Configuring Virtual Access Points - D-Link DWL-8500AP - AirPremier AG Wireless Switching 108 Dualband Access Point Administrator's Manual

D-Link Unified Access Point Administrator's Guide
NOTE: After you configure the radio settings, you must click Update to apply the

Configuring Virtual Access Points

You can configure virtual access points (VAPs) to segment the wireless LAN into multiple
broadcast domains that are the wireless equivalent of Ethernet VLANs. You can configure up
to eight VAPs on a radio. The VAPs simulate multiple APs in one physical access point.
For each VAP, you can customize the security mode to control wireless client access. Each
VAP can also have a unique SSID. Multiple SSIDs make a single access point look like two or
more access points to other systems on the network. By configuring VAPs, you can maintain
better control over broadcast and multicast traffic, which affects network performance.
You can configure each VAP to use a different VLAN, or you can configure multiple VAPs to
use the same VLAN. VAP0 is always enabled and is assigned to VLAN 1 by default.
For the DWL-8500AP, VAP0 is always enabled on both radios, and VAPs can use a VLAN
whether the VLAN is on the same radio or on a different radio.
The access point adds VLAN ID tags to wireless client traffic based on the VLAN ID you
configure on the VAP page or by using the RADIUS server assignment. If you use an external
RADIUS server, you can configure multiple VLANs on each VAP. The external RADIUS
server assigns wireless clients to the VLAN when the clients associate and authenticate. For
more information about using a RADIUS server to manage VLANs, see
RADIUS Server for VLAN Tags"
If wireless clients use a security mode that does not communicate with the RAIDUS server, or
if the RADIUS server does not provide the VLAN information, you can assign a VLAN ID to
each VAP. If the wireless client is not assigned a VLAN through any other method, the AP
assigns the VLAN ID specified in the VAP to all wireless clients that connect to the AP
through that VAP.
NOTE: Before you configure VLANs on the AP, be sure to verify that the switch and
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changes and to save the settings. Changing these access point settings might
cause the AP to stop and restart system processes. Additionally, changing the
Super AG setting will cause the AP to reset. If this happens, wireless clients
will temporarily lose connectivity. We recommend that you change access
point settings when WLAN traffic is low.
DHCP server the Unified Access Point uses can support IEEE 802.1Q
VLAN encapsulation.
on page 122.
"Configuring the