Product specifications

Revision 1.4

Port A software access point to a host. Hosts have multiple ports and

daemons typically listening to a specific port or ports for connection

from clients.

Port Scanning A technique of attempting to find listening TCP or UDP

ports on an IP device and abstracting from those ports as much infor-

mation as possible about the device and using the information for intru-

sion at a later date.

Protocol Stack A set of multiple, interrelated (stacked) software mod-

ules that forms a set of communication conversions. For example,

TCP/IP is a protocol consisting of many separate protocols including

TCP, UDP, IP, ICMP and others.

Proxy Server A proxy is an application running on a gateway that

relays packets between a trusted client and an untrusted host. It can pro-

vide additional features such as caching, Internet security, and IP

address consolidation.

Plug and Play A device that installs without the need for fiddling with

dip-switches, settings or interrupts and whereby the device is capable of

identifying itself and the resources it requires.

Physical Disconnect A type of disconnection that takes place at the

physical network layer effectively disabling all communication mes-

sages in both directions. Functionally, the circuit is electrically opened

and cannot establish a communication path due to no connection.

Remote LAN Access A data communication such as a corporate or

campus environment, in which the computer networks can be accessed

remotely via public telecommunication networks.

RJ-45 Standard eight-wire connectors used in IEEE 802.3 10Base-T

and 100Base-T networks.

Router A device that performs routing and appropriate paths for data

packets across networks as it traverses an internetwork or WAN.

Glossary Of Terms

Additional

Information

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