Wireless Lan Basics; Wireless Modes; Ad Hoc Mode; Infrastructure Mode - 3Com 3CRGPC10075 User Manual

C

Wireless Modes

Ad Hoc Mode

Infrastructure Mode

SSID/ESSID

BSS/SSID

W
IRELESS
This appendix provides basic information on wireless local networks.
Other terms related to wireless networks that are not included in this
appendix can be found in the
There are two modes in which wireless local networks can operate:
Ad hoc mode
■
Infrastructure mode
■
Ad hoc mode does not require an Access Point or a wired local network.
Wireless stations (for example, notebook with wireless cards installed) can
communicate directly with each other.
In infrastructure mode, one or more Access Points are used to connect
wireless stations to a wired local network. The wireless stations that are
associated with the Access Point can access all resources on the local
network.
Access Points can only function in infrastructure mode and can
communicate only with wireless stations that are set to infrastructure
mode.
A group of wireless stations and a single Access Point, all using the same
ID (SSID), form a Basic Service Set (BSS).
Using the same SSID is essential. Wireless devices that use different SSIDs
may not be able to communicate with each other. However, some Access
Points allow connections from wireless stations that have their SSID set to
or whose SSID is blank (null).
any
LAN B
ASICS
Glossary starting on page 143.