NETGEAR ADSL Firewall Router DG834 User Manual

Page 234

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Reference Manual for the ADSL Firewall Router DG834

4

Glossary

Netmask

A number that explains which part of an IP address comprises the network
address and which part is the host address on that network. It can be
expressed in dotted-decimal notation or as a number appended to the IP
address. For example, a 28-bit mask starting from the MSB can be shown as
255.255.255.192 or as /28 appended to the IP address.

Network Address
Translation

A technique by which several hosts share a single IP address for access to the
Internet.

packet

A block of information sent over a network. A packet typically contains a
source and destination network address, some protocol and length
information, a block of data, and a checksum.

PPP

See

Point-to-Point Protocol.

PPPoA

See

PPP over ATM

PPPoE

See

PPP over Ethernet

PPP over ATM

PPPoA. PPP over ATM is a protocol for connecting remote hosts to the
Internet over an always-on connection by simulating a dial-up connection.

PPP over Ethernet

PPPoE. PPP over Ethernet is a protocol for connecting remote hosts to the
Internet over an always-on connection by simulating a dial-up connection.

PPTP

Point-to-Point Tunneling Protocol. A method for establishing a virtual private
network (VPN) by embedding Microsoft’s network protocol into Internet
packets.

PSTN

Public Switched Telephone Network.

Point-to-Point
Protocol

PPP. A protocol allowing a computer using TCP/IP to connect directly to the
Internet.

RADIUS

Short for Remote Authentication Dial-In User Service, RADIUS is an
authentication system.
Using RADIUS, you must enter your user name and password before gaining
access to a network. This information is passed to a RADIUS server, which
checks that the information is correct, and then authorizes access. Though not
an official standard, the RADIUS specification is maintained by a working
group of the IETF.

RFC

Request For Comment. Refers to documents published by the Internet
Engineering Task Force (IETF) proposing standard protocols and procedures
for the Internet. RFCs can be found at www.ietf.org.

RIP

See

Routing Information Protocol.

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