Accepted Solutions
Watch out with wep and key length:
a. 40 bit key + 24 bit iv = 64 bit Wep
b. 104 bit key + 24 bit iv = 128 bit Wep
c. 128 bit key + 24 bit iv = 156 bit Wep
In aironet you can select option a and b and that is a bit confusing because they say 40 and 128 in the options where 40 references the key and 128 references the total. Believe me count the hex numbers and you will see where cisco says 128 it should have been 108.
ex:
encryption vlan 20 key 3 size 128bit 7 741F07447BA1D4382450CB68F37A transmit-key
http://www.cse.wustl.edu/~jain/cse574-06/ftp/wireless_security/Fig14.gif" />
In airespace you can select option a and b and that is a less confusing because they say 40 and 104 in the options where 40 and 108 references the key.
Watch out with wep and key length:
a. 40 bit key + 24 bit iv = 64 bit Wep
b. 104 bit key + 24 bit iv = 128 bit Wep
c. 128 bit key + 24 bit iv = 156 bit Wep
In aironet you can select option a and b and that is a bit confusing because they say 40 and 128 in the options where 40 references the key and 128 references the total. Believe me count the hex numbers and you will see where cisco says 128 it should have been 108.
ex:
encryption vlan 20 key 3 size 128bit 7 741F07447BA1D4382450CB68F37A transmit-key
http://www.cse.wustl.edu/~jain/cse574-06/ftp/wireless_security/Fig14.gif" />
In airespace you can select option a and b and that is a less confusing because they say 40 and 104 in the options where 40 and 108 references the key.
