Prestige 304 Broadband Sharing Gateway with 4-Port Switch

 

 

 

 

 

 

 

 

relays the PPP frames to the PNS (PPTP Network Server). A PAC must have IP and

 

 

 

 

dial-up capability.

 

 

 

 

 

 

 

POP

 

Post Office Protocol. This is a common protocol used for sending, receiving, and

 

 

 

 

delivering mail messages.

 

 

 

 

 

 

 

Port

 

An Internet port refers to a number that is part of a URL, appearing after a colon (:),

 

 

 

 

directly following the domain name. Every service on an Internet server listens on a

 

 

 

 

particular port number on that server. Most services have standard port numbers, for

 

 

 

 

instance, Web servers normally listen on port 80.

 

 

 

 

 

 

 

Port (H/W)

 

An interface on a computer for connecting peripherals or devices to the computer. A

 

 

 

 

printer port, for example, is an interface that is designed to have a printer connected to

 

 

 

 

it. Ports can be defined by specific hardware (such as a keyboard port) or through

 

 

 

 

software.

 

 

 

 

 

 

 

POTS

 

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.

 

 

 

 

 

 

 

PPP

 

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.

 

 

 

 

 

 

 

PPPoE

 

PPPoE (Point-to-Point Protocol over Ethernet) relies on two widely accepted standards:

 

 

 

 

PPP and Ethernet. PPPoE is a specification for connecting the users on an Ethernet to

 

 

 

 

the Internet through a common broadband medium, such as a single DSL line, wireless

 

 

 

 

device or cable modem. All the users over the Ethernet share a common connection, so

 

 

 

 

the Ethernet principles supporting multiple users in a LAN combine with the principles

 

 

 

 

of PPP, which apply to serial connections. From authentication, accounting and secure

 

 

 

 

access to configuration management, PPPoE supports a broad range of existing

 

 

 

 

applications and services.

 

 

 

 

 

 

 

PPTP

 

Point-to-Point Tunneling Protocol.

 

 

Protocol

 

A "language" for communicating on a network. Protocols are sets of standards or rules

 

 

 

 

used to define, format and transmit data across a network. There are many different

 

protocols used on networks. For example, most web pages are transmitted using the HTTP protocol.

Glossary

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