Reference Guide for the Model RP114 Web Safe Router
2Glossary
InternetProtocol Themain internetworking protocol used in the Internet. Used in conjunction
withthe Transfer Control Protocol (TCP) to form TCP/IP.
LAN See local area network.
localarea network A communicationsnetwork serving users within a limited geographical area,
suchas onefloor of a building, controlled by a network operating system and
using a transport protocol.
MACaddress MediaAccess Control address. A unique 48-bit hardware address assigned to
every Ethernet node.Us uallywr itten inthe form 01:23:45:6 7:89:ab.
MSB See Most Significant Bitor Most SignificantB yte.
MRU See Maximum Receive Unit.
MaximumReceive
Unit Thesize in bytes of the largest packet that can be sent or received.
MostSignificant Bit or
MostSignificant Byte Theportion of a number, address, or field that is farthest left when written as a
singlenumber in conventional hexadecimal ordinary notation. The part of the
number having the most value.
NAT SeeNetwor k Address Translation.
netmask Anumber that explains which part of an IP address comprises the network
addressand which part is the host address on that network. It can be
expressedin 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
255.255.255.192or as /28 appended to the IP address.
NetworkAddress
Translation Atechnique by which several hosts share a single IP address for access to the
Internet.
PPP See Point-to-Point Protocol.
PPPover Ethernet
(PPPoE) PPP overEthernet is a protocolfor connecting remote hosts to the Internet
overan always-on connection by simulating a dial-upconnection.
PPTP Point-to-PointTunneling Protocol. A method for establishing a virtual private
network(VPN) by embedding Microsoft’s network protocol into Internet
packets.
PSTN PublicSwitched Telephone Network.
packet Ablock of information sent over a network. A packet typically contains a
sourceand destination network address, some protocol and length
information, a block of data, and a checksum.