User guide

CHAPTER 11: Glossary
148 WatchGuard Firebox System 6.0
IPSec provides several encryption and authentication options to
maximize the security of the transmission over a public medium
such as the Internet.
IP spoofing
The act of inserting a false sender IP address into an Internet
transmission to gain unauthorized access to a computer system.
ISA (Industry Standard Architecture)
A unique network interface card on the motherboard of a
computer.
ISAKMP (Internet Security Association Key Management Protocol)
Defines the procedures for authenticating a communicating peer,
creation and management of security associations, key generation
techniques, and threat mitigation; for example, denial of service
and replay attacks.
ISO (International Organization for Standardization)
An organization responsible for a wide range of standards, like
the OSI model and international relationship with ANSI on X.509.
ISP (Internet service provider)
A business that sells access to the Internet. A government
organization or an educational institution may be the ISP for some
organizations.
ITU-T (International Telecommunication Union-
Telecommunication)
Formerly the CCITT (Consultative Committee for International
Telegraph and Telephone), a worldwide telecommunications
technology standards organization.
IV
See initialization vector.
Java applet
A program written in the Java programming language that can be
included on an HTML page, much in the same way an image is
included. When someone uses a Java technology—enabled
browser to view a page that contains an applet, the applet’s code
is transferred to that user’s system and carried out by the
browser's Java virtual machine (JVM).