Wireless N150 Long Range AP/Router
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Appendix!2:!Glossary!
Channel! !
A! communication! channel,! also! known! as! channel,! refers! either! to! a! physical!
transmission!medium!such!as!a!wire!or!to!a!logical!connection!over!a!multiplexed!
medium!such!as!a!radio!channel.!It!is!used!to!transfer!an!information!signal,!such!
as!a!digital!bit!stream,!from!one!or!more!transmitters!to!one!or!more!receivers.!If!
there!is!only!one!AP!in!the!range,!select!any!channel!you!like.!The!default!is!Auto.!
If!there!are!several!APs!coexisting!in!the!same!area,!it!is!advisable!that!you!select!a!
different!channel!for!each!AP!to!operate!on,!minimizing!the!interference!between!
neighboring!APs.!For!example,!if!3!American-!standard!APs!coexist!in!one!area,!you!
can!set!their!channels!respectively!to!1,!6!and!11!to!avoid!mutual!interference.!
!
SSID!
Service!set!identifier!(SSID)!is!used!to!identify!a!particular!802.11!wireless!LAN.!It!
is!the! name! of! a! specific! wireless! network.! To! let! your! wireless! network! adapter!
roam!among!different!APs,!you!must!set!all!Aps’!SSID!to!the!same!name.!
!
Wired!Equivalent!Privacy!(WEP)!is!a!security!algorithm!for!IEEE!802.11!wireless!
networks!with!the!intention!to!provide!data!confidentiality!comparable!to!that!of!a!
traditional!wired!network!.WEP,!recognizable!by!the!key!of!10!or!26!hexadecimal!
digits,!is!widely!in!use.!WEP!uses!the!stream!cipher!RC4!for!confidentiality,[5]!and!
the! CRC-32! checksum! for! integrity.! Standard! 64-bit! WEP! uses! a! 40-bit! key! (also!
known!as!WEP-40),!which!is!concatenated!with!a!24-bit!initialization!vector!(IV)!to!
form! the! RC4! key.! The! extended! 128-bit! WEP! protocol! uses! a! 104-bit! key! size!
(WEP-104).!A!152-bit!WEP!is!available!from!some!vendors.!Static!WEP!encryption!
allows! to! include! 4!WEP! Keys! while! dynamic!WEP! encryption! changes! WEP! key!
dynamically.!
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