Corinex Global ADSL2+ - Manual (Page 116)

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Appendices
Corinex ADSL2+ Wireless Gateway G
but the trade-off produces a signal that is, in effect, louder and thus easier to detect,
rovided that the receiver knows the parameters of the spread-spectrum signal being
broadcast. If a receiver is not tuned to the right frequency, a spread-spectrum signal
looks like background noise. There are two main alternatives, Direct Sequence
Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS).
What is DSSS?
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, 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.
Would the information be intercepted while transmitting on air?
Instant wireless products feature two-fold protection in security. On the hardware
side, as with Direct Sequence Spread Spectrum technology, it generates security
feature of scrambling. On the software side, instant wireless products offer the
encryption function (WEP) to enhance security and access control. Users can
set it up depending upon their needs. Can instant wireless products support file
and printer sharing? Instant wireless products perform the same function as LAN
products. Therefore, instant wireless products can work with NetWare, Windows
NT/2000, or other LAN operating systems to support printer or file sharing.
What is WEP?
WEP is Wired Equivalent Privacy, a data privacy mechanism based on a 64-bit or
128-bit shared key algorithm, as described in the IEEE 802.11 standard.
What is a MAC Address?
The Media Access Control (MAC) address is a unique number assigned by the
manufacturer to any Ethernet networking device, such as a network adapter, that
allows the network to identify it at the hardware level. For all practical purposes,
this number is usually permanent. Unlike IP addresses, which can change every time
a computer logs onto the network, the MAC address of a device stays the same,
making it a valuable identifier for the network.
How do I reset the Gateway to default?
Press the reset button on the rear panel of the Gateway (using a paper clip or pencil
tip) and hold it for at least 10 secs, then release. At this point, the Wireless indicator
and DSL indicator will turn off. The reset is in progress. When the Wireless indicator