Moxa Technologies AirWorks AWK-1137C Series User Manual page 33

AirWorks AWK-1137C UM
Open
For security reasons, you should NOT set security mode to Open System, since authentication and data
encryption are NOT performed in Open System mode.
WEP (only for legacy mode)
NOTE Moxa includes WEP security mode only for legacy purposes. WEP is highly insecure and is considered fully
deprecated by the Wi-Fi alliance. We do not recommend the use of WEP security under any circumstances.
According to the IEEE 802.11
standard, WEP can be used for
authentication and data encryption
to maintain confidentiality. Shared
(or Shared Key) authentication type
is used if WEP authentication and
data encryption are both needed.
Normally, Open (or Open System)
authentication type is used when
WEP data encryption is run with
authentication.
When WEP is enabled as a security
mode, the length of a key (so-called
WEP seed) can be 64/128 bits,
which is actually a 40/104-bit secret key with a 24-bit initialization vector. The AWK-1137C provides 4 entities
of WEP key settings that can be selected to use with Key index. The selected key setting specifies the key to
be used as a send-key for encrypting traffic from the AP side to the wireless client side. All 4 WEP keys are used
as receive-keys to decrypt traffic from the wireless client side to the AP side.
The WEP key can be presented in two Key types, HEX and ASCII. Each ASCII character has 8 bits, so a 40-bit
(or 64-bit) WEP key contains 5 characters, and a 104-bit (or 128-bit) key has 13 characters. In hex, each
character uses 4 bits, so a 40-bit key has 10 hex characters, and a 128-bit key has 26 characters.
Authentication type
Setting
Open
Shared
Key type
Setting
HEX
ASCII
Key length
Setting
64 bits
128 bits
Key index
Setting
1-4
WEP key 1-4
Setting
ASCII type:
64 bits: 5 chars
128 bits: 13chars
Description
Data encryption is enabled, but without authentication
Data encryption and authentication are both enabled.
Description
Specifies WEP keys in hex-decimal number form
Specifies WEP keys in ASCII form
Description
Uses 40-bit secret keys with 24-bit initialization vector
Uses 104-bit secret key with 24-bit initialization vector
Description
Specifies which WEP key is used
Description
A string that can be used as a WEP seed for the RC4 encryption
engine.
3-19
Web Console Configuration
Factory Default
Open
Factory Default
HEX
Factory Default
64 bits
Factory Default
Open
Factory Default
None