Chapter 7 Defining Signatures

Configuring Signatures

The following options apply:

ftp-enable {true false}—Enables protection for FTP services. Set to true to require the sensor to inspect FTP traffic. The default is false.

http-policy—Enables inspection of HTTP traffic:

aic-web-ports—Specifies the variable for ports to look for AIC traffic. The valid range is 0 to 65535. A comma-separated list of integer ranges a-b[,c-d] within 0-65535. The second number in the range must be greater than or equal to the first number. The default is

80-80,3128-3128,8000-8000,8010-8010,8080-8080,8888-8888,24326-24326.

http-enable [true false]—Enables protection for web services. Set to true to require the sensor to inspect HTTP traffic for compliance with the RFC. The default is false.

max-outstanding-http-requests-per-connection—Specifies the maximum allowed HTTP requests per connection. The valid value is 1 to 16. The default is 10.

Configuring the Application Policy

To configure the application policy, follow these steps:

Step 1 Log in to the CLI using an account with administrator or operator privileges.

Step 2 Enter application policy submode.

sensor# configure terminal

sensor(config)# service signature-definition sig1 sensor(config-sig)#application-policy

Step 3 Enable inspection of FTP traffic.

sensor(config-sig-app)# ftp-enable true

Step 4 Configure the HTTP application policy:

a.Enter HTTP application policy submode.

sensor(config-sig-app)# http-policy

b.Enable HTTP application policy enforcement.

sensor(config-sig-app-htt)# http-enable true

c.Specify the number of outstanding HTTP requests per connection that can be outstanding without having received a response from the server.

sensor(config-sig-app-htt)#max-outstanding-http-requests-per-connection 5

d.Edit the AIC ports.

sensor(config-sig-app-htt)#aic-web-ports 80-80,3128-3128

 

Step 5

Verify your settings.

 

 

sensor(config-sig-app-htt)# exit

 

 

sensor(config-sig-app)# show settings

 

 

application-policy

 

 

-----------------------------------------------

 

 

 

 

 

http-policy

 

 

-----------------------------------------------

 

 

 

 

 

http-enable: true default: false

 

 

max-outstanding-http-requests-per-connection: 5 default: 10

 

 

aic-web-ports: 80-80,3128-3128 default: 80-80,3128-3128,8000-8000,8010-

 

 

8010,8080-8080,8888-8888,24326-24326

 

 

 

 

 

Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2

 

 

 

 

 

 

OL-29168-01

 

 

7-19

 

 

 

 

 

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Cisco Systems IPS4510K9 manual Configuring the Application Policy, Enable inspection of FTP traffic, Edit the AIC ports

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.