Configuring Alert Severity

Chapter 7 Defining Signatures

Configuring Signatures

Step 7 Press Enter to apply the changes or enter no to discard them.

Use the alert-severitycommand in signature definition submode to configure the severity of a signature.

The following options apply:

•sig_id—Identifies the unique numerical value assigned to this signature. This value lets the sensor identify a particular signature. The value is 1000 to 65000.

•subsig_id—Identifies the unique numerical value assigned to this subsignature. A subsignature ID is used to identify a more granular version of a broad signature. The value is 0 to 255.

•alert-severity—Specifies the severity of the alert:

–high —Dangerous alert.

–medium—Medium level alert (default).

–low—Low level alert.

–informational—Informational alert.

	Configuring Alert Severity
	To configure the alert severity, follow these steps:

Step 1	Log in to the CLI using an account with administrator or operator privileges.
Step 2	Enter signature definition submode.
	sensor# configure terminal
	sensor(config)# service signature-definition sig1
Step 3	Specify the signature you want to configure.
	sensor(config-sig)# signatures 9000 0
Step 4	Assign the alert severity.
	sensor(config-sig-sig)# alert-severity medium
Step 5	Verify the settings.
	sensor(config-sig-sig)# show settings
	<protected entry>
	sig-id: 9000
	subsig-id: 0
	-----------------------------------------------
	alert-severity: medium default: medium
	sig-fidelity-rating: 75 <defaulted>
	promisc-delta: 0 <defaulted>
	sig-description
	-----------------------------------------------
	sig-name: Back Door Probe (TCP 12345) <defaulted>
	sig-string-info: SYN to TCP 12345 <defaulted>
	sig-comment: <defaulted>
	alert-traits: 0 <defaulted>
	release: 40 <defaulted>
	-----------------------------------------------
	vulnerable-os: general-os <defaulted>
	Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2

OL-29168-01		7-9
OL-29168-01		7-9

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.

Cisco Systems IPS4510K9 manual Configuring Alert Severity, Assign the alert severity

Models: IPS4510K9

Step 7 Press Enter to apply the changes or enter no to discard them.