Module sécurité13-140

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Objectives  Describe the need for WLAN security.  Describe the evolution of WLAN security methods.  Identify common authentication and encryption technologies used in WLANs.  Explain the benefits and weaknesses of the common security methods used in WLANs. © 2006 Cisco Systems, Inc. All rights reserved. The Need for WLAN Security  Vulnerabilities: War driving Non-secret SSID MAC filtering Automatic DHCP Man-in-the middle attacks Cracking WEP Initialization Vector attacks Password Crackin

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   © 2006 Cisco Systems, Inc. All rights reserved. Objectives  Describe the need for WLAN security.  Describe the evolution of WLAN security methods.  Identify common authentication and encryptiontechnologies used in WLANs.  Explain the benefits and weaknesses of the commonsecurity methods used in WLANs.   © 2006 Cisco Systems, Inc. All rights reserved. The Need for WLAN Security  Vulnerabilities:War drivingNon-secret SSIDMAC filteringAutomatic DHCPMan-in-the middle attacksCracking WEPInitialization Vector attacksPassword CrackingDoS attacks  WLAN Security requires: Authentication:Proves the user belongs on the networkEncryption:Protects the data traversing the network   © 2006 Cisco Systems, Inc. All rights reserved. 802.11 Security Basics  Data privacy  Authentication, authorization and accounting (AAA)  Segmentation  Monitoring  Policy   © 2006 Cisco Systems, Inc. All rights reserved. Evolution of WLAN Security
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