Cisco IPS 7.1 Installation Guide download pdf (Page 388)

Glossary

GL-10

Cisco Intrusion Prevention System Appliance Hardware Installation Guide for IPS 7.1

OL-24002-01

hardware bypass

A specialized interface card that pairs physical interfaces so that when a software error is detected, a

bypass mechanism is engaged that directly connects the physical interfaces and allows traffic to flow

through the pair. Hardware bypass passes traffic at the network interface, does not pass it to the IPS

system.

host block

ARC blocks all traffic from a given IP address.

HTTP

Hypertext Transfer Protocol. The stateless request/response media transfer protocol used in the IPS

architecture for remote data exchange.

HTTPS

An extension to the standard HTTP protocol that provides confidentiality by encrypting the traffic from

the website. By default this protocol uses TCP port 443.

ICMP

Internet Control Message Protocol. Network layer Internet protocol that reports errors and provides

other information relevant to IP packet processing. Documented in RFC 792.

ICMP flood

Denial of Service attack that sends a host more ICMP echo request (“ping”) packets than the protocol

implementation can handle.

IDAPI

Intrusion Detection Application Programming Interface. Provides a simple interface between IPS

architecture applications. IDAPI reads and writes event data and provides a mechanism for control

transactions.

IDCONF

Intrusion Detection Configuration. A data format standard that defines operational messages that are

used to configure intrusion detection and prevention systems.

IDENT

Ident protocol, specified in RFC 1413, is an Internet protocol that helps identify the user of a particular

TCP connection.

IDIOM

Intrusion Detection Interchange and Operations Messages. A data format standard that defines the

event messages that are reported by intrusion detection systems and the operational messages that are

used to configure and control intrusion detection systems.

IDM

IPS Device Manager. A web-based application that lets you configure and manage your sensor. The

web server for IDM resides on the sensor. You can access it through Internet Explorer or Firefox web

browsers.

IDMEF

Intrusion Detection Message Exchange Format. The IETF Intrusion Detection Working Group draft

standard.

IDS MC

Management Center for IDS Sensors. A web-based IDS manager that can manage configurations for

up to 300 sensors.

IME

IPS Manager Express. A network management application that provides system health monitoring,

events monitoring, reporting, and configuration for up to ten sensors.

inline mode

All packets entering or leaving the network must pass through the sensor.

inline interface

A pair of physical interfaces configured so that the sensor forwards all traffic received on one interface

out to the other interface in the pair.

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