ZyXEL Communications PRESTIGE 1400 User Manual page 151

NAT -Outside
NAT Server Set
NDIS
Network
NIC
Node
PAP
Phoneline networking
Port
POTS
PPP
PSTN
PTT
PVC
RFC
RIP
RS-232
Server
SMT
SNMP
Splitter
STP
Glossary
This refers to the host on the WAN.
A NAT server set is a list of inside servers (behind NAT on the LAN) that you can make visible to the outside
world.
Network Driver Interface Specification is a Windows® specification for how communication protocol programs
(such as TCP/IP) and network device drivers should communicate with each other.
Any time you connect two or more computers together so that they can share resources, you have a computer
network. Connect two or more networks together and you have an internet.
Network Interface Card. A board that provides network communication capabilities to and from a computer
system. Also called an adapter.
Any single computer connected to a network.
Password Authentication Protocol PAP is a security protocol that requires users to enter a password before
accessing a secure system. The user's name and password are sent over the wire to a server, where they are
compared with a database of user account names and passwords. This technique is vulnerable to wiretapping
(eavesdropping) because the password can be captured and used by someone to log onto the system.
Phoneline networking is a new technology that provides network connectivity over existing telephone wires
without any impact on POTS services.
An Internet port refers to a number that is part of a URL, appearing after a colon (:) right after the domain name.
Every service on an Internet server listens on a particular port number on that server. Most services have
standard port numbers, e.g. Web servers normally listen on port 80.
Plain Old Telephone Service is the analog telephone service that runs over copper twisted-pair wires and is based
on the original Bell telephone system. Twisted-pair wires connect homes and businesses to a neighborhood
central office. This is called the local loop. The central office is connected to other central offices and long-
distance facilities.
Point to Point Protocol. PPP encapsulates and transmits IP (Internet Protocol) datagrams over serial point-to-point
links. PPP works with other protocols such as IPX (Internetwork Packet Exchange). The protocol is defined in
IETF (Internet Engineering Task Force) RFC 1661 through 1663. PPP provides router-to-router, host-to-router
and host-to-host connections.
Public Switched Telephone Network was put into place many years ago as a voice telephone call-switching
system. The system transmits voice calls as analog signals across copper twisted cables from homes and
businesses to neighborhood COs (central offices); this is often called the local loop. The PSTN is a circuit-
switched system, meaning that an end-to-end private circuit is established between caller and callee.
The generic European name is usually used to refer to state-owned telephone companies.
Permanent Virtual Circuit. A PVC is a logical point-to-point circuit between customer sites. PVCs are low-delay
circuits because routing decisions do not need to be made along the way. Permanent means that the circuit is
preprogrammed by the carrier as a path through the network. It does not need to be set up or torn down for each
session.
An RFC (Request for Comments) is an Internet formal document or standard that is the result of committee
drafting and subsequent review by interested parties. Some RFCs are informational in nature. Of those that are
intended to become Internet standards, the final version of the RFC becomes the standard and no further
comments or changes are permitted. Change can occur, however, through subsequent RFCs.
Routing Information Protocol is an interior or intra-domain routing protocol that uses the distance-vector routing
algorithms. RIP is used on the Internet and is common in the NetWare environment as a method for exchanging
routing information between routers.
An EIA standard which is the most common way of linking data devices together.
A computer, or a software package that provides a specific kind of service to client software running on other
computers.
The SMT (System Management Terminal) is the interface that you use to configure your Prestige.
System Network Management Protocol is a popular management protocol defined by the Internet community for
TCP/IP networks. It is a communication protocol for collecting information from devices on the network.
A filter to separate ADSL signals from POTS signals to prevent mutual interference.
Twisted-pair cable consists of copper-core wires surrounded by an insulator. Two wires are twisted together to
form a pair and the pair form a balanced circuit. The twisting prevents interference problems. STP (shielded
twisted-pair) provides protection against external crosstalk.
Prestige 1400 WAN Router with Integrated Ethernet Switch
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