Chapter 10 Configuring Global Correlation

Understanding Network Participation

Figure 10-1shows the role of the sensor and the global correlation servers.

Figure 10-1 IPS Management and Global Correlation Server Interaction

 

 

 

 

 

 

Database

 

 

 

 

Reputation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Query

 

 

 

 

 

Telemetry

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cisco Data Clients

 

 

 

 

 

 

 

Reputation

(CA-Sig, Sec-Analysis)

Server(s)

 

 

 

 

 

 

 

Reputation

Client

Cisco IPS

Sensor

Application

Reputation

Database

Event

Manager

UI

Support

Events

Management Tools

Config (CLI/IDM/IME/

CSM/MARS)

251234

The global correlation servers provide information to the sensor about certain IP addresses that may identify malicious or infected hosts. The sensor uses this information to determine which actions, if any, to perform when potentially harmful traffic is received from a host with known reputation. Because the global correlation database changes rapidly, the sensor must periodically download global correlation updates from the global correlation servers.

Caution As with signature updates, when the sensor applies a global correlation update, it may trigger bypass. Whether or not bypass is triggered depends on the traffic load of the sensor and the size of the signature/global correlation update. If bypass mode is turned off, an inline sensor stops passing traffic while the update is being applied.

For More Information

For more information about viewing global correlation statistics, see Displaying Statistics, page 17-28.

Understanding Network Participation

Network participation lets us collect nearly real-time data from sensors around the world. Sensors installed at customer sites can send data to the SensorBase Network. These data feed in to the global correlation database to increase reputation fidelity. Communication between sensors and the SensorBase Network involves an HTTPS request and response over TCP/IP. Network participation gathers the following data:

•Signature ID

•Attacker IP address

•Attacker port

•Maximum segment size

•Victim IP address

•Victim port

•Signature version

•TCP options string

•Reputation score

•Risk rating

 

Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2

10-4

OL-29168-01

Page 337 Page 339
Page 338
Image 338
Cisco Systems IPS4510K9 manual Understanding Network Participation, 10-4
Page 337 Page 339

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