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cisco certification phone number.Hardware does not support CiscoTrustSec fold plus SGTFigure 4.24 Using SXP4.10.6 Intrusion Detection and Intrusion Prevention Intrusion detection and intrusion prevention controls are both administrative and physical access control measures, as well as technical access control measures. This section discusses the various technical access control measures. Intrusion detection systems (IDS) and intrusion prevention systems (IPS) detect and defend against unauthorized access to a network or information system. IDS and IPS focus on detecting/preventing threats or unauthorized access, respectively. The main difference between IDS and IPS is the way they are deployed. IDS typically analyzes copies of packets received from a switch's promiscuous ports, and its primary use is to detect threats or anomalous conditions and issue alert messages to notify security administrators. This is called promiscuous mode. IDS also has the ability to "drive" other devices (e.g., firewalls or routers as security policy enforcement devices) to perform error corrective actions. For example, an IDS can issue a command to a firewall device to reset a connection. Since the IDS does not "personally" intercept packets, the response time to block threats is higher than that of an IPS system,4.10 Implementation of Identity and Access Control Mechanisms 219may result in some malicious packets flowing into the network. However, the IPS is deployed inline and can detect threats in packets that traverse itself. When [the PS detects a threat, it can immediately block it, for example, by dropping the detected malicious packets. The disadvantage of deploying IPS inline is that it requires additional processing of packets, which increases latency and may also drop legitimate traffic in the event of false positives. Examples of IDS and IPS deployments are shown in Figure 4-25 and Figure 4-26, respectively.Figure 4-25 IDS Deployment ExampleFigure 4-26 IPS Deployment Example.......... The following shows the exam points related to intrusion detection and intrusion prevention systems. (II IDS Analyze copies of packets (deployed in promiscuous mode).There is no increased latency due to packet inspection. Cannot block packets directly but can be linked with other devices (for example, firewalls) to have those devices drop malicious packets.220 Chapter 4 Introduction to Access Control