Appendix B Signature Engines

Service Engines

For More Information

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

Service P2P Engine

P2P networks use nodes that can simultaneously function as both client and server for the purpose of file sharing. P2P networks often contain copyrighted material and their use on a corporate network can violate company policy. The Service P2P engine monitors such networks and provides optimized TCP and UDP P2P protocol identification. The Service P2P engine has the following characteristics:

Listens on all TCP and UDP ports.

Increased performance through the use of hard-coded signatures rather than regular expressions.

Ignores traffic once P2P protocol is identified or after seeing 10 packets without a P2P protocol being identified.

Note Because the P2P signatures are hard coded, the only parameters that you can edit are the Master engine parameters.

For More Information

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

Service RPC Engine

The Service RPC engine specializes in RPC protocol and has full decode as an anti-evasive strategy. It can handle fragmented messages (one message in several packets) and batch messages (several messages in a single packet).

The RPC portmapper operates on port 111. Regular RPC messages can be on any port greater than 550. RPC sweeps are like TCP port sweeps, except that they only count unique ports when a valid RPC message is sent. RPC also runs on UDP.

Table B-27lists the parameters specific to the Service RPC engine.

Table B-27

Service RPC 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.

 

 

 

 

 

protocol

 

Specifies the protocol of interest.

tcp

 

 

 

udp

 

 

 

 

service-ports

 

Specifies a comma-separated list of ports or port

0 to 655351

 

 

ranges where the target service resides.

a-b[,c-d]

 

 

 

 

 

 

Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2

 

 

 

 

 

 

 

OL-29168-01

 

 

B-53

 

 

 

 

 

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Cisco Systems IPS4510K9 manual Service P2P Engine, Service RPC Engine

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.