Appendix B Signature Engines

Atomic Engine

•For more information on the parameters common to all signature engines, see Master Engine, page B-4.

Atomic Engine

The Atomic engine contains signatures for simple, single packet conditions that cause alerts to be fired. This section describes the Atomic engine, and contains the following topics:

•Atomic ARP Engine, page B-14

•Atomic IP Advanced Engine, page B-15

•Atomic IP Engine, page B-25

•Atomic IPv6 Engine, page B-29

Atomic ARP Engine

The Atomic ARP engine defines basic Layer 2 ARP signatures and provides more advanced detection of the ARP spoof tools dsniff and ettercap.

Table B-7lists the parameters that are specific to the Atomic ARP engine.

Table B-7

Atomic ARP Engine Parameters

 

 

 

 

 

Parameter

 

Description

Value

 

 

 

specify-arp-operation {yes no}

(Optional) Enables ARP operation:

0 to 65535

 

 

• arp-operation—Specifies the type of ARP

 

 

 

operation to inspect.

 

 

 

 

specify-mac-flip {yes no}

(Optional) Enables MAC address flip times:

0 to 65535

 

 

• mac-flip—Specifies how many times to flip

 

 

 

the MAC address in the alert.

 

 

 

 

specify-request-inbalance {yes

(Optional) Enables request inbalance:

0 to 65535

no}

 

• request-inbalance—Specifies the value for

 

 

 

 

 

 

firing an alert when there are this many more

 

 

 

requests than replies on the IP address.

 

 

 

 

 

 

Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2

B-14

OL-29168-01

Page 623 Page 625
Page 624
Image 624
Cisco Systems IPS4510K9 manual Atomic Engine, Atomic ARP Engine
Page 623 Page 625

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.
Top Page Image Contents