Appendix B Signature Engines

Sweep Engines

Table B-37

Sweep Engine Parameters (continued)

 

 

 

 

 

Parameter

 

Description

Value

 

 

 

 

storage-key

 

Specifies the type of address key used to store persistent

Axxx

 

 

data:

AxBx

 

 

•

Attacker address

Axxb

 

 

 

 

 

• Attacker and victim addresses

 

 

 

• Attacker address and victim port

 

 

 

 

suppress-reverse

Does not fire when a sweep has fired in the reverse

true false

 

 

direction on this address set.

 

 

 

 

swap-attacker-victim

Swaps the attacker and victim addresses and ports

true false (default)

 

 

(source and destination) in the alert message and in any

 

 

 

actions taken.

 

 

 

 

 

tcp-flags

 

Specifies the TCP flags to match when masked by

urg

 

 

mask:

ack

 

 

 

 

 

 

•

URG bit

psh

 

 

 

 

 

 

•

ACK bit

rst

 

 

 

 

 

 

•

PSH bit

syn

 

 

 

 

 

 

•

RST bit

fin

 

 

 

 

 

 

•

SYN bit

 

 

 

•

FIN bit

 

 

 

 

 

unique

 

Specifies the threshold number of unique port

0 to 65535

 

 

connections between the two hosts.

 

 

 

 

 

 

For More Information

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

Sweep Other TCP Engine

The Sweep Other TCP engine analyzes traffic between two hosts looking for abnormal packets typically used to fingerprint a victim. You can tune the existing signatures or create custom signatures.

TCP sweeps must have a TCP flag and mask specified. You can specify multiple entries in the set of TCP flags. And you can specify an optional port range to filter out certain packets.

 

Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2

B-70

OL-29168-01

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Cisco Systems IPS4510K9 manual Sweep Other TCP Engine
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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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