Appendix D Wireless Lans - ZyXEL Communications VMG1312-B Series User Manual

Wireless LAN Topologies
This sect ion discusses ad- hoc and infrast ruct ure wireless LAN t opologies.
Ad-hoc Wireless LAN Configuration
The sim plest WLAN configurat ion is an independent ( Ad- hoc) WLAN t hat connect s a set of
com put ers wit h wireless adapt ers ( A, B, C) . Any t im e t wo or m ore wireless adapt ers are wit hin
range of each ot her, t hey can set up an independent net work, which is com m only referred t o as an
ad- hoc net work or I ndependent Basic Service Set ( I BSS) . The following diagram shows an exam ple
of not ebook com put ers using wireless adapt ers t o form an ad- hoc wireless LAN.
Figure 194 Peer- t o- Peer Com m unicat ion in an Ad- hoc Net work
BSS
A Basic Service Set ( BSS) exist s when all com m unicat ions bet ween wireless client s or bet ween a
wireless client and a wired net work client go t hrough one access point ( AP) .
I nt ra- BSS t raffic is t raffic bet ween wireless client s in t he BSS. When I nt ra- BSS is enabled, wireless
client A and B can access t he wired net work and com m unicat e wit h each ot her. When I nt ra- BSS is
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Wireless LANs
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