User's Manual

Using the Mobility Services Menu
Installation and User Guide: Airgo Access Point 229
Figure 167: RADIUS Proxy
Configure the following setting on this panel:
Using the Mobility Services Menu
The Layer-3 Mobility feature provides seamless roaming for wireless clients in a wireless network
in which there are multiple subnets in proximity to each other. An example of a network that
requires seamless IP roaming is a multi-story building in which each floor is on a different subnet
and wireless clients need to roam between floors without losing connectivity.
In contrast to Layer-3 roaming, Layer-2 roaming occurs by default when a wireless client roams
between APs on the same subnet. Layer-2 roaming is automatically seamless if IAPP is configured
in the network (see “Configuring Inter Access Point Protocol (IAPP)” on page 95). Across subnets,
Layer-3 mobility is required to avoid the disruption of forced disassociation and reassociation as a
client moves across subnet boundaries. With the Layer-3 Mobility feature, wireless clients move
across subnets without a required IP address change, and application sessions (UPD, TCP, or
HTTP) are uninterrupted.
Layer-3 Mobility is particularly useful in providing Wi-Fi VoIP services. For example, if a Wi-Fi
VoIP phone must change its IP address during a conversation, the call is usually dropped. By
Item Description
Enable RADIUS Proxy
Server
Select the checkbox to enable the RADIUS Proxy server feature, and
click Apply.
NOTE: When RADIUS proxy is enabled, the authentication zone configuration is
deleted. When APs are enrolled into the network, the configuration policy is distributed
to the AP. If RADIUS proxy is turned off, then the authentication zone configuration
must be re-added to the NM Portal and the default policy must be re-generated and
distributed to the managed network to enable authentication services via an external
RADIUS server. Moreover, the external RADIUS server must be re-configured to
accept the individual APs as RADIUS clients.