ZyXEL Communications ZyXEL ZyAIR NWA-3500 - Manual (Page 134)

Chapter 9 Other Wireless Configuration
ZyXEL NWA-3500 User’s Guide
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The following table describes the labels in this screen.
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To activate MAC filtering on an SSID profile, select the correct filter from the
Enable MAC Filtering drop-down list box in the WIRELESS > SSID > Edit screen
and click Apply.
9.5 Configuring Roaming
A wireless station is a device with an IEEE 802.11a/b/g 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 known as
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 other
access points on the LAN about the change. An example is shown in
Figure 78 on page 135 .
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).
Table 40 MAC Address Filter
LABEL DESCRIPTION
Profile Name Type a name to identify this profile.
Filter Action Define the filter action for the list of MAC addresses in the MAC address filter
table.
Select Deny Association to block access to the router. MAC addresses not
listed will be allowed to access the router.
Select Allow Association to permit access to the router. MAC addresses not
listed will be denied access to the router.
MAC Address Enter the MAC addresses (in XX:XX:XX:XX:XX:XX format) of the wireless
station to be allowed or denied access to the ZyXEL Device.
Description Type a name to identify this wireless station.
Apply Click Apply to save your changes.
Reset Click Reset to begin configuring this screen afresh.