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Reference Guide for the Model RP114 Web Safe Router
2
Glossary
Internet Protocol
The main internetworking protocol used in the Internet. Used in conjunction
with the Transfer Control Protocol (TCP) to form TCP/IP.
LAN
See
local area network.
local area network
A communications network serving users within a limited geographical area,
such as one floor of a building, controlled by a network operating system and
using a transport protocol.
MAC address
Media Access Control address. A unique 48-bit hardware address assigned to
every Ethernet node. Usually written in the form 01:23:45:67:89:ab.
MSB
See
Most Significant Bit or Most Significant Byte.
MRU
See
Maximum Receive Unit.
Maximum Receive
Unit
The size in bytes of the largest packet that can be sent or received.
Most Significant Bit or
Most Significant Byte
The portion of a number, address, or field that is farthest left when written as a
single number in conventional hexadecimal ordinary notation. The part of the
number having the most value.
NAT
See
Network Address Translation.
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.
PPP
See
Point-to-Point Protocol.
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.
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.