SENA LS100W - Manual (Page 24)

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Even when a certain value or an asterisk (‘ * ’) symbol is entered in a channel value entry using the
‘set’ command, the LS100W will ignore those values and automatically set the values as the AP
channel values of the group in which it belongs.
3.1.4 Security
802.11b based applications are different from wired Ethernet applications in the way they support
security functions. The 802.11 Committee recognizes that the wired Ethernet supports a very high
level of internal security. Therefore, when creating policies for Wireless LAN standards, the Committee
has aimed to ensure that Wireless has the same high level of security as that of the Ethernet.. WEP
(wired equivalent privacy) uses RSA Security's RC4 PRNG encryption algorithm and 40-bit shared key
to encrypt data. Thus, in the LS100W, 5 bytes of ASCII characters or 10-digit Hexadecimal numbers
are used to represent 64 bits of WEP1, and 13 bytes of ASCII characters or 26-digit Hexadecimal
numbers are used to represent 128 bits of WEP1. The shortcoming of WEP is that it can encrypt only
the body of the data frame. Frame headers and other types of frames are not encrypted.
3.2 Setting
For proper operation of the LS100W in a wireless environment, users must set the wireless
parameters in the LS100W’s Wireless LAN according to the requirements of the designated Wireless
LAN network environment. To do this, users must check the following:
- Type of Wireless LAN network (infrastructure/ad-hoc)
- Wireless LAN SSID and channel
- Whether a Wireless LAN WEP is used, and the WEP setting status (number of bits, key values,
and coding methods)
- Whether Wireless LAN authentication protocols are used for the Wireless LAN connection
Some Wireless LAN networks require authentication protocols (like MD5).
Users can check the current Wireless LAN settings by using console commands:
> get wlan
SSID: Default
Type: Infrastructure
National Code: Korea
Encryption Type: 64bit
Key Input Method: Hexadecimal
WEP Key: 1234567890
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