ZyXEL Wireless Access Point G1000 91-005-124003B 사용자 설명서

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G-1000 User’s Guide
Chapter 6 Wireless LAN
55
6.4  Configuring Roaming
A wireless station is a device with an IEEE 802.11b or an IEEE 802.11g compliant wireless 
interface. An access point (AP) acts as a bridge between the wireless and wired networks. An 
AP creates its own wireless coverage area. A wireless station can associate with a particular 
access point only if it is within the access point’s coverage area.
In a network environment with multiple access points, wireless stations are able to switch from 
one access point to another as they move between the coverage areas. This is roaming. As the 
wireless station moves from place to place, it is responsible for choosing the most appropriate 
access point depending on the signal strength, network utilization or other factors.
The roaming feature on the access points allows the access points to relay information about 
the wireless stations to each other. When a wireless station moves from a coverage area to 
another, it scans and uses the channel of a new access point, which then informs the access 
points on the LAN about the change. The new information is then propagated to the other 
access points on the LAN. An example is shown in 
With roaming, a wireless LAN mobile user enjoys a continuous connection to the wired 
network through an access point while moving around the wireless LAN.
Enable roaming to exchange the latest bridge information of all wireless stations between APs 
when a wireless station moves between coverage areas. Wireless stations can still associate 
with other APs even if you disable roaming. Enabling roaming ensures correct traffic 
forwarding (bridge tables are updated) and maximum AP efficiency. The AP deletes records 
of wireless stations that associate with other APs (Non-ZyXEL APs may not be able to 
perform this). 802.1x authentication information is not exchanged (at the time of writing).