Glossary

String engine

subsignature

surface mounting

switch

SwitchApp

SYN flood

system image

A signature engine that provides regular expression-based pattern inspection and alert functionality for multiple transport protocols, including TCP, UDP, and ICMP.

A more granular representation of a general signature. It typically further defines a broad scope signature.

Refers to attaching rubber feet to the bottom of a sensor when it is installed on a flat surface. The rubber feet allow proper airflow around the sensor and they also absorb vibration so that the hard-disk drive is less impacted.

Network device that filters, forwards, and floods frames based on the destination address of each frame. The switch operates at the data link layer of the OSI model.

A component of the IPS. The IPS 4500 series sensors. have a built in switch that provides external monitoring interfaces. The SwitchApp enables the InterfaceApp and sensor initialization scripts to communicate with and control the switch.

Denial of Service attack that sends a host more TCP SYN packets (request to synchronize sequence numbers, used when opening a connection) than the protocol implementation can handle.

The full IPS application and recovery image used for reimaging an entire sensor.

T

TAC

A Cisco Technical Assistance Center. There are four TACs worldwide.

TACACS+

Terminal Access Controller Access Control System Plus. Proprietary Cisco enhancement to Terminal

 

Access Controller Access Control System (TACACS). Provides additional support for authentication,

 

authorization, and accounting.

target value rating

TVR. A weight associated with the perceived value of the target. Target value rating is a

 

user-configurable value (zero, low, medium, high, or mission critical) that identifies the importance of

 

a network asset (through its IP address).

TCP

Transmission Control Protocol. Connection-oriented transport layer protocol that provides reliable

 

full-duplex data transmission. TCP is part of the TCP/IP protocol stack.

TCPDUMP

The TCPDUMP utility is a free network protocol analyzer for UNIX and Windows. It lets you examine

 

data from a live network or from a capture file on disk. You can use different options for viewing

 

summary and detail information for each packet. For more information, see http://www.tcpdump.org/.

TCP reset interface

The interface on the IDSM2 that can send TCP resets. On most sensors the TCP resets are sent out on

 

the same sensing interface on which the packets are monitored, but on the IDSM2 the sensing interfaces

 

cannot be used for sending TCP resets. On the IDSM2 the TCP reset interface is designated as port 1

 

with Catalyst software, and is not visible to the user in Cisco IOS software. The TCP reset action is

 

only appropriate as an action selection on those signatures that are associated with a TCP-based service.

Telnet

Standard terminal emulation protocol in the TCP/IP protocol stack. Telnet is used for remote terminal

 

connection, enabling users to log in to remote systems and use resources as if they were connected to

 

a local system. Telnet is defined in RFC 854.

 

 

Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2

 

 

 

 

 

 

 

OL-29168-01

 

 

GL-21

 

 

 

 

 

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Cisco Systems IPS4510K9 manual Authorization, and accounting, Network asset through its IP address, GL-21
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IPS4510K9 specifications

Cisco Systems has long been a leading player in network security, and its IPS (Intrusion Prevention System) series is a testament to its commitment to safeguarding digital environments. Among its notable offerings are the IPS4510K9 and IPS4520K9 models, both designed to provide advanced threat protection for mid-sized to large enterprise networks.

The Cisco IPS4510K9 and IPS4520K9 are distinguished by their cutting-edge features that help organizations defend against a myriad of cyber threats. These systems utilize a multi-layered approach to security, integrating intrusion prevention, advanced malware protection, and comprehensive visibility across the network.

One of the primary characteristics of the IPS4510K9 is its high performance. It boasts a throughput of up to 1 Gbps, making it suitable for environments that demand rapid data processing and real-time responses to threats. The IPS4520K9, on the other hand, enhances that capability with improved throughput of up to 2 Gbps, accommodating larger enterprises with heavier network traffic. These models are equipped with powerful processors that support complex signature matching and can intelligently distinguish between legitimate traffic and potential threats.

In addition to performance, both models are designed with scalability in mind. They can be easily integrated into existing Cisco infrastructures. This facilitates a seamless enhancement of security without causing significant interruptions to ongoing operations. Moreover, they offer flexible deployment options, allowing organizations to operate them inline or out of band depending on their specific needs.

The Cisco IPS4510K9 and IPS4520K9 leverage advanced detection technologies, utilizing a variety of signature types and heuristic analysis to detect known and unknown threats effectively. They are equipped with real-time alerting and reporting capabilities, giving security teams immediate visibility into potential breaches and enabling them to respond swiftly.

Furthermore, both models support a range of management options through the Cisco Security Manager, allowing for centralized administration, streamlined policy management, and enhanced monitoring capabilities. Automated updates ensure the systems remain current with the latest threat intelligence, vital for staying ahead of evolving cyber threats.

In summary, the Cisco Systems IPS4510K9 and IPS4520K9 represent powerful solutions for organizations seeking robust intrusion prevention capabilities. With their high performance, scalability, and advanced detection technologies, these systems are essential tools in the ever-changing landscape of cybersecurity, providing enterprises with the peace of mind needed to operate securely in today's digital world.
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