Cisco IPS-4240-K9 - Intrusion Protection Sys 4240 Installation Manual page 175

An ITU standard that governs H.245 endpoint control.
H.245
Allows dissimilar communication devices to communicate with each other by using a standardized
H.323
communication protocol. H.323 defines a common set of CODECs, call setup and negotiating
procedures, and basic data transport methods.
Capability for data transmission in only one direction at a time between a sending station and a
half duplex
receiving station. BSC is an example of a half-duplex protocol.
Sequence of messages exchanged between two or more network devices to ensure transmission
handshake
synchronization.
Network Access Controller blocks all traffic from a given IP address.
host block
Hypertext Transfer Protocol. The stateless request/response media transfer protocol used in the IPS
HTTP
architecture for remote data exchange.
An extension to the standard HTTP protocol that provides confidentiality by encrypting the traffic from
HTTPS
the website. By default this protocol uses TCP port 443.
I
Internet Control Message Protocol. Network layer Internet protocol that reports errors and provides
ICMP
other information relevant to IP packet processing. Documented in RFC 792.
Denial of Service attack that sends a host more ICMP echo request ("ping") packets than the protocol
ICMP flood
implementation can handle.
Intrusion Detection Application Programming Interface. Provides a simple interface between IPS
IDAPI
architecture applications. IDAPI reads and writes event data and provides a mechanism for control
transactions.
Intrusion Detection Configuration. A data format standard that defines operational messages that are
IDCONF
used to configure intrusion detection and prevention systems.
Intrusion Detection Interchange and Operations Messages. A data format standard that defines the
IDIOM
event messages that are reported by intrusion detection systems and the operational messages that are
used to configure and control intrusion detection systems.
Intrusion Detection Message Exchange Format. The IETF Intrusion Detection Working Group draft
IDMEF
standard.
IPS Device Manager. A web-based application that lets you configure and manage your sensor. The
IDM
web server for IDM resides on the sensor. You can access it through Netscape or Internet Explorer web
browsers.
Intrusion Prevention System. A system that alerts the user to the presence of an intrusion on the network
IPS
through network traffic analysis techniques.
Describes the messages transferred over the command and control interface between IPS applications.
IPS data or message
Intrusion Detection System Module. A switching module that performs intrusion detection in the
IDSM-2
Catalyst 6500 series switch.
78-16124-01
Installing Cisco Intrusion Prevention System Appliances and Modules 5.0
Glossary
GL-7