Total Jumbo Packets

Chapter 4 Configuring Interfaces

Configuring CDP Mode

User the cdp-modecommand in service interface mode to have the sensor either forward or drop CDP packets.

The following option applies:

•cdp-mode{forward-cdp-packets drop-cdp-packets}—Configures the sensor to either forward CDP packets or drop CDP packets. The default is drop-cdp-packets.

Enabling CDP Mode

To configure CDP mode, follow these steps:

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

Step 2 Enter interface submode.

sensor# configure terminal sensor(config)# service interface

Step 3 Enable CDP mode.

sensor(config-int)#cdp-mode forward-cdp-packets

Step 4 Verify the settings.

sensor(config-int)# show settings

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

bypass-mode: auto <defaulted>

interface-notifications

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

missed-percentage-threshold: 0 percent <defaulted>

notification-interval: 30 seconds <defaulted>

idle-interface-delay: 30 seconds <defaulted>

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

cdp-mode: forward-cdp-packets default: drop-cdp-packets sensor(config-int)#

Displaying Interface Statistics

Note The show interface command output for the IPS 4510 and IPS 4520 does not include the total undersize packets or total transmit FIFO overruns.

Note When the IPS 4510 and IPS 4520 are in bypass mode, VLAN statistics in the show interface and packet display/capture command output do not show any packets.

The jumbo packet count in the show interface command output from the lines

Received and Total Jumbo Packets Transmitted for ASA IPS modules may be larger than expected due to some packets that were almost jumbo size on the wire being counted as jumbo size by the IPS. This miscount is a result of header bytes added to the packet by the ASA before the packet is transmitted to the IPS. For IPv4, 58 bytes of header data are added. For IPv6, 78 bytes of header data are added. The ASA removes the added IPS header before the packet leaves the ASA.

 

 

Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2

 

 

 

 

 

 

OL-29168-01

 

 

4-37

 

 

 

 

 

Page 164 Page 166
Page 165
Image 165
Cisco Systems IPS4510K9 manual Displaying Interface Statistics, Enabling CDP Mode, Enable CDP mode
Page 164 Page 166

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