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802.1x authentication for wireless LANs provides centralized, server-based
athentication of end users.
1) A client sends a “start” message to an access point, which requests the
identity of the client.
2) The client replies with a response packet containing an identity, and the
access point forwards the packet to an authentication server.
3) The authentication server sends an “accept” packet to the access point.
4) The access point places the client port in authorized state, and traffic is
allowed to proceed.
It is necessary that the Radius page have to be configured if the option
“802.1x” is seleted.
If the 802.1x – Dynamic WEP option is selected, and then you only have to
choose which WEP type you want. Due to the key value will be generated by
system.
n 64 (40) Bits or 128 (104) bits
There are two levels of encryption 64 bits and 128 bits. The 64 bits
encryption is referenced as a lower level encryption. The 128 bits encryption
is referenced as a higher level encryption.
The 64 bits WEP encryption use 40 bits as a secret key, which can
controlled by user, and 24 bits as the initialize vector, which user can not
control. These two portions plus together is 64 bits encryption. Some other
vendor’s product might refer as 40 bits encryption. It is the same thing.
The 128 bits WEP encryption use 104 bits as a secret key, which can
controlled by user, and 24 bits as the initialize vector, which user can not
control. These two portions plus together is 128 bits encryption. Some other
vendor’s product might refer as 104 bits encryption. It is the same thing.