Wireless Network Security Why wireless?


CSA – End User View Cisco Network Admission Control (NAC)



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CSA – End User View

Cisco Network Admission Control (NAC)

  • Determines the users, their machines, and their roles
  • Grant access to network based on level of security compliance
  • Interrogation and remediation of noncompliant devices
  • Audits for security compliance

NAC - Overview

Cisco NAC Architecture

Cisco NAC Features

  • Client identification
    • Access via Active Directory, Clean Access Agent, or even web form
  • Compliance auditing
    • Non-compliant or vulnerable devices through network scans or Clean Access Agent
  • Policy enforcement
    • Quarantine access and provide notification to users of vulnerabilities

Cisco Firewall (Placement Options)


Source: Cisco, Deploying Firewalls Throughout Your Organization

Why Placing Firewalls in Multiple Network Segments?

  • Provide the first line of defense in network security infrastructures
  • Prevent access breaches at all key network junctures
  • WLAN separation with firewall to limit access to sensitive data and protect from data loss
  • Help organizations comply with the latest corporate and industry governance mandates
    • Sarbanes-Oxley (SOX)
    • Gramm-Leach-Bliley (GLB)
    • Health Insurance Portability and Accountability Act (HIPAA)
    • Payment Card Industry Data Security Standard (PCI DSS)

Cisco IPS

  • Designed to accurately identify, classify and stop malicious traffic
    • Worms, spyware, adware, network viruses which is achieved through detailed traffic inspection
  • Collaboration of IPS & WLC simplifies and automates threat detection & mitigation

CS-MARS:Cisco Security Monitoring, Analysis and Reporting System

  • Monitor the network
  • Detect and correlate anomalies (providing visualization)
  • Mitigate threats

Cross-Network Anomaly Detection and Correlation

  • MARS is configured to obtain the configurations of other network devices.
  • Devices send events to MARS via SNMP.
  • Anomalies are detected and correlated across all devices.

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