Appendix E Wireless Lans - ZyXEL Communications NBG-418N v2 User Manual

Wire le ss L AN T o po lo g ie s
This section discusses ad-hoc and infrastructure wireless LAN topologies.
Ad- ho c Wire le ss L AN C o nfig ura tio n
The simplest WLAN configuration is an independent (Ad-hoc) WLAN that connects a set of computers
with wireless adapters (A, B, C). Any time two or more wireless adapters are within range of each other,
they can set up an independent network, which is commonly referred to as an ad-hoc network or
Independent Basic Service Set (IBSS). The following diagram shows an example of notebook computers
using wireless adapters to form an ad-hoc wireless LAN.
Fig ure 143
BSS
A Basic Service Set (BSS) exists when all communications between wireless clients or between a wireless
client and a wired network client go through one access point (AP).
Intra-BSS traffic is traffic between wireless clients in the BSS. When Intra-BSS is enabled, wireless client
B
and can access the wired network and communicate with each other. When Intra-BSS is disabled,
wireless client
Peer-to-Peer Communication in an Ad-hoc Network
A and B can still access the wired network but cannot communicate with each other.
NBG-418N v2 User's Guide
A
PPEN DIX
Wire le ss L ANs
205
E
A