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GLOSSARY 119
Ethernet A LAN specification developed jointly by Xerox, Intel and Digital
Equipment Corporation. Ethernet networks use CSMA/CD to transmit
packets at a rate of 10 Mbps over a variety of cables.
Ethernet Address See MAC address.
Fast Ethernet An Ethernet system that is designed to operate at 100 Mbps.
Firewall Electronic protection that prevents anyone outside of your network from
seeing your files or damaging your computers.
Full Duplex A system that allows packets to be transmitted and received at the same
time and, in effect, doubles the potential throughput of a link.
Half Duplex A system that allows packets to transmitted and received, but not at the
same time. Contrast with full duplex.
Hub A device that regenerates LAN traffic so that the transmission distance of
that signal can be extended. Hubs are similar to repeaters, in that they
connect LANs of the same type; however they connect more LANs than a
repeater and are generally more sophisticated.
IEEE Institute of Electrical and Electronics Engineers. This American
organization was founded in 1963 and sets standards for computers and
communications.
IETF Internet Engineering Task Force. An organization responsible for
providing engineering solutions for TCP/IP networks. In the network
management area, this group is responsible for the development of the
SNMP protocol.
Infrastructure mode Infrastructure mode is the wireless configuration supported by the Router.
You will need to ensure all of your clients are set up to use infrastructure
mode in order for them to communicate with the Access Point built into
your Router. (see also Ad Hoc mode)
IP Internet Protocol. IP is a layer 3 network protocol that is the standard for
sending data through a network. IP is part of the TCP/IP set of protocols
that describe the routing of packets to addressed devices. An IP address