Cisco IPS-4255-K9 - Intrusion Protection Sys 4255 Installation Manual page 395

Version identifier. Part of the UDI.
VID
Versatile Interface Processor. Interface card used in Cisco 7000 and Cisco 7500 series routers. The VIP
VIP
provides multilayer switching and runs Cisco IOS. The most recent version of the VIP is VIP2.
A logical grouping of sensing interfaces and the configuration policy for the signature engines and
virtual sensor
alarm filters to apply to them. In other words, multiple virtual sensors running on the same appliance,
each configured with different signature behavior and traffic feeds.
A virtualized interface has been divided into subinterfaces each of which consists of a group of VLANs.
virtualized sensing
interface You can associate a virtual sensor with one or more subinterfaces so that different intrusion prevention
policies can be assigned to those subinterfaces. You can virtualize both physical and inline interfaces.
Hidden, self-replicating section of computer software, usually malicious logic, that propagates by
virus
infecting—that is, inserting a copy of itself into and becoming part of—another program. A virus
cannot run by itself; it requires that its host program be run to make the virus active.
A signature update specifically addressing viruses.
virus update
Virtual Local Area Network. Group of devices on one or more LANs that are configured (using
VLAN
management software) so that they can communicate as if they were attached to the same wire, when
in fact they are located on a number of different LAN segments. Because VLANs are based on logical
instead of physical connections, they are extremely flexible.
VLAN Trunking Protocol. Cisco Layer 2 messaging protocol that manages the addition, deletion, and
VTP
renaming of VLANs on a network-wide basis.
CiscoWorks VPN/Security Management Solution. A suite of network security applications that
VMS
combines web-based tools for configuring, monitoring, and troubleshooting enterprise VPN, firewalls,
network intrusion detection systems and host-based intrusion prevention systems.
Voice over IP. The capability to carry normal telephony-style voice over an IP-based internet with
VoIP
POTS-like functionality, reliability, and voice quality. VoIP enables a router to carry voice traffic (for
example, telephone calls and faxes) over an IP network. In VoIP, the DSP segments the voice signal into
frames, which then are coupled in groups of two and stored in voice packets. These voice packets are
transported using IP in compliance with ITU-T specification H.323.
Virtual Private Network(ing). Enables IP traffic to travel securely over a public TCP/IP network by
VPN
encrypting all traffic from one network to another. A VPN uses "tunneling" to encrypt all information
at the IP level.
VLAN Trunking Protocol. A Cisco Layer 2 messaging protocol that manages the addition, deletion,
VTP
and renaming of VLANs on a network-wide basis.
One or more attributes of a computer or a network that permit a subject to initiate patterns of misuse
vulnerability
on that computer or network.
W
wide-area network. Data communications network that serves users across a broad geographic area and
WAN
often uses transmission devices provided by common carriers. Frame Relay, SMDS, and X.25 are
examples of WANs.
OL-18504-01
Cisco Intrusion Prevention System Appliance and Module Installation Guide for IPS 7.0
Glossary
GL-23