Appendix B Signature Engines

Service Engines

1. The second number in the range must be greater than or equal to the first number.

For More Information

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

Service TNS Engine

The Service TNS engine inspects TNS protocol. TNS provides database applications with a single common interface to all industry-standard network protocols. With TNS, applications can connect to other database applications across networks with different protocols. The default TNS listener port is TCP 1521. TNS also supports REDIRECT frames that redirect the client to another host and/or another TCP port. To support REDIRECT packets, the TNS engine listens on all TCP ports and has a quick TNS frame header validation routine to ignore non-TNS streams.

Table B-31lists the parameters specific to the Service TNS engine

.

Table B-31

Service TNS Engine Parameters

 

 

 

 

 

Parameter

 

Description

Value

 

 

 

 

direction

 

Specifies the direction of traffic:

from-service

 

 

• Traffic from service port destined to client port.

to-service

 

 

• Traffic from client port destined to service port.

 

 

 

 

specify-regex-string {yes

(Optional) Enables using a regular expression string:

string

no}

 

• regex-string—Specifies the regular expression

 

 

 

 

 

 

to search for.

 

 

 

 

specify-exact-match-offset

Enables the exact match offset:

0 to 65535

{yes no}

 

• exact-match-offset—Specifies the exact stream

 

 

 

 

 

 

offset the regex-string must report for a match to

 

 

 

be valid.

 

 

 

 

specify-max-match-offset

Enables maximum match offset:

0 to 65535

{yes no}

 

• max-match-offset—Specifies the maximum

 

 

 

 

 

 

stream offset the regex-string must report for a

 

 

 

match to be valid.

 

 

 

 

specify-min-match-offset

Enables minimum match offset:

0 to 65535

{yes no}

 

• min-match-offset—Specifies the minimum

 

 

 

 

 

 

stream offset the regex-string must report for a

 

 

 

match to be valid.

 

 

 

 

specify-min-match-length

Enables the minimum match length:

0 to 65535

{yes no}

 

– min-match-length—Specifies the minimum

 

 

 

 

 

 

number of bytes the regex-string must

 

 

 

match.

 

 

 

 

 

 

 

Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2

 

 

 

 

 

 

 

OL-29168-01

 

 

B-59

 

 

 

 

 

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Cisco Systems IPS4510K9 manual Service TNS 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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