User guide

HWC_VNSIntro.fm
A31003-W1010-A100-1-7619, July 2005
HiPath Wireless Controller, Access Points and Convergence Software V3.0: User Guide
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Virtual network services (VNS): Introduction
Topology of a VNS
4. A single overall filtering policy applies to all the wireless devices within the VNS. Further
filtering can be applied when the wireless user is authenticated by the RADIUS server.
5. When the HiPath Wireless Controller creates the VNS, it also creates a virtual IP subnet
for that VNS.
6. Each VNS represents a mobility group that, when configured, can be carried across
multiple HiPath Wireless Controllers.
7. Each VNS also offers unique AAA services.
6.3 Topology of a VNS
Before you configure a VNS, you should define global settings that will apply to all VNS
definitions. In the Global Settings screen, identify the location of the RADIUS servers. You also
enable Priority Traffic Handling for voice-over-internet traffic.
In the Topo logy screen, you name a new VNS and begin its configuration
The key choice for a VNS is the type of network assignment, which determines all the other
factors of the VNS. There are two options for network assignment:
● SSID:
● has Captive Portal authentication, or no authentication.
● requires restricted filtering rules before authentication and, after authentication,
filtering rules for group Filter IDs.
● is used for a VNS supporting wireless voice traffic (QoS).
● is used for a VNS supporting third-party APs.
● has WEP and WPA-PSK privacy.
● AAA (Authentication, Authorization and Accounting)
● has 802.1x authentication
● requires filtering rules for group Filter IDs and default filter.
● has WEP and WPA privacy.
In the Topo logy screen, you assign the available Wireless APs (by radio) to the VNS. A Wireless
AP radio will appear in the list as available for VNS assignment until it has been assigned to
four VNSs. After that, it will no longer appear in the list.
After a VNS definition has been saved, the HiPath Wireless Controller updates this information
on the Wireless AP. Each radio acquires up to four SSIDs (one for each VNS it is part of), and
broadcasts these during beacon transmission (unless the SSID beacon is suppressed in the
Topology screen).