Users Guide

Table Of Contents
Parameter Description
DoS Prevention If enabled, APs ignore deauthentication frames from clients. This prevents a
successful deauthorization attack from being carried out against the AP. This
does not affect third-party APs. Default: Disabled
HA Discovery
on-association
If enabled, home agent discovery is triggered on client association instead of
home agent discovery based on traffic from client. Mobility on association can
speed up roaming and improve connectivity for clients that do not send many
uplink packets to trigger mobility (VoIP clients). Best practices is to disable this
parameter as it increases IP mobility control traffic between controllers in the
same mobility domain. Enable this parameter only when voice issues are
observed in VoIP clients.
Default: Disabled
NOTE: ha-disc-onassoc parameter works only when IP mobility is enabled and
configured on the controller. For more information about this parameter, see HA
Discovery on Association on page 696
Mobile IP Enables or disables IP mobility for this virtual AP.
Default: Enabled
Preserve Client VLAN If you select this checkbox, clients retain their previous VLAN assignment if the cli-
ent disassociates from an AP and then immediately re-associates either with same
AP or another AP on the same controller.
Remote-AP
Operation
Configures when the virtual AP operates on a remote AP:
l always—Permanently enables the virtual AP (Bridge Mode only). This option
can be used for non-802.1X bridge VAPs.
l backup—Enables the virtual AP if the remote AP cannot connect to the
controller (Bridge Mode only). This option can be used for non-802.1X bridge
VAPs.
l persistent—Permanently enables the virtual AP after the remote AP initially
connects to the controller (Bridge Mode only). This option can be used for any
(Open/PSK/802.1X) bridge VAPs.
l standard—Enables the virtual AP when the remote AP connects to the
controller. This option can be used for any (bridge/split-tunnel/tunnel/d-tunnel)
VAPs.
Station Blacklisting Select the Station Blacklisting checkbox to enable detection of denial of service
(DoS) attacks, such as ping or SYN floods, that are not spoofed deauthorization
attacks.
Default: Enabled
Dell Networking W-Series ArubaOS 6.4.x | User Guide Virtual APs | 478