Appendix B Signature Engines

Understanding Signature Engines

–HTTP V2—Supports IOS IPS. This signature engine provides a protocol decode engine tuned for IOS IPS. If you try to use this engine, you receive an error message.

–IDENT—Inspects IDENT (client and server) traffic.

–MSRPC—Inspects MSRPC traffic.

–MSSQL—Inspects Microsoft SQL traffic.

–NTP—Inspects NTP traffic.

–P2P—Inspects P2P traffic.

–RPC—Inspects RPC traffic.

–SMB Advanced—Processes Microsoft SMB and Microsoft DCE/RPC (MSRPC) over SMB packets.

Note The SMB engine has been replaced by the SMB Advanced engine. Even though the SMB engine is still visible in IDM, IME, and the CLI, its signatures have been obsoleted; that is, the new signatures have the obsoletes parameter set with the IDs of their corresponding old signatures. Use the new SMB Advanced engine to rewrite any custom signature that were in the SMB engine.

–SMPT V1—Supports IOS IPS.

This signature engine provides a protocol decode engine tuned for IOS IPS. If you try to use this engine, you receive an error message.

–SNMP—Inspects SNMP traffic.

–SSH—Inspects SSH traffic.

–TNS—Inspects TNS traffic.

•State—Conducts stateful searches of strings in protocols such as SMTP. The state engine has a hidden configuration file that is used to define the state transitions so new state definitions can be delivered in a signature update.

•String—Searches on Regex strings based on ICMP, TCP, or UDP protocol. There are three String engines: String ICMP, String TCP, and String UDP.

•String XL—Searches on Regex strings based on ICMP, TCP, or UDP protocol.The String XL engines provide optimized operation for the Regex accelerator card. There are three String engines: String ICMP XL, String TCP XL, and String UDP XL.

Note The IPS 4345, IPS 4360, IPS 4510, IPS 4520, ASA 5525-X IPS SSP,

ASA 5545-X IPS SSP, ASA 5555-X IPS SSP, and ASA 5585-X IPS SSP support the String XL engines and the Regex accelerator card.

Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2

 

OL-29168-01

B-3

 

Page 612 Page 614
Page 613
Image 613
Cisco Systems IPS4510K9 manual Appendix B Signature Engines Understanding Signature Engines
Page 612 Page 614

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