4.7 IEEE 802.11 WEP Security
The IEEE 802.11 standard includes a Shared Key data privacy mechanism,
called ‘Wired Equivalent Privacy’.
Features of WEP are:
•
Data encryption using a 40 bit shared key
•
No key distribution mechanism. The shared key (password) must be
distributed manually to all personnel and either be remembered or stored
somewhere on the hard disk.
•
Simple authentication of clients based on hardware address.
4.8 AirLock™ Security Architecture
The No Wires Needed AirLock™ Security architecture provides superior
protection of your data combined with improved ease of use through secure
automated key management, while maintaining full compatibility with the IEEE
802.11 standard.
Some features of AirLock™ Security are:
•
Data encryption using 128 bit random session keys
•
Key management using a public / private key scheme. Keys are never
transmitted as plain text
•
Strong authentication of the client stations based on challenge /
response.
•
Automatic scale back function (ASBF™) maintains compliance to IEEE
802.11 shared key security for client stations that do not support
AirLock™ Security.
4.9 More about Cells
Each Access Point in the network forms the centre of a cell, or BSS. The Cells
should overlap slightly to guarantee seamless wireless connectivity
everywhere. Nearby Access Points should preferably send and receive on
different channels for maximum throughput.
Creating a cell plan for your site can be complicated, and is usually done by
experts employing special measuring equipment.
Furthermore, the radio channels you may use depend on both the capabilities
of the PC-Cards you are deploying, as well as the regulations in your area.
Summary of Contents for Parrot 1100
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