User's Manual

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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 recognized that the wired Ethernet supported a very high
level of internal security. Therefore, when creating policies for Wireless LAN standards, the Committee
tried to ensure the same level of for Wireless as the Ethernet had. 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 values are used to represent 64 bits of WEP1, and 13 bytes of ASCII
values 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 specific 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 that, 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
Name: Default
Type: Infrastructure
Encryption: 128bit
PassKey: ASCII
KeyWord: WEP128BitTest
>
Table 3-1 Wireless Lan Settings Parameters
Parameter Values
Network Type Infrastructure mode or Ad-hoc mode
SSID Default / Max 16 characters