Cisco Intrusion Detection System Module (WS-X6381-IDS=) Network Monitoring Device

Organizations continue to deploy firewalls as their central gatekeepers to prevent unauthorized users from entering their networks. However, network security is in many ways similar to physical security in that no one technology serves all needs - rather, a layered defense provides the best results. Organizations are increasingly looking to additional security technologies to counter risk and vulnerability that firewalls alone cannot address. Intrusion detection systems provide around-the-clock network surveillance. They analyze the packet data streams within the network, searching for unauthorized activity, such as attacks by hackers, enabling users to respond immediately to security breaches. Using a physical analogy, IDS systems are equivalent to video cameras and motion sensors; they detect unauthorized or suspicious activity.??Cisco Systems, the worldwide leader in networking for the Internet, addresses the need for intrusion detection in switched local-area network (LANs) wit...