Cisco IPS 7.1 Installation Guide download pdf (Page 391)

Glossary

GL-13

Cisco Intrusion Prevention System Appliance Hardware Installation Guide for IPS 7.1

OL-24002-01

MD5

Message Digest 5. A one-way hashing algorithm that produces a 128-bit hash. Both MD5 and Secure

Hash Algorithm (SHA) are variations on MD4 and strengthen the security of the MD4 hashing

algorithm. Cisco uses hashes for authentication within the IPSec framework. Also used for message

authentication in SNMP v.2. MD5 verifies the integrity of the communication, authenticates the origin,

and checks for timeliness.

Meta engine

Defines events that occur in a related manner within a sliding time interval. This engine processes

events rather than packets.

MIB

Management Information Base. Database of network management information that is used and

maintained by a network management protocol, such as SNMP or CMIP. The value of a MIB object can

be changed or retrieved using SNMP or CMIP commands, usually through a GUI network management

system. MIB objects are organized in a tree structure that includes public (standard) and private

(proprietary) branches.

MIME

Multipurpose Internet Mail Extension. Standard for transmitting nontext data (or data that cannot be

represented in plain ASCII code) in Internet mail, such as binary, foreign language text (such as

Russian or Chinese), audio, or video data. MIME is defined in RFC 2045.

minor update

A minor version that contains minor enhancements to the product line. Minor updates are incremental

to the major version, and are also base versions for service packs.

module

A removable card in a switch, router, or security appliance chassis. The ASA 5500 AIP SSM and

ASA 5585-X IPS SSP are IPS modules.

monitoring

interface

See sensing interface.

MPF

Modular Policy Framework. A means of configuring security appliance features in a manner similar to

Cisco IOS software Modular QoS CLI.

MSFC, MSFC2

Multilayer Switch Feature Card. An optional card on a Catalyst 6000 supervisor engine that performs

L3 routing for the switch.

MSRPC

Microsoft Remote Procedure Call. MSRPC is the Microsoft implementation of the DCE RPC

mechanism. Microsoft added support for Unicode strings, implicit handles, inheritance of interfaces

(which are extensively used in DCOM), and complex calculations in the variable-length string and

structure paradigms already present in DCE/RPC.

MySDN

My Self-Defending Network. A part of the signature definition section of IDM and IME. It provides

detailed information about signatures.

NAC

Network Access Controller. See ARC.

NAS-ID

Network Access ID. An identifier that clients send to servers to communicate the type of service they

are attempting to authenticate.

NAT

Native Address Translation. A network device can present an IP address to the outside networks that is

different from the actual IP address of a host.

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