Wireless Security

Wireless Security

1. MAC address filtering

2. authentication

   • 802.1X
     • RADIUS server
       • NAS
         • supplicant
           • PPP
         • IPsec
       • EAP

3. encryption

   • WEP
     • 64/128 bit
       • IV
       • static and shared key
     • no auth
   • WPA
     • keys per user, per sesssion
     • TKIP
       • 128 bit
   • WPA2
     • 128 bit block cipher
     • AES
     • enterprise with RADIUS

4. beacon - frame sent regularly

5. Wireless bridge

   • P to P
   • P to MP

6. multipath