AirLive WT-2000PCI User Manual download pdf (Page 34)

AirLive WT-2000PCI User’s Manual

6. What is BSS ID？

A specific Ad hoc LAN is called a Basic Service Set (BSS). Computers in a BSS must be

configured with the same BSS ID.

7. What is WEP？

WEP is Wired Equivalent Privacy, a data privacy mechanism based on a 40 bit shared key

algorithm, as described in the IEEE 802 .11 standard.

8. What is TKIP?

TKIP is a quick-fix method to quickly overcome the inherent weaknesses in WEP security,

especially the reuse of encryption keys. TKIP is involved in the IEEE 802.11i WLAN security

standard, and the specification might be officially released by early 2003.

9. What is AES?

AES (Advanced Encryption Standard), a chip-based security, has been developed to ensure

the highest degree of security and authenticity for digital information, wherever and however

communicated or stored, while making more efficient use of hardware and/or software than

previous encryption standards. It is also included in IEEE 802.11i standard. Compare with AES,

TKIP is a temporary protocol for replacing WEP security until manufacturers implement AES at

the hardware level.

10. Can Wireless products support printer sharing？

Wireless products perform the same function as LAN products. Therefore, Wireless products

can work with Netware, Windows 2000, or other LAN operating systems to support printer or

file sharing.

11. Would the information be intercepted while transmitting on air？

WLAN features two-fold protection in security. On the hardware side, as with Direct Sequence

Spread Spectrum technology, it has the inherent security feature of scrambling. On the

software side, WLAN series offer the encryption function (WEP) to enhance security and

Access Control. Users can set it up depending upon their needs.

12. What is DSSS？What is FHSS？And what are their differences？

Frequency-hopping spread-spectrum (FHSS) uses a narrowband carrier that changes

frequency in a pattern that is known to both transmitter and receiver. Properly synchronized,

the net effect is to maintain a single logical channel. To an unintended receiver, FHSS appears

to be short-duration impulse noise. Direct-sequence spread-spectrum (DSSS) generates a

redundant bit pattern for each bit to be transmitted. This bit pattern is called a chip (or chipping

code). The longer the chip is, the greater the probability that the original data can be recovered.

Even if one or more bits in the chip are damaged during transmission, statistical techniques

embedded in the radio can recover the original data without-the need for retransmission. To an

unintended receiver, DSSS appears as low power wideband noise and is rejected (ignored) by

most narrowband receivers.

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AirLive WT-2000PCI User Manual Page 34