User's Manual

Fortress ES-Series CLI Guide: Glossary
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gateway
In IT, a node on a network, usually a router, that provides a connection to another net-
work.
GPS Global Positioning System
groups
An association of network objects (users, devices, etc.) typically used to allocate shared
resources and apply access policies.
GUI
graphical user interface—a user interface in which the user manipulates various interac-
tive objects (menu items, buttons, etc.) displayed on the monitor screen.
hash function
Mathematical computation for deriving a condensed representation or
hash value , usu-
ally a fixed-size string, from a variable-size message or data file.
High-Capacity
Infrastructure Mesh Point
Name of the Fortress ES2440 model Mesh Point.
HTTP
Hypertext Transfer Protocol—used to transmit and receive all data over the World Wide
Web.
HTTPS HTTP Secure sockets—HTTP with an encryption/authentication layer.
IANA
Internet Assigned Number Authority—the organization that assigns Internet Protocol
(IP) addresses and port numbers.
ICMP
Internet Control Message Protocol —supports packets containing error, control, and
informational messages. The ping command uses ICMP to test an Internet connection.
IDS
Intrusion Detection System—monitors network activity to identify suspicious patterns
that may indicate a network or system attack and supports automated and/or manual
real-time responses.
IEEE
Institute of Electrical and Electronics Engineers—a nonprofit technical professional
association that develops, promotes, and reviews standards within the electronics and
computer science industries.
IETF Internet Engineering Task Force—the primary standards organization for the Internet.
IGMP
Internet Group Management Protocol—The portion of the IP multicast specification that
describes dynamically managing the membership of multicast groups.
Internet Protocol Suite
Also, TCP/IP—the basic, two-part communication protocol in use on the Internet (refer
to IP and TCP).
IP
Internet Protocol—defines a method for transmitting data, in packets, from one com-
puter to another over a network; one of the founding protocols in the TCP/IP suite of
networking protocols.
IPS
Intrusion Prevention System—allows network administrators to apply policies and rules
to network traffic, as it is monitored by an intrusion detection system.
IPsec
Internet Protocol security—a set of protocols developed by the IETF to support secure
exchange of packets at the IP layer, deployed widely to implement VPNs.
IPv4
Internet Protocol version 4—the first widely implemented and still the most prevalent
version of IP.
IPv6
Internet Protocol version 6—the next version of IP slated for wide implementation,
intended to overcome the limitations of, and to eventually replace, IPv4.
ISO
International Organization for Standardization, formerly the International Standards
Organization—ISO still refers to standards (ex., ISO 9000); the whole name refers to
the organization, sometimes appending the earlier initialization in parentheses.
isotropic antenna
A theoretical, idealized antenna that would transmit power uniformly in all directions;
used to measure antenna gain in dBi.
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