network request
information from the Internet, the requests are forwarded to the
Internet under the router's IP address. NAT distributes the
responses to the proper IP addresses within your network.
A network consists of a collection of two or more devices, people,
or components that communicate with each other over physical or
virtual media. The most common types of network are:
LAN – (local area network): Computers are in close distance to
one another. They are usually in the same office space, room, or
building.
WAN – (wide area network): The computers are in different
geographic locations and are connected by telephone lines or
radio waves.
A network protocol that can automatically negotiate the highest
possible transmission speed between two devices.
PCM (Pulse Code Modulation) is a technique for converting
analog audio signals into digital form for transmission.
Packet Internet Groper, a utility used to determine whether a
specific IP address is accessible. It functions by sending a packet
to the specified address and waits for a reply. It is primarily used
to troubleshoot Internet connections.
Point-to-Point Protocol over Ethernet. PPPoE is a specification for
connecting the users on an Ethernet to the Internet through a
common broadband medium, such as DSL or cable modem. All
the users over the Ethernet share a common connection.
Communication on the network is governed by sets of rules called
protocols. Protocols provide the guidelines devices use to
communicate with each other, and thus they have different
functions. Some protocols are responsible for formatting and
presenting and presenting data that will be transferred from file
server memory to the file server's net work adapter Others are
responsible for filtering information between networks and
forwarding data to its destination. Still other protocols dictate how
data is transferred across the medium, and how servers respond
to workstation requests and vice versa. Common network
protocols responsible for the presentation and formatting of data
for a network operating system are the Internetwork Packet
Exchange (IPX) protocol or the Internet Protocol (IP). Protocols
that dictate the format of data for transferors the medium include
token-passing and Carrier Sense Multiple Access with Collision
Detection (CSMA/CD), implemented as token-ring, ARCNET,
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